linux/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_panel_cntl.c

/*
 * Copyright 2021 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include "reg_helper.h"
#include "core_types.h"
#include "dc_dmub_srv.h"
#include "dcn31_panel_cntl.h"
#include "atom.h"

#define TO_DCN31_PANEL_CNTL(panel_cntl) …

#define CTX …

#define DC_LOGGER …

static bool dcn31_query_backlight_info(struct panel_cntl *panel_cntl, union dmub_rb_cmd *cmd)
{ … }

static uint32_t dcn31_get_16_bit_backlight_from_pwm(struct panel_cntl *panel_cntl)
{ … }

static uint32_t dcn31_panel_cntl_hw_init(struct panel_cntl *panel_cntl)
{ … }

static void dcn31_panel_cntl_destroy(struct panel_cntl **panel_cntl)
{ … }

static bool dcn31_is_panel_backlight_on(struct panel_cntl *panel_cntl)
{ … }

static bool dcn31_is_panel_powered_on(struct panel_cntl *panel_cntl)
{ … }

static void dcn31_store_backlight_level(struct panel_cntl *panel_cntl)
{ … }

static const struct panel_cntl_funcs dcn31_link_panel_cntl_funcs = …;

void dcn31_panel_cntl_construct(
	struct dcn31_panel_cntl *dcn31_panel_cntl,
	const struct panel_cntl_init_data *init_data)
{ … }