drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid()

When validating a mode, bridges may need to do so in the context of a
display, as specified by drm_display_info. An example is the meson
dw-hdmi bridge that needs to consider the YUV 4:2:0 output format to
perform clock calculations.

Bridges that need the display info currently retrieve it from the
drm_connector created by the bridge. This gets in the way of moving
connector creation out of bridge drivers. To make this possible, pass
the drm_display_info to drm_bridge_funcs .mode_valid().

Changes to the bridge drivers have been performed with the following
coccinelle semantic patch and have been compile-tested.

@ rule1 @
identifier funcs;
identifier fn;
@@
 struct drm_bridge_funcs funcs = {
 	...,
 	.mode_valid = fn
 };

@ depends on rule1 @
identifier rule1.fn;
identifier bridge;
identifier mode;
@@
 enum drm_mode_status fn(
 	struct drm_bridge *bridge,
+	const struct drm_display_info *info,
 	const struct drm_display_mode *mode
 )
 {
 	...
 }

Signed-off-by: Laurent Pinchart <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Boris Brezillon <[email protected]>
Reviewed-by: Guido Günther <[email protected]> # for the nwl-dsi part:
Signed-off-by: Sam Ravnborg <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-11-laurent.pinchart+renesas@ideasonboard.com

Author: Laurent Pinchart

drivers/gpu/drm/bridge/analogix/analogix-anx6345.c

@@ -585,6 +585,7 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge,
 
 static enum drm_mode_status
 anx6345_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
 			  const struct drm_display_mode *mode)
 {
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)

drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c

@@ -944,6 +944,7 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge,
 
 static enum drm_mode_status
 anx78xx_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
 			  const struct drm_display_mode *mode)
 {
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)

drivers/gpu/drm/bridge/cdns-dsi.c

@@ -663,6 +663,7 @@ static int cdns_dsi_bridge_attach(struct drm_bridge *bridge,
 
 static enum drm_mode_status
 cdns_dsi_bridge_mode_valid(struct drm_bridge *bridge,
+			   const struct drm_display_info *info,
 			   const struct drm_display_mode *mode)
 {
 	struct cdns_dsi_input *input = bridge_to_cdns_dsi_input(bridge);

drivers/gpu/drm/bridge/chrontel-ch7033.c

@@ -317,6 +317,7 @@ static void ch7033_bridge_detach(struct drm_bridge *bridge)
 }
 
 static enum drm_mode_status ch7033_bridge_mode_valid(struct drm_bridge *bridge,
+				     const struct drm_display_info *info,
 				     const struct drm_display_mode *mode)
 {
 	if (mode->clock > 165000)

drivers/gpu/drm/bridge/nwl-dsi.c

@@ -818,6 +818,7 @@ static bool nwl_dsi_bridge_mode_fixup(struct drm_bridge *bridge,
 
 static enum drm_mode_status
 nwl_dsi_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
 			  const struct drm_display_mode *mode)
 {
 	struct nwl_dsi *dsi = bridge_to_dsi(bridge);

drivers/gpu/drm/bridge/sii9234.c

@@ -873,6 +873,7 @@ static inline struct sii9234 *bridge_to_sii9234(struct drm_bridge *bridge)
 }
 
 static enum drm_mode_status sii9234_mode_valid(struct drm_bridge *bridge,
+					 const struct drm_display_info *info,
 					 const struct drm_display_mode *mode)
 {
 	if (mode->clock > MHL1_MAX_CLK)

drivers/gpu/drm/bridge/sil-sii8620.c

@@ -2244,6 +2244,7 @@ static int sii8620_is_packing_required(struct sii8620 *ctx,
 }
 
 static enum drm_mode_status sii8620_mode_valid(struct drm_bridge *bridge,
+					 const struct drm_display_info *info,
 					 const struct drm_display_mode *mode)
 {
 	struct sii8620 *ctx = bridge_to_sii8620(bridge);

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

@@ -2767,6 +2767,7 @@ static void dw_hdmi_bridge_detach(struct drm_bridge *bridge)
 
 static enum drm_mode_status
 dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
 			  const struct drm_display_mode *mode)
 {
 	struct dw_hdmi *hdmi = bridge->driver_private;

drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c

@@ -924,6 +924,7 @@ static void dw_mipi_dsi_bridge_enable(struct drm_bridge *bridge)
 
 static enum drm_mode_status
 dw_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge,
+			      const struct drm_display_info *info,
 			      const struct drm_display_mode *mode)
 {
 	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);

drivers/gpu/drm/bridge/tc358767.c

@@ -1306,6 +1306,7 @@ static bool tc_bridge_mode_fixup(struct drm_bridge *bridge,
 }
 
 static enum drm_mode_status tc_mode_valid(struct drm_bridge *bridge,
+					  const struct drm_display_info *info,
 					  const struct drm_display_mode *mode)
 {
 	struct tc_data *tc = bridge_to_tc(bridge);