PSR2 is supported in transcoder A and B on Alderlake-P.
v2:
- explicity checking for transcoder A and B to avoid invalid transcoder
BSpec: 49185
Reviewed-by: Jouni Högander <jouni.hogander@xxxxxxxxx> # v1
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Mika Kahola <mika.kahola@xxxxxxxxx>
Cc: Jouni Hogander <jouni.hogander@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 8d08e3cf08c1f..33b50646b9c97 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -588,7 +588,9 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
static bool
transcoder_has_psr2(struct drm_i915_private *dev_priv, enum transcoder trans)
{
- if (DISPLAY_VER(dev_priv) >= 12)
+ if (IS_ALDERLAKE_P(dev_priv))
+ return trans == TRANSCODER_A || trans == TRANSCODER_B;
+ else if (DISPLAY_VER(dev_priv) >= 12)
return trans == TRANSCODER_A;
else
return trans == TRANSCODER_EDP;
--
2.33.1
