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drm/i915/display/psr: Disable DC3CO when the PSR2 is used

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Due to the changed sequence of activating/deactivating DC3CO, disable
DC3CO until the changed dc3co activating/deactivating sequence is applied.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/3134
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210401170237.40472-1-gwan-gyeong.mun@intel.com
This commit is contained in:
Gwan-gyeong Mun 2021-04-01 20:02:37 +03:00 committed by José Roberto de Souza
parent d339ef1c4d
commit 2d667442db
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/i915/display/intel_psr.c
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@ -654,6 +654,13 @@ tgl_dc3co_exitline_compute_config(struct intel_dp *intel_dp,
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
u32 exit_scanlines;
/*
* FIXME: Due to the changed sequence of activating/deactivating DC3CO,
* disable DC3CO until the changed dc3co activating/deactivating sequence
* is applied. B.Specs:49196
*/
return;
/*
* DMC's DC3CO exit mechanism has an issue with Selective Fecth
* TODO: when the issue is addressed, this restriction should be removed.