github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 23:52:08 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/display/xelpd: Implement Wa_14013475917

Browse Source 
This workaround requires that VIDEO_DIP_ENABLE_VSC_HSW is never set
with PSR.

BSpec: 54369
BSpec: 54077
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210418002126.87882-5-jose.souza@intel.com
This commit is contained in:
José Roberto de Souza 2021-04-17 17:21:26 -07:00
parent a37937cd8e
commit 09df8ba5c1
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/i915/display/intel_hdmi.c
View File

@ -532,6 +532,11 @@ void hsw_write_infoframe(struct intel_encoder *encoder,
hsw_dip_data_reg(dev_priv, cpu_transcoder, type, i >> 2),
0);
/* Wa_14013475917 */
if (DISPLAY_VER(dev_priv) == 13 && crtc_state->has_psr &&
type == DP_SDP_VSC)
return;
val |= hsw_infoframe_enable(type);
intel_de_write(dev_priv, ctl_reg, val);
intel_de_posting_read(dev_priv, ctl_reg);