drm/radeon: fix runpm disabling on non-PX harder
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 11 Mar 2014 19:02:30 +0000 (15:02 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 12 Mar 2014 19:53:23 +0000 (15:53 -0400)
Make sure runtime pm is disabled on non-PX hardware.
Should fix powerdown problems without displays attached.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/radeon_kms.c

index 2aecd6d..66ed3ea 100644 (file)
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
+
+#if defined(CONFIG_VGA_SWITCHEROO)
+bool radeon_is_px(void);
+#else
+static inline bool radeon_is_px(void) { return false; }
+#endif
+
 /**
  * radeon_driver_unload_kms - Main unload function for KMS.
  *
@@ -130,7 +137,8 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
                                "Error during ACPI methods call\n");
        }
 
-       if (radeon_runtime_pm != 0) {
+       if ((radeon_runtime_pm == 1) ||
+           ((radeon_runtime_pm == -1) && radeon_is_px())) {
                pm_runtime_use_autosuspend(dev->dev);
                pm_runtime_set_autosuspend_delay(dev->dev, 5000);
                pm_runtime_set_active(dev->dev);