diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 1aa4a127afaf..01bf304c705f 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -495,12 +495,14 @@ static u8 intel_dp_get_su_capability(struct intel_dp *intel_dp) { u8 su_capability = 0; - if (intel_dp->psr.sink_panel_replay_su_support) - drm_dp_dpcd_readb(&intel_dp->aux, - DP_PANEL_REPLAY_CAP_CAPABILITY, - &su_capability); - else + if (intel_dp->psr.sink_panel_replay_su_support) { + if (drm_dp_dpcd_read_byte(&intel_dp->aux, + DP_PANEL_REPLAY_CAP_CAPABILITY, + &su_capability) < 0) + return 0; + } else { su_capability = intel_dp->psr_dpcd[1]; + } return su_capability; } |