From: José Roberto de Souza <jose.souza@xxxxxxxxx>
Tiger Lake has eDP-capable transcoders rather than a transcoder
dedicated to eDP. Transcoder A is the one where we have PSR2.
Actually transcoder B also supports PSR2 but only with software
tracking that is not implemented.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 01070eb67571..1d36d7be015d 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -511,12 +511,19 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
int crtc_hdisplay = crtc_state->base.adjusted_mode.crtc_hdisplay;
int crtc_vdisplay = crtc_state->base.adjusted_mode.crtc_vdisplay;
int psr_max_h = 0, psr_max_v = 0;
+ enum transcoder supported;
if (!dev_priv->psr.sink_psr2_support)
return false;
- if (crtc_state->cpu_transcoder != TRANSCODER_EDP) {
- DRM_DEBUG_KMS("PSR2 is only supported in EDP transcoder\n");
+ /*
+ * TODO: PSR2 is also supported in TRANSCODER_B on TGL+ but it requires
+ * software tracking
+ */
+ supported = INTEL_GEN(dev_priv) >= 12 ? TRANSCODER_A : TRANSCODER_EDP;
+ if (crtc_state->cpu_transcoder != supported) {
+ DRM_DEBUG_KMS("PSR2 not supported in transcoder %s\n",
+ transcoder_name(supported));
return false;
}
--
2.21.0
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