linux/drivers/gpu
Michael Strauss 99d5f18ceb drm/amd/display: Passive DP->HDMI dongle detection fix
[ Upstream commit bc2fde42e2 ]

[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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-12 19:21:15 +01:00
..
drm drm/amd/display: Passive DP->HDMI dongle detection fix 2019-11-12 19:21:15 +01:00
host1x gpu: host1x: Increase maximum DMA segment size 2019-07-31 07:26:59 +02:00
ipu-v3 gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM 2019-07-26 09:14:29 +02:00
vga vga_switcheroo: Fix missing gpu_bound call at audio client registration 2018-11-13 11:09:00 -08:00
Makefile