diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 448932ac06fb..a2c098f1b07c 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -77,6 +77,7 @@ #include <linux/types.h> #include <linux/pm_runtime.h> #include <linux/pci.h> +#include <linux/power_supply.h> #include <linux/firmware.h> #include <linux/component.h> #include <linux/dmi.h> @@ -4571,6 +4572,7 @@ amdgpu_dm_register_backlight_device(struct amdgpu_dm_connector *aconnector) struct drm_device *drm = aconnector->base.dev; struct amdgpu_display_manager *dm = &drm_to_adev(drm)->dm; struct backlight_properties props = { 0 }; + struct amdgpu_dm_backlight_caps caps = { 0 }; char bl_name[16]; if (aconnector->bl_idx == -1) @@ -4583,8 +4585,16 @@ amdgpu_dm_register_backlight_device(struct amdgpu_dm_connector *aconnector) return; } + amdgpu_acpi_get_backlight_caps(&caps); + if (caps.caps_valid) { + if (power_supply_is_system_supplied() > 0) + props.brightness = caps.ac_level; + else + props.brightness = caps.dc_level; + } else + props.brightness = AMDGPU_MAX_BL_LEVEL; + props.max_brightness = AMDGPU_MAX_BL_LEVEL; - props.brightness = AMDGPU_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d", |