diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 8c18f723b061..343e1d9fa761 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3042,6 +3042,24 @@ intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_ DP_LINK_STATUS_SIZE) == DP_LINK_STATUS_SIZE; } +static bool intel_dp_get_y_cord_status(struct intel_dp *intel_dp) +{ + uint8_t psr_caps = 0; + + drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_CAPS, &psr_caps); + return psr_caps & DP_PSR2_SU_Y_COORDINATE_REQUIRED; +} + +static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp) +{ + uint8_t dprx = 0; + + drm_dp_dpcd_readb(&intel_dp->aux, + DP_DPRX_FEATURE_ENUMERATION_LIST, + &dprx); + return dprx & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED; +} + /* These are source-specific values. */ uint8_t intel_dp_voltage_max(struct intel_dp *intel_dp) @@ -3620,6 +3638,14 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) dev_priv->psr.psr2_support = dev_priv->psr.aux_frame_sync; DRM_DEBUG_KMS("PSR2 %s on sink", dev_priv->psr.psr2_support ? "supported" : "not supported"); + + if (dev_priv->psr.psr2_support) { + dev_priv->psr.y_cord_support = + intel_dp_get_y_cord_status(intel_dp); + dev_priv->psr.colorimetry_support = + intel_dp_get_colorimetry_status(intel_dp); + } + } /* Read the eDP Display control capabilities registers */ |