Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  dmaengine: at_hdmac: fix buffer transfer size specification
  fsldma: fix issue of slow dma
  dmaengine i.MX SDMA: initialize on module_init
  dma : EG20T PCH: Fix miss-setting DMA descriptor
  intel_mid_dma: fix section mismatch warnings
  dmaengine: imx-sdma: fix bug in buffer descriptor initialization
  drivers/dma/ppc4xx: Use printf extension %pR for struct resource
  drivers/dma/ioat: Use the ccflag-y instead of EXTRA_CFLAGS
  drivers/dma/: Use the ccflag-y instead of EXTRA_CFLAGS
  dma: intel_mid_dma: fix double free on mid_setup_dma error path
  dma: imx-dma: fix imxdma_probe error path

diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index a8a84f4587f20d7437af9ce12932dbf8e92a4e1b..64b21f5cd740fc5dfa1d5f09b1a944ed1f661440 100644 (file)
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -1,8 +1,8 @@
 ifeq ($(CONFIG_DMADEVICES_DEBUG),y)
-       EXTRA_CFLAGS    += -DDEBUG
+       ccflags-y       += -DDEBUG
 endif
 ifeq ($(CONFIG_DMADEVICES_VDEBUG),y)
-       EXTRA_CFLAGS    += -DVERBOSE_DEBUG
+       ccflags-y       += -DVERBOSE_DEBUG
 endif
 
 obj-$(CONFIG_DMA_ENGINE) += dmaengine.o

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index a0f3e6a06e06532b3701ade73b110d823eec591f..ea0ee81cff53e266643140eb752ef3ba26289c6a 100644 (file)
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -722,7 +722,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
                        desc->lli.daddr = mem;
                        desc->lli.ctrla = ctrla
                                        | ATC_DST_WIDTH(mem_width)
-                                       | len >> mem_width;
+                                       | len >> reg_width;
                        desc->lli.ctrlb = ctrlb;
 
                        if (!first) {

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 286c3ac6bdcc236d020229ce0397ee9e78e07100..e5e172d21692d60a81fce6a9ed06e5807c57b370 100644 (file)
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -50,9 +50,11 @@ static void dma_init(struct fsldma_chan *chan)
                 * EIE - Error interrupt enable
                 * EOSIE - End of segments interrupt enable (basic mode)
                 * EOLNIE - End of links interrupt enable
+                * BWC - Bandwidth sharing among channels
                 */
-               DMA_OUT(chan, &chan->regs->mr, FSL_DMA_MR_EIE
-                               | FSL_DMA_MR_EOLNIE | FSL_DMA_MR_EOSIE, 32);
+               DMA_OUT(chan, &chan->regs->mr, FSL_DMA_MR_BWC
+                               | FSL_DMA_MR_EIE | FSL_DMA_MR_EOLNIE
+                               | FSL_DMA_MR_EOSIE, 32);
                break;
        case FSL_DMA_IP_83XX:
                /* Set the channel to below modes:

diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
index cb4d6ff5159766baf7dce594dca6fb57e3d28dd2..ba9f403c0fbe9127441e7b92bf70c59c71cbde28 100644 (file)
--- a/drivers/dma/fsldma.h
+++ b/drivers/dma/fsldma.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2007-2010 Freescale Semiconductor, Inc. All rights reserved.
  *
  * Author:
  *   Zhang Wei <wei.zhang@freescale.com>, Jul 2007
@@ -36,6 +36,13 @@
 #define FSL_DMA_MR_DAHE                0x00002000
 #define FSL_DMA_MR_SAHE                0x00001000
 
+/*
+ * Bandwidth/pause control determines how many bytes a given
+ * channel is allowed to transfer before the DMA engine pauses
+ * the current channel and switches to the next channel
+ */
+#define FSL_DMA_MR_BWC         0x08000000
+
 /* Special MR definition for MPC8349 */
 #define FSL_DMA_MR_EOTIE       0x00000080
 #define FSL_DMA_MR_PRC_RM      0x00000800

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index f629e4961af593f0ab5d3697fce77b306ab1ed9b..e53d438142bb8747cb8f288e64d75b0ba2e18a97 100644 (file)
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -379,7 +379,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
        return 0;
 
 err_init:
-       while (i-- >= 0) {
+       while (--i >= 0) {
                struct imxdma_channel *imxdmac = &imxdma->channel[i];
                imx_dma_free(imxdmac->imxdma_channel);
        }

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 0834323a0599595b5a7fa8db1224a85125305031..d0602dd5d1b238eedf2500cd240ef0dc092800a8 100644 (file)
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -951,7 +951,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
                struct sdma_buffer_descriptor *bd = &sdmac->bd[i];
                int param;
 
-               bd->buffer_addr = sgl->dma_address;
+               bd->buffer_addr = sg->dma_address;
 
                count = sg->length;
 
@@ -1385,7 +1385,7 @@ static int __init sdma_module_init(void)
 {
        return platform_driver_probe(&sdma_driver, sdma_probe);
 }
-subsys_initcall(sdma_module_init);
+module_init(sdma_module_init);
 
 MODULE_AUTHOR("Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>");
 MODULE_DESCRIPTION("i.MX SDMA driver");

diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 338bc4eed1f3f55b4de66c623a135289862c783f..3109bd94bc4f403c5aba44e8ff7cb092aa23b4cd 100644 (file)
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -1075,7 +1075,6 @@ static int mid_setup_dma(struct pci_dev *pdev)
        if (NULL == dma->dma_pool) {
                pr_err("ERR_MDMA:pci_pool_create failed\n");
                err = -ENOMEM;
-               kfree(dma);
                goto err_dma_pool;
        }
 
@@ -1186,7 +1185,6 @@ err_engine:
        free_irq(pdev->irq, dma);
 err_irq:
        pci_pool_destroy(dma->dma_pool);
-       kfree(dma);
 err_dma_pool:
        pr_err("ERR_MDMA:setup_dma failed: %d\n", err);
        return err;
@@ -1413,7 +1411,7 @@ static const struct dev_pm_ops intel_mid_dma_pm = {
        .runtime_idle = dma_runtime_idle,
 };
 
-static struct pci_driver intel_mid_dma_pci = {
+static struct pci_driver intel_mid_dma_pci_driver = {
        .name           =       "Intel MID DMA",
        .id_table       =       intel_mid_dma_ids,
        .probe          =       intel_mid_dma_probe,
@@ -1431,13 +1429,13 @@ static int __init intel_mid_dma_init(void)
 {
        pr_debug("INFO_MDMA: LNW DMA Driver Version %s\n",
                        INTEL_MID_DMA_DRIVER_VERSION);
-       return pci_register_driver(&intel_mid_dma_pci);
+       return pci_register_driver(&intel_mid_dma_pci_driver);
 }
 fs_initcall(intel_mid_dma_init);
 
 static void __exit intel_mid_dma_exit(void)
 {
-       pci_unregister_driver(&intel_mid_dma_pci);
+       pci_unregister_driver(&intel_mid_dma_pci_driver);
 }
 module_exit(intel_mid_dma_exit);
 

diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile
index 8997d3fb9051db0020bbeb721cc5a562d780bf47..0ff7270af25b97800d64fcc6f62c350f3115f322 100644 (file)
--- a/drivers/dma/ioat/Makefile
+++ b/drivers/dma/ioat/Makefile
@@ -1,2 +1,2 @@
 obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o
-ioatdma-objs := pci.o dma.o dma_v2.o dma_v3.o dca.o
+ioatdma-y := pci.o dma.o dma_v2.o dma_v3.o dca.o

diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index 92b679024fedd9e033e9cbae311f7f8d7f221142..c064c89420d06080a737ea48356501aeeae869cd 100644 (file)
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -259,11 +259,6 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc)
                return;
        }
 
-       channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr);
-       channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr);
-       channel_writel(pd_chan, SIZE, desc->regs.size);
-       channel_writel(pd_chan, NEXT, desc->regs.next);
-
        dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> dev_addr: %x\n",
                pd_chan->chan.chan_id, desc->regs.dev_addr);
        dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> mem_addr: %x\n",
@@ -273,10 +268,16 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc)
        dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> next: %x\n",
                pd_chan->chan.chan_id, desc->regs.next);
 
-       if (list_empty(&desc->tx_list))
+       if (list_empty(&desc->tx_list)) {
+               channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr);
+               channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr);
+               channel_writel(pd_chan, SIZE, desc->regs.size);
+               channel_writel(pd_chan, NEXT, desc->regs.next);
                pdc_set_mode(&pd_chan->chan, DMA_CTL0_ONESHOT);
-       else
+       } else {
+               channel_writel(pd_chan, NEXT, desc->txd.phys);
                pdc_set_mode(&pd_chan->chan, DMA_CTL0_SG);
+       }
 
        val = dma_readl(pd, CTL2);
        val |= 1 << (DMA_CTL2_START_SHIFT_BITS + pd_chan->chan.chan_id);

diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 0d58a4a4487fbbaefc167182a627c6b0b0f222b3..cef584533ee8a9ca5628b874b5d6c644a4ad05f4 100644 (file)
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4449,9 +4449,8 @@ static int __devinit ppc440spe_adma_probe(struct platform_device *ofdev,
 
        if (!request_mem_region(res.start, resource_size(&res),
                                dev_driver_string(&ofdev->dev))) {
-               dev_err(&ofdev->dev, "failed to request memory region "
-                       "(0x%016llx-0x%016llx)\n",
-                       (u64)res.start, (u64)res.end);
+               dev_err(&ofdev->dev, "failed to request memory region %pR\n",
+                       &res);
                initcode = PPC_ADMA_INIT_MEMREG;
                ret = -EBUSY;
                goto out;