From: José Roberto de Souza Date: Tue, 4 Dec 2018 00:33:58 +0000 (-0800) Subject: drm/i915/psr: Enable sink to trigger a interruption on PSR2 CRC mismatch X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=98751b8cd608a38f810e190c58c94906923ff668;p=linux.git drm/i915/psr: Enable sink to trigger a interruption on PSR2 CRC mismatch eDP spec states 2 different bits to enable sink to trigger a interruption when there is a CRC mismatch. DP_PSR_CRC_VERIFICATION is for PSR only and DP_PSR_IRQ_HPD_WITH_CRC_ERRORS is for PSR2 only. Cc: Dhinakaran Pandiyan Reviewed-by: Dhinakaran Pandiyan Reviewed-by: Rodrigo Vivi Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-4-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 8342c33ede04e..e463bef3c8048 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -394,7 +394,7 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp) if (dev_priv->psr.psr2_enabled) { drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, DP_ALPM_ENABLE); - dpcd_val |= DP_PSR_ENABLE_PSR2; + dpcd_val |= DP_PSR_ENABLE_PSR2 | DP_PSR_IRQ_HPD_WITH_CRC_ERRORS; } else { if (dev_priv->psr.link_standby) dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE;