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drm/i915/display: Ignore IGNORE_PSR2_HW_TRACKING for platforms without sel fetch

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For platforms without selective fetch this register is reserved so
do not write 0 to it.

Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201007195238.53955-1-jose.souza@intel.com
This commit is contained in:
José Roberto de Souza 2020-10-07 12:52:36 -07:00
parent a23fe79ae5
commit 90a24b9d73
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/display/intel_psr.c
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@ -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);