diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 7823a1b5c7a6..5a937fcd3a69 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2686,11 +2686,14 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) /* Check if the panel supports PSR */ memset(intel_dp->psr_dpcd, 0, sizeof(intel_dp->psr_dpcd)); - intel_dp_aux_native_read_retry(intel_dp, DP_PSR_SUPPORT, - intel_dp->psr_dpcd, - sizeof(intel_dp->psr_dpcd)); - if (is_edp_psr(intel_dp)) - DRM_DEBUG_KMS("Detected EDP PSR Panel.\n"); + if (is_edp(intel_dp)) { + intel_dp_aux_native_read_retry(intel_dp, DP_PSR_SUPPORT, + intel_dp->psr_dpcd, + sizeof(intel_dp->psr_dpcd)); + if (is_edp_psr(intel_dp)) + DRM_DEBUG_KMS("Detected EDP PSR Panel.\n"); + } + if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) return true; /* native DP sink */ |