drm/gma500: Add generic set_config() function

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

2 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index cca40c0b64e4..2a3e9254e651 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -519,6 +519,22 @@ void gma_crtc_destroy(struct drm_crtc *crtc)
         kfree(psb_intel_crtc);
 }
 
+int gma_crtc_set_config(struct drm_mode_set *set)
+{
+        struct drm_device *dev = set->crtc->dev;
+        struct drm_psb_private *dev_priv = dev->dev_private;
+        int ret;
+
+        if (!dev_priv->rpm_enabled)
+                return drm_crtc_helper_set_config(set);
+
+        pm_runtime_forbid(&dev->pdev->dev);
+        ret = drm_crtc_helper_set_config(set);
+        pm_runtime_allow(&dev->pdev->dev);
+
+        return ret;
+}
+
 /**
  * Save HW states of given crtc
  */
diff --git a/drivers/gpu/drm/gma500/gma_display.h b/drivers/gpu/drm/gma500/gma_display.h
index 8847de069516..1044c165c714 100644
--- a/drivers/gpu/drm/gma500/gma_display.h
+++ b/drivers/gpu/drm/gma500/gma_display.h
@@ -22,6 +22,8 @@
 #ifndef _GMA_DISPLAY_H_
 #define _GMA_DISPLAY_H_
 
+#include <linux/pm_runtime.h>
+
 struct gma_clock_t {
         /* given values */
         int n;
@@ -80,6 +82,7 @@ extern void gma_crtc_prepare(struct drm_crtc *crtc);
 extern void gma_crtc_commit(struct drm_crtc *crtc);
 extern void gma_crtc_disable(struct drm_crtc *crtc);
 extern void gma_crtc_destroy(struct drm_crtc *crtc);
+extern int gma_crtc_set_config(struct drm_mode_set *set);
 
 extern void gma_crtc_save(struct drm_crtc *crtc);
 extern void gma_crtc_restore(struct drm_crtc *crtc);