drm: hdlcd: 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.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-5-git-send-email-shawnguo@kernel.org

drivers/gpu/drm/arm/hdlcd_crtc.c

@@ -42,6 +42,24 @@ static void hdlcd_crtc_cleanup(struct drm_crtc *crtc)
 	drm_crtc_cleanup(crtc);
 }
 
+static int hdlcd_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
+	unsigned int mask = hdlcd_read(hdlcd, HDLCD_REG_INT_MASK);
+
+	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, mask | HDLCD_INTERRUPT_VSYNC);
+
+	return 0;
+}
+
+static void hdlcd_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
+	unsigned int mask = hdlcd_read(hdlcd, HDLCD_REG_INT_MASK);
+
+	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, mask & ~HDLCD_INTERRUPT_VSYNC);
+}
+
 static const struct drm_crtc_funcs hdlcd_crtc_funcs = {
 	.destroy = hdlcd_crtc_cleanup,
 	.set_config = drm_atomic_helper_set_config,
@@ -49,6 +67,8 @@ static const struct drm_crtc_funcs hdlcd_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 = hdlcd_crtc_enable_vblank,
+	.disable_vblank = hdlcd_crtc_disable_vblank,
 };
 
 static struct simplefb_format supported_formats[] = SIMPLEFB_FORMATS;

drivers/gpu/drm/arm/hdlcd_drv.c

@@ -199,24 +199,6 @@ static void hdlcd_irq_uninstall(struct drm_device *drm)
 	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, irq_mask);
 }
 
-static int hdlcd_enable_vblank(struct drm_device *drm, unsigned int crtc)
-{
-	struct hdlcd_drm_private *hdlcd = drm->dev_private;
-	unsigned int mask = hdlcd_read(hdlcd, HDLCD_REG_INT_MASK);
-
-	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, mask | HDLCD_INTERRUPT_VSYNC);
-
-	return 0;
-}
-
-static void hdlcd_disable_vblank(struct drm_device *drm, unsigned int crtc)
-{
-	struct hdlcd_drm_private *hdlcd = drm->dev_private;
-	unsigned int mask = hdlcd_read(hdlcd, HDLCD_REG_INT_MASK);
-
-	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, mask & ~HDLCD_INTERRUPT_VSYNC);
-}
-
 #ifdef CONFIG_DEBUG_FS
 static int hdlcd_show_underrun_count(struct seq_file *m, void *arg)
 {
@@ -278,8 +260,6 @@ static struct drm_driver hdlcd_driver = {
 	.irq_preinstall = hdlcd_irq_preinstall,
 	.irq_postinstall = hdlcd_irq_postinstall,
 	.irq_uninstall = hdlcd_irq_uninstall,
-	.enable_vblank = hdlcd_enable_vblank,
-	.disable_vblank = hdlcd_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,