[PATCH v2 19/19] drm/msm/dp: allow YUV420 mode for DP connector when CDM available

[Paloma Arellano]

All the components of YUV420 over DP are added. Therefore, let's mark the
connector property as true for DP connector when the DP type is not eDP
and when there is a CDM block available.

Changes in v2:
	- Check for if dp_catalog has a CDM block available instead of
	  checking if VSC SDP is allowed when setting the dp connector's
	  ycbcr_420_allowed parameter

Signed-off-by: Paloma Arellano <quic_parellan at quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 +++-
 drivers/gpu/drm/msm/dp/dp_display.c     | 4 ++--
 drivers/gpu/drm/msm/dp/dp_drm.c         | 8 ++++++--
 drivers/gpu/drm/msm/dp/dp_drm.h         | 3 ++-
 drivers/gpu/drm/msm/msm_drv.h           | 5 +++--
 5 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 723cc1d821431..beeaabe499abf 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -565,6 +565,7 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
 {
 	struct drm_encoder *encoder = NULL;
 	struct msm_display_info info;
+	bool yuv_supported;
 	int rc;
 	int i;
 
@@ -583,7 +584,8 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
 			return PTR_ERR(encoder);
 		}
 
-		rc = msm_dp_modeset_init(priv->dp[i], dev, encoder);
+		yuv_supported = !!(dpu_kms->catalog->cdm);
+		rc = msm_dp_modeset_init(priv->dp[i], dev, encoder, yuv_supported);
 		if (rc) {
 			DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
 			return rc;
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index ebcc76ef1d590..9b9f5f2921903 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1471,7 +1471,7 @@ static int dp_display_get_next_bridge(struct msm_dp *dp)
 }
 
 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
-			struct drm_encoder *encoder)
+			struct drm_encoder *encoder, bool yuv_supported)
 {
 	struct dp_display_private *dp_priv;
 	int ret;
@@ -1487,7 +1487,7 @@ int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
 		return ret;
 	}
 
-	dp_display->connector = dp_drm_connector_init(dp_display, encoder);
+	dp_display->connector = dp_drm_connector_init(dp_display, encoder, yuv_supported);
 	if (IS_ERR(dp_display->connector)) {
 		ret = PTR_ERR(dp_display->connector);
 		DRM_DEV_ERROR(dev->dev,
diff --git a/drivers/gpu/drm/msm/dp/dp_drm.c b/drivers/gpu/drm/msm/dp/dp_drm.c
index 46e6889037e88..ab0d0d13b5e2c 100644
--- a/drivers/gpu/drm/msm/dp/dp_drm.c
+++ b/drivers/gpu/drm/msm/dp/dp_drm.c
@@ -353,7 +353,8 @@ int dp_bridge_init(struct msm_dp *dp_display, struct drm_device *dev,
 }
 
 /* connector initialization */
-struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display, struct drm_encoder *encoder)
+struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display, struct drm_encoder *encoder,
+					    bool yuv_supported)
 {
 	struct drm_connector *connector = NULL;
 
@@ -361,8 +362,11 @@ struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display, struct dr
 	if (IS_ERR(connector))
 		return connector;
 
-	if (!dp_display->is_edp)
+	if (!dp_display->is_edp) {
 		drm_connector_attach_dp_subconnector_property(connector);
+		if (yuv_supported)
+			connector->ycbcr_420_allowed = true;
+	}
 
 	drm_connector_attach_encoder(connector, encoder);
 
diff --git a/drivers/gpu/drm/msm/dp/dp_drm.h b/drivers/gpu/drm/msm/dp/dp_drm.h
index b3d684db2383b..45e57ac25a4d9 100644
--- a/drivers/gpu/drm/msm/dp/dp_drm.h
+++ b/drivers/gpu/drm/msm/dp/dp_drm.h
@@ -19,7 +19,8 @@ struct msm_dp_bridge {
 
 #define to_dp_bridge(x)     container_of((x), struct msm_dp_bridge, bridge)
 
-struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display, struct drm_encoder *encoder);
+struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display, struct drm_encoder *encoder,
+					    bool yuv_supported);
 int dp_bridge_init(struct msm_dp *dp_display, struct drm_device *dev,
 			struct drm_encoder *encoder);
 
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index b876ebd48effe..37335777f5c09 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -385,7 +385,7 @@ static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_
 int __init msm_dp_register(void);
 void __exit msm_dp_unregister(void);
 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
-			 struct drm_encoder *encoder);
+			 struct drm_encoder *encoder, bool yuv_supported);
 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
 bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
 			       const struct drm_display_mode *mode);
@@ -403,7 +403,8 @@ static inline void __exit msm_dp_unregister(void)
 }
 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
 				       struct drm_device *dev,
-				       struct drm_encoder *encoder)
+				       struct drm_encoder *encoder,
+				       bool yuv_supported)
 {
 	return -EINVAL;
 }
-- 
2.39.2