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| author |   Dave Airlie <airlied@redhat.com> | 2021-09-17 05:58:55 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2021-09-17 05:58:55 +1000 |
| commit | 109f7ea9aedce437b4b7737ab60bfea65d9dbdd3 (patch) | |
| tree | 97e787fe9fff442d8a93f612975ee88bfc2af295 /drivers/gpu/drm/amd/display/dc/core/dc_link.c | |
| parent | Merge tag 'drm-intel-fixes-2021-09-16' of ssh://git.freedesktop.org/git/drm/drm-intel into drm-fixes (diff) | |
| parent | drm/amdgpu/display: add a proper license to dc_link_dp.c (diff) | |
| download | linux-dev-109f7ea9aedce437b4b7737ab60bfea65d9dbdd3.tar.xz linux-dev-109f7ea9aedce437b4b7737ab60bfea65d9dbdd3.zip | |
Merge tag 'amd-drm-fixes-5.15-2021-09-16' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.15-2021-09-16:
amdgpu:
- UBSAN fix
- Powerplay table update fix
- Fix use after free in BO moves
- Debugfs init fixes
- vblank workqueue fixes for headless devices
- FPU fixes
- sysfs_emit fixes
- SMU updates for cyan skillfish
- Backlight fixes when DMCU is not initialized
- DP MST fixes
- HDCP compliance fix
- Link training fix
- Runtime pm fix
- Panel orientation fixes
- Display GPUVM fix for yellow carp
- Add missing license
amdkfd:
- Drop PCI atomics requirement if proper firmware is available
- Suspend/resume fixes for IOMMUv2 cases
radeon:
- AGP fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916140611.59816-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 16 |
1 files changed, 12 insertions, 4 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 8bd7f42a8053..1e44b13c1c7d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2586,13 +2586,21 @@ static struct abm *get_abm_from_stream_res(const struct dc_link *link) int dc_link_get_backlight_level(const struct dc_link *link) { - struct abm *abm = get_abm_from_stream_res(link); + struct panel_cntl *panel_cntl = link->panel_cntl; + struct dc *dc = link->ctx->dc; + struct dmcu *dmcu = dc->res_pool->dmcu; + bool fw_set_brightness = true; - if (abm == NULL || abm->funcs->get_current_backlight == NULL) - return DC_ERROR_UNEXPECTED; + if (dmcu) + fw_set_brightness = dmcu->funcs->is_dmcu_initialized(dmcu); - return (int) abm->funcs->get_current_backlight(abm); + if (!fw_set_brightness && panel_cntl->funcs->get_current_backlight) + return panel_cntl->funcs->get_current_backlight(panel_cntl); + else if (abm != NULL && abm->funcs->get_current_backlight != NULL) + return (int) abm->funcs->get_current_backlight(abm); + else + return DC_ERROR_UNEXPECTED; } int dc_link_get_target_backlight_pwm(const struct dc_link *link) |