kernel/linux.git/drivers/gpu/drm/amd/display/include, branch v5.10.258

drm/amd/display: Read EDID from VBIOS embedded panel info

2026-06-01T15:29:46+00:00

[ Upstream commit 9ea16f64189bf7b6ba50fc7f0325b3c1f836d105 ] Some board manufacturers hardcode the EDID for the embedded panel in the VBIOS. This EDID should be used when the panel doesn't have a DDC. For reference, see the legacy non-DC display code: amdgpu_atombios_encoder_get_lcd_info() This is necessary to support embedded connectors without DDC. Fixes: 4562236b3bc0 ("drm/amd/dc: Add dc display driver (v2)") Link: https://gitlab.freedesktop.org/drm/amd/-/work_items/5192 Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher (cherry picked from commit eb105e63b474c11ef6a84a1c6b18100d851ff364) Signed-off-by: Sasha Levin

drm/amd/display/dc/gpio/gpio_service: Pass around correct dce_{version, environment} types

2022-05-15T18:00:09+00:00

commit 353f7f3a9dd5fd2833b6462bac89ec1654c9c3aa upstream. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c: In function ‘dal_gpio_service_create’: drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:71:4: warning: implicit conversion from ‘enum dce_version’ to ‘enum dce_environment’ [-Wenum-conversion] drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:77:4: warning: implicit conversion from ‘enum dce_version’ to ‘enum dce_environment’ [-Wenum-conversion] Cc: Harry Wentland Cc: Leo Li Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher Cc: Nathan Chancellor Signed-off-by: Greg Kroah-Hartman

drm/amdgpu/display: remove DRM_AMD_DC_GREEN_SARDINE

2020-11-04T13:43:50+00:00

No need for a separate config option at this point. Reviewed-by: Luben Tuikov Signed-off-by: Alex Deucher

drm/amd/display: Add green_sardine support to DC

2020-11-04T13:40:42+00:00

Display Core support for green_sardine Signed-off-by: Roman Li Acked-by: Hersen Wu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd/display: get socBB from VBIOS

2020-09-15T21:52:42+00:00

[why] Some SOC BB paramters may vary per SKU, and it does not make sense for driver to hardcode these values [how] Parse the values from VBIOS if available, and use them if valid Signed-off-by: Jun Lei Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: add option to override cr training pattern

2020-09-15T21:52:40+00:00

Signed-off-by: Wenjing Liu Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: fix pow() crashing when given base 0

2020-08-17T18:08:59+00:00

[Why&How] pow(a,x) is implemented as exp(x*log(a)). log(0) will crash. So return 0^x = 0, unless x=0, convention seems to be 0^0 = 1. Cc: stable@vger.kernel.org Signed-off-by: Krunoslav Kovac Reviewed-by: Anthony Koo Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Call DMUB for eDP power control

2020-08-17T18:07:08+00:00

[Why] If DMUB is used, LVTMA VBIOS call can be used to control eDP instead of tranditional transmitter control. Interface is agreed with VBIOS for eDP to use this new path to program LVTMA registers. [How] Create DAL interface to send DMUB command for LVTMA as currently implemented in VBIOS. Signed-off-by: Chris Park Reviewed-by: Nicholas Kazlauskas Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: add asics info for SI parts

2020-07-27T20:45:44+00:00

[Why] Asic info for SI parts need to be preliminarly added [How] Asics info retrieved from si_id.h in https://github.com/GPUOpen-Tools/CodeXL Tree path: ./CodeXL/Components/ShaderAnalyzer/AMDTBackEnd/Include/Common/asic_reg/si_id.h Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Mauro Rossi

drm/amd/display: Check lane status again after link training done

2020-07-27T20:23:39+00:00

[Why] Some monitors could suffer symbol unlock but cannot send HPD IRQ to notic source device to handle link loss. This makes monitor stuck in abnormal status and causes black screen. [How] According to the suggestion from scalar vendor, to check lane status again after link training done. That can improve the comaptibility from current production monitors. Signed-off-by: Martin Tsai Reviewed-by: Aric Cyr Acked-by: Eryk Brol Signed-off-by: Alex Deucher