drm/tilcdc: tfp410: Add atomic modeset helpers to connector funcs

Add atomic modeset helpers to tfp410 connector funcs. Property handling
related helpers, atomic reset helper, and new dpms helper is needed in
connector for atomic modeseting to work. The default helper functions
are enough.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
index 21f6485..741c7b5 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
@@ -20,6 +20,7 @@
 #include <linux/of_gpio.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/pinctrl/consumer.h>
+#include <drm/drm_atomic_helper.h>
 
 #include "tilcdc_drv.h"
 
@@ -200,9 +201,12 @@
 
 static const struct drm_connector_funcs tfp410_connector_funcs = {
 	.destroy            = tfp410_connector_destroy,
-	.dpms               = drm_helper_connector_dpms,
+	.dpms               = drm_atomic_helper_connector_dpms,
 	.detect             = tfp410_connector_detect,
 	.fill_modes         = drm_helper_probe_single_connector_modes,
+	.reset              = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static const struct drm_connector_helper_funcs tfp410_connector_helper_funcs = {