Commit 2d667442 authored by Gwan-gyeong Mun's avatar Gwan-gyeong Mun Committed by José Roberto de Souza
Browse files

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

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: default avatarGwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210401170237.40472-1-gwan-gyeong.mun@intel.com
parent d339ef1c

drivers/gpu/drm/i915/display/intel_psr.c

+7 −0
Original line number Diff line number Diff line
@@ -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.