--- /dev/null
+* Freescale MC13783/MC13892 Power Management Integrated Circuit (PMIC)
+
+Required properties:
+- compatible : Should be "fsl,mc13783" or "fsl,mc13892"
+
+Optional properties:
+- fsl,mc13xxx-uses-adc : Indicate the ADC is being used
+- fsl,mc13xxx-uses-codec : Indicate the Audio Codec is being used
+- fsl,mc13xxx-uses-rtc : Indicate the RTC is being used
+- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used
+
+Sub-nodes:
+- regulators : Contain the regulator nodes. The MC13892 regulators are
+ bound using their names as listed below with their registers and bits
+ for enabling.
+
+ vcoincell : regulator VCOINCELL (register 13, bit 23)
+ sw1 : regulator SW1 (register 24, bit 0)
+ sw2 : regulator SW2 (register 25, bit 0)
+ sw3 : regulator SW3 (register 26, bit 0)
+ sw4 : regulator SW4 (register 27, bit 0)
+ swbst : regulator SWBST (register 29, bit 20)
+ vgen1 : regulator VGEN1 (register 32, bit 0)
+ viohi : regulator VIOHI (register 32, bit 3)
+ vdig : regulator VDIG (register 32, bit 9)
+ vgen2 : regulator VGEN2 (register 32, bit 12)
+ vpll : regulator VPLL (register 32, bit 15)
+ vusb2 : regulator VUSB2 (register 32, bit 18)
+ vgen3 : regulator VGEN3 (register 33, bit 0)
+ vcam : regulator VCAM (register 33, bit 6)
+ vvideo : regulator VVIDEO (register 33, bit 12)
+ vaudio : regulator VAUDIO (register 33, bit 15)
+ vsd : regulator VSD (register 33, bit 18)
+ gpo1 : regulator GPO1 (register 34, bit 6)
+ gpo2 : regulator GPO2 (register 34, bit 8)
+ gpo3 : regulator GPO3 (register 34, bit 10)
+ gpo4 : regulator GPO4 (register 34, bit 12)
+ pwgt1spi : regulator PWGT1SPI (register 34, bit 15)
+ pwgt2spi : regulator PWGT2SPI (register 34, bit 16)
+ vusb : regulator VUSB (register 50, bit 3)
+
+ The bindings details of individual regulator device can be found in:
+ Documentation/devicetree/bindings/regulator/regulator.txt
+
+Examples:
+
+ecspi@70010000 { /* ECSPI1 */
+ fsl,spi-num-chipselects = <2>;
+ cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+ <&gpio3 25 0>; /* GPIO4_25 */
+ status = "okay";
+
+ pmic: mc13892@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mc13892";
+ spi-max-frequency = <6000000>;
+ reg = <0>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <8>;
+
+ regulators {
+ sw1_reg: mc13892__sw1 {
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1375000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw2_reg: mc13892__sw2 {
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+};
--- /dev/null
+Texas Instruments TWL family
+
+The TWLs are Integrated Power Management Chips.
+Some version might contain much more analog function like
+USB transceiver or Audio amplifier.
+These chips are connected to an i2c bus.
+
+
+Required properties:
+- compatible : Must be "ti,twl4030";
+ For Integrated power-management/audio CODEC device used in OMAP3
+ based boards
+- compatible : Must be "ti,twl6030";
+ For Integrated power-management used in OMAP4 based boards
+- interrupts : This i2c device has an IRQ line connected to the main SoC
+- interrupt-controller : Since the twl support several interrupts internally,
+ it is considered as an interrupt controller cascaded to the SoC one.
+- #interrupt-cells = <1>;
+- interrupt-parent : The parent interrupt controller.
+
+Optional node:
+- Child nodes contain in the twl. The twl family is made of several variants
+ that support a different number of features.
+ The children nodes will thus depend of the capability of the variant.
+
+
+Example:
+/*
+ * Integrated Power Management Chip
+ * http://www.ti.com/lit/ds/symlink/twl6030.pdf
+ */
+twl@48 {
+ compatible = "ti,twl6030";
+ reg = <0x48>;
+ interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ twl_rtc {
+ compatible = "ti,twl_rtc";
+ interrupts = <11>;
+ reg = <0>;
+ };
+};
must rely on TCP's error correction to detect data corruption
in the data payload.
- noasyncreaddir
- Disable client's use its local cache to satisfy readdir
- requests. (This does not change correctness; the client uses
- cached metadata only when a lease or capability ensures it is
- valid.)
+ dcache
+ Use the dcache contents to perform negative lookups and
+ readdir when the client has the entire directory contents in
+ its cache. (This does not change correctness; the client uses
+ cached metadata only when a lease or capability ensures it is
+ valid.)
+
+ nodcache
+ Do not use the dcache as above. This avoids a significant amount of
+ complex code, sacrificing performance without affecting correctness,
+ and is useful for tracking down bugs.
+ noasyncreaddir
+ Do not use the dcache as above for readdir.
More Information
================
Compressed data blocks are written to the filesystem as files are read from
the source directory, and checked for duplicates. Once all file data has been
-written the completed inode, directory, fragment, export and uid/gid lookup
-tables are written.
+written the completed inode, directory, fragment, export, uid/gid lookup and
+xattr tables are written.
3.1 Compression options
-----------------------
and at lookup the index is scanned linearly looking for the first filename
alphabetically larger than the filename being looked up. At this point the
location of the metadata block the filename is in has been found.
-The general idea of the index is ensure only one metadata block needs to be
+The general idea of the index is to ensure only one metadata block needs to be
decompressed to do a lookup irrespective of the length of the directory.
This scheme has the advantage that it doesn't require extra memory overhead
and doesn't require much extra storage on disk.
size specified by the card.
"preferred_erase_size" is in bytes.
+
+SD/MMC/SDIO Clock Gating Attribute
+==================================
+
+Read and write access is provided to following attribute.
+This attribute appears only if CONFIG_MMC_CLKGATE is enabled.
+
+ clkgate_delay Tune the clock gating delay with desired value in milliseconds.
+
+echo <desired delay> > /sys/class/mmc_host/mmcX/clkgate_delay
To re-enable read-only access:
echo 1 > /sys/block/mmcblkXbootY/force_ro
+
+The boot partitions can also be locked read only until the next power on,
+with:
+
+echo 1 > /sys/block/mmcblkXbootY/ro_lock_until_next_power_on
+
+This is a feature of the card and not of the kernel. If the card does
+not support boot partition locking, the file will not exist. If the
+feature has been disabled on the card, the file will be read-only.
+
+The boot partitions can also be locked permanently, but this feature is
+not accessible through sysfs in order to avoid accidental or malicious
+bricking.
static struct mcp_plat_data assabet_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
+ .codec = "ucb1x00",
};
static void __init assabet_init(void)
sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
ARRAY_SIZE(assabet_flash_resources));
sa11x0_register_irda(&assabet_irda_data);
+
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
+ ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
sa11x0_register_mcp(&assabet_mcp_data);
}
static struct mcp_plat_data cerf_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
+ .codec = "ucb1x00",
};
static void __init cerf_init(void)
{
platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
+
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
sa11x0_register_mcp(&cerf_mcp_data);
}
#include <linux/timer.h>
#include <linux/gpio.h>
#include <linux/pda_power.h>
+#include <linux/mfd/ucb1x00.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
.num_devs = 1,
};
+static struct ucb1x00_plat_data collie_ucb1x00_data = {
+ .gpio_base = COLLIE_TC35143_GPIO_BASE,
+};
+
static struct mcp_plat_data collie_mcp_data = {
.mccr0 = MCCR0_ADM | MCCR0_ExtClk,
.sclk_rate = 9216000,
- .gpio_base = COLLIE_TC35143_GPIO_BASE,
+ .codec = "ucb1x00",
+ .codec_pdata = &collie_ucb1x00_data,
};
/*
sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
ARRAY_SIZE(collie_flash_resources));
+
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
sa11x0_register_mcp(&collie_mcp_data);
sharpsl_save_param();
static struct resource sa11x0mcp_resources[] = {
[0] = {
.start = __PREG(Ser4MCCR0),
- .end = __PREG(Ser4MCCR0) + 0xffff,
+ .end = __PREG(Ser4MCCR0) + 0x1C - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
+ .start = __PREG(Ser4MCCR1),
+ .end = __PREG(Ser4MCCR1) + 0x4 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
.start = IRQ_Ser4MCP,
.end = IRQ_Ser4MCP,
.flags = IORESOURCE_IRQ,
u32 mccr1;
unsigned int sclk_rate;
int gpio_base;
+ const char *codec;
+ void *codec_pdata;
};
#endif
static struct mcp_plat_data lart_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
+ .codec = "ucb1x00",
};
static void __init lart_init(void)
{
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
sa11x0_register_mcp(&lart_mcp_data);
}
static struct mcp_plat_data shannon_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
+ .codec = "ucb1x00",
};
static void __init shannon_init(void)
{
sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
+
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
sa11x0_register_mcp(&shannon_mcp_data);
}
#include <linux/mtd/partitions.h>
#include <linux/io.h>
#include <linux/gpio.h>
+#include <linux/mfd/ucb1x00.h>
#include <asm/irq.h>
#include <mach/hardware.h>
}
};
+static struct ucb1x00_plat_data simpad_ucb1x00_data = {
+ .gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
+};
+
static struct mcp_plat_data simpad_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
- .gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
+ .codec = "ucb1300",
+ .codec_pdata = &simpad_ucb1x00_data,
};
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
+
+ /*
+ * Setup the PPC unit correctly.
+ */
+ PPDR &= ~PPC_RXD4;
+ PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+ PSDR |= PPC_RXD4;
+ PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+ PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
sa11x0_register_mcp(&simpad_mcp_data);
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
#include <linux/amba/pl022.h>
#include <linux/amba/serial.h>
#include <linux/spi/spi.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
#include <linux/regulator/ab8500.h>
#include <linux/mfd/tc3589x.h>
#include <linux/mfd/tps6105x.h>
-#include <linux/mfd/ab8500/gpio.h>
+#include <linux/mfd/abx500/ab8500-gpio.h>
#include <linux/leds-lp5521.h>
#include <linux/input.h>
#include <linux/smsc911x.h>
#include <linux/amba/bus.h>
#include <linux/irq.h>
#include <linux/i2c.h>
-#include <linux/mfd/ab5500/ab5500.h>
+#include <linux/mfd/abx500/ab5500.h>
#include <asm/hardware/gic.h>
#include <asm/mach/arch.h>
#define __MACH_IRQS_BOARD_MOP500_H
/* Number of AB8500 irqs is taken from header file */
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
#define MOP500_AB8500_IRQ_BASE IRQ_BOARD_START
#define MOP500_AB8500_IRQ_END (MOP500_AB8500_IRQ_BASE \
struct s3c_sdhci_platdata {
unsigned int max_width;
unsigned int host_caps;
+ unsigned int pm_caps;
enum cd_types cd_type;
enum clk_types clk_type;
set->cfg_gpio = pd->cfg_gpio;
if (pd->host_caps)
set->host_caps |= pd->host_caps;
+ if (pd->pm_caps)
+ set->pm_caps |= pd->pm_caps;
if (pd->clk_type)
set->clk_type = pd->clk_type;
}
#define __NR_sendmmsg 1331
#define __NR_process_vm_readv 1332
#define __NR_process_vm_writev 1333
+#define __NR_accept4 1334
#ifdef __KERNEL__
-#define NR_syscalls 310 /* length of syscall table */
+#define NR_syscalls 311 /* length of syscall table */
/*
* The following defines stop scripts/checksyscalls.sh from complaining about
data8 sys_sendmmsg
data8 sys_process_vm_readv
data8 sys_process_vm_writev
+ data8 sys_accept4
.org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
if (!mce_available(&boot_cpu_data))
return -EIO;
- memset(&dev->kobj, 0, sizeof(struct kobject));
+ memset(dev, 0, sizeof(struct device));
dev->id = cpu;
dev->bus = &mce_subsys;
obj-y += lguest/
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_CPU_IDLE) += cpuidle/
-obj-$(CONFIG_MMC) += mmc/
+obj-y += mmc/
obj-$(CONFIG_MEMSTICK) += memstick/
obj-y += leds/
obj-$(CONFIG_INFINIBAND) += infiniband/
INIT_LIST_HEAD(&rbd_dev->node);
INIT_LIST_HEAD(&rbd_dev->snaps);
+ init_rwsem(&rbd_dev->header.snap_rwsem);
+
/* generate unique id: find highest unique id, add one */
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
u8 reg = stmpe->regs[which] - (offset / 8);
u8 mask = 1 << (offset % 8);
- stmpe_reg_write(stmpe, reg, mask);
+ /*
+ * Some variants have single register for gpio set/clear functionality.
+ * For them we need to write 0 to clear and 1 to set.
+ */
+ if (stmpe->regs[STMPE_IDX_GPSR_LSB] == stmpe->regs[STMPE_IDX_GPCR_LSB])
+ stmpe_set_bits(stmpe, reg, mask, val ? mask : 0);
+ else
+ stmpe_reg_write(stmpe, reg, mask);
}
static int stmpe_gpio_direction_output(struct gpio_chip *chip,
if (type == IRQ_TYPE_LEVEL_LOW || type == IRQ_TYPE_LEVEL_HIGH)
return -EINVAL;
+ /* STMPE801 doesn't have RE and FE registers */
+ if (stmpe_gpio->stmpe->partnum == STMPE801)
+ return 0;
+
if (type == IRQ_TYPE_EDGE_RISING)
stmpe_gpio->regs[REG_RE][regoffset] |= mask;
else
int i, j;
for (i = 0; i < CACHE_NR_REGS; i++) {
+ /* STMPE801 doesn't have RE and FE registers */
+ if ((stmpe->partnum == STMPE801) &&
+ (i != REG_IE))
+ continue;
+
for (j = 0; j < num_banks; j++) {
u8 old = stmpe_gpio->oldregs[i][j];
u8 new = stmpe_gpio->regs[i][j];
}
stmpe_reg_write(stmpe, statmsbreg + i, status[i]);
- stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB] + i,
- status[i]);
+
+ /* Edge detect register is not present on 801 */
+ if (stmpe->partnum != STMPE801)
+ stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB]
+ + i, status[i]);
}
return IRQ_HANDLED;
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/interrupt.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
#include <linux/slab.h>
/**
LED driver chips accessed via the I2C bus.
Driver support brightness control and hardware-assisted blinking.
+config LEDS_MAX8997
+ tristate "LED support for MAX8997 PMIC"
+ depends on LEDS_CLASS && MFD_MAX8997
+ help
+ This option enables support for on-chip LED drivers on
+ MAXIM MAX8997 PMIC.
+
config LEDS_TRIGGERS
bool "LED Trigger support"
depends on LEDS_CLASS
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
obj-$(CONFIG_LEDS_RENESAS_TPU) += leds-renesas-tpu.o
+obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
# LED SPI Drivers
obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o
--- /dev/null
+/*
+ * leds-max8997.c - LED class driver for MAX8997 LEDs.
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ * Donggeun Kim <dg77.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/leds.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+#include <linux/platform_device.h>
+
+#define MAX8997_LED_FLASH_SHIFT 3
+#define MAX8997_LED_FLASH_CUR_MASK 0xf8
+#define MAX8997_LED_MOVIE_SHIFT 4
+#define MAX8997_LED_MOVIE_CUR_MASK 0xf0
+
+#define MAX8997_LED_FLASH_MAX_BRIGHTNESS 0x1f
+#define MAX8997_LED_MOVIE_MAX_BRIGHTNESS 0xf
+#define MAX8997_LED_NONE_MAX_BRIGHTNESS 0
+
+#define MAX8997_LED0_FLASH_MASK 0x1
+#define MAX8997_LED0_FLASH_PIN_MASK 0x5
+#define MAX8997_LED0_MOVIE_MASK 0x8
+#define MAX8997_LED0_MOVIE_PIN_MASK 0x28
+
+#define MAX8997_LED1_FLASH_MASK 0x2
+#define MAX8997_LED1_FLASH_PIN_MASK 0x6
+#define MAX8997_LED1_MOVIE_MASK 0x10
+#define MAX8997_LED1_MOVIE_PIN_MASK 0x30
+
+#define MAX8997_LED_BOOST_ENABLE_MASK (1 << 6)
+
+struct max8997_led {
+ struct max8997_dev *iodev;
+ struct led_classdev cdev;
+ bool enabled;
+ int id;
+ enum max8997_led_mode led_mode;
+ struct mutex mutex;
+};
+
+static void max8997_led_clear_mode(struct max8997_led *led,
+ enum max8997_led_mode mode)
+{
+ struct i2c_client *client = led->iodev->i2c;
+ u8 val = 0, mask = 0;
+ int ret;
+
+ switch (mode) {
+ case MAX8997_FLASH_MODE:
+ mask = led->id ?
+ MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
+ break;
+ case MAX8997_MOVIE_MODE:
+ mask = led->id ?
+ MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
+ break;
+ case MAX8997_FLASH_PIN_CONTROL_MODE:
+ mask = led->id ?
+ MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
+ break;
+ case MAX8997_MOVIE_PIN_CONTROL_MODE:
+ mask = led->id ?
+ MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
+ break;
+ default:
+ break;
+ }
+
+ if (mask) {
+ ret = max8997_update_reg(client,
+ MAX8997_REG_LEN_CNTL, val, mask);
+ if (ret)
+ dev_err(led->iodev->dev,
+ "failed to update register(%d)\n", ret);
+ }
+}
+
+static void max8997_led_set_mode(struct max8997_led *led,
+ enum max8997_led_mode mode)
+{
+ int ret;
+ struct i2c_client *client = led->iodev->i2c;
+ u8 mask = 0;
+
+ /* First, clear the previous mode */
+ max8997_led_clear_mode(led, led->led_mode);
+
+ switch (mode) {
+ case MAX8997_FLASH_MODE:
+ mask = led->id ?
+ MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
+ led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
+ break;
+ case MAX8997_MOVIE_MODE:
+ mask = led->id ?
+ MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
+ led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
+ break;
+ case MAX8997_FLASH_PIN_CONTROL_MODE:
+ mask = led->id ?
+ MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
+ led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
+ break;
+ case MAX8997_MOVIE_PIN_CONTROL_MODE:
+ mask = led->id ?
+ MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
+ led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
+ break;
+ default:
+ led->cdev.max_brightness = MAX8997_LED_NONE_MAX_BRIGHTNESS;
+ break;
+ }
+
+ if (mask) {
+ ret = max8997_update_reg(client,
+ MAX8997_REG_LEN_CNTL, mask, mask);
+ if (ret)
+ dev_err(led->iodev->dev,
+ "failed to update register(%d)\n", ret);
+ }
+
+ led->led_mode = mode;
+}
+
+static void max8997_led_enable(struct max8997_led *led, bool enable)
+{
+ int ret;
+ struct i2c_client *client = led->iodev->i2c;
+ u8 val = 0, mask = MAX8997_LED_BOOST_ENABLE_MASK;
+
+ if (led->enabled == enable)
+ return;
+
+ val = enable ? MAX8997_LED_BOOST_ENABLE_MASK : 0;
+
+ ret = max8997_update_reg(client, MAX8997_REG_BOOST_CNTL, val, mask);
+ if (ret)
+ dev_err(led->iodev->dev,
+ "failed to update register(%d)\n", ret);
+
+ led->enabled = enable;
+}
+
+static void max8997_led_set_current(struct max8997_led *led,
+ enum led_brightness value)
+{
+ int ret;
+ struct i2c_client *client = led->iodev->i2c;
+ u8 val = 0, mask = 0, reg = 0;
+
+ switch (led->led_mode) {
+ case MAX8997_FLASH_MODE:
+ case MAX8997_FLASH_PIN_CONTROL_MODE:
+ val = value << MAX8997_LED_FLASH_SHIFT;
+ mask = MAX8997_LED_FLASH_CUR_MASK;
+ reg = led->id ? MAX8997_REG_FLASH2_CUR : MAX8997_REG_FLASH1_CUR;
+ break;
+ case MAX8997_MOVIE_MODE:
+ case MAX8997_MOVIE_PIN_CONTROL_MODE:
+ val = value << MAX8997_LED_MOVIE_SHIFT;
+ mask = MAX8997_LED_MOVIE_CUR_MASK;
+ reg = MAX8997_REG_MOVIE_CUR;
+ break;
+ default:
+ break;
+ }
+
+ if (mask) {
+ ret = max8997_update_reg(client, reg, val, mask);
+ if (ret)
+ dev_err(led->iodev->dev,
+ "failed to update register(%d)\n", ret);
+ }
+}
+
+static void max8997_led_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct max8997_led *led =
+ container_of(led_cdev, struct max8997_led, cdev);
+
+ if (value) {
+ max8997_led_set_current(led, value);
+ max8997_led_enable(led, true);
+ } else {
+ max8997_led_set_current(led, value);
+ max8997_led_enable(led, false);
+ }
+}
+
+static ssize_t max8997_led_show_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct max8997_led *led =
+ container_of(led_cdev, struct max8997_led, cdev);
+ ssize_t ret = 0;
+
+ mutex_lock(&led->mutex);
+
+ switch (led->led_mode) {
+ case MAX8997_FLASH_MODE:
+ ret += sprintf(buf, "FLASH\n");
+ break;
+ case MAX8997_MOVIE_MODE:
+ ret += sprintf(buf, "MOVIE\n");
+ break;
+ case MAX8997_FLASH_PIN_CONTROL_MODE:
+ ret += sprintf(buf, "FLASH_PIN_CONTROL\n");
+ break;
+ case MAX8997_MOVIE_PIN_CONTROL_MODE:
+ ret += sprintf(buf, "MOVIE_PIN_CONTROL\n");
+ break;
+ default:
+ ret += sprintf(buf, "NONE\n");
+ break;
+ }
+
+ mutex_unlock(&led->mutex);
+
+ return ret;
+}
+
+static ssize_t max8997_led_store_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct max8997_led *led =
+ container_of(led_cdev, struct max8997_led, cdev);
+ enum max8997_led_mode mode;
+
+ mutex_lock(&led->mutex);
+
+ if (!strncmp(buf, "FLASH_PIN_CONTROL", 17))
+ mode = MAX8997_FLASH_PIN_CONTROL_MODE;
+ else if (!strncmp(buf, "MOVIE_PIN_CONTROL", 17))
+ mode = MAX8997_MOVIE_PIN_CONTROL_MODE;
+ else if (!strncmp(buf, "FLASH", 5))
+ mode = MAX8997_FLASH_MODE;
+ else if (!strncmp(buf, "MOVIE", 5))
+ mode = MAX8997_MOVIE_MODE;
+ else
+ mode = MAX8997_NONE;
+
+ max8997_led_set_mode(led, mode);
+
+ mutex_unlock(&led->mutex);
+
+ return size;
+}
+
+static DEVICE_ATTR(mode, 0644, max8997_led_show_mode, max8997_led_store_mode);
+
+static int __devinit max8997_led_probe(struct platform_device *pdev)
+{
+ struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct max8997_led *led;
+ char name[20];
+ int ret = 0;
+
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ return -ENODEV;
+ }
+
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (led == NULL) {
+ ret = -ENOMEM;
+ goto err_mem;
+ }
+
+ led->id = pdev->id;
+ snprintf(name, sizeof(name), "max8997-led%d", pdev->id);
+
+ led->cdev.name = name;
+ led->cdev.brightness_set = max8997_led_brightness_set;
+ led->cdev.flags |= LED_CORE_SUSPENDRESUME;
+ led->cdev.brightness = 0;
+ led->iodev = iodev;
+
+ /* initialize mode and brightness according to platform_data */
+ if (pdata->led_pdata) {
+ u8 mode = 0, brightness = 0;
+
+ mode = pdata->led_pdata->mode[led->id];
+ brightness = pdata->led_pdata->brightness[led->id];
+
+ max8997_led_set_mode(led, pdata->led_pdata->mode[led->id]);
+
+ if (brightness > led->cdev.max_brightness)
+ brightness = led->cdev.max_brightness;
+ max8997_led_set_current(led, brightness);
+ led->cdev.brightness = brightness;
+ } else {
+ max8997_led_set_mode(led, MAX8997_NONE);
+ max8997_led_set_current(led, 0);
+ }
+
+ mutex_init(&led->mutex);
+
+ platform_set_drvdata(pdev, led);
+
+ ret = led_classdev_register(&pdev->dev, &led->cdev);
+ if (ret < 0)
+ goto err_led;
+
+ ret = device_create_file(led->cdev.dev, &dev_attr_mode);
+ if (ret != 0) {
+ dev_err(&pdev->dev,
+ "failed to create file: %d\n", ret);
+ goto err_file;
+ }
+
+ return 0;
+
+err_file:
+ led_classdev_unregister(&led->cdev);
+err_led:
+ kfree(led);
+err_mem:
+ return ret;
+}
+
+static int __devexit max8997_led_remove(struct platform_device *pdev)
+{
+ struct max8997_led *led = platform_get_drvdata(pdev);
+
+ device_remove_file(led->cdev.dev, &dev_attr_mode);
+ led_classdev_unregister(&led->cdev);
+ kfree(led);
+
+ return 0;
+}
+
+static struct platform_driver max8997_led_driver = {
+ .driver = {
+ .name = "max8997-led",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8997_led_probe,
+ .remove = __devexit_p(max8997_led_remove),
+};
+
+static int __init max8997_led_init(void)
+{
+ return platform_driver_register(&max8997_led_driver);
+}
+module_init(max8997_led_init);
+
+static void __exit max8997_led_exit(void)
+{
+ platform_driver_unregister(&max8997_led_driver);
+}
+module_exit(max8997_led_exit);
+
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_DESCRIPTION("MAX8997 LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:max8997-led");
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/regmap.h>
#include <linux/mfd/88pm860x.h>
#include <linux/slab.h>
-static inline int pm860x_read_device(struct i2c_client *i2c,
- int reg, int bytes, void *dest)
-{
- unsigned char data;
- int ret;
-
- data = (unsigned char)reg;
- ret = i2c_master_send(i2c, &data, 1);
- if (ret < 0)
- return ret;
-
- ret = i2c_master_recv(i2c, dest, bytes);
- if (ret < 0)
- return ret;
- return 0;
-}
-
-static inline int pm860x_write_device(struct i2c_client *i2c,
- int reg, int bytes, void *src)
-{
- unsigned char buf[bytes + 1];
- int ret;
-
- buf[0] = (unsigned char)reg;
- memcpy(&buf[1], src, bytes);
-
- ret = i2c_master_send(i2c, buf, bytes + 1);
- if (ret < 0)
- return ret;
- return 0;
-}
-
int pm860x_reg_read(struct i2c_client *i2c, int reg)
{
struct pm860x_chip *chip = i2c_get_clientdata(i2c);
- unsigned char data;
+ struct regmap *map = (i2c == chip->client) ? chip->regmap
+ : chip->regmap_companion;
+ unsigned int data;
int ret;
- mutex_lock(&chip->io_lock);
- ret = pm860x_read_device(i2c, reg, 1, &data);
- mutex_unlock(&chip->io_lock);
-
+ ret = regmap_read(map, reg, &data);
if (ret < 0)
return ret;
else
unsigned char data)
{
struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+ struct regmap *map = (i2c == chip->client) ? chip->regmap
+ : chip->regmap_companion;
int ret;
- mutex_lock(&chip->io_lock);
- ret = pm860x_write_device(i2c, reg, 1, &data);
- mutex_unlock(&chip->io_lock);
-
+ ret = regmap_write(map, reg, data);
return ret;
}
EXPORT_SYMBOL(pm860x_reg_write);
int count, unsigned char *buf)
{
struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+ struct regmap *map = (i2c == chip->client) ? chip->regmap
+ : chip->regmap_companion;
int ret;
- mutex_lock(&chip->io_lock);
- ret = pm860x_read_device(i2c, reg, count, buf);
- mutex_unlock(&chip->io_lock);
-
+ ret = regmap_raw_read(map, reg, buf, count);
return ret;
}
EXPORT_SYMBOL(pm860x_bulk_read);
int count, unsigned char *buf)
{
struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+ struct regmap *map = (i2c == chip->client) ? chip->regmap
+ : chip->regmap_companion;
int ret;
- mutex_lock(&chip->io_lock);
- ret = pm860x_write_device(i2c, reg, count, buf);
- mutex_unlock(&chip->io_lock);
-
+ ret = regmap_raw_write(map, reg, buf, count);
return ret;
}
EXPORT_SYMBOL(pm860x_bulk_write);
unsigned char mask, unsigned char data)
{
struct pm860x_chip *chip = i2c_get_clientdata(i2c);
- unsigned char value;
+ struct regmap *map = (i2c == chip->client) ? chip->regmap
+ : chip->regmap_companion;
int ret;
- mutex_lock(&chip->io_lock);
- ret = pm860x_read_device(i2c, reg, 1, &value);
- if (ret < 0)
- goto out;
- value &= ~mask;
- value |= data;
- ret = pm860x_write_device(i2c, reg, 1, &value);
-out:
- mutex_unlock(&chip->io_lock);
+ ret = regmap_update_bits(map, reg, mask, data);
return ret;
}
EXPORT_SYMBOL(pm860x_set_bits);
+static int read_device(struct i2c_client *i2c, int reg,
+ int bytes, void *dest)
+{
+ unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX + 3];
+ unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX + 2];
+ struct i2c_adapter *adap = i2c->adapter;
+ struct i2c_msg msg[2] = {{i2c->addr, 0, 1, msgbuf0},
+ {i2c->addr, I2C_M_RD, 0, msgbuf1},
+ };
+ int num = 1, ret = 0;
+
+ if (dest == NULL)
+ return -EINVAL;
+ msgbuf0[0] = (unsigned char)reg; /* command */
+ msg[1].len = bytes;
+
+ /* if data needs to read back, num should be 2 */
+ if (bytes > 0)
+ num = 2;
+ ret = adap->algo->master_xfer(adap, msg, num);
+ memcpy(dest, msgbuf1, bytes);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int write_device(struct i2c_client *i2c, int reg,
+ int bytes, void *src)
+{
+ unsigned char buf[bytes + 1];
+ struct i2c_adapter *adap = i2c->adapter;
+ struct i2c_msg msg;
+ int ret;
+
+ buf[0] = (unsigned char)reg;
+ memcpy(&buf[1], src, bytes);
+ msg.addr = i2c->addr;
+ msg.flags = 0;
+ msg.len = bytes + 1;
+ msg.buf = buf;
+
+ ret = adap->algo->master_xfer(adap, &msg, 1);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
int pm860x_page_reg_read(struct i2c_client *i2c, int reg)
{
- struct pm860x_chip *chip = i2c_get_clientdata(i2c);
unsigned char zero = 0;
unsigned char data;
int ret;
- mutex_lock(&chip->io_lock);
- pm860x_write_device(i2c, 0xFA, 0, &zero);
- pm860x_write_device(i2c, 0xFB, 0, &zero);
- pm860x_write_device(i2c, 0xFF, 0, &zero);
- ret = pm860x_read_device(i2c, reg, 1, &data);
+ i2c_lock_adapter(i2c->adapter);
+ read_device(i2c, 0xFA, 0, &zero);
+ read_device(i2c, 0xFB, 0, &zero);
+ read_device(i2c, 0xFF, 0, &zero);
+ ret = read_device(i2c, reg, 1, &data);
if (ret >= 0)
ret = (int)data;
- pm860x_write_device(i2c, 0xFE, 0, &zero);
- pm860x_write_device(i2c, 0xFC, 0, &zero);
- mutex_unlock(&chip->io_lock);
+ read_device(i2c, 0xFE, 0, &zero);
+ read_device(i2c, 0xFC, 0, &zero);
+ i2c_unlock_adapter(i2c->adapter);
return ret;
}
EXPORT_SYMBOL(pm860x_page_reg_read);
int pm860x_page_reg_write(struct i2c_client *i2c, int reg,
unsigned char data)
{
- struct pm860x_chip *chip = i2c_get_clientdata(i2c);
unsigned char zero;
int ret;
- mutex_lock(&chip->io_lock);
- pm860x_write_device(i2c, 0xFA, 0, &zero);
- pm860x_write_device(i2c, 0xFB, 0, &zero);
- pm860x_write_device(i2c, 0xFF, 0, &zero);
- ret = pm860x_write_device(i2c, reg, 1, &data);
- pm860x_write_device(i2c, 0xFE, 0, &zero);
- pm860x_write_device(i2c, 0xFC, 0, &zero);
- mutex_unlock(&chip->io_lock);
+ i2c_lock_adapter(i2c->adapter);
+ read_device(i2c, 0xFA, 0, &zero);
+ read_device(i2c, 0xFB, 0, &zero);
+ read_device(i2c, 0xFF, 0, &zero);
+ ret = write_device(i2c, reg, 1, &data);
+ read_device(i2c, 0xFE, 0, &zero);
+ read_device(i2c, 0xFC, 0, &zero);
+ i2c_unlock_adapter(i2c->adapter);
return ret;
}
EXPORT_SYMBOL(pm860x_page_reg_write);
int pm860x_page_bulk_read(struct i2c_client *i2c, int reg,
int count, unsigned char *buf)
{
- struct pm860x_chip *chip = i2c_get_clientdata(i2c);
unsigned char zero = 0;
int ret;
- mutex_lock(&chip->io_lock);
- pm860x_write_device(i2c, 0xFA, 0, &zero);
- pm860x_write_device(i2c, 0xFB, 0, &zero);
- pm860x_write_device(i2c, 0xFF, 0, &zero);
- ret = pm860x_read_device(i2c, reg, count, buf);
- pm860x_write_device(i2c, 0xFE, 0, &zero);
- pm860x_write_device(i2c, 0xFC, 0, &zero);
- mutex_unlock(&chip->io_lock);
+ i2c_lock_adapter(i2c->adapter);
+ read_device(i2c, 0xfa, 0, &zero);
+ read_device(i2c, 0xfb, 0, &zero);
+ read_device(i2c, 0xff, 0, &zero);
+ ret = read_device(i2c, reg, count, buf);
+ read_device(i2c, 0xFE, 0, &zero);
+ read_device(i2c, 0xFC, 0, &zero);
+ i2c_unlock_adapter(i2c->adapter);
return ret;
}
EXPORT_SYMBOL(pm860x_page_bulk_read);
int pm860x_page_bulk_write(struct i2c_client *i2c, int reg,
int count, unsigned char *buf)
{
- struct pm860x_chip *chip = i2c_get_clientdata(i2c);
unsigned char zero = 0;
int ret;
- mutex_lock(&chip->io_lock);
- pm860x_write_device(i2c, 0xFA, 0, &zero);
- pm860x_write_device(i2c, 0xFB, 0, &zero);
- pm860x_write_device(i2c, 0xFF, 0, &zero);
- ret = pm860x_write_device(i2c, reg, count, buf);
- pm860x_write_device(i2c, 0xFE, 0, &zero);
- pm860x_write_device(i2c, 0xFC, 0, &zero);
- mutex_unlock(&chip->io_lock);
+ i2c_lock_adapter(i2c->adapter);
+ read_device(i2c, 0xFA, 0, &zero);
+ read_device(i2c, 0xFB, 0, &zero);
+ read_device(i2c, 0xFF, 0, &zero);
+ ret = write_device(i2c, reg, count, buf);
+ read_device(i2c, 0xFE, 0, &zero);
+ read_device(i2c, 0xFC, 0, &zero);
+ i2c_unlock_adapter(i2c->adapter);
+ i2c_unlock_adapter(i2c->adapter);
return ret;
}
EXPORT_SYMBOL(pm860x_page_bulk_write);
int pm860x_page_set_bits(struct i2c_client *i2c, int reg,
unsigned char mask, unsigned char data)
{
- struct pm860x_chip *chip = i2c_get_clientdata(i2c);
unsigned char zero;
unsigned char value;
int ret;
- mutex_lock(&chip->io_lock);
- pm860x_write_device(i2c, 0xFA, 0, &zero);
- pm860x_write_device(i2c, 0xFB, 0, &zero);
- pm860x_write_device(i2c, 0xFF, 0, &zero);
- ret = pm860x_read_device(i2c, reg, 1, &value);
+ i2c_lock_adapter(i2c->adapter);
+ read_device(i2c, 0xFA, 0, &zero);
+ read_device(i2c, 0xFB, 0, &zero);
+ read_device(i2c, 0xFF, 0, &zero);
+ ret = read_device(i2c, reg, 1, &value);
if (ret < 0)
goto out;
value &= ~mask;
value |= data;
- ret = pm860x_write_device(i2c, reg, 1, &value);
+ ret = write_device(i2c, reg, 1, &value);
out:
- pm860x_write_device(i2c, 0xFE, 0, &zero);
- pm860x_write_device(i2c, 0xFC, 0, &zero);
- mutex_unlock(&chip->io_lock);
+ read_device(i2c, 0xFE, 0, &zero);
+ read_device(i2c, 0xFC, 0, &zero);
+ i2c_unlock_adapter(i2c->adapter);
return ret;
}
EXPORT_SYMBOL(pm860x_page_set_bits);
return 0;
}
+static struct regmap_config pm860x_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
static int __devinit pm860x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct pm860x_platform_data *pdata = client->dev.platform_data;
struct pm860x_chip *chip;
+ int ret;
if (!pdata) {
pr_info("No platform data in %s!\n", __func__);
return -ENOMEM;
chip->id = verify_addr(client);
+ chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ ret = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ ret);
+ kfree(chip);
+ return ret;
+ }
chip->client = client;
i2c_set_clientdata(client, chip);
chip->dev = &client->dev;
- mutex_init(&chip->io_lock);
dev_set_drvdata(chip->dev, chip);
/*
chip->companion_addr = pdata->companion_addr;
chip->companion = i2c_new_dummy(chip->client->adapter,
chip->companion_addr);
+ chip->regmap_companion = regmap_init_i2c(chip->companion,
+ &pm860x_regmap_config);
+ if (IS_ERR(chip->regmap_companion)) {
+ ret = PTR_ERR(chip->regmap_companion);
+ dev_err(&chip->companion->dev,
+ "Failed to allocate register map: %d\n", ret);
+ return ret;
+ }
i2c_set_clientdata(chip->companion, chip);
}
struct pm860x_chip *chip = i2c_get_clientdata(client);
pm860x_device_exit(chip);
- i2c_unregister_device(chip->companion);
+ if (chip->companion) {
+ regmap_exit(chip->regmap_companion);
+ i2c_unregister_device(chip->companion);
+ }
+ regmap_exit(chip->regmap);
kfree(chip);
return 0;
}
config MFD_88PM860X
bool "Support Marvell 88PM8606/88PM8607"
depends on I2C=y && GENERIC_HARDIRQS
+ select REGMAP_I2C
select MFD_CORE
help
This supports for Marvell 88PM8606/88PM8607 Power Management IC.
config TWL4030_CORE
bool "Texas Instruments TWL4030/TWL5030/TWL6030/TPS659x0 Support"
- depends on I2C=y && GENERIC_HARDIRQS
+ depends on I2C=y && GENERIC_HARDIRQS && IRQ_DOMAIN
help
Say yes here if you have TWL4030 / TWL6030 family chip on your board.
This core driver provides register access and IRQ handling
config MFD_STMPE
bool "Support STMicroelectronics STMPE"
- depends on I2C=y && GENERIC_HARDIRQS
+ depends on (I2C=y || SPI_MASTER=y) && GENERIC_HARDIRQS
select MFD_CORE
help
Support for the STMPE family of I/O Expanders from
Keypad: stmpe-keypad
Touchscreen: stmpe-ts
+menu "STMPE Interface Drivers"
+depends on MFD_STMPE
+
+config STMPE_I2C
+ bool "STMPE I2C Inteface"
+ depends on I2C=y
+ default y
+ help
+ This is used to enable I2C interface of STMPE
+
+config STMPE_SPI
+ bool "STMPE SPI Inteface"
+ depends on SPI_MASTER
+ help
+ This is used to enable SPI interface of STMPE
+endmenu
+
config MFD_TC3589X
bool "Support Toshiba TC35892 and variants"
depends on I2C=y && GENERIC_HARDIRQS
config MFD_TC6393XB
bool "Support Toshiba TC6393XB"
- depends on GPIOLIB && ARM
+ depends on GPIOLIB && ARM && HAVE_CLK
select MFD_CORE
select MFD_TMIO
help
additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_S5M_CORE
+ bool "SAMSUNG S5M Series Support"
+ depends on I2C=y && GENERIC_HARDIRQS
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Support for the Samsung Electronics S5M MFD series.
+ This driver provies common support for accessing the device,
+ additional drivers must be enabled in order to use the functionality
+ of the device
+
config MFD_WM8400
tristate "Support Wolfson Microelectronics WM8400"
select MFD_CORE
obj-$(CONFIG_MFD_TI_SSP) += ti-ssp.o
obj-$(CONFIG_MFD_STMPE) += stmpe.o
+obj-$(CONFIG_STMPE_I2C) += stmpe-i2c.o
+obj-$(CONFIG_STMPE_SPI) += stmpe-spi.o
obj-$(CONFIG_MFD_TC3589X) += tc3589x.o
obj-$(CONFIG_MFD_T7L66XB) += t7l66xb.o tmio_core.o
obj-$(CONFIG_MFD_TC6387XB) += tc6387xb.o tmio_core.o
obj-$(CONFIG_TPS65911_COMPARATOR) += tps65911-comparator.o
obj-$(CONFIG_MFD_AAT2870_CORE) += aat2870-core.o
obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
+obj-$(CONFIG_MFD_S5M_CORE) += s5m-core.o s5m-irq.o
aat2870->init(aat2870);
if (aat2870->en_pin >= 0) {
- ret = gpio_request(aat2870->en_pin, "aat2870-en");
+ ret = gpio_request_one(aat2870->en_pin, GPIOF_OUT_INIT_HIGH,
+ "aat2870-en");
if (ret < 0) {
dev_err(&client->dev,
"Failed to request GPIO %d\n", aat2870->en_pin);
goto out_kfree;
}
- gpio_direction_output(aat2870->en_pin, 1);
}
aat2870_enable(aat2870);
return 0;
}
-#ifdef CONFIG_PM
-static int aat2870_i2c_suspend(struct i2c_client *client, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int aat2870_i2c_suspend(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct aat2870_data *aat2870 = i2c_get_clientdata(client);
aat2870_disable(aat2870);
return 0;
}
-static int aat2870_i2c_resume(struct i2c_client *client)
+static int aat2870_i2c_resume(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct aat2870_data *aat2870 = i2c_get_clientdata(client);
struct aat2870_register *reg = NULL;
int i;
return 0;
}
-#else
-#define aat2870_i2c_suspend NULL
-#define aat2870_i2c_resume NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(aat2870_pm_ops, aat2870_i2c_suspend,
+ aat2870_i2c_resume);
-static struct i2c_device_id aat2870_i2c_id_table[] = {
+static const struct i2c_device_id aat2870_i2c_id_table[] = {
{ "aat2870", 0 },
{ }
};
.driver = {
.name = "aat2870",
.owner = THIS_MODULE,
+ .pm = &aat2870_pm_ops,
},
.probe = aat2870_i2c_probe,
.remove = aat2870_i2c_remove,
- .suspend = aat2870_i2c_suspend,
- .resume = aat2870_i2c_resume,
.id_table = aat2870_i2c_id_table,
};
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/random.h>
-#include <linux/mfd/ab5500/ab5500.h>
#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab5500.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
-#include <linux/mfd/ab5500/ab5500.h>
#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab5500.h>
#include <linux/uaccess.h>
#include "ab5500-core.h"
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
#include <linux/regulator/ab8500.h>
/*
#include <linux/platform_device.h>
#include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
static u32 debug_bank;
static u32 debug_address;
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/list.h>
-#include <linux/mfd/ab8500.h>
#include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500/gpadc.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-gpadc.h>
/*
* GPADC register offsets
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/db8500-prcmu.h>
static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/mfd/ab8500.h>
#include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500/sysctrl.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-sysctrl.h>
static struct device *sysctrl_dev;
pci_disable_device(pdev);
}
-static struct pci_device_id cs5535_mfd_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(cs5535_mfd_pci_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_ISA) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA) },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, cs5535_mfd_pci_tbl);
-static struct pci_driver cs5535_mfd_drv = {
+static struct pci_driver cs5535_mfd_driver = {
.name = DRV_NAME,
.id_table = cs5535_mfd_pci_tbl,
.probe = cs5535_mfd_probe,
static int __init cs5535_mfd_init(void)
{
- return pci_register_driver(&cs5535_mfd_drv);
+ return pci_register_driver(&cs5535_mfd_driver);
}
static void __exit cs5535_mfd_exit(void)
{
- pci_unregister_driver(&cs5535_mfd_drv);
+ pci_unregister_driver(&cs5535_mfd_driver);
}
module_init(cs5535_mfd_init);
for (i = 0; i < ARRAY_SIZE(config_inputs); i++) {
int gpio = dm355evm_msp_gpio.base + config_inputs[i].offset;
- gpio_request(gpio, config_inputs[i].label);
- gpio_direction_input(gpio);
+ gpio_request_one(gpio, GPIOF_IN, config_inputs[i].label);
/* make it easy for userspace to see these */
gpio_export(gpio, false);
},
};
-static int __init intel_msic_init(void)
-{
- return platform_driver_register(&intel_msic_driver);
-}
-module_init(intel_msic_init);
-
-static void __exit intel_msic_exit(void)
-{
- platform_driver_unregister(&intel_msic_driver);
-}
-module_exit(intel_msic_exit);
+module_platform_driver(intel_msic_driver);
MODULE_DESCRIPTION("Driver for Intel MSIC");
MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
},
};
-const struct mfd_cell jz4740_adc_cells[] = {
+static struct mfd_cell jz4740_adc_cells[] = {
{
.id = 0,
.name = "jz4740-hwmon",
},
};
-static int __init jz4740_adc_init(void)
-{
- return platform_driver_register(&jz4740_adc_driver);
-}
-module_init(jz4740_adc_init);
-
-static void __exit jz4740_adc_exit(void)
-{
- platform_driver_unregister(&jz4740_adc_driver);
-}
-module_exit(jz4740_adc_exit);
+module_platform_driver(jz4740_adc_driver);
MODULE_DESCRIPTION("JZ4740 SoC ADC driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
},
};
-static struct pci_device_id lpc_sch_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) },
{ 0, }
chip->adc = i2c_new_dummy(chip->i2c->adapter, ADC_I2C_ADDR);
i2c_set_clientdata(chip->adc, chip);
+ device_init_wakeup(&client->dev, 1);
+
max8925_device_init(chip, pdata);
return 0;
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int max8925_suspend(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct max8925_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev) && chip->wakeup_flag)
+ enable_irq_wake(chip->core_irq);
+ return 0;
+}
+
+static int max8925_resume(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct max8925_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev) && chip->wakeup_flag)
+ disable_irq_wake(chip->core_irq);
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max8925_pm_ops, max8925_suspend, max8925_resume);
+
static struct i2c_driver max8925_driver = {
.driver = {
.name = "max8925",
.owner = THIS_MODULE,
+ .pm = &max8925_pm_ops,
},
.probe = max8925_probe,
.remove = __devexit_p(max8925_remove),
{ .name = "max8997-battery", },
{ .name = "max8997-haptic", },
{ .name = "max8997-muic", },
- { .name = "max8997-flash", },
+ { .name = "max8997-led", .id = 1 },
+ { .name = "max8997-led", .id = 2 },
};
int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
if (ret < 0)
goto err;
+ device_init_wakeup(max8998->dev, max8998->wakeup);
+
return ret;
err:
struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
- if (max8998->wakeup)
+ if (device_may_wakeup(dev))
irq_set_irq_wake(max8998->irq, 1);
return 0;
}
struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
- if (max8998->wakeup)
+ if (device_may_wakeup(dev))
irq_set_irq_wake(max8998->irq, 0);
/*
* In LP3974, if IRQ registers are not "read & clear"
#include <linux/spi/spi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13xxx.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
struct mc13xxx {
struct spi_device *spidev;
struct mutex lock;
int irq;
+ int flags;
irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
void *irqdata[MC13XXX_NUM_IRQ];
int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
{
- struct mc13xxx_platform_data *pdata =
- dev_get_platdata(&mc13xxx->spidev->dev);
-
- return pdata->flags;
+ return mc13xxx->flags;
}
EXPORT_SYMBOL(mc13xxx_get_flags);
break;
case MC13XXX_ADC_MODE_SINGLE_CHAN:
- adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+ adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= (channel & 0x7) << MC13XXX_ADC1_CHAN0_SHIFT;
adc1 |= MC13XXX_ADC1_RAND;
break;
case MC13XXX_ADC_MODE_MULT_CHAN:
- adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+ adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
return mc13xxx_add_subdevice_pdata(mc13xxx, format, NULL, 0);
}
+#ifdef CONFIG_OF
+static int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
+{
+ struct device_node *np = mc13xxx->spidev->dev.of_node;
+
+ if (!np)
+ return -ENODEV;
+
+ if (of_get_property(np, "fsl,mc13xxx-uses-adc", NULL))
+ mc13xxx->flags |= MC13XXX_USE_ADC;
+
+ if (of_get_property(np, "fsl,mc13xxx-uses-codec", NULL))
+ mc13xxx->flags |= MC13XXX_USE_CODEC;
+
+ if (of_get_property(np, "fsl,mc13xxx-uses-rtc", NULL))
+ mc13xxx->flags |= MC13XXX_USE_RTC;
+
+ if (of_get_property(np, "fsl,mc13xxx-uses-touch", NULL))
+ mc13xxx->flags |= MC13XXX_USE_TOUCHSCREEN;
+
+ return 0;
+}
+#else
+static inline int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
+{
+ return -ENODEV;
+}
+#endif
+
+static const struct spi_device_id mc13xxx_device_id[] = {
+ {
+ .name = "mc13783",
+ .driver_data = MC13XXX_ID_MC13783,
+ }, {
+ .name = "mc13892",
+ .driver_data = MC13XXX_ID_MC13892,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
+
+static const struct of_device_id mc13xxx_dt_ids[] = {
+ { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, },
+ { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
+
static int mc13xxx_probe(struct spi_device *spi)
{
+ const struct of_device_id *of_id;
+ struct spi_driver *sdrv = to_spi_driver(spi->dev.driver);
struct mc13xxx *mc13xxx;
struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev);
enum mc13xxx_id id;
int ret;
- if (!pdata) {
- dev_err(&spi->dev, "invalid platform data\n");
- return -EINVAL;
- }
+ of_id = of_match_device(mc13xxx_dt_ids, &spi->dev);
+ if (of_id)
+ sdrv->id_table = &mc13xxx_device_id[(enum mc13xxx_id) of_id->data];
mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
if (!mc13xxx)
mc13xxx_unlock(mc13xxx);
- if (pdata->flags & MC13XXX_USE_ADC)
+ if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
+ mc13xxx->flags = pdata->flags;
+
+ if (mc13xxx->flags & MC13XXX_USE_ADC)
mc13xxx_add_subdevice(mc13xxx, "%s-adc");
- if (pdata->flags & MC13XXX_USE_CODEC)
+ if (mc13xxx->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice(mc13xxx, "%s-codec");
- mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
- &pdata->regulators, sizeof(pdata->regulators));
-
- if (pdata->flags & MC13XXX_USE_RTC)
+ if (mc13xxx->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
- if (pdata->flags & MC13XXX_USE_TOUCHSCREEN)
+ if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice(mc13xxx, "%s-ts");
- if (pdata->leds)
+ if (pdata) {
+ mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
+ &pdata->regulators, sizeof(pdata->regulators));
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
pdata->leds, sizeof(*pdata->leds));
-
- if (pdata->buttons)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
pdata->buttons, sizeof(*pdata->buttons));
+ } else {
+ mc13xxx_add_subdevice(mc13xxx, "%s-regulator");
+ mc13xxx_add_subdevice(mc13xxx, "%s-led");
+ mc13xxx_add_subdevice(mc13xxx, "%s-pwrbutton");
+ }
return 0;
}
return 0;
}
-static const struct spi_device_id mc13xxx_device_id[] = {
- {
- .name = "mc13783",
- .driver_data = MC13XXX_ID_MC13783,
- }, {
- .name = "mc13892",
- .driver_data = MC13XXX_ID_MC13892,
- }, {
- /* sentinel */
- }
-};
-MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
-
static struct spi_driver mc13xxx_driver = {
.id_table = mc13xxx_device_id,
.driver = {
.name = "mc13xxx",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
+ .of_match_table = mc13xxx_dt_ids,
},
.probe = mc13xxx_probe,
.remove = __devexit_p(mc13xxx_remove),
#define to_mcp(d) container_of(d, struct mcp, attached_device)
#define to_mcp_driver(d) container_of(d, struct mcp_driver, drv)
+static const struct mcp_device_id *mcp_match_id(const struct mcp_device_id *id,
+ const char *codec)
+{
+ while (id->name[0]) {
+ if (strcmp(codec, id->name) == 0)
+ return id;
+ id++;
+ }
+ return NULL;
+}
+
+const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp)
+{
+ const struct mcp_driver *driver =
+ to_mcp_driver(mcp->attached_device.driver);
+
+ return mcp_match_id(driver->id_table, mcp->codec);
+}
+EXPORT_SYMBOL(mcp_get_device_id);
+
static int mcp_bus_match(struct device *dev, struct device_driver *drv)
{
- return 1;
+ const struct mcp *mcp = to_mcp(dev);
+ const struct mcp_driver *driver = to_mcp_driver(drv);
+
+ if (driver->id_table)
+ return !!mcp_match_id(driver->id_table, mcp->codec);
+
+ return 0;
}
static int mcp_bus_probe(struct device *dev)
return ret;
}
+static int mcp_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct mcp *mcp = to_mcp(dev);
+
+ add_uevent_var(env, "MODALIAS=%s%s", MCP_MODULE_PREFIX, mcp->codec);
+ return 0;
+}
+
static struct bus_type mcp_bus_type = {
.name = "mcp",
.match = mcp_bus_match,
+ .uevent = mcp_bus_uevent,
.probe = mcp_bus_probe,
.remove = mcp_bus_remove,
.suspend = mcp_bus_suspend,
}
EXPORT_SYMBOL(mcp_host_alloc);
-int mcp_host_register(struct mcp *mcp)
+int mcp_host_register(struct mcp *mcp, void *pdata)
{
+ if (!mcp->codec)
+ return -EINVAL;
+
+ mcp->attached_device.platform_data = pdata;
dev_set_name(&mcp->attached_device, "mcp0");
+ request_module("%s%s", MCP_MODULE_PREFIX, mcp->codec);
return device_register(&mcp->attached_device);
}
EXPORT_SYMBOL(mcp_host_register);
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/mfd/mcp.h>
+#include <linux/io.h>
#include <mach/dma.h>
#include <mach/hardware.h>
#include <asm/system.h>
#include <mach/mcp.h>
-#include <mach/assabet.h>
-
+/* Register offsets */
+#define MCCR0 0x00
+#define MCDR0 0x08
+#define MCDR1 0x0C
+#define MCDR2 0x10
+#define MCSR 0x18
+#define MCCR1 0x00
struct mcp_sa11x0 {
- u32 mccr0;
- u32 mccr1;
+ u32 mccr0;
+ u32 mccr1;
+ unsigned char *mccr0_base;
+ unsigned char *mccr1_base;
};
#define priv(mcp) ((struct mcp_sa11x0 *)mcp_priv(mcp))
static void
mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor)
{
- unsigned int mccr0;
+ struct mcp_sa11x0 *priv = priv(mcp);
divisor /= 32;
- mccr0 = Ser4MCCR0 & ~0x00007f00;
- mccr0 |= divisor << 8;
- Ser4MCCR0 = mccr0;
+ priv->mccr0 &= ~0x00007f00;
+ priv->mccr0 |= divisor << 8;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
}
static void
mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor)
{
- unsigned int mccr0;
+ struct mcp_sa11x0 *priv = priv(mcp);
divisor /= 32;
- mccr0 = Ser4MCCR0 & ~0x0000007f;
- mccr0 |= divisor;
- Ser4MCCR0 = mccr0;
+ priv->mccr0 &= ~0x0000007f;
+ priv->mccr0 |= divisor;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
}
/*
{
int ret = -ETIME;
int i;
+ u32 mcpreg;
+ struct mcp_sa11x0 *priv = priv(mcp);
- Ser4MCDR2 = reg << 17 | MCDR2_Wr | (val & 0xffff);
+ mcpreg = reg << 17 | MCDR2_Wr | (val & 0xffff);
+ __raw_writel(mcpreg, priv->mccr0_base + MCDR2);
for (i = 0; i < 2; i++) {
udelay(mcp->rw_timeout);
- if (Ser4MCSR & MCSR_CWC) {
+ mcpreg = __raw_readl(priv->mccr0_base + MCSR);
+ if (mcpreg & MCSR_CWC) {
ret = 0;
break;
}
{
int ret = -ETIME;
int i;
+ u32 mcpreg;
+ struct mcp_sa11x0 *priv = priv(mcp);
- Ser4MCDR2 = reg << 17 | MCDR2_Rd;
+ mcpreg = reg << 17 | MCDR2_Rd;
+ __raw_writel(mcpreg, priv->mccr0_base + MCDR2);
for (i = 0; i < 2; i++) {
udelay(mcp->rw_timeout);
- if (Ser4MCSR & MCSR_CRC) {
- ret = Ser4MCDR2 & 0xffff;
+ mcpreg = __raw_readl(priv->mccr0_base + MCSR);
+ if (mcpreg & MCSR_CRC) {
+ ret = __raw_readl(priv->mccr0_base + MCDR2)
+ & 0xffff;
break;
}
}
static void mcp_sa11x0_enable(struct mcp *mcp)
{
- Ser4MCSR = -1;
- Ser4MCCR0 |= MCCR0_MCE;
+ struct mcp_sa11x0 *priv = priv(mcp);
+
+ __raw_writel(-1, priv->mccr0_base + MCSR);
+ priv->mccr0 |= MCCR0_MCE;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
}
static void mcp_sa11x0_disable(struct mcp *mcp)
{
- Ser4MCCR0 &= ~MCCR0_MCE;
+ struct mcp_sa11x0 *priv = priv(mcp);
+
+ priv->mccr0 &= ~MCCR0_MCE;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
}
/*
struct mcp_plat_data *data = pdev->dev.platform_data;
struct mcp *mcp;
int ret;
+ struct mcp_sa11x0 *priv;
+ struct resource *res_mem0, *res_mem1;
+ u32 size0, size1;
if (!data)
return -ENODEV;
- if (!request_mem_region(0x80060000, 0x60, "sa11x0-mcp"))
+ if (!data->codec)
+ return -ENODEV;
+
+ res_mem0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res_mem0)
+ return -ENODEV;
+ size0 = res_mem0->end - res_mem0->start + 1;
+
+ res_mem1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res_mem1)
+ return -ENODEV;
+ size1 = res_mem1->end - res_mem1->start + 1;
+
+ if (!request_mem_region(res_mem0->start, size0, "sa11x0-mcp"))
return -EBUSY;
+ if (!request_mem_region(res_mem1->start, size1, "sa11x0-mcp")) {
+ ret = -EBUSY;
+ goto release;
+ }
+
mcp = mcp_host_alloc(&pdev->dev, sizeof(struct mcp_sa11x0));
if (!mcp) {
ret = -ENOMEM;
- goto release;
+ goto release2;
}
+ priv = priv(mcp);
+
mcp->owner = THIS_MODULE;
mcp->ops = &mcp_sa11x0;
mcp->sclk_rate = data->sclk_rate;
- mcp->dma_audio_rd = DMA_Ser4MCP0Rd;
- mcp->dma_audio_wr = DMA_Ser4MCP0Wr;
- mcp->dma_telco_rd = DMA_Ser4MCP1Rd;
- mcp->dma_telco_wr = DMA_Ser4MCP1Wr;
- mcp->gpio_base = data->gpio_base;
+ mcp->dma_audio_rd = DDAR_DevAdd(res_mem0->start + MCDR0)
+ + DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
+ mcp->dma_audio_wr = DDAR_DevAdd(res_mem0->start + MCDR0)
+ + DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
+ mcp->dma_telco_rd = DDAR_DevAdd(res_mem0->start + MCDR1)
+ + DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
+ mcp->dma_telco_wr = DDAR_DevAdd(res_mem0->start + MCDR1)
+ + DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
+ mcp->codec = data->codec;
platform_set_drvdata(pdev, mcp);
- if (machine_is_assabet()) {
- ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
- }
-
- /*
- * Setup the PPC unit correctly.
- */
- PPDR &= ~PPC_RXD4;
- PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
- PSDR |= PPC_RXD4;
- PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
- PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
-
/*
* Initialise device. Note that we initially
* set the sampling rate to minimum.
*/
- Ser4MCSR = -1;
- Ser4MCCR1 = data->mccr1;
- Ser4MCCR0 = data->mccr0 | 0x7f7f;
+ priv->mccr0_base = ioremap(res_mem0->start, size0);
+ priv->mccr1_base = ioremap(res_mem1->start, size1);
+
+ __raw_writel(-1, priv->mccr0_base + MCSR);
+ priv->mccr1 = data->mccr1;
+ priv->mccr0 = data->mccr0 | 0x7f7f;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
+ __raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
/*
* Calculate the read/write timeout (us) from the bit clock
mcp->rw_timeout = (64 * 3 * 1000000 + mcp->sclk_rate - 1) /
mcp->sclk_rate;
- ret = mcp_host_register(mcp);
+ ret = mcp_host_register(mcp, data->codec_pdata);
if (ret == 0)
goto out;
+ release2:
+ release_mem_region(res_mem1->start, size1);
release:
- release_mem_region(0x80060000, 0x60);
+ release_mem_region(res_mem0->start, size0);
platform_set_drvdata(pdev, NULL);
out:
return ret;
}
-static int mcp_sa11x0_remove(struct platform_device *dev)
+static int mcp_sa11x0_remove(struct platform_device *pdev)
{
- struct mcp *mcp = platform_get_drvdata(dev);
+ struct mcp *mcp = platform_get_drvdata(pdev);
+ struct mcp_sa11x0 *priv = priv(mcp);
+ struct resource *res_mem;
+ u32 size;
- platform_set_drvdata(dev, NULL);
+ platform_set_drvdata(pdev, NULL);
mcp_host_unregister(mcp);
- release_mem_region(0x80060000, 0x60);
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res_mem) {
+ size = res_mem->end - res_mem->start + 1;
+ release_mem_region(res_mem->start, size);
+ }
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res_mem) {
+ size = res_mem->end - res_mem->start + 1;
+ release_mem_region(res_mem->start, size);
+ }
+ iounmap(priv->mccr0_base);
+ iounmap(priv->mccr1_base);
return 0;
}
static int mcp_sa11x0_suspend(struct platform_device *dev, pm_message_t state)
{
struct mcp *mcp = platform_get_drvdata(dev);
+ struct mcp_sa11x0 *priv = priv(mcp);
+ u32 mccr0;
- priv(mcp)->mccr0 = Ser4MCCR0;
- priv(mcp)->mccr1 = Ser4MCCR1;
- Ser4MCCR0 &= ~MCCR0_MCE;
+ mccr0 = priv->mccr0 & ~MCCR0_MCE;
+ __raw_writel(mccr0, priv->mccr0_base + MCCR0);
return 0;
}
static int mcp_sa11x0_resume(struct platform_device *dev)
{
struct mcp *mcp = platform_get_drvdata(dev);
+ struct mcp_sa11x0 *priv = priv(mcp);
- Ser4MCCR1 = priv(mcp)->mccr1;
- Ser4MCCR0 = priv(mcp)->mccr0;
+ __raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
+ __raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
return 0;
}
.resume = mcp_sa11x0_resume,
.driver = {
.name = "sa11x0-mcp",
+ .owner = THIS_MODULE,
},
};
/*
* This needs re-working
*/
-static int __init mcp_sa11x0_init(void)
-{
- return platform_driver_register(&mcp_sa11x0_driver);
-}
-
-static void __exit mcp_sa11x0_exit(void)
-{
- platform_driver_unregister(&mcp_sa11x0_driver);
-}
-
-module_init(mcp_sa11x0_init);
-module_exit(mcp_sa11x0_exit);
+module_platform_driver(mcp_sa11x0_driver);
MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
MODULE_DESCRIPTION("SA11x0 multimedia communications port driver");
spin_lock_irqsave(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
- if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
- gpio_request(pdata->ehci_data->reset_gpio_port[0],
- "USB1 PHY reset");
- gpio_direction_output
- (pdata->ehci_data->reset_gpio_port[0], 0);
- }
+ if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
+ gpio_request_one(pdata->ehci_data->reset_gpio_port[0],
+ GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
- if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
- gpio_request(pdata->ehci_data->reset_gpio_port[1],
- "USB2 PHY reset");
- gpio_direction_output
- (pdata->ehci_data->reset_gpio_port[1], 0);
- }
+ if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
+ gpio_request_one(pdata->ehci_data->reset_gpio_port[1],
+ GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(10);
.remove = __devexit_p(pcf50633_adc_remove),
};
-static int __init pcf50633_adc_init(void)
-{
- return platform_driver_register(&pcf50633_adc_driver);
-}
-module_init(pcf50633_adc_init);
-
-static void __exit pcf50633_adc_exit(void)
-{
- platform_driver_unregister(&pcf50633_adc_driver);
-}
-module_exit(pcf50633_adc_exit);
+module_platform_driver(pcf50633_adc_driver);
MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
MODULE_DESCRIPTION("PCF50633 adc driver");
--- /dev/null
+/*
+ * s5m87xx.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+#include <linux/mfd/s5m87xx/s5m-pmic.h>
+#include <linux/mfd/s5m87xx/s5m-rtc.h>
+#include <linux/regmap.h>
+
+static struct mfd_cell s5m87xx_devs[] = {
+ {
+ .name = "s5m8767-pmic",
+ }, {
+ .name = "s5m-rtc",
+ },
+};
+
+int s5m_reg_read(struct s5m87xx_dev *s5m87xx, u8 reg, void *dest)
+{
+ return regmap_read(s5m87xx->regmap, reg, dest);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_read);
+
+int s5m_bulk_read(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf)
+{
+ return regmap_bulk_read(s5m87xx->regmap, reg, buf, count);;
+}
+EXPORT_SYMBOL_GPL(s5m_bulk_read);
+
+int s5m_reg_write(struct s5m87xx_dev *s5m87xx, u8 reg, u8 value)
+{
+ return regmap_write(s5m87xx->regmap, reg, value);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_write);
+
+int s5m_bulk_write(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf)
+{
+ return regmap_raw_write(s5m87xx->regmap, reg, buf, count * sizeof(u16));
+}
+EXPORT_SYMBOL_GPL(s5m_bulk_write);
+
+int s5m_reg_update(struct s5m87xx_dev *s5m87xx, u8 reg, u8 val, u8 mask)
+{
+ return regmap_update_bits(s5m87xx->regmap, reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_update);
+
+static struct regmap_config s5m_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int s5m87xx_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct s5m_platform_data *pdata = i2c->dev.platform_data;
+ struct s5m87xx_dev *s5m87xx;
+ int ret = 0;
+ int error;
+
+ s5m87xx = kzalloc(sizeof(struct s5m87xx_dev), GFP_KERNEL);
+ if (s5m87xx == NULL)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, s5m87xx);
+ s5m87xx->dev = &i2c->dev;
+ s5m87xx->i2c = i2c;
+ s5m87xx->irq = i2c->irq;
+ s5m87xx->type = id->driver_data;
+
+ if (pdata) {
+ s5m87xx->device_type = pdata->device_type;
+ s5m87xx->ono = pdata->ono;
+ s5m87xx->irq_base = pdata->irq_base;
+ s5m87xx->wakeup = pdata->wakeup;
+ }
+
+ s5m87xx->regmap = regmap_init_i2c(i2c, &s5m_regmap_config);
+ if (IS_ERR(s5m87xx->regmap)) {
+ error = PTR_ERR(s5m87xx->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ error);
+ goto err;
+ }
+
+ s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
+ i2c_set_clientdata(s5m87xx->rtc, s5m87xx);
+
+ if (pdata->cfg_pmic_irq)
+ pdata->cfg_pmic_irq();
+
+ s5m_irq_init(s5m87xx);
+
+ pm_runtime_set_active(s5m87xx->dev);
+
+ ret = mfd_add_devices(s5m87xx->dev, -1,
+ s5m87xx_devs, ARRAY_SIZE(s5m87xx_devs),
+ NULL, 0);
+
+ if (ret < 0)
+ goto err;
+
+ return ret;
+
+err:
+ mfd_remove_devices(s5m87xx->dev);
+ s5m_irq_exit(s5m87xx);
+ i2c_unregister_device(s5m87xx->rtc);
+ regmap_exit(s5m87xx->regmap);
+ kfree(s5m87xx);
+ return ret;
+}
+
+static int s5m87xx_i2c_remove(struct i2c_client *i2c)
+{
+ struct s5m87xx_dev *s5m87xx = i2c_get_clientdata(i2c);
+
+ mfd_remove_devices(s5m87xx->dev);
+ s5m_irq_exit(s5m87xx);
+ i2c_unregister_device(s5m87xx->rtc);
+ regmap_exit(s5m87xx->regmap);
+ kfree(s5m87xx);
+ return 0;
+}
+
+static const struct i2c_device_id s5m87xx_i2c_id[] = {
+ { "s5m87xx", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, s5m87xx_i2c_id);
+
+static struct i2c_driver s5m87xx_i2c_driver = {
+ .driver = {
+ .name = "s5m87xx",
+ .owner = THIS_MODULE,
+ },
+ .probe = s5m87xx_i2c_probe,
+ .remove = s5m87xx_i2c_remove,
+ .id_table = s5m87xx_i2c_id,
+};
+
+static int __init s5m87xx_i2c_init(void)
+{
+ return i2c_add_driver(&s5m87xx_i2c_driver);
+}
+
+subsys_initcall(s5m87xx_i2c_init);
+
+static void __exit s5m87xx_i2c_exit(void)
+{
+ i2c_del_driver(&s5m87xx_i2c_driver);
+}
+module_exit(s5m87xx_i2c_exit);
+
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("Core support for the S5M MFD");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * s5m-irq.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+
+struct s5m_irq_data {
+ int reg;
+ int mask;
+};
+
+static struct s5m_irq_data s5m8767_irqs[] = {
+ [S5M8767_IRQ_PWRR] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_PWRR_MASK,
+ },
+ [S5M8767_IRQ_PWRF] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_PWRF_MASK,
+ },
+ [S5M8767_IRQ_PWR1S] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_PWR1S_MASK,
+ },
+ [S5M8767_IRQ_JIGR] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_JIGR_MASK,
+ },
+ [S5M8767_IRQ_JIGF] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_JIGF_MASK,
+ },
+ [S5M8767_IRQ_LOWBAT2] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_LOWBAT2_MASK,
+ },
+ [S5M8767_IRQ_LOWBAT1] = {
+ .reg = 1,
+ .mask = S5M8767_IRQ_LOWBAT1_MASK,
+ },
+ [S5M8767_IRQ_MRB] = {
+ .reg = 2,
+ .mask = S5M8767_IRQ_MRB_MASK,
+ },
+ [S5M8767_IRQ_DVSOK2] = {
+ .reg = 2,
+ .mask = S5M8767_IRQ_DVSOK2_MASK,
+ },
+ [S5M8767_IRQ_DVSOK3] = {
+ .reg = 2,
+ .mask = S5M8767_IRQ_DVSOK3_MASK,
+ },
+ [S5M8767_IRQ_DVSOK4] = {
+ .reg = 2,
+ .mask = S5M8767_IRQ_DVSOK4_MASK,
+ },
+ [S5M8767_IRQ_RTC60S] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_RTC60S_MASK,
+ },
+ [S5M8767_IRQ_RTCA1] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_RTCA1_MASK,
+ },
+ [S5M8767_IRQ_RTCA2] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_RTCA2_MASK,
+ },
+ [S5M8767_IRQ_SMPL] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_SMPL_MASK,
+ },
+ [S5M8767_IRQ_RTC1S] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_RTC1S_MASK,
+ },
+ [S5M8767_IRQ_WTSR] = {
+ .reg = 3,
+ .mask = S5M8767_IRQ_WTSR_MASK,
+ },
+};
+
+static struct s5m_irq_data s5m8763_irqs[] = {
+ [S5M8763_IRQ_DCINF] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_DCINF_MASK,
+ },
+ [S5M8763_IRQ_DCINR] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_DCINR_MASK,
+ },
+ [S5M8763_IRQ_JIGF] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_JIGF_MASK,
+ },
+ [S5M8763_IRQ_JIGR] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_JIGR_MASK,
+ },
+ [S5M8763_IRQ_PWRONF] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_PWRONF_MASK,
+ },
+ [S5M8763_IRQ_PWRONR] = {
+ .reg = 1,
+ .mask = S5M8763_IRQ_PWRONR_MASK,
+ },
+ [S5M8763_IRQ_WTSREVNT] = {
+ .reg = 2,
+ .mask = S5M8763_IRQ_WTSREVNT_MASK,
+ },
+ [S5M8763_IRQ_SMPLEVNT] = {
+ .reg = 2,
+ .mask = S5M8763_IRQ_SMPLEVNT_MASK,
+ },
+ [S5M8763_IRQ_ALARM1] = {
+ .reg = 2,
+ .mask = S5M8763_IRQ_ALARM1_MASK,
+ },
+ [S5M8763_IRQ_ALARM0] = {
+ .reg = 2,
+ .mask = S5M8763_IRQ_ALARM0_MASK,
+ },
+ [S5M8763_IRQ_ONKEY1S] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_ONKEY1S_MASK,
+ },
+ [S5M8763_IRQ_TOPOFFR] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_TOPOFFR_MASK,
+ },
+ [S5M8763_IRQ_DCINOVPR] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_DCINOVPR_MASK,
+ },
+ [S5M8763_IRQ_CHGRSTF] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_CHGRSTF_MASK,
+ },
+ [S5M8763_IRQ_DONER] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_DONER_MASK,
+ },
+ [S5M8763_IRQ_CHGFAULT] = {
+ .reg = 3,
+ .mask = S5M8763_IRQ_CHGFAULT_MASK,
+ },
+ [S5M8763_IRQ_LOBAT1] = {
+ .reg = 4,
+ .mask = S5M8763_IRQ_LOBAT1_MASK,
+ },
+ [S5M8763_IRQ_LOBAT2] = {
+ .reg = 4,
+ .mask = S5M8763_IRQ_LOBAT2_MASK,
+ },
+};
+
+static inline struct s5m_irq_data *
+irq_to_s5m8767_irq(struct s5m87xx_dev *s5m87xx, int irq)
+{
+ return &s5m8767_irqs[irq - s5m87xx->irq_base];
+}
+
+static void s5m8767_irq_lock(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+
+ mutex_lock(&s5m87xx->irqlock);
+}
+
+static void s5m8767_irq_sync_unlock(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
+ if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
+ s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
+ s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
+ s5m87xx->irq_masks_cur[i]);
+ }
+ }
+
+ mutex_unlock(&s5m87xx->irqlock);
+}
+
+static void s5m8767_irq_unmask(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
+ data->irq);
+
+ s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
+}
+
+static void s5m8767_irq_mask(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
+ data->irq);
+
+ s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
+}
+
+static struct irq_chip s5m8767_irq_chip = {
+ .name = "s5m8767",
+ .irq_bus_lock = s5m8767_irq_lock,
+ .irq_bus_sync_unlock = s5m8767_irq_sync_unlock,
+ .irq_mask = s5m8767_irq_mask,
+ .irq_unmask = s5m8767_irq_unmask,
+};
+
+static inline struct s5m_irq_data *
+irq_to_s5m8763_irq(struct s5m87xx_dev *s5m87xx, int irq)
+{
+ return &s5m8763_irqs[irq - s5m87xx->irq_base];
+}
+
+static void s5m8763_irq_lock(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+
+ mutex_lock(&s5m87xx->irqlock);
+}
+
+static void s5m8763_irq_sync_unlock(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
+ if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
+ s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
+ s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
+ s5m87xx->irq_masks_cur[i]);
+ }
+ }
+
+ mutex_unlock(&s5m87xx->irqlock);
+}
+
+static void s5m8763_irq_unmask(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
+ data->irq);
+
+ s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
+}
+
+static void s5m8763_irq_mask(struct irq_data *data)
+{
+ struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+ struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
+ data->irq);
+
+ s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
+}
+
+static struct irq_chip s5m8763_irq_chip = {
+ .name = "s5m8763",
+ .irq_bus_lock = s5m8763_irq_lock,
+ .irq_bus_sync_unlock = s5m8763_irq_sync_unlock,
+ .irq_mask = s5m8763_irq_mask,
+ .irq_unmask = s5m8763_irq_unmask,
+};
+
+
+static irqreturn_t s5m8767_irq_thread(int irq, void *data)
+{
+ struct s5m87xx_dev *s5m87xx = data;
+ u8 irq_reg[NUM_IRQ_REGS-1];
+ int ret;
+ int i;
+
+
+ ret = s5m_bulk_read(s5m87xx, S5M8767_REG_INT1,
+ NUM_IRQ_REGS - 1, irq_reg);
+ if (ret < 0) {
+ dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ for (i = 0; i < NUM_IRQ_REGS - 1; i++)
+ irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
+
+ for (i = 0; i < S5M8767_IRQ_NR; i++) {
+ if (irq_reg[s5m8767_irqs[i].reg - 1] & s5m8767_irqs[i].mask)
+ handle_nested_irq(s5m87xx->irq_base + i);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t s5m8763_irq_thread(int irq, void *data)
+{
+ struct s5m87xx_dev *s5m87xx = data;
+ u8 irq_reg[NUM_IRQ_REGS];
+ int ret;
+ int i;
+
+ ret = s5m_bulk_read(s5m87xx, S5M8763_REG_IRQ1,
+ NUM_IRQ_REGS, irq_reg);
+ if (ret < 0) {
+ dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ for (i = 0; i < NUM_IRQ_REGS; i++)
+ irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
+
+ for (i = 0; i < S5M8763_IRQ_NR; i++) {
+ if (irq_reg[s5m8763_irqs[i].reg - 1] & s5m8763_irqs[i].mask)
+ handle_nested_irq(s5m87xx->irq_base + i);
+ }
+
+ return IRQ_HANDLED;
+}
+
+int s5m_irq_resume(struct s5m87xx_dev *s5m87xx)
+{
+ if (s5m87xx->irq && s5m87xx->irq_base){
+ switch (s5m87xx->device_type) {
+ case S5M8763X:
+ s5m8763_irq_thread(s5m87xx->irq_base, s5m87xx);
+ break;
+ case S5M8767X:
+ s5m8767_irq_thread(s5m87xx->irq_base, s5m87xx);
+ break;
+ default:
+ break;
+
+ }
+ }
+ return 0;
+}
+
+int s5m_irq_init(struct s5m87xx_dev *s5m87xx)
+{
+ int i;
+ int cur_irq;
+ int ret = 0;
+ int type = s5m87xx->device_type;
+
+ if (!s5m87xx->irq) {
+ dev_warn(s5m87xx->dev,
+ "No interrupt specified, no interrupts\n");
+ s5m87xx->irq_base = 0;
+ return 0;
+ }
+
+ if (!s5m87xx->irq_base) {
+ dev_err(s5m87xx->dev,
+ "No interrupt base specified, no interrupts\n");
+ return 0;
+ }
+
+ mutex_init(&s5m87xx->irqlock);
+
+ switch (type) {
+ case S5M8763X:
+ for (i = 0; i < NUM_IRQ_REGS; i++) {
+ s5m87xx->irq_masks_cur[i] = 0xff;
+ s5m87xx->irq_masks_cache[i] = 0xff;
+ s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
+ 0xff);
+ }
+
+ s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM1, 0xff);
+ s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM2, 0xff);
+
+ for (i = 0; i < S5M8763_IRQ_NR; i++) {
+ cur_irq = i + s5m87xx->irq_base;
+ irq_set_chip_data(cur_irq, s5m87xx);
+ irq_set_chip_and_handler(cur_irq, &s5m8763_irq_chip,
+ handle_edge_irq);
+ irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+ set_irq_flags(cur_irq, IRQF_VALID);
+#else
+ irq_set_noprobe(cur_irq);
+#endif
+ }
+
+ ret = request_threaded_irq(s5m87xx->irq, NULL,
+ s5m8763_irq_thread,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "s5m87xx-irq", s5m87xx);
+ if (ret) {
+ dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+ s5m87xx->irq, ret);
+ return ret;
+ }
+ break;
+ case S5M8767X:
+ for (i = 0; i < NUM_IRQ_REGS - 1; i++) {
+ s5m87xx->irq_masks_cur[i] = 0xff;
+ s5m87xx->irq_masks_cache[i] = 0xff;
+ s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
+ 0xff);
+ }
+ for (i = 0; i < S5M8767_IRQ_NR; i++) {
+ cur_irq = i + s5m87xx->irq_base;
+ irq_set_chip_data(cur_irq, s5m87xx);
+ if (ret) {
+ dev_err(s5m87xx->dev,
+ "Failed to irq_set_chip_data %d: %d\n",
+ s5m87xx->irq, ret);
+ return ret;
+ }
+
+ irq_set_chip_and_handler(cur_irq, &s5m8767_irq_chip,
+ handle_edge_irq);
+ irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+ set_irq_flags(cur_irq, IRQF_VALID);
+#else
+ irq_set_noprobe(cur_irq);
+#endif
+ }
+
+ ret = request_threaded_irq(s5m87xx->irq, NULL,
+ s5m8767_irq_thread,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "s5m87xx-irq", s5m87xx);
+ if (ret) {
+ dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+ s5m87xx->irq, ret);
+ return ret;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (!s5m87xx->ono)
+ return 0;
+
+ switch (type) {
+ case S5M8763X:
+ ret = request_threaded_irq(s5m87xx->ono, NULL,
+ s5m8763_irq_thread,
+ IRQF_TRIGGER_FALLING |
+ IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT, "s5m87xx-ono",
+ s5m87xx);
+ break;
+ case S5M8767X:
+ ret = request_threaded_irq(s5m87xx->ono, NULL,
+ s5m8767_irq_thread,
+ IRQF_TRIGGER_FALLING |
+ IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT, "s5m87xx-ono", s5m87xx);
+ break;
+ default:
+ break;
+ }
+
+ if (ret)
+ dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+ s5m87xx->ono, ret);
+
+ return 0;
+}
+
+void s5m_irq_exit(struct s5m87xx_dev *s5m87xx)
+{
+ if (s5m87xx->ono)
+ free_irq(s5m87xx->ono, s5m87xx);
+
+ if (s5m87xx->irq)
+ free_irq(s5m87xx->irq, s5m87xx);
+}
return 0;
}
-static struct pci_device_id sm501_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(sm501_pci_tbl) = {
{ 0x126f, 0x0501, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0, },
};
--- /dev/null
+/*
+ * ST Microelectronics MFD: stmpe's i2c client specific driver
+ *
+ * Copyright (C) ST-Ericsson SA 2010
+ * Copyright (C) ST Microelectronics SA 2011
+ *
+ * License Terms: GNU General Public License, version 2
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include "stmpe.h"
+
+static int i2c_reg_read(struct stmpe *stmpe, u8 reg)
+{
+ struct i2c_client *i2c = stmpe->client;
+
+ return i2c_smbus_read_byte_data(i2c, reg);
+}
+
+static int i2c_reg_write(struct stmpe *stmpe, u8 reg, u8 val)
+{
+ struct i2c_client *i2c = stmpe->client;
+
+ return i2c_smbus_write_byte_data(i2c, reg, val);
+}
+
+static int i2c_block_read(struct stmpe *stmpe, u8 reg, u8 length, u8 *values)
+{
+ struct i2c_client *i2c = stmpe->client;
+
+ return i2c_smbus_read_i2c_block_data(i2c, reg, length, values);
+}
+
+static int i2c_block_write(struct stmpe *stmpe, u8 reg, u8 length,
+ const u8 *values)
+{
+ struct i2c_client *i2c = stmpe->client;
+
+ return i2c_smbus_write_i2c_block_data(i2c, reg, length, values);
+}
+
+static struct stmpe_client_info i2c_ci = {
+ .read_byte = i2c_reg_read,
+ .write_byte = i2c_reg_write,
+ .read_block = i2c_block_read,
+ .write_block = i2c_block_write,
+};
+
+static int __devinit
+stmpe_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
+{
+ i2c_ci.data = (void *)id;
+ i2c_ci.irq = i2c->irq;
+ i2c_ci.client = i2c;
+ i2c_ci.dev = &i2c->dev;
+
+ return stmpe_probe(&i2c_ci, id->driver_data);
+}
+
+static int __devexit stmpe_i2c_remove(struct i2c_client *i2c)
+{
+ struct stmpe *stmpe = dev_get_drvdata(&i2c->dev);
+
+ return stmpe_remove(stmpe);
+}
+
+static const struct i2c_device_id stmpe_i2c_id[] = {
+ { "stmpe610", STMPE610 },
+ { "stmpe801", STMPE801 },
+ { "stmpe811", STMPE811 },
+ { "stmpe1601", STMPE1601 },
+ { "stmpe2401", STMPE2401 },
+ { "stmpe2403", STMPE2403 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, stmpe_id);
+
+static struct i2c_driver stmpe_i2c_driver = {
+ .driver.name = "stmpe-i2c",
+ .driver.owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .driver.pm = &stmpe_dev_pm_ops,
+#endif
+ .probe = stmpe_i2c_probe,
+ .remove = __devexit_p(stmpe_i2c_remove),
+ .id_table = stmpe_i2c_id,
+};
+
+static int __init stmpe_init(void)
+{
+ return i2c_add_driver(&stmpe_i2c_driver);
+}
+subsys_initcall(stmpe_init);
+
+static void __exit stmpe_exit(void)
+{
+ i2c_del_driver(&stmpe_i2c_driver);
+}
+module_exit(stmpe_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("STMPE MFD I2C Interface Driver");
+MODULE_AUTHOR("Rabin Vincent <rabin.vincent@stericsson.com>");
--- /dev/null
+/*
+ * ST Microelectronics MFD: stmpe's spi client specific driver
+ *
+ * Copyright (C) ST Microelectronics SA 2011
+ *
+ * License Terms: GNU General Public License, version 2
+ * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ */
+
+#include <linux/spi/spi.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include "stmpe.h"
+
+#define READ_CMD (1 << 7)
+
+static int spi_reg_read(struct stmpe *stmpe, u8 reg)
+{
+ struct spi_device *spi = stmpe->client;
+ int status = spi_w8r16(spi, reg | READ_CMD);
+
+ return (status < 0) ? status : status >> 8;
+}
+
+static int spi_reg_write(struct stmpe *stmpe, u8 reg, u8 val)
+{
+ struct spi_device *spi = stmpe->client;
+ u16 cmd = (val << 8) | reg;
+
+ return spi_write(spi, (const u8 *)&cmd, 2);
+}
+
+static int spi_block_read(struct stmpe *stmpe, u8 reg, u8 length, u8 *values)
+{
+ int ret, i;
+
+ for (i = 0; i < length; i++) {
+ ret = spi_reg_read(stmpe, reg + i);
+ if (ret < 0)
+ return ret;
+ *(values + i) = ret;
+ }
+
+ return 0;
+}
+
+static int spi_block_write(struct stmpe *stmpe, u8 reg, u8 length,
+ const u8 *values)
+{
+ int ret = 0, i;
+
+ for (i = length; i > 0; i--, reg++) {
+ ret = spi_reg_write(stmpe, reg, *(values + i - 1));
+ if (ret < 0)
+ return ret;
+ }
+
+ return ret;
+}
+
+static void spi_init(struct stmpe *stmpe)
+{
+ struct spi_device *spi = stmpe->client;
+
+ spi->bits_per_word = 8;
+
+ /* This register is only present for stmpe811 */
+ if (stmpe->variant->id_val == 0x0811)
+ spi_reg_write(stmpe, STMPE811_REG_SPI_CFG, spi->mode);
+
+ if (spi_setup(spi) < 0)
+ dev_dbg(&spi->dev, "spi_setup failed\n");
+}
+
+static struct stmpe_client_info spi_ci = {
+ .read_byte = spi_reg_read,
+ .write_byte = spi_reg_write,
+ .read_block = spi_block_read,
+ .write_block = spi_block_write,
+ .init = spi_init,
+};
+
+static int __devinit
+stmpe_spi_probe(struct spi_device *spi)
+{
+ const struct spi_device_id *id = spi_get_device_id(spi);
+
+ /* don't exceed max specified rate - 1MHz - Limitation of STMPE */
+ if (spi->max_speed_hz > 1000000) {
+ dev_dbg(&spi->dev, "f(sample) %d KHz?\n",
+ (spi->max_speed_hz/1000));
+ return -EINVAL;
+ }
+
+ spi_ci.irq = spi->irq;
+ spi_ci.client = spi;
+ spi_ci.dev = &spi->dev;
+
+ return stmpe_probe(&spi_ci, id->driver_data);
+}
+
+static int __devexit stmpe_spi_remove(struct spi_device *spi)
+{
+ struct stmpe *stmpe = dev_get_drvdata(&spi->dev);
+
+ return stmpe_remove(stmpe);
+}
+
+static const struct spi_device_id stmpe_spi_id[] = {
+ { "stmpe610", STMPE610 },
+ { "stmpe801", STMPE801 },
+ { "stmpe811", STMPE811 },
+ { "stmpe1601", STMPE1601 },
+ { "stmpe2401", STMPE2401 },
+ { "stmpe2403", STMPE2403 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, stmpe_id);
+
+static struct spi_driver stmpe_spi_driver = {
+ .driver = {
+ .name = "stmpe-spi",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &stmpe_dev_pm_ops,
+#endif
+ },
+ .probe = stmpe_spi_probe,
+ .remove = __devexit_p(stmpe_spi_remove),
+ .id_table = stmpe_spi_id,
+};
+
+static int __init stmpe_init(void)
+{
+ return spi_register_driver(&stmpe_spi_driver);
+}
+subsys_initcall(stmpe_init);
+
+static void __exit stmpe_exit(void)
+{
+ spi_unregister_driver(&stmpe_spi_driver);
+}
+module_exit(stmpe_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("STMPE MFD SPI Interface Driver");
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
/*
+ * ST Microelectronics MFD: stmpe's driver
+ *
* Copyright (C) ST-Ericsson SA 2010
*
* License Terms: GNU General Public License, version 2
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
*/
+#include <linux/gpio.h>
+#include <linux/export.h>
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/pm.h>
#include <linux/slab.h>
-#include <linux/i2c.h>
#include <linux/mfd/core.h>
-#include <linux/mfd/stmpe.h>
#include "stmpe.h"
static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks)
{
int ret;
- ret = i2c_smbus_read_byte_data(stmpe->i2c, reg);
+ ret = stmpe->ci->read_byte(stmpe, reg);
if (ret < 0)
- dev_err(stmpe->dev, "failed to read reg %#x: %d\n",
- reg, ret);
+ dev_err(stmpe->dev, "failed to read reg %#x: %d\n", reg, ret);
dev_vdbg(stmpe->dev, "rd: reg %#x => data %#x\n", reg, ret);
dev_vdbg(stmpe->dev, "wr: reg %#x <= %#x\n", reg, val);
- ret = i2c_smbus_write_byte_data(stmpe->i2c, reg, val);
+ ret = stmpe->ci->write_byte(stmpe, reg, val);
if (ret < 0)
- dev_err(stmpe->dev, "failed to write reg %#x: %d\n",
- reg, ret);
+ dev_err(stmpe->dev, "failed to write reg %#x: %d\n", reg, ret);
return ret;
}
{
int ret;
- ret = i2c_smbus_read_i2c_block_data(stmpe->i2c, reg, length, values);
+ ret = stmpe->ci->read_block(stmpe, reg, length, values);
if (ret < 0)
- dev_err(stmpe->dev, "failed to read regs %#x: %d\n",
- reg, ret);
+ dev_err(stmpe->dev, "failed to read regs %#x: %d\n", reg, ret);
dev_vdbg(stmpe->dev, "rd: reg %#x (%d) => ret %#x\n", reg, length, ret);
stmpe_dump_bytes("stmpe rd: ", values, length);
dev_vdbg(stmpe->dev, "wr: regs %#x (%d)\n", reg, length);
stmpe_dump_bytes("stmpe wr: ", values, length);
- ret = i2c_smbus_write_i2c_block_data(stmpe->i2c, reg, length,
- values);
+ ret = stmpe->ci->write_block(stmpe, reg, length, values);
if (ret < 0)
- dev_err(stmpe->dev, "failed to write regs %#x: %d\n",
- reg, ret);
+ dev_err(stmpe->dev, "failed to write regs %#x: %d\n", reg, ret);
return ret;
}
u8 regaddr = stmpe->regs[STMPE_IDX_GPAFR_U_MSB];
int af_bits = variant->af_bits;
int numregs = DIV_ROUND_UP(stmpe->num_gpios * af_bits, 8);
- int afperreg = 8 / af_bits;
int mask = (1 << af_bits) - 1;
u8 regs[numregs];
- int af;
- int ret;
+ int af, afperreg, ret;
+
+ if (!variant->get_altfunc)
+ return 0;
+ afperreg = 8 / af_bits;
mutex_lock(&stmpe->lock);
ret = __stmpe_enable(stmpe, STMPE_BLOCK_GPIO);
};
/*
- * Touchscreen (STMPE811)
+ * STMPE801
+ */
+static const u8 stmpe801_regs[] = {
+ [STMPE_IDX_CHIP_ID] = STMPE801_REG_CHIP_ID,
+ [STMPE_IDX_ICR_LSB] = STMPE801_REG_SYS_CTRL,
+ [STMPE_IDX_GPMR_LSB] = STMPE801_REG_GPIO_MP_STA,
+ [STMPE_IDX_GPSR_LSB] = STMPE801_REG_GPIO_SET_PIN,
+ [STMPE_IDX_GPCR_LSB] = STMPE801_REG_GPIO_SET_PIN,
+ [STMPE_IDX_GPDR_LSB] = STMPE801_REG_GPIO_DIR,
+ [STMPE_IDX_IEGPIOR_LSB] = STMPE801_REG_GPIO_INT_EN,
+ [STMPE_IDX_ISGPIOR_MSB] = STMPE801_REG_GPIO_INT_STA,
+
+};
+
+static struct stmpe_variant_block stmpe801_blocks[] = {
+ {
+ .cell = &stmpe_gpio_cell,
+ .irq = 0,
+ .block = STMPE_BLOCK_GPIO,
+ },
+};
+
+static int stmpe801_enable(struct stmpe *stmpe, unsigned int blocks,
+ bool enable)
+{
+ if (blocks & STMPE_BLOCK_GPIO)
+ return 0;
+ else
+ return -EINVAL;
+}
+
+static struct stmpe_variant_info stmpe801 = {
+ .name = "stmpe801",
+ .id_val = STMPE801_ID,
+ .id_mask = 0xffff,
+ .num_gpios = 8,
+ .regs = stmpe801_regs,
+ .blocks = stmpe801_blocks,
+ .num_blocks = ARRAY_SIZE(stmpe801_blocks),
+ .num_irqs = STMPE801_NR_INTERNAL_IRQS,
+ .enable = stmpe801_enable,
+};
+
+/*
+ * Touchscreen (STMPE811 or STMPE610)
*/
static struct resource stmpe_ts_resources[] = {
};
/*
- * STMPE811
+ * STMPE811 or STMPE610
*/
static const u8 stmpe811_regs[] = {
.get_altfunc = stmpe811_get_altfunc,
};
+/* Similar to 811, except number of gpios */
+static struct stmpe_variant_info stmpe610 = {
+ .name = "stmpe610",
+ .id_val = 0x0811,
+ .id_mask = 0xffff,
+ .num_gpios = 6,
+ .af_bits = 1,
+ .regs = stmpe811_regs,
+ .blocks = stmpe811_blocks,
+ .num_blocks = ARRAY_SIZE(stmpe811_blocks),
+ .num_irqs = STMPE811_NR_INTERNAL_IRQS,
+ .enable = stmpe811_enable,
+ .get_altfunc = stmpe811_get_altfunc,
+};
+
/*
* STMPE1601
*/
};
static struct stmpe_variant_info *stmpe_variant_info[] = {
+ [STMPE610] = &stmpe610,
+ [STMPE801] = &stmpe801,
[STMPE811] = &stmpe811,
[STMPE1601] = &stmpe1601,
[STMPE2401] = &stmpe2401,
int ret;
int i;
+ if (variant->id_val == STMPE801_ID) {
+ handle_nested_irq(stmpe->irq_base);
+ return IRQ_HANDLED;
+ }
+
ret = stmpe_block_read(stmpe, israddr, num, isr);
if (ret < 0)
return IRQ_NONE;
static int __devinit stmpe_irq_init(struct stmpe *stmpe)
{
+ struct irq_chip *chip = NULL;
int num_irqs = stmpe->variant->num_irqs;
int base = stmpe->irq_base;
int irq;
+ if (stmpe->variant->id_val != STMPE801_ID)
+ chip = &stmpe_irq_chip;
+
for (irq = base; irq < base + num_irqs; irq++) {
irq_set_chip_data(irq, stmpe);
- irq_set_chip_and_handler(irq, &stmpe_irq_chip,
- handle_edge_irq);
+ irq_set_chip_and_handler(irq, chip, handle_edge_irq);
irq_set_nested_thread(irq, 1);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
unsigned int irq_trigger = stmpe->pdata->irq_trigger;
int autosleep_timeout = stmpe->pdata->autosleep_timeout;
struct stmpe_variant_info *variant = stmpe->variant;
- u8 icr = STMPE_ICR_LSB_GIM;
+ u8 icr;
unsigned int id;
u8 data[2];
int ret;
if (ret)
return ret;
- if (irq_trigger == IRQF_TRIGGER_FALLING ||
- irq_trigger == IRQF_TRIGGER_RISING)
- icr |= STMPE_ICR_LSB_EDGE;
+ if (id == STMPE801_ID)
+ icr = STMPE801_REG_SYS_CTRL_INT_EN;
+ else
+ icr = STMPE_ICR_LSB_GIM;
+
+ /* STMPE801 doesn't support Edge interrupts */
+ if (id != STMPE801_ID) {
+ if (irq_trigger == IRQF_TRIGGER_FALLING ||
+ irq_trigger == IRQF_TRIGGER_RISING)
+ icr |= STMPE_ICR_LSB_EDGE;
+ }
if (irq_trigger == IRQF_TRIGGER_RISING ||
- irq_trigger == IRQF_TRIGGER_HIGH)
- icr |= STMPE_ICR_LSB_HIGH;
+ irq_trigger == IRQF_TRIGGER_HIGH) {
+ if (id == STMPE801_ID)
+ icr |= STMPE801_REG_SYS_CTRL_INT_HI;
+ else
+ icr |= STMPE_ICR_LSB_HIGH;
+ }
- if (stmpe->pdata->irq_invert_polarity)
- icr ^= STMPE_ICR_LSB_HIGH;
+ if (stmpe->pdata->irq_invert_polarity) {
+ if (id == STMPE801_ID)
+ icr ^= STMPE801_REG_SYS_CTRL_INT_HI;
+ else
+ icr ^= STMPE_ICR_LSB_HIGH;
+ }
if (stmpe->pdata->autosleep) {
ret = stmpe_autosleep(stmpe, autosleep_timeout);
return ret;
}
-#ifdef CONFIG_PM
-static int stmpe_suspend(struct device *dev)
-{
- struct i2c_client *i2c = to_i2c_client(dev);
-
- if (device_may_wakeup(&i2c->dev))
- enable_irq_wake(i2c->irq);
-
- return 0;
-}
-
-static int stmpe_resume(struct device *dev)
-{
- struct i2c_client *i2c = to_i2c_client(dev);
-
- if (device_may_wakeup(&i2c->dev))
- disable_irq_wake(i2c->irq);
-
- return 0;
-}
-#endif
-
-static int __devinit stmpe_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+/* Called from client specific probe routines */
+int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum)
{
- struct stmpe_platform_data *pdata = i2c->dev.platform_data;
+ struct stmpe_platform_data *pdata = dev_get_platdata(ci->dev);
struct stmpe *stmpe;
int ret;
mutex_init(&stmpe->irq_lock);
mutex_init(&stmpe->lock);
- stmpe->dev = &i2c->dev;
- stmpe->i2c = i2c;
-
+ stmpe->dev = ci->dev;
+ stmpe->client = ci->client;
stmpe->pdata = pdata;
stmpe->irq_base = pdata->irq_base;
-
- stmpe->partnum = id->driver_data;
- stmpe->variant = stmpe_variant_info[stmpe->partnum];
+ stmpe->ci = ci;
+ stmpe->partnum = partnum;
+ stmpe->variant = stmpe_variant_info[partnum];
stmpe->regs = stmpe->variant->regs;
stmpe->num_gpios = stmpe->variant->num_gpios;
+ dev_set_drvdata(stmpe->dev, stmpe);
- i2c_set_clientdata(i2c, stmpe);
+ if (ci->init)
+ ci->init(stmpe);
+
+ if (pdata->irq_over_gpio) {
+ ret = gpio_request_one(pdata->irq_gpio, GPIOF_DIR_IN, "stmpe");
+ if (ret) {
+ dev_err(stmpe->dev, "failed to request IRQ GPIO: %d\n",
+ ret);
+ goto out_free;
+ }
+
+ stmpe->irq = gpio_to_irq(pdata->irq_gpio);
+ } else {
+ stmpe->irq = ci->irq;
+ }
ret = stmpe_chip_init(stmpe);
if (ret)
- goto out_free;
+ goto free_gpio;
ret = stmpe_irq_init(stmpe);
if (ret)
- goto out_free;
+ goto free_gpio;
- ret = request_threaded_irq(stmpe->i2c->irq, NULL, stmpe_irq,
- pdata->irq_trigger | IRQF_ONESHOT,
- "stmpe", stmpe);
+ ret = request_threaded_irq(stmpe->irq, NULL, stmpe_irq,
+ pdata->irq_trigger | IRQF_ONESHOT, "stmpe", stmpe);
if (ret) {
dev_err(stmpe->dev, "failed to request IRQ: %d\n", ret);
goto out_removeirq;
out_removedevs:
mfd_remove_devices(stmpe->dev);
- free_irq(stmpe->i2c->irq, stmpe);
+ free_irq(stmpe->irq, stmpe);
out_removeirq:
stmpe_irq_remove(stmpe);
+free_gpio:
+ if (pdata->irq_over_gpio)
+ gpio_free(pdata->irq_gpio);
out_free:
kfree(stmpe);
return ret;
}
-static int __devexit stmpe_remove(struct i2c_client *client)
+int stmpe_remove(struct stmpe *stmpe)
{
- struct stmpe *stmpe = i2c_get_clientdata(client);
-
mfd_remove_devices(stmpe->dev);
- free_irq(stmpe->i2c->irq, stmpe);
+ free_irq(stmpe->irq, stmpe);
stmpe_irq_remove(stmpe);
+ if (stmpe->pdata->irq_over_gpio)
+ gpio_free(stmpe->pdata->irq_gpio);
+
kfree(stmpe);
return 0;
}
-static const struct i2c_device_id stmpe_id[] = {
- { "stmpe811", STMPE811 },
- { "stmpe1601", STMPE1601 },
- { "stmpe2401", STMPE2401 },
- { "stmpe2403", STMPE2403 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, stmpe_id);
-
#ifdef CONFIG_PM
-static const struct dev_pm_ops stmpe_dev_pm_ops = {
- .suspend = stmpe_suspend,
- .resume = stmpe_resume,
-};
-#endif
+static int stmpe_suspend(struct device *dev)
+{
+ struct stmpe *stmpe = dev_get_drvdata(dev);
-static struct i2c_driver stmpe_driver = {
- .driver.name = "stmpe",
- .driver.owner = THIS_MODULE,
-#ifdef CONFIG_PM
- .driver.pm = &stmpe_dev_pm_ops,
-#endif
- .probe = stmpe_probe,
- .remove = __devexit_p(stmpe_remove),
- .id_table = stmpe_id,
-};
+ if (device_may_wakeup(dev))
+ enable_irq_wake(stmpe->irq);
-static int __init stmpe_init(void)
-{
- return i2c_add_driver(&stmpe_driver);
+ return 0;
}
-subsys_initcall(stmpe_init);
-static void __exit stmpe_exit(void)
+static int stmpe_resume(struct device *dev)
{
- i2c_del_driver(&stmpe_driver);
+ struct stmpe *stmpe = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(stmpe->irq);
+
+ return 0;
}
-module_exit(stmpe_exit);
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("STMPE MFD core driver");
-MODULE_AUTHOR("Rabin Vincent <rabin.vincent@stericsson.com>");
+const struct dev_pm_ops stmpe_dev_pm_ops = {
+ .suspend = stmpe_suspend,
+ .resume = stmpe_resume,
+};
+#endif
#ifndef __STMPE_H
#define __STMPE_H
+#include <linux/device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/stmpe.h>
+#include <linux/printk.h>
+#include <linux/types.h>
+
+extern const struct dev_pm_ops stmpe_dev_pm_ops;
+
#ifdef STMPE_DUMP_BYTES
static inline void stmpe_dump_bytes(const char *str, const void *buf,
size_t len)
int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout);
};
+/**
+ * struct stmpe_client_info - i2c or spi specific routines/info
+ * @data: client specific data
+ * @read_byte: read single byte
+ * @write_byte: write single byte
+ * @read_block: read block or multiple bytes
+ * @write_block: write block or multiple bytes
+ * @init: client init routine, called during probe
+ */
+struct stmpe_client_info {
+ void *data;
+ int irq;
+ void *client;
+ struct device *dev;
+ int (*read_byte)(struct stmpe *stmpe, u8 reg);
+ int (*write_byte)(struct stmpe *stmpe, u8 reg, u8 val);
+ int (*read_block)(struct stmpe *stmpe, u8 reg, u8 len, u8 *values);
+ int (*write_block)(struct stmpe *stmpe, u8 reg, u8 len,
+ const u8 *values);
+ void (*init)(struct stmpe *stmpe);
+};
+
+int stmpe_probe(struct stmpe_client_info *ci, int partnum);
+int stmpe_remove(struct stmpe *stmpe);
+
#define STMPE_ICR_LSB_HIGH (1 << 2)
#define STMPE_ICR_LSB_EDGE (1 << 1)
#define STMPE_ICR_LSB_GIM (1 << 0)
+/*
+ * STMPE801
+ */
+#define STMPE801_ID 0x0108
+#define STMPE801_NR_INTERNAL_IRQS 1
+
+#define STMPE801_REG_CHIP_ID 0x00
+#define STMPE801_REG_VERSION_ID 0x02
+#define STMPE801_REG_SYS_CTRL 0x04
+#define STMPE801_REG_GPIO_INT_EN 0x08
+#define STMPE801_REG_GPIO_INT_STA 0x09
+#define STMPE801_REG_GPIO_MP_STA 0x10
+#define STMPE801_REG_GPIO_SET_PIN 0x11
+#define STMPE801_REG_GPIO_DIR 0x12
+
+#define STMPE801_REG_SYS_CTRL_RESET (1 << 7)
+#define STMPE801_REG_SYS_CTRL_INT_EN (1 << 2)
+#define STMPE801_REG_SYS_CTRL_INT_HI (1 << 0)
+
/*
* STMPE811
*/
#define STMPE811_REG_CHIP_ID 0x00
#define STMPE811_REG_SYS_CTRL2 0x04
+#define STMPE811_REG_SPI_CFG 0x08
#define STMPE811_REG_INT_CTRL 0x09
#define STMPE811_REG_INT_EN 0x0A
#define STMPE811_REG_INT_STA 0x0B
/*--------------------------------------------------------------------------*/
-static int __init t7l66xb_init(void)
-{
- int retval = 0;
-
- retval = platform_driver_register(&t7l66xb_platform_driver);
- return retval;
-}
-
-static void __exit t7l66xb_exit(void)
-{
- platform_driver_unregister(&t7l66xb_platform_driver);
-}
-
-module_init(t7l66xb_init);
-module_exit(t7l66xb_exit);
+module_platform_driver(t7l66xb_platform_driver);
MODULE_DESCRIPTION("Toshiba T7L66XB core driver");
MODULE_LICENSE("GPL v2");
.resume = tc6387xb_resume,
};
-
-static int __init tc6387xb_init(void)
-{
- return platform_driver_register(&tc6387xb_platform_driver);
-}
-
-static void __exit tc6387xb_exit(void)
-{
- platform_driver_unregister(&tc6387xb_platform_driver);
-}
-
-module_init(tc6387xb_init);
-module_exit(tc6387xb_exit);
+module_platform_driver(tc6387xb_platform_driver);
MODULE_DESCRIPTION("Toshiba TC6387XB core driver");
MODULE_LICENSE("GPL v2");
}
};
-static int __init ti_ssp_init(void)
-{
- return platform_driver_register(&ti_ssp_driver);
-}
-module_init(ti_ssp_init);
-
-static void __exit ti_ssp_exit(void)
-{
- platform_driver_unregister(&ti_ssp_driver);
-}
-module_exit(ti_ssp_exit);
+module_platform_driver(ti_ssp_driver);
MODULE_DESCRIPTION("Sequencer Serial Port (SSP) Driver");
MODULE_AUTHOR("Cyril Chemparathy");
kfree(priv);
}
-static struct pci_device_id timberdale_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(timberdale_pci_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) },
{ 0 }
};
int tps65910_irq_exit(struct tps65910 *tps65910)
{
- free_irq(tps65910->chip_irq, tps65910);
+ if (tps65910->chip_irq)
+ free_irq(tps65910->chip_irq, tps65910);
return 0;
}
tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
- ret = tps65910_irq_init(tps65910, init_data->irq, init_data);
- if (ret < 0)
- goto err;
+ tps65910_irq_init(tps65910, init_data->irq, init_data);
kfree(init_data);
return ret;
err:
- mfd_remove_devices(tps65910->dev);
kfree(tps65910);
kfree(init_data);
return ret;
{
struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
- mfd_remove_devices(tps65910->dev);
tps65910_irq_exit(tps65910);
+ mfd_remove_devices(tps65910->dev);
kfree(tps65910);
return 0;
static struct spi_driver tps65912_spi_driver = {
.driver = {
.name = "tps65912",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = tps65912_spi_probe,
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/irqdomain.h>
#include <linux/regulator/machine.h>
#define TWL_MODULE_LAST TWL4030_MODULE_LAST
+#define TWL4030_NR_IRQS 8
+#define TWL6030_NR_IRQS 20
+
/* Base Address defns for twl4030_map[] */
/* subchip/slave 0 - USB ID */
static struct twl_client twl_modules[TWL_NUM_SLAVES];
+static struct irq_domain domain;
/* mapping the module id to slave id and base address */
struct twl_mapping {
int status;
unsigned i;
struct twl4030_platform_data *pdata = client->dev.platform_data;
+ struct device_node *node = client->dev.of_node;
u8 temp;
int ret = 0;
+ int nr_irqs = TWL4030_NR_IRQS;
+
+ if ((id->driver_data) & TWL6030_CLASS)
+ nr_irqs = TWL6030_NR_IRQS;
+
+ if (node && !pdata) {
+ /*
+ * XXX: Temporary pdata until the information is correctly
+ * retrieved by every TWL modules from DT.
+ */
+ pdata = devm_kzalloc(&client->dev,
+ sizeof(struct twl4030_platform_data),
+ GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
if (!pdata) {
dev_dbg(&client->dev, "no platform data?\n");
return -EINVAL;
}
+ status = irq_alloc_descs(-1, pdata->irq_base, nr_irqs, 0);
+ if (IS_ERR_VALUE(status)) {
+ dev_err(&client->dev, "Fail to allocate IRQ descs\n");
+ return status;
+ }
+
+ pdata->irq_base = status;
+ pdata->irq_end = pdata->irq_base + nr_irqs;
+
+ domain.irq_base = pdata->irq_base;
+ domain.nr_irq = nr_irqs;
+#ifdef CONFIG_OF_IRQ
+ domain.of_node = of_node_get(node);
+ domain.ops = &irq_domain_simple_ops;
+#endif
+ irq_domain_add(&domain);
+
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
dev_dbg(&client->dev, "can't talk I2C?\n");
return -EIO;
twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
}
- status = add_children(pdata, id->driver_data);
+#ifdef CONFIG_OF_DEVICE
+ if (node)
+ status = of_platform_populate(node, NULL, NULL, &client->dev);
+ else
+#endif
+ status = add_children(pdata, id->driver_data);
+
fail:
if (status < 0)
twl_remove(client);
},
};
-static int __devinit twl4030_audio_init(void)
-{
- return platform_driver_register(&twl4030_audio_driver);
-}
-module_init(twl4030_audio_init);
-
-static void __devexit twl4030_audio_exit(void)
-{
- platform_driver_unregister(&twl4030_audio_driver);
-}
-module_exit(twl4030_audio_exit);
+module_platform_driver(twl4030_audio_driver);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_LICENSE("GPL");
u8 bytes[4];
} imr;
- /* byte[0] gets overwriten as we write ... */
+ /* byte[0] gets overwritten as we write ... */
imr.word = cpu_to_le32(agent->imr << 8);
agent->imr_change_pending = false;
irq_set_chip_data(irq, agent);
irq_set_chip_and_handler(irq, &twl4030_sih_irq_chip,
handle_edge_irq);
+ irq_set_nested_thread(irq, 1);
activate_irq(irq);
}
},
};
-static int __init twl4030_madc_init(void)
-{
- return platform_driver_register(&twl4030_madc_driver);
-}
-
-module_init(twl4030_madc_init);
-
-static void __exit twl4030_madc_exit(void)
-{
- platform_driver_unregister(&twl4030_madc_driver);
-}
-
-module_exit(twl4030_madc_exit);
+module_platform_driver(twl4030_madc_driver);
MODULE_DESCRIPTION("TWL4030 ADC driver");
MODULE_LICENSE("GPL");
static u8 twl4030_start_script_address = 0x2b;
#define PWR_P1_SW_EVENTS 0x10
-#define PWR_DEVOFF (1<<0)
+#define PWR_DEVOFF (1 << 0)
+#define SEQ_OFFSYNC (1 << 0)
#define PHY_TO_OFF_PM_MASTER(p) (p - 0x36)
#define PHY_TO_OFF_PM_RECEIVER(p) (p - 0x5b)
return err;
}
+/*
+ * In master mode, start the power off sequence.
+ * After a successful execution, TWL shuts down the power to the SoC
+ * and all peripherals connected to it.
+ */
+void twl4030_power_off(void)
+{
+ int err;
+
+ err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, PWR_DEVOFF,
+ TWL4030_PM_MASTER_P1_SW_EVENTS);
+ if (err)
+ pr_err("TWL4030 Unable to power off\n");
+}
+
void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
{
int err = 0;
int i;
struct twl4030_resconfig *resconfig;
- u8 address = twl4030_start_script_address;
+ u8 val, address = twl4030_start_script_address;
err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
TWL4030_PM_MASTER_KEY_CFG1,
}
}
+ /* Board has to be wired properly to use this feature */
+ if (twl4030_scripts->use_poweroff && !pm_power_off) {
+ /* Default for SEQ_OFFSYNC is set, lets ensure this */
+ err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &val,
+ TWL4030_PM_MASTER_CFG_P123_TRANSITION);
+ if (err) {
+ pr_warning("TWL4030 Unable to read registers\n");
+
+ } else if (!(val & SEQ_OFFSYNC)) {
+ val |= SEQ_OFFSYNC;
+ err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, val,
+ TWL4030_PM_MASTER_CFG_P123_TRANSITION);
+ if (err) {
+ pr_err("TWL4030 Unable to setup SEQ_OFFSYNC\n");
+ goto relock;
+ }
+ }
+
+ pm_power_off = twl4030_power_off;
+ }
+
+relock:
err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
TWL4030_PM_MASTER_PROTECT_KEY);
if (err)
twl6040->audpwron = -EINVAL;
if (gpio_is_valid(twl6040->audpwron)) {
- ret = gpio_request(twl6040->audpwron, "audpwron");
+ ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW,
+ "audpwron");
if (ret)
goto gpio1_err;
-
- ret = gpio_direction_output(twl6040->audpwron, 0);
- if (ret)
- goto gpio2_err;
}
/* codec interrupt */
},
};
-static int __devinit twl6040_init(void)
-{
- return platform_driver_register(&twl6040_driver);
-}
-module_init(twl6040_init);
-
-static void __devexit twl6040_exit(void)
-{
- platform_driver_unregister(&twl6040_driver);
-}
-
-module_exit(twl6040_exit);
+module_platform_driver(twl6040_driver);
MODULE_DESCRIPTION("TWL6040 MFD");
MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
static LIST_HEAD(ucb1x00_drivers);
static LIST_HEAD(ucb1x00_devices);
+static struct mcp_device_id ucb1x00_id[] = {
+ { "ucb1x00", 0 }, /* auto-detection */
+ { "ucb1200", UCB_ID_1200 },
+ { "ucb1300", UCB_ID_1300 },
+ { "tc35143", UCB_ID_TC35143 },
+ { }
+};
+MODULE_DEVICE_TABLE(mcp, ucb1x00_id);
+
/**
* ucb1x00_io_set_dir - set IO direction
* @ucb: UCB1x00 structure describing chip
static int ucb1x00_probe(struct mcp *mcp)
{
+ const struct mcp_device_id *mid;
struct ucb1x00 *ucb;
struct ucb1x00_driver *drv;
+ struct ucb1x00_plat_data *pdata;
unsigned int id;
int ret = -ENODEV;
int temp;
mcp_enable(mcp);
id = mcp_reg_read(mcp, UCB_ID);
+ mid = mcp_get_device_id(mcp);
- if (id != UCB_ID_1200 && id != UCB_ID_1300 && id != UCB_ID_TC35143) {
- printk(KERN_WARNING "UCB1x00 ID not found: %04x\n", id);
+ if (mid && mid->driver_data) {
+ if (id != mid->driver_data) {
+ printk(KERN_WARNING "%s wrong ID %04x found: %04x\n",
+ mid->name, (unsigned int) mid->driver_data, id);
+ goto err_disable;
+ }
+ } else {
+ mid = &ucb1x00_id[1];
+ while (mid->driver_data) {
+ if (id == mid->driver_data)
+ break;
+ mid++;
+ }
+ printk(KERN_WARNING "%s ID not found: %04x\n",
+ ucb1x00_id[0].name, id);
goto err_disable;
}
if (!ucb)
goto err_disable;
-
+ pdata = mcp->attached_device.platform_data;
ucb->dev.class = &ucb1x00_class;
ucb->dev.parent = &mcp->attached_device;
- dev_set_name(&ucb->dev, "ucb1x00");
+ dev_set_name(&ucb->dev, mid->name);
spin_lock_init(&ucb->lock);
spin_lock_init(&ucb->io_lock);
sema_init(&ucb->adc_sem, 1);
- ucb->id = id;
+ ucb->id = mid;
ucb->mcp = mcp;
ucb->irq = ucb1x00_detect_irq(ucb);
if (ucb->irq == NO_IRQ) {
- printk(KERN_ERR "UCB1x00: IRQ probe failed\n");
+ printk(KERN_ERR "%s: IRQ probe failed\n", mid->name);
ret = -ENODEV;
goto err_free;
}
ucb->gpio.base = -1;
- if (mcp->gpio_base != 0) {
+ if (pdata && (pdata->gpio_base >= 0)) {
ucb->gpio.label = dev_name(&ucb->dev);
- ucb->gpio.base = mcp->gpio_base;
+ ucb->gpio.base = pdata->gpio_base;
ucb->gpio.ngpio = 10;
ucb->gpio.set = ucb1x00_gpio_set;
ucb->gpio.get = ucb1x00_gpio_get;
dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
- "UCB1x00", ucb);
+ mid->name, ucb);
if (ret) {
- printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
- ucb->irq, ret);
+ printk(KERN_ERR "%s: unable to grab irq%d: %d\n",
+ mid->name, ucb->irq, ret);
goto err_gpio;
}
.remove = ucb1x00_remove,
.suspend = ucb1x00_suspend,
.resume = ucb1x00_resume,
+ .id_table = ucb1x00_id,
};
static int __init ucb1x00_init(void)
ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
idev->name = "Touchscreen panel";
- idev->id.product = ts->ucb->id;
+ idev->id.product = ts->ucb->id->driver_data;
idev->open = ucb1x00_ts_open;
idev->close = ucb1x00_ts_close;
pci_disable_device(pdev);
}
-static struct pci_device_id vx855_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(vx855_pci_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) },
{ 0, }
};
dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
buf[i], reg + i, reg + i);
ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
+ if (ret != 0)
+ return ret;
}
return 0;
err_regmap:
mfd_remove_devices(wm831x->dev);
regmap_exit(wm831x->regmap);
- kfree(wm831x);
return ret;
}
free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
wm831x_irq_exit(wm831x);
regmap_exit(wm831x->regmap);
- kfree(wm831x);
}
int wm831x_device_suspend(struct wm831x *wm831x)
struct wm831x *wm831x;
int ret;
- wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+ wm831x = devm_kzalloc(&i2c->dev, sizeof(struct wm831x), GFP_KERNEL);
if (wm831x == NULL)
return -ENOMEM;
ret = PTR_ERR(wm831x->regmap);
dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
ret);
- kfree(wm831x);
return ret;
}
return WM831X_INTERRUPT_STATUS_1 - 1 + irq_data->reg;
}
-static inline int irq_data_to_mask_reg(struct wm831x_irq_data *irq_data)
-{
- return WM831X_INTERRUPT_STATUS_1_MASK - 1 + irq_data->reg;
-}
-
static inline struct wm831x_irq_data *irq_to_wm831x_irq(struct wm831x *wm831x,
int irq)
{
handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHPD);
if (primary & WM831X_TCHDATA_INT)
handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHDATA);
- if (primary & (WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT))
- goto out;
+ primary &= ~(WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT);
for (i = 0; i < ARRAY_SIZE(wm831x_irqs); i++) {
int offset = wm831x_irqs[i].reg - 1;
type = (enum wm831x_parent)id->driver_data;
- wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+ wm831x = devm_kzalloc(&spi->dev, sizeof(struct wm831x), GFP_KERNEL);
if (wm831x == NULL)
return -ENOMEM;
ret = PTR_ERR(wm831x->regmap);
dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
ret);
- kfree(wm831x);
return ret;
}
static struct spi_driver wm831x_spi_driver = {
.driver = {
.name = "wm831x",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
u16 id1, id2, mask_rev;
u16 cust_id, mode, chip_rev;
+ dev_set_drvdata(wm8350->dev, wm8350);
+
/* get WM8350 revision and config mode */
ret = wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
if (ret != 0) {
struct wm8350 *wm8350;
int ret = 0;
- wm8350 = kzalloc(sizeof(struct wm8350), GFP_KERNEL);
+ wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
if (wm8350 == NULL)
return -ENOMEM;
return ret;
err:
- kfree(wm8350);
return ret;
}
struct wm8350 *wm8350 = i2c_get_clientdata(i2c);
wm8350_device_exit(wm8350);
- kfree(wm8350);
return 0;
}
struct wm8400 *wm8400;
int ret;
- wm8400 = kzalloc(sizeof(struct wm8400), GFP_KERNEL);
+ wm8400 = devm_kzalloc(&i2c->dev, sizeof(struct wm8400), GFP_KERNEL);
if (wm8400 == NULL) {
ret = -ENOMEM;
goto err;
wm8400->regmap = regmap_init_i2c(i2c, &wm8400_regmap_config);
if (IS_ERR(wm8400->regmap)) {
ret = PTR_ERR(wm8400->regmap);
- goto struct_err;
+ goto err;
}
wm8400->dev = &i2c->dev;
map_err:
regmap_exit(wm8400->regmap);
-struct_err:
- kfree(wm8400);
err:
return ret;
}
wm8400_release(wm8400);
regmap_exit(wm8400->regmap);
- kfree(wm8400);
return 0;
}
stereo and mono audio, video, microphone and UART data to use
a common connector port.
+config MAX8997_MUIC
+ tristate "MAX8997 MUIC Support"
+ depends on MFD_MAX8997
+ help
+ If you say yes here you get support for the MUIC device of
+ Maxim MAX8997 PMIC.
+ The MAX8997 MUIC is a USB port accessory detector and switch.
+
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
obj-y += carma/
obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/
+obj-$(CONFIG_MAX8997_MUIC) += max8997-muic.o
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/pwm.h>
-#include <linux/mfd/ab8500.h>
#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
#include <linux/module.h>
/*
--- /dev/null
+/*
+ * max8997-muic.c - MAX8997 muic driver for the Maxim 8997
+ *
+ * Copyright (C) 2011 Samsung Electrnoics
+ * Donggeun Kim <dg77.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/kobject.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+/* MAX8997-MUIC STATUS1 register */
+#define STATUS1_ADC_SHIFT 0
+#define STATUS1_ADCLOW_SHIFT 5
+#define STATUS1_ADCERR_SHIFT 6
+#define STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT)
+#define STATUS1_ADCLOW_MASK (0x1 << STATUS1_ADCLOW_SHIFT)
+#define STATUS1_ADCERR_MASK (0x1 << STATUS1_ADCERR_SHIFT)
+
+/* MAX8997-MUIC STATUS2 register */
+#define STATUS2_CHGTYP_SHIFT 0
+#define STATUS2_CHGDETRUN_SHIFT 3
+#define STATUS2_DCDTMR_SHIFT 4
+#define STATUS2_DBCHG_SHIFT 5
+#define STATUS2_VBVOLT_SHIFT 6
+#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT)
+#define STATUS2_CHGDETRUN_MASK (0x1 << STATUS2_CHGDETRUN_SHIFT)
+#define STATUS2_DCDTMR_MASK (0x1 << STATUS2_DCDTMR_SHIFT)
+#define STATUS2_DBCHG_MASK (0x1 << STATUS2_DBCHG_SHIFT)
+#define STATUS2_VBVOLT_MASK (0x1 << STATUS2_VBVOLT_SHIFT)
+
+/* MAX8997-MUIC STATUS3 register */
+#define STATUS3_OVP_SHIFT 2
+#define STATUS3_OVP_MASK (0x1 << STATUS3_OVP_SHIFT)
+
+/* MAX8997-MUIC CONTROL1 register */
+#define COMN1SW_SHIFT 0
+#define COMP2SW_SHIFT 3
+#define COMN1SW_MASK (0x7 << COMN1SW_SHIFT)
+#define COMP2SW_MASK (0x7 << COMP2SW_SHIFT)
+#define SW_MASK (COMP2SW_MASK | COMN1SW_MASK)
+
+#define MAX8997_SW_USB ((1 << COMP2SW_SHIFT) | (1 << COMN1SW_SHIFT))
+#define MAX8997_SW_AUDIO ((2 << COMP2SW_SHIFT) | (2 << COMN1SW_SHIFT))
+#define MAX8997_SW_UART ((3 << COMP2SW_SHIFT) | (3 << COMN1SW_SHIFT))
+#define MAX8997_SW_OPEN ((0 << COMP2SW_SHIFT) | (0 << COMN1SW_SHIFT))
+
+#define MAX8997_ADC_GROUND 0x00
+#define MAX8997_ADC_MHL 0x01
+#define MAX8997_ADC_JIG_USB_1 0x18
+#define MAX8997_ADC_JIG_USB_2 0x19
+#define MAX8997_ADC_DESKDOCK 0x1a
+#define MAX8997_ADC_JIG_UART 0x1c
+#define MAX8997_ADC_CARDOCK 0x1d
+#define MAX8997_ADC_OPEN 0x1f
+
+struct max8997_muic_irq {
+ unsigned int irq;
+ const char *name;
+};
+
+static struct max8997_muic_irq muic_irqs[] = {
+ { MAX8997_MUICIRQ_ADCError, "muic-ADC_error" },
+ { MAX8997_MUICIRQ_ADCLow, "muic-ADC_low" },
+ { MAX8997_MUICIRQ_ADC, "muic-ADC" },
+ { MAX8997_MUICIRQ_VBVolt, "muic-VB_voltage" },
+ { MAX8997_MUICIRQ_DBChg, "muic-DB_charger" },
+ { MAX8997_MUICIRQ_DCDTmr, "muic-DCD_timer" },
+ { MAX8997_MUICIRQ_ChgDetRun, "muic-CDR_status" },
+ { MAX8997_MUICIRQ_ChgTyp, "muic-charger_type" },
+ { MAX8997_MUICIRQ_OVP, "muic-over_voltage" },
+};
+
+struct max8997_muic_info {
+ struct device *dev;
+ struct max8997_dev *iodev;
+ struct i2c_client *muic;
+ struct max8997_muic_platform_data *muic_pdata;
+
+ int irq;
+ struct work_struct irq_work;
+
+ enum max8997_muic_charger_type pre_charger_type;
+ int pre_adc;
+
+ struct mutex mutex;
+};
+
+static int max8997_muic_handle_usb(struct max8997_muic_info *info,
+ enum max8997_muic_usb_type usb_type, bool attached)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+ int ret = 0;
+
+ if (usb_type == MAX8997_USB_HOST) {
+ /* switch to USB */
+ ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+ attached ? MAX8997_SW_USB : MAX8997_SW_OPEN,
+ SW_MASK);
+ if (ret) {
+ dev_err(info->dev, "failed to update muic register\n");
+ goto out;
+ }
+ }
+
+ if (mdata->usb_callback)
+ mdata->usb_callback(usb_type, attached);
+out:
+ return ret;
+}
+
+static void max8997_muic_handle_mhl(struct max8997_muic_info *info,
+ bool attached)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+
+ if (mdata->mhl_callback)
+ mdata->mhl_callback(attached);
+}
+
+static int max8997_muic_handle_dock(struct max8997_muic_info *info,
+ int adc, bool attached)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+ int ret = 0;
+
+ /* switch to AUDIO */
+ ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+ attached ? MAX8997_SW_AUDIO : MAX8997_SW_OPEN,
+ SW_MASK);
+ if (ret) {
+ dev_err(info->dev, "failed to update muic register\n");
+ goto out;
+ }
+
+ switch (adc) {
+ case MAX8997_ADC_DESKDOCK:
+ if (mdata->deskdock_callback)
+ mdata->deskdock_callback(attached);
+ break;
+ case MAX8997_ADC_CARDOCK:
+ if (mdata->cardock_callback)
+ mdata->cardock_callback(attached);
+ break;
+ default:
+ break;
+ }
+out:
+ return ret;
+}
+
+static int max8997_muic_handle_jig_uart(struct max8997_muic_info *info,
+ bool attached)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+ int ret = 0;
+
+ /* switch to UART */
+ ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+ attached ? MAX8997_SW_UART : MAX8997_SW_OPEN,
+ SW_MASK);
+ if (ret) {
+ dev_err(info->dev, "failed to update muic register\n");
+ goto out;
+ }
+
+ if (mdata->uart_callback)
+ mdata->uart_callback(attached);
+out:
+ return ret;
+}
+
+static int max8997_muic_handle_adc_detach(struct max8997_muic_info *info)
+{
+ int ret = 0;
+
+ switch (info->pre_adc) {
+ case MAX8997_ADC_GROUND:
+ ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, false);
+ break;
+ case MAX8997_ADC_MHL:
+ max8997_muic_handle_mhl(info, false);
+ break;
+ case MAX8997_ADC_JIG_USB_1:
+ case MAX8997_ADC_JIG_USB_2:
+ ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, false);
+ break;
+ case MAX8997_ADC_DESKDOCK:
+ case MAX8997_ADC_CARDOCK:
+ ret = max8997_muic_handle_dock(info, info->pre_adc, false);
+ break;
+ case MAX8997_ADC_JIG_UART:
+ ret = max8997_muic_handle_jig_uart(info, false);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static int max8997_muic_handle_adc(struct max8997_muic_info *info, int adc)
+{
+ int ret = 0;
+
+ switch (adc) {
+ case MAX8997_ADC_GROUND:
+ ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, true);
+ break;
+ case MAX8997_ADC_MHL:
+ max8997_muic_handle_mhl(info, true);
+ break;
+ case MAX8997_ADC_JIG_USB_1:
+ case MAX8997_ADC_JIG_USB_2:
+ ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, true);
+ break;
+ case MAX8997_ADC_DESKDOCK:
+ case MAX8997_ADC_CARDOCK:
+ ret = max8997_muic_handle_dock(info, adc, true);
+ break;
+ case MAX8997_ADC_JIG_UART:
+ ret = max8997_muic_handle_jig_uart(info, true);
+ break;
+ case MAX8997_ADC_OPEN:
+ ret = max8997_muic_handle_adc_detach(info);
+ break;
+ default:
+ break;
+ }
+
+ info->pre_adc = adc;
+
+ return ret;
+}
+
+static int max8997_muic_handle_charger_type(struct max8997_muic_info *info,
+ enum max8997_muic_charger_type charger_type)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+ u8 adc;
+ int ret;
+
+ ret = max8997_read_reg(info->muic, MAX8997_MUIC_REG_STATUS1, &adc);
+ if (ret) {
+ dev_err(info->dev, "failed to read muic register\n");
+ goto out;
+ }
+
+ switch (charger_type) {
+ case MAX8997_CHARGER_TYPE_NONE:
+ if (mdata->charger_callback)
+ mdata->charger_callback(false, charger_type);
+ if (info->pre_charger_type == MAX8997_CHARGER_TYPE_USB) {
+ max8997_muic_handle_usb(info,
+ MAX8997_USB_DEVICE, false);
+ }
+ break;
+ case MAX8997_CHARGER_TYPE_USB:
+ if ((adc & STATUS1_ADC_MASK) == MAX8997_ADC_OPEN) {
+ max8997_muic_handle_usb(info,
+ MAX8997_USB_DEVICE, true);
+ }
+ if (mdata->charger_callback)
+ mdata->charger_callback(true, charger_type);
+ break;
+ case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
+ case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
+ case MAX8997_CHARGER_TYPE_500MA:
+ case MAX8997_CHARGER_TYPE_1A:
+ if (mdata->charger_callback)
+ mdata->charger_callback(true, charger_type);
+ break;
+ default:
+ break;
+ }
+
+ info->pre_charger_type = charger_type;
+out:
+ return ret;
+}
+
+static void max8997_muic_irq_work(struct work_struct *work)
+{
+ struct max8997_muic_info *info = container_of(work,
+ struct max8997_muic_info, irq_work);
+ struct max8997_platform_data *pdata =
+ dev_get_platdata(info->iodev->dev);
+ u8 status[3];
+ u8 adc, chg_type;
+
+ int irq_type = info->irq - pdata->irq_base;
+ int ret;
+
+ mutex_lock(&info->mutex);
+
+ ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1,
+ 3, status);
+ if (ret) {
+ dev_err(info->dev, "failed to read muic register\n");
+ mutex_unlock(&info->mutex);
+ return;
+ }
+
+ dev_dbg(info->dev, "%s: STATUS1:0x%x, 2:0x%x\n", __func__,
+ status[0], status[1]);
+
+ switch (irq_type) {
+ case MAX8997_MUICIRQ_ADC:
+ adc = status[0] & STATUS1_ADC_MASK;
+ adc >>= STATUS1_ADC_SHIFT;
+
+ max8997_muic_handle_adc(info, adc);
+ break;
+ case MAX8997_MUICIRQ_ChgTyp:
+ chg_type = status[1] & STATUS2_CHGTYP_MASK;
+ chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+ max8997_muic_handle_charger_type(info, chg_type);
+ break;
+ default:
+ dev_info(info->dev, "misc interrupt: %s occurred\n",
+ muic_irqs[irq_type].name);
+ break;
+ }
+
+ mutex_unlock(&info->mutex);
+
+ return;
+}
+
+static irqreturn_t max8997_muic_irq_handler(int irq, void *data)
+{
+ struct max8997_muic_info *info = data;
+
+ dev_dbg(info->dev, "irq:%d\n", irq);
+ info->irq = irq;
+
+ schedule_work(&info->irq_work);
+
+ return IRQ_HANDLED;
+}
+
+static void max8997_muic_detect_dev(struct max8997_muic_info *info)
+{
+ int ret;
+ u8 status[2], adc, chg_type;
+
+ ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1,
+ 2, status);
+ if (ret) {
+ dev_err(info->dev, "failed to read muic register\n");
+ return;
+ }
+
+ dev_info(info->dev, "STATUS1:0x%x, STATUS2:0x%x\n",
+ status[0], status[1]);
+
+ adc = status[0] & STATUS1_ADC_MASK;
+ adc >>= STATUS1_ADC_SHIFT;
+
+ chg_type = status[1] & STATUS2_CHGTYP_MASK;
+ chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+ max8997_muic_handle_adc(info, adc);
+ max8997_muic_handle_charger_type(info, chg_type);
+}
+
+static void max8997_initialize_device(struct max8997_muic_info *info)
+{
+ struct max8997_muic_platform_data *mdata = info->muic_pdata;
+ int i;
+
+ for (i = 0; i < mdata->num_init_data; i++) {
+ max8997_write_reg(info->muic, mdata->init_data[i].addr,
+ mdata->init_data[i].data);
+ }
+}
+
+static int __devinit max8997_muic_probe(struct platform_device *pdev)
+{
+ struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct max8997_muic_info *info;
+ int ret, i;
+
+ info = kzalloc(sizeof(struct max8997_muic_info), GFP_KERNEL);
+ if (!info) {
+ dev_err(&pdev->dev, "failed to allocate memory\n");
+ ret = -ENOMEM;
+ goto err_kfree;
+ }
+
+ if (!pdata->muic_pdata) {
+ dev_err(&pdev->dev, "failed to get platform_data\n");
+ ret = -EINVAL;
+ goto err_pdata;
+ }
+ info->muic_pdata = pdata->muic_pdata;
+
+ info->dev = &pdev->dev;
+ info->iodev = iodev;
+ info->muic = iodev->muic;
+
+ platform_set_drvdata(pdev, info);
+ mutex_init(&info->mutex);
+
+ INIT_WORK(&info->irq_work, max8997_muic_irq_work);
+
+ for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
+ struct max8997_muic_irq *muic_irq = &muic_irqs[i];
+
+ ret = request_threaded_irq(pdata->irq_base + muic_irq->irq,
+ NULL, max8997_muic_irq_handler,
+ 0, muic_irq->name,
+ info);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "failed: irq request (IRQ: %d,"
+ " error :%d)\n",
+ muic_irq->irq, ret);
+
+ for (i = i - 1; i >= 0; i--)
+ free_irq(muic_irq->irq, info);
+
+ goto err_irq;
+ }
+ }
+
+ /* Initialize registers according to platform data */
+ max8997_initialize_device(info);
+
+ /* Initial device detection */
+ max8997_muic_detect_dev(info);
+
+ return ret;
+
+err_irq:
+err_pdata:
+ kfree(info);
+err_kfree:
+ return ret;
+}
+
+static int __devexit max8997_muic_remove(struct platform_device *pdev)
+{
+ struct max8997_muic_info *info = platform_get_drvdata(pdev);
+ struct max8997_platform_data *pdata =
+ dev_get_platdata(info->iodev->dev);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
+ free_irq(pdata->irq_base + muic_irqs[i].irq, info);
+ cancel_work_sync(&info->irq_work);
+
+ kfree(info);
+
+ return 0;
+}
+
+static struct platform_driver max8997_muic_driver = {
+ .driver = {
+ .name = "max8997-muic",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8997_muic_probe,
+ .remove = __devexit_p(max8997_muic_remove),
+};
+
+static int __init max8997_muic_init(void)
+{
+ return platform_driver_register(&max8997_muic_driver);
+}
+module_init(max8997_muic_init);
+
+static void __exit max8997_muic_exit(void)
+{
+ platform_driver_unregister(&max8997_muic_driver);
+}
+module_exit(max8997_muic_exit);
+
+MODULE_DESCRIPTION("Maxim MAX8997 MUIC driver");
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_LICENSE("GPL");
obj-$(CONFIG_MMC) += core/
obj-$(CONFIG_MMC) += card/
-obj-$(CONFIG_MMC) += host/
-
+obj-$(subst m,y,$(CONFIG_MMC)) += host/
*/
unsigned int part_curr;
struct device_attribute force_ro;
+ struct device_attribute power_ro_lock;
+ int area_type;
};
static DEFINE_MUTEX(open_lock);
MMC_BLK_ABORT,
MMC_BLK_DATA_ERR,
MMC_BLK_ECC_ERR,
+ MMC_BLK_NOMEDIUM,
};
module_param(perdev_minors, int, 0444);
mutex_unlock(&open_lock);
}
+static ssize_t power_ro_lock_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int ret;
+ struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev));
+ struct mmc_card *card = md->queue.card;
+ int locked = 0;
+
+ if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PERM_WP_EN)
+ locked = 2;
+ else if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_EN)
+ locked = 1;
+
+ ret = snprintf(buf, PAGE_SIZE, "%d\n", locked);
+
+ return ret;
+}
+
+static ssize_t power_ro_lock_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ int ret;
+ struct mmc_blk_data *md, *part_md;
+ struct mmc_card *card;
+ unsigned long set;
+
+ if (kstrtoul(buf, 0, &set))
+ return -EINVAL;
+
+ if (set != 1)
+ return count;
+
+ md = mmc_blk_get(dev_to_disk(dev));
+ card = md->queue.card;
+
+ mmc_claim_host(card->host);
+
+ ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
+ card->ext_csd.boot_ro_lock |
+ EXT_CSD_BOOT_WP_B_PWR_WP_EN,
+ card->ext_csd.part_time);
+ if (ret)
+ pr_err("%s: Locking boot partition ro until next power on failed: %d\n", md->disk->disk_name, ret);
+ else
+ card->ext_csd.boot_ro_lock |= EXT_CSD_BOOT_WP_B_PWR_WP_EN;
+
+ mmc_release_host(card->host);
+
+ if (!ret) {
+ pr_info("%s: Locking boot partition ro until next power on\n",
+ md->disk->disk_name);
+ set_disk_ro(md->disk, 1);
+
+ list_for_each_entry(part_md, &md->part, part)
+ if (part_md->area_type == MMC_BLK_DATA_AREA_BOOT) {
+ pr_info("%s: Locking boot partition ro until next power on\n", part_md->disk->disk_name);
+ set_disk_ro(part_md->disk, 1);
+ }
+ }
+
+ mmc_blk_put(md);
+ return count;
+}
+
static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
goto idata_err;
}
+ if (!idata->buf_bytes)
+ return idata;
+
idata->buf = kzalloc(idata->buf_bytes, GFP_KERNEL);
if (!idata->buf) {
err = -ENOMEM;
if (IS_ERR(idata))
return PTR_ERR(idata);
- cmd.opcode = idata->ic.opcode;
- cmd.arg = idata->ic.arg;
- cmd.flags = idata->ic.flags;
-
- data.sg = &sg;
- data.sg_len = 1;
- data.blksz = idata->ic.blksz;
- data.blocks = idata->ic.blocks;
-
- sg_init_one(data.sg, idata->buf, idata->buf_bytes);
-
- if (idata->ic.write_flag)
- data.flags = MMC_DATA_WRITE;
- else
- data.flags = MMC_DATA_READ;
-
- mrq.cmd = &cmd;
- mrq.data = &data;
-
md = mmc_blk_get(bdev->bd_disk);
if (!md) {
err = -EINVAL;
goto cmd_done;
}
+ cmd.opcode = idata->ic.opcode;
+ cmd.arg = idata->ic.arg;
+ cmd.flags = idata->ic.flags;
+
+ if (idata->buf_bytes) {
+ data.sg = &sg;
+ data.sg_len = 1;
+ data.blksz = idata->ic.blksz;
+ data.blocks = idata->ic.blocks;
+
+ sg_init_one(data.sg, idata->buf, idata->buf_bytes);
+
+ if (idata->ic.write_flag)
+ data.flags = MMC_DATA_WRITE;
+ else
+ data.flags = MMC_DATA_READ;
+
+ /* data.flags must already be set before doing this. */
+ mmc_set_data_timeout(&data, card);
+
+ /* Allow overriding the timeout_ns for empirical tuning. */
+ if (idata->ic.data_timeout_ns)
+ data.timeout_ns = idata->ic.data_timeout_ns;
+
+ if ((cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
+ /*
+ * Pretend this is a data transfer and rely on the
+ * host driver to compute timeout. When all host
+ * drivers support cmd.cmd_timeout for R1B, this
+ * can be changed to:
+ *
+ * mrq.data = NULL;
+ * cmd.cmd_timeout = idata->ic.cmd_timeout_ms;
+ */
+ data.timeout_ns = idata->ic.cmd_timeout_ms * 1000000;
+ }
+
+ mrq.data = &data;
+ }
+
+ mrq.cmd = &cmd;
+
mmc_claim_host(card->host);
if (idata->ic.is_acmd) {
goto cmd_rel_host;
}
- /* data.flags must already be set before doing this. */
- mmc_set_data_timeout(&data, card);
- /* Allow overriding the timeout_ns for empirical tuning. */
- if (idata->ic.data_timeout_ns)
- data.timeout_ns = idata->ic.data_timeout_ns;
-
- if ((cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
- /*
- * Pretend this is a data transfer and rely on the host driver
- * to compute timeout. When all host drivers support
- * cmd.cmd_timeout for R1B, this can be changed to:
- *
- * mrq.data = NULL;
- * cmd.cmd_timeout = idata->ic.cmd_timeout_ms;
- */
- data.timeout_ns = idata->ic.cmd_timeout_ms * 1000000;
- }
-
mmc_wait_for_req(card->host, &mrq);
if (cmd.error) {
return err;
}
+#define ERR_NOMEDIUM 3
#define ERR_RETRY 2
#define ERR_ABORT 1
#define ERR_CONTINUE 0
u32 status, stop_status = 0;
int err, retry;
+ if (mmc_card_removed(card))
+ return ERR_NOMEDIUM;
+
/*
* Try to get card status which indicates both the card state
* and why there was no response. If the first attempt fails,
}
/* We couldn't get a response from the card. Give up. */
- if (err)
+ if (err) {
+ /* Check if the card is removed */
+ if (mmc_detect_card_removed(card->host))
+ return ERR_NOMEDIUM;
return ERR_ABORT;
+ }
/* Flag ECC errors */
if ((status & R1_CARD_ECC_FAILED) ||
return MMC_BLK_RETRY;
case ERR_ABORT:
return MMC_BLK_ABORT;
+ case ERR_NOMEDIUM:
+ return MMC_BLK_NOMEDIUM;
case ERR_CONTINUE:
break;
}
if (!ret)
goto start_new_req;
break;
+ case MMC_BLK_NOMEDIUM:
+ goto cmd_abort;
}
if (ret) {
cmd_abort:
spin_lock_irq(&md->lock);
+ if (mmc_card_removed(card))
+ req->cmd_flags |= REQ_QUIET;
while (ret)
ret = __blk_end_request(req, -EIO, blk_rq_cur_bytes(req));
spin_unlock_irq(&md->lock);
struct device *parent,
sector_t size,
bool default_ro,
- const char *subname)
+ const char *subname,
+ int area_type)
{
struct mmc_blk_data *md;
int devidx, ret;
if (!subname) {
md->name_idx = find_first_zero_bit(name_use, max_devices);
__set_bit(md->name_idx, name_use);
- }
- else
+ } else
md->name_idx = ((struct mmc_blk_data *)
dev_to_disk(parent)->private_data)->name_idx;
+ md->area_type = area_type;
+
/*
* Set the read-only status based on the supported commands
* and the write protect switch.
size = card->csd.capacity << (card->csd.read_blkbits - 9);
}
- md = mmc_blk_alloc_req(card, &card->dev, size, false, NULL);
+ md = mmc_blk_alloc_req(card, &card->dev, size, false, NULL,
+ MMC_BLK_DATA_AREA_MAIN);
return md;
}
unsigned int part_type,
sector_t size,
bool default_ro,
- const char *subname)
+ const char *subname,
+ int area_type)
{
char cap_str[10];
struct mmc_blk_data *part_md;
part_md = mmc_blk_alloc_req(card, disk_to_dev(md->disk), size, default_ro,
- subname);
+ subname, area_type);
if (IS_ERR(part_md))
return PTR_ERR(part_md);
part_md->part_type = part_type;
card->part[idx].part_cfg,
card->part[idx].size >> 9,
card->part[idx].force_ro,
- card->part[idx].name);
+ card->part[idx].name,
+ card->part[idx].area_type);
if (ret)
return ret;
}
static void mmc_blk_remove_req(struct mmc_blk_data *md)
{
+ struct mmc_card *card;
+
if (md) {
+ card = md->queue.card;
if (md->disk->flags & GENHD_FL_UP) {
device_remove_file(disk_to_dev(md->disk), &md->force_ro);
+ if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
+ card->ext_csd.boot_ro_lockable)
+ device_remove_file(disk_to_dev(md->disk),
+ &md->power_ro_lock);
/* Stop new requests from getting into the queue */
del_gendisk(md->disk);
static int mmc_add_disk(struct mmc_blk_data *md)
{
int ret;
+ struct mmc_card *card = md->queue.card;
add_disk(md->disk);
md->force_ro.show = force_ro_show;
md->force_ro.attr.mode = S_IRUGO | S_IWUSR;
ret = device_create_file(disk_to_dev(md->disk), &md->force_ro);
if (ret)
- del_gendisk(md->disk);
+ goto force_ro_fail;
+
+ if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
+ card->ext_csd.boot_ro_lockable) {
+ mode_t mode;
+
+ if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_DIS)
+ mode = S_IRUGO;
+ else
+ mode = S_IRUGO | S_IWUSR;
+
+ md->power_ro_lock.show = power_ro_lock_show;
+ md->power_ro_lock.store = power_ro_lock_store;
+ md->power_ro_lock.attr.mode = mode;
+ md->power_ro_lock.attr.name =
+ "ro_lock_until_next_power_on";
+ ret = device_create_file(disk_to_dev(md->disk),
+ &md->power_ro_lock);
+ if (ret)
+ goto power_ro_lock_fail;
+ }
+ return ret;
+
+power_ro_lock_fail:
+ device_remove_file(disk_to_dev(md->disk), &md->force_ro);
+force_ro_fail:
+ del_gendisk(md->disk);
return ret;
}
+#define CID_MANFID_SANDISK 0x2
+#define CID_MANFID_TOSHIBA 0x11
+#define CID_MANFID_MICRON 0x13
+
static const struct mmc_fixup blk_fixups[] =
{
- MMC_FIXUP("SEM02G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
- MMC_FIXUP("SEM04G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
- MMC_FIXUP("SEM08G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
- MMC_FIXUP("SEM16G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
- MMC_FIXUP("SEM32G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
+ MMC_FIXUP("SEM02G", CID_MANFID_SANDISK, 0x100, add_quirk,
+ MMC_QUIRK_INAND_CMD38),
+ MMC_FIXUP("SEM04G", CID_MANFID_SANDISK, 0x100, add_quirk,
+ MMC_QUIRK_INAND_CMD38),
+ MMC_FIXUP("SEM08G", CID_MANFID_SANDISK, 0x100, add_quirk,
+ MMC_QUIRK_INAND_CMD38),
+ MMC_FIXUP("SEM16G", CID_MANFID_SANDISK, 0x100, add_quirk,
+ MMC_QUIRK_INAND_CMD38),
+ MMC_FIXUP("SEM32G", CID_MANFID_SANDISK, 0x100, add_quirk,
+ MMC_QUIRK_INAND_CMD38),
/*
* Some MMC cards experience performance degradation with CMD23
*
* N.B. This doesn't affect SD cards.
*/
- MMC_FIXUP("MMC08G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
+ MMC_FIXUP("MMC08G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
- MMC_FIXUP("MMC16G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
+ MMC_FIXUP("MMC16G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
- MMC_FIXUP("MMC32G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
+ MMC_FIXUP("MMC32G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
/*
* Some Micron MMC cards needs longer data read timeout than
* indicated in CSD.
*/
- MMC_FIXUP(CID_NAME_ANY, 0x13, 0x200, add_quirk_mmc,
+ MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
MMC_QUIRK_LONG_READ_TIME),
END_FIXUP
t->max_segs = test->card->host->max_segs;
t->max_seg_sz = test->card->host->max_seg_size;
+ t->max_seg_sz -= t->max_seg_sz % 512;
t->max_tfr = t->max_sz;
if (t->max_tfr >> 9 > test->card->host->max_blk_count)
*/
static int mmc_prep_request(struct request_queue *q, struct request *req)
{
+ struct mmc_queue *mq = q->queuedata;
+
/*
* We only like normal block requests and discards.
*/
return BLKPREP_KILL;
}
+ if (mq && mmc_card_removed(mq->card))
+ return BLKPREP_KILL;
+
req->cmd_flags |= REQ_DONTPREP;
return BLKPREP_OK;
mmc.o mmc_ops.o sd.o sd_ops.o \
sdio.o sdio_ops.o sdio_bus.o \
sdio_cis.o sdio_io.o sdio_irq.o \
- quirks.o
+ quirks.o cd-gpio.o
mmc_core-$(CONFIG_DEBUG_FS) += debugfs.o
mmc_card_ddr_mode(card) ? "DDR " : "",
type);
} else {
- printk(KERN_INFO "%s: new %s%s%s card at address %04x\n",
+ pr_info("%s: new %s%s%s%s card at address %04x\n",
mmc_hostname(card->host),
- mmc_sd_card_uhs(card) ? "ultra high speed " :
+ mmc_card_uhs(card) ? "ultra high speed " :
(mmc_card_highspeed(card) ? "high speed " : ""),
+ (mmc_card_hs200(card) ? "HS200 " : ""),
mmc_card_ddr_mode(card) ? "DDR " : "",
type, card->rca);
}
--- /dev/null
+/*
+ * Generic GPIO card-detect helper
+ *
+ * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/mmc/host.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+struct mmc_cd_gpio {
+ unsigned int gpio;
+ char label[0];
+};
+
+static irqreturn_t mmc_cd_gpio_irqt(int irq, void *dev_id)
+{
+ /* Schedule a card detection after a debounce timeout */
+ mmc_detect_change(dev_id, msecs_to_jiffies(100));
+ return IRQ_HANDLED;
+}
+
+int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
+ unsigned int irq, unsigned long flags)
+{
+ size_t len = strlen(dev_name(host->parent)) + 4;
+ struct mmc_cd_gpio *cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
+ int ret;
+
+ if (!cd)
+ return -ENOMEM;
+
+ snprintf(cd->label, len, "%s cd", dev_name(host->parent));
+
+ ret = gpio_request_one(gpio, GPIOF_DIR_IN, cd->label);
+ if (ret < 0)
+ goto egpioreq;
+
+ ret = request_threaded_irq(irq, NULL, mmc_cd_gpio_irqt,
+ flags, cd->label, host);
+ if (ret < 0)
+ goto eirqreq;
+
+ cd->gpio = gpio;
+ host->hotplug.irq = irq;
+ host->hotplug.handler_priv = cd;
+
+ return 0;
+
+eirqreq:
+ gpio_free(gpio);
+egpioreq:
+ kfree(cd);
+ return ret;
+}
+EXPORT_SYMBOL(mmc_cd_gpio_request);
+
+void mmc_cd_gpio_free(struct mmc_host *host)
+{
+ struct mmc_cd_gpio *cd = host->hotplug.handler_priv;
+
+ free_irq(host->hotplug.irq, host);
+ gpio_free(cd->gpio);
+ kfree(cd);
+}
+EXPORT_SYMBOL(mmc_cd_gpio_free);
cmd->retries = 0;
}
- if (err && cmd->retries) {
+ if (err && cmd->retries && !mmc_card_removed(host->card)) {
/*
* Request starter must handle retries - see
* mmc_wait_for_req_done().
{
init_completion(&mrq->completion);
mrq->done = mmc_wait_done;
+ if (mmc_card_removed(host->card)) {
+ mrq->cmd->error = -ENOMEDIUM;
+ complete(&mrq->completion);
+ return;
+ }
mmc_start_request(host, mrq);
}
wait_for_completion(&mrq->completion);
cmd = mrq->cmd;
- if (!cmd->error || !cmd->retries)
+ if (!cmd->error || !cmd->retries ||
+ mmc_card_removed(host->card))
break;
pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
WARN_ON(host->removed);
spin_unlock_irqrestore(&host->lock, flags);
#endif
-
+ host->detect_change = 1;
mmc_schedule_delayed_work(&host->detect, delay);
}
return -EIO;
}
+int _mmc_detect_card_removed(struct mmc_host *host)
+{
+ int ret;
+
+ if ((host->caps & MMC_CAP_NONREMOVABLE) || !host->bus_ops->alive)
+ return 0;
+
+ if (!host->card || mmc_card_removed(host->card))
+ return 1;
+
+ ret = host->bus_ops->alive(host);
+ if (ret) {
+ mmc_card_set_removed(host->card);
+ pr_debug("%s: card remove detected\n", mmc_hostname(host));
+ }
+
+ return ret;
+}
+
+int mmc_detect_card_removed(struct mmc_host *host)
+{
+ struct mmc_card *card = host->card;
+
+ WARN_ON(!host->claimed);
+ /*
+ * The card will be considered unchanged unless we have been asked to
+ * detect a change or host requires polling to provide card detection.
+ */
+ if (card && !host->detect_change && !(host->caps & MMC_CAP_NEEDS_POLL))
+ return mmc_card_removed(card);
+
+ host->detect_change = 0;
+
+ return _mmc_detect_card_removed(host);
+}
+EXPORT_SYMBOL(mmc_detect_card_removed);
+
void mmc_rescan(struct work_struct *work)
{
static const unsigned freqs[] = { 400000, 300000, 200000, 100000 };
&& !(host->caps & MMC_CAP_NONREMOVABLE))
host->bus_ops->detect(host);
+ host->detect_change = 0;
+
/*
* Let mmc_bus_put() free the bus/bus_ops if we've found that
* the card is no longer present.
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
+ /* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
{
int err = -ENOSYS;
+ if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
+ return 0;
+
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead && host->bus_ops->awake)
{
int err = -ENOSYS;
+ if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
+ return 0;
+
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep)
int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
{
struct mmc_card *card = host->card;
+ unsigned int timeout;
int err = 0;
if (!(host->caps2 & MMC_CAP2_CACHE_CTRL) ||
(card->ext_csd.cache_size > 0)) {
enable = !!enable;
- if (card->ext_csd.cache_ctrl ^ enable)
+ if (card->ext_csd.cache_ctrl ^ enable) {
+ timeout = enable ? card->ext_csd.generic_cmd6_time : 0;
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_CACHE_CTRL, enable, 0);
- if (err)
- pr_err("%s: cache %s error %d\n",
- mmc_hostname(card->host),
- enable ? "on" : "off",
- err);
- else
- card->ext_csd.cache_ctrl = enable;
+ EXT_CSD_CACHE_CTRL, enable, timeout);
+ if (err)
+ pr_err("%s: cache %s error %d\n",
+ mmc_hostname(card->host),
+ enable ? "on" : "off",
+ err);
+ else
+ card->ext_csd.cache_ctrl = enable;
+ }
}
return err;
cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
- err = mmc_cache_ctrl(host, 0);
+ if (mmc_try_claim_host(host)) {
+ err = mmc_cache_ctrl(host, 0);
+ mmc_do_release_host(host);
+ } else {
+ err = -EBUSY;
+ }
+
if (err)
goto out;
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
* We simply "remove" the card in this case.
- * It will be redetected on resume.
+ * It will be redetected on resume. (Calling
+ * bus_ops->remove() with a claimed host can
+ * deadlock.)
*/
if (host->bus_ops->remove)
host->bus_ops->remove(host);
if (!host->bus_ops || host->bus_ops->suspend)
break;
- mmc_claim_host(host);
-
+ /* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
+ mmc_claim_host(host);
mmc_detach_bus(host);
mmc_power_off(host);
mmc_release_host(host);
int (*resume)(struct mmc_host *);
int (*power_save)(struct mmc_host *);
int (*power_restore)(struct mmc_host *);
+ int (*alive)(struct mmc_host *);
};
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
void mmc_start_host(struct mmc_host *host);
void mmc_stop_host(struct mmc_host *host);
+int _mmc_detect_card_removed(struct mmc_host *host);
+
int mmc_attach_mmc(struct mmc_host *host);
int mmc_attach_sd(struct mmc_host *host);
int mmc_attach_sdio(struct mmc_host *host);
const char *str;
seq_printf(s, "clock:\t\t%u Hz\n", ios->clock);
+ if (host->actual_clock)
+ seq_printf(s, "actual clock:\t%u Hz\n", host->actual_clock);
seq_printf(s, "vdd:\t\t%u ", ios->vdd);
if ((1 << ios->vdd) & MMC_VDD_165_195)
seq_printf(s, "(1.65 - 1.95 V)\n");
case MMC_TIMING_UHS_DDR50:
str = "sd uhs DDR50";
break;
+ case MMC_TIMING_MMC_HS200:
+ str = "mmc high-speed SDR200";
+ break;
default:
str = "invalid";
break;
static DEFINE_SPINLOCK(mmc_host_lock);
#ifdef CONFIG_MMC_CLKGATE
+static ssize_t clkgate_delay_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct mmc_host *host = cls_dev_to_mmc_host(dev);
+ return snprintf(buf, PAGE_SIZE, "%lu\n", host->clkgate_delay);
+}
+
+static ssize_t clkgate_delay_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct mmc_host *host = cls_dev_to_mmc_host(dev);
+ unsigned long flags, value;
+
+ if (kstrtoul(buf, 0, &value))
+ return -EINVAL;
+
+ spin_lock_irqsave(&host->clk_lock, flags);
+ host->clkgate_delay = value;
+ spin_unlock_irqrestore(&host->clk_lock, flags);
+ return count;
+}
/*
* Enabling clock gating will make the core call out to the host
static void mmc_host_clk_gate_work(struct work_struct *work)
{
struct mmc_host *host = container_of(work, struct mmc_host,
- clk_gate_work);
+ clk_gate_work.work);
mmc_host_clk_gate_delayed(host);
}
{
unsigned long flags;
+ /* cancel any clock gating work scheduled by mmc_host_clk_release() */
+ cancel_delayed_work_sync(&host->clk_gate_work);
mutex_lock(&host->clk_gate_mutex);
spin_lock_irqsave(&host->clk_lock, flags);
if (host->clk_gated) {
host->clk_requests--;
if (mmc_host_may_gate_card(host->card) &&
!host->clk_requests)
- queue_work(system_nrt_wq, &host->clk_gate_work);
+ queue_delayed_work(system_nrt_wq, &host->clk_gate_work,
+ msecs_to_jiffies(host->clkgate_delay));
spin_unlock_irqrestore(&host->clk_lock, flags);
}
host->clk_requests = 0;
/* Hold MCI clock for 8 cycles by default */
host->clk_delay = 8;
+ /*
+ * Default clock gating delay is 200ms.
+ * This value can be tuned by writing into sysfs entry.
+ */
+ host->clkgate_delay = 200;
host->clk_gated = false;
- INIT_WORK(&host->clk_gate_work, mmc_host_clk_gate_work);
+ INIT_DELAYED_WORK(&host->clk_gate_work, mmc_host_clk_gate_work);
spin_lock_init(&host->clk_lock);
mutex_init(&host->clk_gate_mutex);
}
* Wait for any outstanding gate and then make sure we're
* ungated before exiting.
*/
- if (cancel_work_sync(&host->clk_gate_work))
+ if (cancel_delayed_work_sync(&host->clk_gate_work))
mmc_host_clk_gate_delayed(host);
if (host->clk_gated)
mmc_host_clk_hold(host);
WARN_ON(host->clk_requests > 1);
}
+static inline void mmc_host_clk_sysfs_init(struct mmc_host *host)
+{
+ host->clkgate_delay_attr.show = clkgate_delay_show;
+ host->clkgate_delay_attr.store = clkgate_delay_store;
+ sysfs_attr_init(&host->clkgate_delay_attr.attr);
+ host->clkgate_delay_attr.attr.name = "clkgate_delay";
+ host->clkgate_delay_attr.attr.mode = S_IRUGO | S_IWUSR;
+ if (device_create_file(&host->class_dev, &host->clkgate_delay_attr))
+ pr_err("%s: Failed to create clkgate_delay sysfs entry\n",
+ mmc_hostname(host));
+}
#else
static inline void mmc_host_clk_init(struct mmc_host *host)
{
}
+static inline void mmc_host_clk_sysfs_init(struct mmc_host *host)
+{
+}
+
#endif
/**
#ifdef CONFIG_DEBUG_FS
mmc_add_host_debugfs(host);
#endif
+ mmc_host_clk_sysfs_init(host);
mmc_start_host(host);
register_pm_notifier(&host->pm_notify);
}
card->ext_csd.raw_card_type = ext_csd[EXT_CSD_CARD_TYPE];
switch (ext_csd[EXT_CSD_CARD_TYPE] & EXT_CSD_CARD_TYPE_MASK) {
+ case EXT_CSD_CARD_TYPE_SDR_ALL:
+ case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_8V:
+ case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_2V:
+ case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_52:
+ card->ext_csd.hs_max_dtr = 200000000;
+ card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_200;
+ break;
+ case EXT_CSD_CARD_TYPE_SDR_1_2V_ALL:
+ case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_8V:
+ case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_2V:
+ case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_52:
+ card->ext_csd.hs_max_dtr = 200000000;
+ card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_1_2V;
+ break;
+ case EXT_CSD_CARD_TYPE_SDR_1_8V_ALL:
+ case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_8V:
+ case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_2V:
+ case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_52:
+ card->ext_csd.hs_max_dtr = 200000000;
+ card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_1_8V;
+ break;
case EXT_CSD_CARD_TYPE_DDR_52 | EXT_CSD_CARD_TYPE_52 |
EXT_CSD_CARD_TYPE_26:
card->ext_csd.hs_max_dtr = 52000000;
part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17;
mmc_part_add(card, part_size,
EXT_CSD_PART_CONFIG_ACC_BOOT0 + idx,
- "boot%d", idx, true);
+ "boot%d", idx, true,
+ MMC_BLK_DATA_AREA_BOOT);
}
}
}
hc_wp_grp_sz);
mmc_part_add(card, part_size << 19,
EXT_CSD_PART_CONFIG_ACC_GP0 + idx,
- "gp%d", idx, false);
+ "gp%d", idx, false,
+ MMC_BLK_DATA_AREA_GP);
}
}
card->ext_csd.sec_trim_mult =
ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT];
card->ext_csd.trim_timeout = 300 *
ext_csd[EXT_CSD_TRIM_MULT];
+
+ /*
+ * Note that the call to mmc_part_add above defaults to read
+ * only. If this default assumption is changed, the call must
+ * take into account the value of boot_locked below.
+ */
+ card->ext_csd.boot_ro_lock = ext_csd[EXT_CSD_BOOT_WP];
+ card->ext_csd.boot_ro_lockable = true;
}
if (card->ext_csd.rev >= 5) {
return err;
}
+/*
+ * Selects the desired buswidth and switch to the HS200 mode
+ * if bus width set without error
+ */
+static int mmc_select_hs200(struct mmc_card *card)
+{
+ int idx, err = 0;
+ struct mmc_host *host;
+ static unsigned ext_csd_bits[] = {
+ EXT_CSD_BUS_WIDTH_4,
+ EXT_CSD_BUS_WIDTH_8,
+ };
+ static unsigned bus_widths[] = {
+ MMC_BUS_WIDTH_4,
+ MMC_BUS_WIDTH_8,
+ };
+
+ BUG_ON(!card);
+
+ host = card->host;
+
+ if (card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_2V &&
+ host->caps2 & MMC_CAP2_HS200_1_2V_SDR)
+ if (mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120, 0))
+ err = mmc_set_signal_voltage(host,
+ MMC_SIGNAL_VOLTAGE_180, 0);
+
+ /* If fails try again during next card power cycle */
+ if (err)
+ goto err;
+
+ idx = (host->caps & MMC_CAP_8_BIT_DATA) ? 1 : 0;
+
+ /*
+ * Unlike SD, MMC cards dont have a configuration register to notify
+ * supported bus width. So bus test command should be run to identify
+ * the supported bus width or compare the ext csd values of current
+ * bus width and ext csd values of 1 bit mode read earlier.
+ */
+ for (; idx >= 0; idx--) {
+
+ /*
+ * Host is capable of 8bit transfer, then switch
+ * the device to work in 8bit transfer mode. If the
+ * mmc switch command returns error then switch to
+ * 4bit transfer mode. On success set the corresponding
+ * bus width on the host.
+ */
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_BUS_WIDTH,
+ ext_csd_bits[idx],
+ card->ext_csd.generic_cmd6_time);
+ if (err)
+ continue;
+
+ mmc_set_bus_width(card->host, bus_widths[idx]);
+
+ if (!(host->caps & MMC_CAP_BUS_WIDTH_TEST))
+ err = mmc_compare_ext_csds(card, bus_widths[idx]);
+ else
+
projects / ~shefty / rdma-dev.git / commitdiff