iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "drm/radeon: fix DP link training issue with second 4K monitor"

Browse Source 
This reverts commit 1a738347df2ee4977459a8776fe2c62196bdcb1b.

It caused at least some Kaveri laptops to incorrectly report DisplayPort
connectors as connected.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97857
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2016-10-24 16:52:20 +09:00 committed by Alex Deucher
parent 4560738a8e
commit 9dc79965b2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/radeon/radeon_dp_auxch.c
View File

@ -105,7 +105,7 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg
tmp &= AUX_HPD_SEL(0x7);
tmp |= AUX_HPD_SEL(chan->rec.hpd);
tmp |= AUX_EN | AUX_LS_READ_EN | AUX_HPD_DISCON(0x1);
tmp |= AUX_EN | AUX_LS_READ_EN;
WREG32(AUX_CONTROL + aux_offset[instance], tmp);