diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 343e1d9fa761..4f33115f5ca3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3060,6 +3060,14 @@ static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp) return dprx & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED; } +bool intel_dp_get_alpm_status(struct intel_dp *intel_dp) +{ + uint8_t alpm_caps = 0; + + drm_dp_dpcd_readb(&intel_dp->aux, DP_RECEIVER_ALPM_CAP, &alpm_caps); + return alpm_caps & DP_ALPM_CAP; +} + /* These are source-specific values. */ uint8_t intel_dp_voltage_max(struct intel_dp *intel_dp) @@ -3644,6 +3652,8 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) intel_dp_get_y_cord_status(intel_dp); dev_priv->psr.colorimetry_support = intel_dp_get_colorimetry_status(intel_dp); + dev_priv->psr.alpm = + intel_dp_get_alpm_status(intel_dp); } } |