drm: tilcdc: use vblank hooks in struct drm_crtc_funcs

The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

While at it, the 'return' of .disable_vblank is dropped to fix the
following checkpatch warning.

 WARNING: void function return statements are not generally useful

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Jyri Sarha <jsarha@ti.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-22-git-send-email-shawnguo@kernel.org

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index f80bf93..93505bc 100644 (file)
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -695,6 +695,15 @@ static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
        return 0;
 }
 
+static int tilcdc_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+       return 0;
+}
+
+static void tilcdc_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+}
+
 static const struct drm_crtc_funcs tilcdc_crtc_funcs = {
        .destroy        = tilcdc_crtc_destroy,
        .set_config     = drm_atomic_helper_set_config,
@@ -702,6 +711,8 @@ static const struct drm_crtc_funcs tilcdc_crtc_funcs = {
        .reset          = drm_atomic_helper_crtc_reset,
        .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+       .enable_vblank  = tilcdc_crtc_enable_vblank,
+       .disable_vblank = tilcdc_crtc_disable_vblank,
 };
 
 static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index d5bc98e..81d80a2 100644 (file)
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -437,16 +437,6 @@ static irqreturn_t tilcdc_irq(int irq, void *arg)
        return tilcdc_crtc_irq(priv->crtc);
 }
 
-static int tilcdc_enable_vblank(struct drm_device *dev, unsigned int pipe)
-{
-       return 0;
-}
-
-static void tilcdc_disable_vblank(struct drm_device *dev, unsigned int pipe)
-{
-       return;
-}
-
 #if defined(CONFIG_DEBUG_FS)
 static const struct {
        const char *name;
@@ -557,8 +547,6 @@ static struct drm_driver tilcdc_driver = {
                               DRIVER_PRIME | DRIVER_ATOMIC),
        .lastclose          = tilcdc_lastclose,
        .irq_handler        = tilcdc_irq,
-       .enable_vblank      = tilcdc_enable_vblank,
-       .disable_vblank     = tilcdc_disable_vblank,
        .gem_free_object_unlocked = drm_gem_cma_free_object,
        .gem_vm_ops         = &drm_gem_cma_vm_ops,
        .dumb_create        = drm_gem_cma_dumb_create,