diff options
| author | David Francis <David.Francis@amd.com> | 2018-07-19 11:25:05 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-06 14:35:24 -0500 |
| commit | 620a0d27b211aa03d3f99accfdd58b88e6e0504c (patch) | |
| tree | 24f4b682dc1e04e55416ccb681602b9c272879fa /drivers/gpu/drm/amd/display/dc/core | |
| parent | 0301ccbaf67d3d9aea97156c5eb85233bb5a5178 (diff) | |
drm/amd/display: Implement backlight_ops.get_brightness
[Why]
This hook that is supposed to read the actual backlight value
is used in a few places throughout the kernel to setup or force
update on backlight
[How]
Create a dc function that calls the existing abm function, and
call that function from amdgpu
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index ce65b4d5062e..9a6448e2089c 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2026,6 +2026,15 @@ enum dc_status dc_link_validate_mode_timing( return DC_OK; } +int dc_link_get_backlight_level(const struct dc_link *link) +{ + struct abm *abm = link->ctx->dc->res_pool->abm; + + if (abm == NULL || abm->funcs->get_current_backlight_8_bit == NULL) + return DC_ERROR_UNEXPECTED; + + return (int) abm->funcs->get_current_backlight_8_bit(abm); +} bool dc_link_set_backlight_level(const struct dc_link *link, uint32_t level, uint32_t frame_ramp, const struct dc_stream_state *stream) |