1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2019 Intel Corporation
 4 */
 5
 6#ifndef __INTEL_PANEL_H__
 7#define __INTEL_PANEL_H__
 8
 9#include <linux/types.h>
10
11#include "intel_display.h"
12
13struct drm_connector;
14struct drm_connector_state;
15struct drm_display_mode;
16struct intel_connector;
17struct intel_crtc;
18struct intel_crtc_state;
19struct intel_encoder;
20struct intel_panel;
21
22int intel_panel_init(struct intel_panel *panel,
23		     struct drm_display_mode *fixed_mode,
24		     struct drm_display_mode *downclock_mode);
25void intel_panel_fini(struct intel_panel *panel);
26enum drm_connector_status
27intel_panel_detect(struct drm_connector *connector, bool force);
28void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
29			    struct drm_display_mode *adjusted_mode);
30int intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
31			    const struct drm_connector_state *conn_state);
32int intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
33			     const struct drm_connector_state *conn_state);
34void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
35				    u32 level, u32 max);
36int intel_panel_setup_backlight(struct drm_connector *connector,
37				enum pipe pipe);
38void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
39				  const struct drm_connector_state *conn_state);
40void intel_panel_update_backlight(struct intel_atomic_state *state,
41				  struct intel_encoder *encoder,
42				  const struct intel_crtc_state *crtc_state,
43				  const struct drm_connector_state *conn_state);
44void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
45struct drm_display_mode *
46intel_panel_edid_downclock_mode(struct intel_connector *connector,
47				const struct drm_display_mode *fixed_mode);
48struct drm_display_mode *
49intel_panel_edid_fixed_mode(struct intel_connector *connector);
50struct drm_display_mode *
51intel_panel_vbt_fixed_mode(struct intel_connector *connector);
52void intel_panel_set_pwm_level(const struct drm_connector_state *conn_state, u32 level);
53u32 intel_panel_invert_pwm_level(struct intel_connector *connector, u32 level);
54u32 intel_panel_backlight_level_to_pwm(struct intel_connector *connector, u32 level);
55u32 intel_panel_backlight_level_from_pwm(struct intel_connector *connector, u32 val);
56
57#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
58int intel_backlight_device_register(struct intel_connector *connector);
59void intel_backlight_device_unregister(struct intel_connector *connector);
60#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
61static inline int intel_backlight_device_register(struct intel_connector *connector)
62{
63	return 0;
64}
65static inline void intel_backlight_device_unregister(struct intel_connector *connector)
66{
67}
68#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
69
70#endif /* __INTEL_PANEL_H__ */