From de572e881b9d7f19da74981dd320699ea796e5a3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Wed, 29 Sep 2021 17:14:07 -0700 Subject: [PATCH] drm/i915/display/adlp: Allow PSR2 to be enabled MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit With all the recent fixes PSR2 is properly working in Alderlake-P but due to some issues that don't have software workarounds it will not be supported in display steppings older than B0. Even with this patch PSR2 will no be enabled by default in ADL-P, it still requires enable_psr2_sel_fetch to be set to true, what some of our tests does. Cc: Gwan-gyeong Mun Reviewed-by: Gwan-gyeong Mun Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20210930001409.254817-7-jose.souza@intel.com --- drivers/gpu/drm/i915/display/intel_psr.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 05b9b103a98f9..7a205fd5023bb 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -830,12 +830,8 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, return false; } - /* - * We are missing the implementation of some workarounds to enabled PSR2 - * in Alderlake_P, until ready PSR2 should be kept disabled. - */ - if (IS_ALDERLAKE_P(dev_priv)) { - drm_dbg_kms(&dev_priv->drm, "PSR2 is missing the implementation of workarounds\n"); + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) { + drm_dbg_kms(&dev_priv->drm, "PSR2 not completely functional in this stepping\n"); return false; } -- 2.30.2