diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 8 |
4 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 35faa286bb1c..d942c90f88f1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1567,6 +1567,7 @@ static inline int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev, u8 dev_state, bool drv_state) { return 0; } static inline int amdgpu_acpi_smart_shift_update(struct drm_device *dev, enum amdgpu_ss ss_state) { return 0; } +static inline void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps) { } #endif #if defined(CONFIG_ACPI) && defined(CONFIG_SUSPEND) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 7099ff9cf8c5..f85ace0384d2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -383,6 +383,8 @@ static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif) characteristics.min_input_signal; atif->backlight_caps.max_input_signal = characteristics.max_input_signal; + atif->backlight_caps.ac_level = characteristics.ac_level; + atif->backlight_caps.dc_level = characteristics.dc_level; out: kfree(info); return err; @@ -1268,6 +1270,8 @@ void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps) caps->caps_valid = atif->backlight_caps.caps_valid; caps->min_input_signal = atif->backlight_caps.min_input_signal; caps->max_input_signal = atif->backlight_caps.max_input_signal; + caps->ac_level = atif->backlight_caps.ac_level; + caps->dc_level = atif->backlight_caps.dc_level; } /** 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", diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index 94fc4c15d2db..d64aabad032e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -180,6 +180,14 @@ struct amdgpu_dm_backlight_caps { * @aux_support: Describes if the display supports AUX backlight. */ bool aux_support; + /** + * @ac_level: the default brightness if booted on AC + */ + u8 ac_level; + /** + * @dc_level: the default brightness if booted on DC + */ + u8 dc_level; }; /** |