mirror_ubuntu-kernels/drivers/gpu/drm/amd/display
Michael Strauss 71fb7b2801 drm/amd/display: Passive DP->HDMI dongle detection fix
[WHY]
i2c_read is called to differentiate passive DP->HDMI and DP->DVI-D dongles
The call is expected to fail in DVI-D case but pass in HDMI case
Some HDMI dongles have a chance to fail as well, causing misdetection as DVI-D

[HOW]
Retry i2c_read to ensure failed result is valid

Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-25 16:50:09 -04:00
..
amdgpu_dm drm/amd/display: Enable PSR 2019-10-25 16:50:08 -04:00
dc drm/amd/display: Passive DP->HDMI dongle detection fix 2019-10-25 16:50:09 -04:00
include drm/amd/display: add new active dongle to existent w/a 2019-10-10 19:33:37 -05:00
modules drm/amd/display: Don't use optimized gamma22 with eetf 2019-10-25 16:50:07 -04:00
Kconfig drm/amd: Fix Kconfig indentation 2019-10-07 15:11:17 -05:00
Makefile drm/amd/display: Add HDCP module 2019-10-03 09:10:58 -05:00
TODO drm/amd/display: Convert remaining loggers off dc_logger 2018-07-13 14:48:42 -05:00