]> git.openfabrics.org - ~shefty/rdma-dev.git/blobdiff - drivers/gpu/drm/radeon/radeon_device.c
drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks
[~shefty/rdma-dev.git] / drivers / gpu / drm / radeon / radeon_device.c
index cd756262924d3f9e2f05a970613df77ac0d0af51..edfc54e41842248f4dad035c1ece973ca08837b5 100644 (file)
@@ -896,6 +896,25 @@ static void radeon_check_arguments(struct radeon_device *rdev)
        }
 }
 
+/**
+ * radeon_switcheroo_quirk_long_wakeup - return true if longer d3 delay is
+ * needed for waking up.
+ *
+ * @pdev: pci dev pointer
+ */
+static bool radeon_switcheroo_quirk_long_wakeup(struct pci_dev *pdev)
+{
+
+       /* 6600m in a macbook pro */
+       if (pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
+           pdev->subsystem_device == 0x00e2) {
+               printk(KERN_INFO "radeon: quirking longer d3 wakeup delay\n");
+               return true;
+       }
+
+       return false;
+}
+
 /**
  * radeon_switcheroo_set_state - set switcheroo state
  *
@@ -910,10 +929,19 @@ static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switchero
        struct drm_device *dev = pci_get_drvdata(pdev);
        pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
        if (state == VGA_SWITCHEROO_ON) {
+               unsigned d3_delay = dev->pdev->d3_delay;
+
                printk(KERN_INFO "radeon: switched on\n");
                /* don't suspend or resume card normally */
                dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
+
+               if (d3_delay < 20 && radeon_switcheroo_quirk_long_wakeup(pdev))
+                       dev->pdev->d3_delay = 20;
+
                radeon_resume_kms(dev);
+
+               dev->pdev->d3_delay = d3_delay;
+
                dev->switch_power_state = DRM_SWITCH_POWER_ON;
                drm_kms_helper_poll_enable(dev);
        } else {