[PATCH] drm/amd/display: disable psr whenever applicable

[Shirish S]

[Why]
psr feature continues to be enabled for non capable links.

[How]
disable the feature on links that are not capable of the same.

Signed-off-by: Shirish S <shirish.s at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
index 8ca10ab3dfc1..f73af028f312 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
@@ -60,11 +60,17 @@ static bool link_supports_psrsu(struct dc_link *link)
  */
 void amdgpu_dm_set_psr_caps(struct dc_link *link)
 {
-	if (!(link->connector_signal & SIGNAL_TYPE_EDP))
+	if (!(link->connector_signal & SIGNAL_TYPE_EDP)) {
+		DRM_ERROR("Disabling PSR as connector is not eDP\n")
+		link->psr_settings.psr_feature_enabled = false;
 		return;
+	}
 
-	if (link->type == dc_connection_none)
+	if (link->type == dc_connection_none) {
+		DRM_ERROR("Disabling PSR as eDP connection type is invalid\n")
+		link->psr_settings.psr_feature_enabled = false;
 		return;
+	}
 
 	if (link->dpcd_caps.psr_info.psr_version == 0) {
 		link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED;
-- 
2.17.1