On Thu, 29 Nov 2018, José Roberto de Souza jose.souza@intel.com wrote:
i915 yet don't support PSR in Apple panels, so lets keep it disabled while we work on that.
v2: Renamed DP_DPCD_QUIRK_PSR_NOT_CURRENTLY_SUPPORTED to DP_DPCD_QUIRK_NO_PSR (Ville)
Fixes: 598c6cfe0690 (drm/i915/psr: Enable PSR1 on gen-9+ HW) Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Rodrigo Vivi rodrigo.vivi@intel.com Cc: Dhinakaran Pandiyan dhinakaran.pandiyan@intel.com Signed-off-by: José Roberto de Souza jose.souza@intel.com
drivers/gpu/drm/drm_dp_helper.c | 2 ++ drivers/gpu/drm/i915/intel_psr.c | 6 ++++++ include/drm/drm_dp_helper.h | 1 + 3 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 2d6c491a0542..b00fd5ced0a0 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 needs some additional handling to support PSR */
nitpick "panels needs"
- { 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 2084784f320d..40ca6cc43cc4 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -278,6 +278,12 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp) DRM_DEBUG_KMS("Panel lacks power state control, PSR cannot be enabled\n"); return; }
- 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;- }
- dev_priv->psr.sink_support = true; dev_priv->psr.sink_sync_latency = intel_dp_get_sink_sync_latency(intel_dp);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 5736c942c85b..047314ce25d6 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1365,6 +1365,7 @@ enum drm_dp_quirk { * to 16 bits. So will give a constant value (0x8000) for compatability. */ DP_DPCD_QUIRK_CONSTANT_N,
Please add a proper comment here, similar to above DP_DPCD_QUIRK_CONSTANT_N.
BR, Jani.
- DP_DPCD_QUIRK_NO_PSR,
};
/**