diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_helper.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 2d6c491a0542..516e82d0ed50 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1273,6 +1273,8 @@ static const struct dpcd_quirk dpcd_quirk_list[] = { { OUI(0x00, 0x22, 0xb9), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_CONSTANT_N) }, /* LG LP140WF6-SPM1 eDP panel */ { OUI(0x00, 0x22, 0xb9), DEVICE_ID('s', 'i', 'v', 'a', 'r', 'T'), false, BIT(DP_DPCD_QUIRK_CONSTANT_N) }, + /* Apple panels need some additional handling to support PSR */ + { OUI(0x00, 0x10, 0xfa), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_NO_PSR) } }; #undef OUI diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 419e56342523..f71970df9936 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -274,10 +274,16 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp) DRM_DEBUG_KMS("eDP panel supports PSR version %x\n", intel_dp->psr_dpcd[0]); + if (drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_NO_PSR)) { + DRM_DEBUG_KMS("PSR support not currently available for this panel\n"); + return; + } + 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; dev_priv->psr.sink_sync_latency = intel_dp_get_sink_sync_latency(intel_dp); |