diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 11 |
2 files changed, 11 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ce07bd794aed..37b9f62aeb6e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3730,8 +3730,6 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) dev_priv->no_aux_handshake = intel_dp->dpcd[DP_MAX_DOWNSPREAD] & DP_NO_AUX_HANDSHAKE_LINK_TRAINING; - intel_psr_init_dpcd(intel_dp); - /* * Read the eDP display control registers. * @@ -3747,6 +3745,12 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) DRM_DEBUG_KMS("eDP DPCD: %*ph\n", (int) sizeof(intel_dp->edp_dpcd), intel_dp->edp_dpcd); + /* + * This has to be called after intel_dp->edp_dpcd is filled, PSR checks + * for SET_POWER_CAPABLE bit in intel_dp->edp_dpcd[1] + */ + intel_psr_init_dpcd(intel_dp); + /* Read the eDP 1.4+ supported link rates. */ if (intel_dp->edp_dpcd[0] >= DP_EDP_14) { __le16 sink_rates[DP_MAX_SUPPORTED_RATES]; diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index f0ff005bc86a..26dbb6097981 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -248,9 +248,13 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp) if (!intel_dp->psr_dpcd[0]) return; - DRM_DEBUG_KMS("eDP panel supports PSR version %x\n", intel_dp->psr_dpcd[0]); + + if (!(intel_dp->edp_dpcd[1] & DP_EDP_SET_POWER_CAP)) { + DRM_DEBUG_KMS("Panel lacks power state control, PSR cannot be enabled\n"); + return; + } dev_priv->psr.sink_support = true; if (INTEL_GEN(dev_priv) >= 9 && @@ -570,11 +574,6 @@ void intel_psr_compute_config(struct intel_dp *intel_dp, return; } - if (!(intel_dp->edp_dpcd[1] & DP_EDP_SET_POWER_CAP)) { - DRM_DEBUG_KMS("PSR condition failed: panel lacks power state control\n"); - return; - } - crtc_state->has_psr = true; crtc_state->has_psr2 = intel_psr2_config_valid(intel_dp, crtc_state); DRM_DEBUG_KMS("Enabling PSR%s\n", crtc_state->has_psr2 ? "2" : ""); |