From 60cae44251e8f312381c82322ab6f68e3a481113 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Mon, 3 Dec 2018 16:33:56 -0800 Subject: [PATCH] drm/i915/psr: Don't tell sink that main link will be active while is active PSR2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit For PSR2 there is no register to tell HW to keep main link enabled while PSR2 is active, so don't configure sink DPCD with a misleading value. v2: Moving the set of DP_PSR_CRC_VERIFICATION to the else block of 'if (dev_priv->psr.psr2_enabled)' to another patch. (Rodrigo) Cc: Dhinakaran Pandiyan Cc: Rodrigo Vivi Reviewed-by: Dhinakaran Pandiyan Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-2-jose.souza@intel.com --- drivers/gpu/drm/i915/intel_psr.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index f71970d..90759f7 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -395,10 +395,11 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp) drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, DP_ALPM_ENABLE); dpcd_val |= DP_PSR_ENABLE_PSR2; + } else { + if (dev_priv->psr.link_standby) + dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE; } - if (dev_priv->psr.link_standby) - dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE; if (!dev_priv->psr.psr2_enabled && INTEL_GEN(dev_priv) >= 8) dpcd_val |= DP_PSR_CRC_VERIFICATION; drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, dpcd_val); -- 2.7.4