drm: bridge: dw-hdmi: Pass drm_display_info to .mode_valid()

Replace the drm_connector pointer passed to the .mode_valid() function
with a const drm_display_info pointer, as that's all the function should
need. Use the display info passed to the bridge .mode_valid() operation
instead of retrieving it from the connector, to prepare for make
connector creation optional.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-16-laurent.pinchart+renesas@ideasonboard.com

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

@@ -2769,7 +2769,6 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
 {
 	struct dw_hdmi *hdmi = bridge->driver_private;
 	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
-	struct drm_connector *connector = &hdmi->connector;
 	enum drm_mode_status mode_status = MODE_OK;
 
 	/* We don't support double-clocked modes */
@@ -2777,8 +2776,8 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
 		return MODE_BAD;
 
 	if (pdata->mode_valid)
-		mode_status = pdata->mode_valid(hdmi, pdata->priv_data,
-						connector, mode);
+		mode_status = pdata->mode_valid(hdmi, pdata->priv_data, info,
+						mode);
 
 	return mode_status;
 }

drivers/gpu/drm/imx/dw_hdmi-imx.c

@@ -146,7 +146,7 @@ static const struct drm_encoder_helper_funcs dw_hdmi_imx_encoder_helper_funcs =
 
 static enum drm_mode_status
 imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
-		      struct drm_connector *con,
+		      const struct drm_display_info *info,
 		      const struct drm_display_mode *mode)
 {
 	if (mode->clock < 13500)
@@ -160,7 +160,7 @@ imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
 
 static enum drm_mode_status
 imx6dl_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
-		       struct drm_connector *con,
+		       const struct drm_display_info *info,
 		       const struct drm_display_mode *mode)
 {
 	if (mode->clock < 13500)

drivers/gpu/drm/meson/meson_dw_hdmi.c

@@ -631,12 +631,12 @@ static irqreturn_t dw_hdmi_top_thread_irq(int irq, void *dev_id)
 
 static enum drm_mode_status
 dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
-		   struct drm_connector *connector,
+		   const struct drm_display_info *display_info,
 		   const struct drm_display_mode *mode)
 {
 	struct meson_dw_hdmi *dw_hdmi = data;
 	struct meson_drm *priv = dw_hdmi->priv;
-	bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
+	bool is_hdmi2_sink = display_info->hdmi.scdc.supported;
 	unsigned int phy_freq;
 	unsigned int vclk_freq;
 	unsigned int venc_freq;
@@ -647,10 +647,10 @@ dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
 	DRM_DEBUG_DRIVER("Modeline " DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
 
 	/* If sink does not support 540MHz, reject the non-420 HDMI2 modes */
-	if (connector->display_info.max_tmds_clock &&
-	    mode->clock > connector->display_info.max_tmds_clock &&
-	    !drm_mode_is_420_only(&connector->display_info, mode) &&
-	    !drm_mode_is_420_also(&connector->display_info, mode))
+	if (display_info->max_tmds_clock &&
+	    mode->clock > display_info->max_tmds_clock &&
+	    !drm_mode_is_420_only(display_info, mode) &&
+	    !drm_mode_is_420_also(display_info, mode))
 		return MODE_BAD;
 
 	/* Check against non-VIC supported modes */
@@ -667,9 +667,9 @@ dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
 	vclk_freq = mode->clock;
 
 	/* For 420, pixel clock is half unlike venc clock */
-	if (drm_mode_is_420_only(&connector->display_info, mode) ||
+	if (drm_mode_is_420_only(display_info, mode) ||
 	    (!is_hdmi2_sink &&
-	     drm_mode_is_420_also(&connector->display_info, mode)))
+	     drm_mode_is_420_also(display_info, mode)))
 		vclk_freq /= 2;
 
 	/* TMDS clock is pixel_clock * 10 */
@@ -684,9 +684,9 @@ dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
 
 	/* VENC double pixels for 1080i, 720p and YUV420 modes */
 	if (meson_venc_hdmi_venc_repeat(vic) ||
-	    drm_mode_is_420_only(&connector->display_info, mode) ||
+	    drm_mode_is_420_only(display_info, mode) ||
 	    (!is_hdmi2_sink &&
-	     drm_mode_is_420_also(&connector->display_info, mode)))
+	     drm_mode_is_420_also(display_info, mode)))
 		venc_freq *= 2;
 
 	vclk_freq = max(venc_freq, hdmi_freq);

drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c

@@ -39,7 +39,7 @@ static const struct rcar_hdmi_phy_params rcar_hdmi_phy_params[] = {
 
 static enum drm_mode_status
 rcar_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
-		     struct drm_connector *connector,
+		     const struct drm_display_info *info,
 		     const struct drm_display_mode *mode)
 {
 	/*

drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

@@ -221,7 +221,7 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
 
 static enum drm_mode_status
 dw_hdmi_rockchip_mode_valid(struct dw_hdmi *hdmi, void *data,
-			    struct drm_connector *connector,
+			    const struct drm_display_info *info,
 			    const struct drm_display_mode *mode)
 {
 	const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;

drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c

@@ -32,7 +32,7 @@ sun8i_dw_hdmi_encoder_helper_funcs = {
 
 static enum drm_mode_status
 sun8i_dw_hdmi_mode_valid_a83t(struct dw_hdmi *hdmi, void *data,
-			      struct drm_connector *connector,
+			      const struct drm_display_info *info,
 			      const struct drm_display_mode *mode)
 {
 	if (mode->clock > 297000)
@@ -43,7 +43,7 @@ sun8i_dw_hdmi_mode_valid_a83t(struct dw_hdmi *hdmi, void *data,
 
 static enum drm_mode_status
 sun8i_dw_hdmi_mode_valid_h6(struct dw_hdmi *hdmi, void *data,
-			    struct drm_connector *connector,
+			    const struct drm_display_info *info,
 			    const struct drm_display_mode *mode)
 {
 	/*

drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h

@@ -177,7 +177,7 @@ struct sun8i_hdmi_phy {
 
 struct sun8i_dw_hdmi_quirks {
 	enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
-					   struct drm_connector *connector,
+					   const struct drm_display_info *info,
 					   const struct drm_display_mode *mode);
 	unsigned int set_rate : 1;
 	unsigned int use_drm_infoframe : 1;

include/drm/bridge/dw_hdmi.h

@@ -8,7 +8,7 @@
 
 #include <sound/hdmi-codec.h>
 
-struct drm_connector;
+struct drm_display_info;
 struct drm_display_mode;
 struct drm_encoder;
 struct dw_hdmi;
@@ -137,7 +137,7 @@ struct dw_hdmi_plat_data {
 
 	/* Platform-specific mode validation (optional). */
 	enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
-					   struct drm_connector *connector,
+					   const struct drm_display_info *info,
 					   const struct drm_display_mode *mode);
 
 	/* Vendor PHY support */