The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
Possible dependencies:
6094b9136ca9 ("drm/amd/display: explicitly disable psr_feature_enable appropriately")
cd9a0d026baa ("drm/amd/display: parse and check PSR SU caps")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 6094b9136ca9038b61e9c4b5d25cd5512ce50b34 Mon Sep 17 00:00:00 2001
From: Shirish S <shirish.s@xxxxxxx>
Date: Fri, 7 Oct 2022 20:31:49 +0530
Subject: [PATCH] drm/amd/display: explicitly disable psr_feature_enable
appropriately
[Why]
If psr_feature_enable is set to true by default, it continues to be enabled
for non capable links.
[How]
explicitly disable the feature on links that are not capable of the same.
Fixes: 8c322309e48e9 ("drm/amd/display: Enable PSR")
Signed-off-by: Shirish S <shirish.s@xxxxxxx>
Reviewed-by: Leo Li <sunpeng.li@xxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 5.15+
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..26291db0a3cf 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 +60,15 @@ 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)) {
+ link->psr_settings.psr_feature_enabled = false;
return;
+ }
- if (link->type == dc_connection_none)
+ if (link->type == dc_connection_none) {
+ 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;
