* drm/arm: Select DRM_GEM_CMEA_HELPER for HDLCD

* drm/bridge: ti-sn65dsi86: Properly undo autosuspend
  * drm/vrr: Fix potential NULL-pointer deref
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Merge tag 'drm-misc-fixes-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 * drm/arm: Select DRM_GEM_CMEA_HELPER for HDLCD
 * drm/bridge: ti-sn65dsi86: Properly undo autosuspend
 * drm/vrr: Fix potential NULL-pointer deref

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YiCTGZ8IVCw0ilKK@linux-uq9g

drivers/gpu/drm/arm/Kconfig

@@ -6,6 +6,7 @@ config DRM_HDLCD
 	depends on DRM && OF && (ARM || ARM64 || COMPILE_TEST)
 	depends on COMMON_CLK
 	select DRM_KMS_HELPER
+	select DRM_GEM_CMA_HELPER
 	help
 	  Choose this option if you have an ARM High Definition Colour LCD
 	  controller.

drivers/gpu/drm/bridge/ti-sn65dsi86.c

@@ -1802,6 +1802,7 @@ static inline void ti_sn_gpio_unregister(void) {}
 
 static void ti_sn65dsi86_runtime_disable(void *data)
 {
+	pm_runtime_dont_use_autosuspend(data);
 	pm_runtime_disable(data);
 }
 
@@ -1861,11 +1862,11 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
 				     "failed to get reference clock\n");
 
 	pm_runtime_enable(dev);
+	pm_runtime_set_autosuspend_delay(pdata->dev, 500);
+	pm_runtime_use_autosuspend(pdata->dev);
 	ret = devm_add_action_or_reset(dev, ti_sn65dsi86_runtime_disable, dev);
 	if (ret)
 		return ret;
-	pm_runtime_set_autosuspend_delay(pdata->dev, 500);
-	pm_runtime_use_autosuspend(pdata->dev);
 
 	ti_sn65dsi86_debugfs_init(pdata);
 

drivers/gpu/drm/drm_connector.c

@@ -2330,6 +2330,9 @@ EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
 void drm_connector_set_vrr_capable_property(
 		struct drm_connector *connector, bool capable)
 {
+	if (!connector->vrr_capable_property)
+		return;
+
 	drm_object_property_set_value(&connector->base,
 				      connector->vrr_capable_property,
 				      capable);