linux_dsm_epyc7002/drivers/gpu/drm/amd/display/dc/dce112
Hersen Wu 0e8e4fbf8d drm/amd/display: num of sw i2c/aux engines less than num of connectors
[why]
AMD Stoney reference board, there are only 2 pipes (not include
underlay), and 3 connectors. resource creation, only
2 I2C/AUX engines are created. Within dc_link_aux_transfer, when
pin_data_en =2, refer to enengines[ddc_pin->pin_data->en] = NULL.
NULL point is referred later causing system crash.

[how]
each asic design has fixed number of ddc engines at hw side.
for each ddc engine, create its i2x/aux engine at sw side.

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-10 22:43:18 -05:00
..
dce112_compressor.c drm/amd/display: define DC_LOGGER for logger 2018-03-05 15:35:13 -05:00
dce112_compressor.h amdgpu/dc: another round of dce/dcn construct cleanups. 2017-09-29 13:02:34 -04:00
dce112_hw_sequencer.c amdgpu/dc: another round of dce/dcn construct cleanups. 2017-09-29 13:02:34 -04:00
dce112_hw_sequencer.h amdgpu/dc: another round of dce/dcn construct cleanups. 2017-09-29 13:02:34 -04:00
dce112_resource.c drm/amd/display: num of sw i2c/aux engines less than num of connectors 2018-09-10 22:43:18 -05:00
dce112_resource.h drm/amd/display: drop dc_validate_guaranteed 2018-04-11 13:07:40 -05:00
Makefile drm/amdgpu: add license to Makefiles 2017-12-04 11:47:55 -05:00