[PATCH] drm/sun4i: move rgb mode_valid from connector to encoder

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mode_valid function must be connected to encoder, not connector.
Otherwise it doesn't get called by drm.

Move mode_valid function pointer to encoder helper functions,
changing its prototype according to encoder helper function pointer.

Signed-off-by: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/sun4i/sun4i_rgb.c | 102 +++++++++++++++++++-------------------
 1 file changed, 51 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c
index b8da5a5..6539dcc 100644
--- a/drivers/gpu/drm/sun4i/sun4i_rgb.c
+++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c
@@ -52,11 +52,59 @@ static int sun4i_rgb_get_modes(struct drm_connector *connector)
 	return drm_panel_get_modes(tcon->panel);
 }
 
-static int sun4i_rgb_mode_valid(struct drm_connector *connector,
-				struct drm_display_mode *mode)
+static struct drm_connector_helper_funcs sun4i_rgb_con_helper_funcs = {
+	.get_modes	= sun4i_rgb_get_modes,
+};
+
+static void
+sun4i_rgb_connector_destroy(struct drm_connector *connector)
 {
 	struct sun4i_rgb *rgb = drm_connector_to_sun4i_rgb(connector);
 	struct sun4i_tcon *tcon = rgb->tcon;
+
+	drm_panel_detach(tcon->panel);
+	drm_connector_cleanup(connector);
+}
+
+static const struct drm_connector_funcs sun4i_rgb_con_funcs = {
+	.fill_modes		= drm_helper_probe_single_connector_modes,
+	.destroy		= sun4i_rgb_connector_destroy,
+	.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 void sun4i_rgb_encoder_enable(struct drm_encoder *encoder)
+{
+	struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(encoder);
+	struct sun4i_tcon *tcon = rgb->tcon;
+
+	DRM_DEBUG_DRIVER("Enabling RGB output\n");
+
+	if (!IS_ERR(tcon->panel)) {
+		drm_panel_prepare(tcon->panel);
+		drm_panel_enable(tcon->panel);
+	}
+}
+
+static void sun4i_rgb_encoder_disable(struct drm_encoder *encoder)
+{
+	struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(encoder);
+	struct sun4i_tcon *tcon = rgb->tcon;
+
+	DRM_DEBUG_DRIVER("Disabling RGB output\n");
+
+	if (!IS_ERR(tcon->panel)) {
+		drm_panel_disable(tcon->panel);
+		drm_panel_unprepare(tcon->panel);
+	}
+}
+
+static enum drm_mode_status sun4i_rgb_encoder_mode_valid(struct drm_encoder *crtc,
+							 const struct drm_display_mode *mode)
+{
+	struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(crtc);
+	struct sun4i_tcon *tcon = rgb->tcon;
 	u32 hsync = mode->hsync_end - mode->hsync_start;
 	u32 vsync = mode->vsync_end - mode->vsync_start;
 	unsigned long rate = mode->clock * 1000;
@@ -106,58 +154,10 @@ static int sun4i_rgb_mode_valid(struct drm_connector *connector,
 	return MODE_OK;
 }
 
-static struct drm_connector_helper_funcs sun4i_rgb_con_helper_funcs = {
-	.get_modes	= sun4i_rgb_get_modes,
-	.mode_valid	= sun4i_rgb_mode_valid,
-};
-
-static void
-sun4i_rgb_connector_destroy(struct drm_connector *connector)
-{
-	struct sun4i_rgb *rgb = drm_connector_to_sun4i_rgb(connector);
-	struct sun4i_tcon *tcon = rgb->tcon;
-
-	drm_panel_detach(tcon->panel);
-	drm_connector_cleanup(connector);
-}
-
-static const struct drm_connector_funcs sun4i_rgb_con_funcs = {
-	.fill_modes		= drm_helper_probe_single_connector_modes,
-	.destroy		= sun4i_rgb_connector_destroy,
-	.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 void sun4i_rgb_encoder_enable(struct drm_encoder *encoder)
-{
-	struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(encoder);
-	struct sun4i_tcon *tcon = rgb->tcon;
-
-	DRM_DEBUG_DRIVER("Enabling RGB output\n");
-
-	if (!IS_ERR(tcon->panel)) {
-		drm_panel_prepare(tcon->panel);
-		drm_panel_enable(tcon->panel);
-	}
-}
-
-static void sun4i_rgb_encoder_disable(struct drm_encoder *encoder)
-{
-	struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(encoder);
-	struct sun4i_tcon *tcon = rgb->tcon;
-
-	DRM_DEBUG_DRIVER("Disabling RGB output\n");
-
-	if (!IS_ERR(tcon->panel)) {
-		drm_panel_disable(tcon->panel);
-		drm_panel_unprepare(tcon->panel);
-	}
-}
-
 static struct drm_encoder_helper_funcs sun4i_rgb_enc_helper_funcs = {
 	.disable	= sun4i_rgb_encoder_disable,
 	.enable		= sun4i_rgb_encoder_enable,
+	.mode_valid	= sun4i_rgb_encoder_mode_valid,
 };
 
 static void sun4i_rgb_enc_destroy(struct drm_encoder *encoder)
-- 
2.7.4

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