From: José Roberto de Souza Date: Wed, 7 Oct 2020 19:52:36 +0000 (-0700) Subject: drm/i915/display: Ignore IGNORE_PSR2_HW_TRACKING for platforms without sel fetch X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=90a24b9d737c54b3a20d1a3d0a2e2cd872a442ee;p=linux.git drm/i915/display: Ignore IGNORE_PSR2_HW_TRACKING for platforms without sel fetch For platforms without selective fetch this register is reserved so do not write 0 to it. Cc: Gwan-gyeong Mun Cc: Ville Syrjälä Reviewed-by: Rodrigo Vivi Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20201007195238.53955-1-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 8a9d0bdde1bfb..4e09ae61d4aa6 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -942,7 +942,7 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp, intel_de_write(dev_priv, EXITLINE(cpu_transcoder), val); } - if (HAS_PSR_HW_TRACKING(dev_priv)) + if (HAS_PSR_HW_TRACKING(dev_priv) && HAS_PSR2_SEL_FETCH(dev_priv)) intel_de_rmw(dev_priv, CHICKEN_PAR1_1, IGNORE_PSR2_HW_TRACKING, dev_priv->psr.psr2_sel_fetch_enabled ? IGNORE_PSR2_HW_TRACKING : 0);