diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_vbt_defs.h | 6 |
4 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 02c619e7af05..ff6aaf0c4e1e 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1492,6 +1492,7 @@ struct intel_vbt_data { bool present; bool active_low_pwm; u8 min_brightness; /* min_brightness/255 of max */ + enum intel_backlight_type type; } backlight; /* MIPI DSI */ diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index dbbd59171722..81518116e00d 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -318,6 +318,15 @@ parse_lfp_backlight(struct drm_i915_private *dev_priv, return; } + dev_priv->vbt.backlight.type = INTEL_BACKLIGHT_DISPLAY_DDI; + if (bdb->version >= 191 && + get_blocksize(backlight_data) >= sizeof(*backlight_data)) { + const struct bdb_lfp_backlight_control_method *method; + + method = &backlight_data->backlight_control[panel_type]; + dev_priv->vbt.backlight.type = method->type; + } + dev_priv->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz; dev_priv->vbt.backlight.active_low_pwm = entry->active_low_pwm; dev_priv->vbt.backlight.min_brightness = entry->min_brightness; diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 149c3226e895..8405b5a367d7 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -30,6 +30,14 @@ #ifndef _INTEL_BIOS_H_ #define _INTEL_BIOS_H_ +enum intel_backlight_type { + INTEL_BACKLIGHT_PMIC, + INTEL_BACKLIGHT_LPSS, + INTEL_BACKLIGHT_DISPLAY_DDI, + INTEL_BACKLIGHT_DSI_DCS, + INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE, +}; + struct edp_power_seq { u16 t1_t3; u16 t8; diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h index 9ff1e960d617..a4a42f254c35 100644 --- a/drivers/gpu/drm/i915/intel_vbt_defs.h +++ b/drivers/gpu/drm/i915/intel_vbt_defs.h @@ -446,10 +446,16 @@ struct bdb_lfp_backlight_data_entry { u8 obsolete3; } __packed; +struct bdb_lfp_backlight_control_method { + u8 type:4; + u8 controller:4; +} __packed; + struct bdb_lfp_backlight_data { u8 entry_size; struct bdb_lfp_backlight_data_entry data[16]; u8 level[16]; + struct bdb_lfp_backlight_control_method backlight_control[16]; } __packed; struct aimdb_header { |