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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2021 Intel Corporation
*/
#ifndef __INTEL_BACKLIGHT_H__
#define __INTEL_BACKLIGHT_H__
#include <linux/types.h>
struct drm_connector_state;
struct intel_atomic_state;
struct intel_connector;
struct intel_crtc_state;
struct intel_encoder;
struct intel_panel;
enum pipe;
void intel_backlight_init_funcs(struct intel_panel *panel);
int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe);
void intel_backlight_destroy(struct intel_panel *panel);
void intel_backlight_enable(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
void intel_backlight_update(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
void intel_backlight_disable(const struct drm_connector_state *old_conn_state);
void intel_backlight_set_acpi(const struct drm_connector_state *conn_state,
u32 level, u32 max);
void intel_backlight_set_pwm_level(const struct drm_connector_state *conn_state,
u32 level);
u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 level);
u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 level);
u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val);
#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
int intel_backlight_device_register(struct intel_connector *connector);
void intel_backlight_device_unregister(struct intel_connector *connector);
#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
static inline int intel_backlight_device_register(struct intel_connector *connector)
{
return 0;
}
static inline void intel_backlight_device_unregister(struct intel_connector *connector)
{
}
#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
#endif /* __INTEL_BACKLIGHT_H__ */
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