linux/drivers/gpu/drm/amd
Charlene Liu e97978e812 drm/amd/display: add i2c speed arbitration for dc_i2c and hdcp_i2c
[why]
HDCP 1.4 failed on SL8800 SW w/a test driver use.

[how]
slower down the HW i2c speed when used by HW i2c.
this request: each acquired_i2c_engine setup the i2c speed needed.
and set the I2c engine for HDCP use at release_engine.

this covers SW using HW I2c engine and HDCP using HW I2c engine. for
dmcu using HW I2c engine, needs add similar logic in dmcufw.

Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-24 12:07:07 -05:00
..
acp drm: amd/acp: fix broken menu structure 2020-03-13 11:52:35 -04:00
amdgpu drm/amdgpu: implement retry fault handling for Navi 2020-11-24 12:07:01 -05:00
amdkfd drm/amdkfd: Put ACPI table after using it 2020-11-13 17:29:46 -05:00
display drm/amd/display: add i2c speed arbitration for dc_i2c and hdcp_i2c 2020-11-24 12:07:07 -05:00
include drm/amd/include/vega10_ip_offset: Mark _BASE structs as __maybe_unused 2020-11-13 17:29:46 -05:00
pm drm/amd/pm: Fix fall-through warnings for Clang 2020-11-24 12:05:50 -05:00