drm/exynos: add helper to get crtc from pipe

The helper abstracts out conversion from pipeline
to crtc. Currently it is used in two places, but
there will be more uses in next patches.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index e36579c1c025bc97b2ae2c7b59e2cd46931a54ee..50dd33d5045d6d68f9c9a3f54f86a6c09fc609e7 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -157,9 +157,8 @@ err_crtc:
 
 int exynos_drm_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
 {
-       struct exynos_drm_private *private = dev->dev_private;
-       struct exynos_drm_crtc *exynos_crtc =
-               to_exynos_crtc(private->crtc[pipe]);
+       struct exynos_drm_crtc *exynos_crtc = exynos_drm_crtc_from_pipe(dev,
+                                                                       pipe);
 
        if (exynos_crtc->ops->enable_vblank)
                return exynos_crtc->ops->enable_vblank(exynos_crtc);
@@ -169,9 +168,8 @@ int exynos_drm_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
 
 void exynos_drm_crtc_disable_vblank(struct drm_device *dev, unsigned int pipe)
 {
-       struct exynos_drm_private *private = dev->dev_private;
-       struct exynos_drm_crtc *exynos_crtc =
-               to_exynos_crtc(private->crtc[pipe]);
+       struct exynos_drm_crtc *exynos_crtc = exynos_drm_crtc_from_pipe(dev,
+                                                                       pipe);
 
        if (exynos_crtc->ops->disable_vblank)
                exynos_crtc->ops->disable_vblank(exynos_crtc);

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 502f750bad2a6598287ea0b55d339c83e3fb121b..481b6022c707b1075fbc9bb455fafca64255b53e 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -232,6 +232,14 @@ struct exynos_drm_private {
        wait_queue_head_t       wait;
 };
 
+static inline struct exynos_drm_crtc *
+exynos_drm_crtc_from_pipe(struct drm_device *dev, int pipe)
+{
+       struct exynos_drm_private *private = dev->dev_private;
+
+       return to_exynos_crtc(private->crtc[pipe]);
+}
+
 static inline struct device *to_dma_dev(struct drm_device *dev)
 {
        struct exynos_drm_private *priv = dev->dev_private;