linux/drivers/gpu/drm/amd/display
Cruise fa3c5a8edc drm/amd/display: Not fallback if link BW is smaller than req BW
[Why]
When the link BW is smaller than the request BW,
the DP LT just kept running and fallback to lower link config.
DP LT just aborted if is_hpd_pending bit is high.
But is_hpd_pending bit indicates a new HPD event received.
It doesn't mean the HPD is low.

[How]
Abort the DP LT if the link BW is smaller than the request BW.
Remove checking is_hpd_pending bit in DP LT.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Cruise <cruise.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-20 16:20:25 -04:00
..
amdgpu_dm drm/amd/display: Remove redundant idle optimization check 2024-05-20 16:20:25 -04:00
dc drm/amd/display: Not fallback if link BW is smaller than req BW 2024-05-20 16:20:25 -04:00
dmub drm/amd/display: Read default boot options 2024-05-13 15:47:59 -04:00
include drm/amd/display: Refactor dcn401_update_clocks 2024-05-13 15:47:46 -04:00
modules drm/amd/display: Add array index check for hdcp ddc access 2024-05-02 16:18:17 -04:00
Kconfig drm/amd/display: Fix invalid Copyright notice 2024-05-02 16:18:16 -04:00
Makefile drm/amd/display: Refactor HUBP into component folder. 2024-05-08 15:17:03 -04:00