[PATCH 6.5 178/285] drm/amd/display: Temporary Disable MST DP Colorspace Property

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6.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Fangzhi Zuo <jerry.zuo@xxxxxxx>

commit 69a959610229ec31b534eaa5f6ec75965f321bed upstream.

Create MST colorsapce property for downstream device would trigger
warning message "RIP: 0010:drm_mode_object_add+0x8e/0xa0 [drm]"

After driver is loaded and drm device is registered, create
dp colorspace property triggers warning storm at
WARN_ON(!dev->driver->load && dev->registered && !obj_free_cb);

Temporary disabling MST dp colorspace property for now.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Acked-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Fangzhi Zuo <jerry.zuo@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7295,7 +7295,7 @@ void amdgpu_dm_connector_init_helper(str
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA) {
 		if (!drm_mode_create_hdmi_colorspace_property(&aconnector->base, supported_colorspaces))
 			drm_connector_attach_colorspace_property(&aconnector->base);
-	} else if (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	} else if ((connector_type == DRM_MODE_CONNECTOR_DisplayPort && !aconnector->mst_root) ||
 		   connector_type == DRM_MODE_CONNECTOR_eDP) {
 		if (!drm_mode_create_dp_colorspace_property(&aconnector->base, supported_colorspaces))
 			drm_connector_attach_colorspace_property(&aconnector->base);





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