intel_backlight.h (1890B)
1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright © 2021 Intel Corporation 4 */ 5 6#ifndef __INTEL_BACKLIGHT_H__ 7#define __INTEL_BACKLIGHT_H__ 8 9#include <linux/types.h> 10 11struct drm_connector_state; 12struct intel_atomic_state; 13struct intel_connector; 14struct intel_crtc_state; 15struct intel_encoder; 16struct intel_panel; 17enum pipe; 18 19void intel_backlight_init_funcs(struct intel_panel *panel); 20int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe); 21void intel_backlight_destroy(struct intel_panel *panel); 22 23void intel_backlight_enable(const struct intel_crtc_state *crtc_state, 24 const struct drm_connector_state *conn_state); 25void intel_backlight_update(struct intel_atomic_state *state, 26 struct intel_encoder *encoder, 27 const struct intel_crtc_state *crtc_state, 28 const struct drm_connector_state *conn_state); 29void intel_backlight_disable(const struct drm_connector_state *old_conn_state); 30 31void intel_backlight_set_acpi(const struct drm_connector_state *conn_state, 32 u32 level, u32 max); 33void intel_backlight_set_pwm_level(const struct drm_connector_state *conn_state, 34 u32 level); 35u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 level); 36u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 level); 37u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val); 38 39#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE) 40int intel_backlight_device_register(struct intel_connector *connector); 41void intel_backlight_device_unregister(struct intel_connector *connector); 42#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */ 43static inline int intel_backlight_device_register(struct intel_connector *connector) 44{ 45 return 0; 46} 47static inline void intel_backlight_device_unregister(struct intel_connector *connector) 48{ 49} 50#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */ 51 52#endif /* __INTEL_BACKLIGHT_H__ */