kernel/linux.git/drivers/gpu/drm/amd/display/dc/dce80, branch linux-4.20.y

drm/amd/display: fix memory leak in resource pools

2018-10-09T22:03:31+00:00

[why] ddc engines were recently changed to be independently tracked from pipe count. the change was reflected in resource constructor but not in destructor. this manifests as a memory leak when pipe harvesting is enabled, since not all constructed ddc engines are freed [how] make destructor symmetric with constructor for all dcX_resource Signed-off-by: Jun Lei Reviewed-by: Aric Cyr Acked-by: Leo Li Signed-off-by: Alex Deucher

drm/amd/display: clean up encoding checks

2018-10-09T22:02:15+00:00

[Why] All ASICS we support has YCbCr support, so the check is unnecessary, the currently logic in validate output also returns true all the time, so the unneccessary logic is removed Signed-off-by: Eric Yang Reviewed-by: Tony Cheng Acked-by: Leo Li Signed-off-by: Alex Deucher

drm/amd/display: num of sw i2c/aux engines less than num of connectors

2018-09-11T03:43:18+00:00

[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 Reviewed-by: Tony Cheng Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Create new i2c resource

2018-08-27T16:11:05+00:00

[Why] I2C code did not match dc resource model and was generally unpleasant [How] Move code into new svelte dce_i2c files, replacing various i2c objects with two structs: dce_i2c_sw and dce_i2c_hw. Fully split sw and hw code paths. Remove all redundant declarations. Use address lists to distinguish between versions. Change dce80 code to newer register access macros. Signed-off-by: David Francis Reviewed-by: Tony Cheng Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Don't share clk source between DP and HDMI

2018-08-06T19:35:43+00:00

[why] Prevent clock source sharing between HDMI and DP connectors. DP shouldn't be sharing its ref clock with phy clock, which caused an issue of older ASICS booting up with multiple diplays plugged in. [how] Add an extra check that would prevent HDMI and DP sharing clk. Signed-off-by: Mikita Lipski Reviewed-by: Hersen Wu Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amd/display: flatten aux_engine and engine

2018-07-27T14:07:42+00:00

[Why] engine and aux_engine are unnecessary layers we want to remove this layer. [How] flatten engine and aux engine structs into one struct called aux_engine and remove all references to the engine struct. Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Decouple aux from i2c

2018-07-24T20:15:50+00:00

[Why] Aux engine is created from i2caux layer. We want to remove this layer and use the engine directly. [How] Decouple aux engine from i2caux. Move aux engine related code to dce folder and use dc resource pool to manage the engine. And use the engine functions directly Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Acked-by: Leo Li Signed-off-by: Alex Deucher

drm/amd/display: rename dce_disp_clk to dccg

2018-07-05T21:38:33+00:00

No functional change. Signed-off-by: Dmytro Laktyushkin Reviewed-by: Nikola Cornij Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: rename display clock block to dccg

2018-07-05T21:38:28+00:00

Signed-off-by: Dmytro Laktyushkin Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: drop dc_validate_guaranteed

2018-04-11T18:07:40+00:00

Block FP16 scaling in validate_resources codepath. Signed-off-by: Julian Parkin Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher