drm: kirin: 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.
Reviewed-by: NXinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-12-git-send-email-shawnguo@kernel.org

drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c

@@ -302,9 +302,8 @@ static void ade_set_medianoc_qos(struct ade_crtc *acrtc)
 			   SOCKET_QOS_EN, SOCKET_QOS_EN);
 }
 
-static int ade_enable_vblank(struct drm_device *dev, unsigned int pipe)
+static int ade_crtc_enable_vblank(struct drm_crtc *crtc)
 {
-	struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
 	struct ade_crtc *acrtc = to_ade_crtc(crtc);
 	struct ade_hw_ctx *ctx = acrtc->ctx;
 	void __iomem *base = ctx->base;
@@ -318,9 +317,8 @@ static int ade_enable_vblank(struct drm_device *dev, unsigned int pipe)
 	return 0;
 }
 
-static void ade_disable_vblank(struct drm_device *dev, unsigned int pipe)
+static void ade_crtc_disable_vblank(struct drm_crtc *crtc)
 {
-	struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
 	struct ade_crtc *acrtc = to_ade_crtc(crtc);
 	struct ade_hw_ctx *ctx = acrtc->ctx;
 	void __iomem *base = ctx->base;
@@ -570,6 +568,8 @@ static const struct drm_crtc_funcs ade_crtc_funcs = {
 	.set_property = drm_atomic_helper_crtc_set_property,
 	.atomic_duplicate_state	= drm_atomic_helper_crtc_duplicate_state,
 	.atomic_destroy_state	= drm_atomic_helper_crtc_destroy_state,
+	.enable_vblank	= ade_crtc_enable_vblank,
+	.disable_vblank	= ade_crtc_disable_vblank,
 };
 
 static int ade_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
@@ -1025,8 +1025,6 @@ static int ade_drm_init(struct platform_device *pdev)
 			       IRQF_SHARED, dev->driver->name, acrtc);
 	if (ret)
 		return ret;
-	dev->driver->enable_vblank = ade_enable_vblank;
-	dev->driver->disable_vblank = ade_disable_vblank;
 
 	return 0;
 }