1/*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#ifndef __DAL_HW_DDC_H__
27#define __DAL_HW_DDC_H__
28
29#include "ddc_regs.h"
30
31struct hw_ddc {
32 struct hw_gpio base;
33 const struct ddc_registers *regs;
34 const struct ddc_sh_mask *shifts;
35 const struct ddc_sh_mask *masks;
36};
37
38#define HW_DDC_FROM_BASE(hw_gpio) \
39 container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_ddc, base)
40
41void dal_hw_ddc_init(
42 struct hw_ddc **hw_ddc,
43 struct dc_context *ctx,
44 enum gpio_id id,
45 uint32_t en);
46
47struct hw_gpio_pin *dal_hw_ddc_get_pin(struct gpio *gpio);
48
49#endif
50

source code of linux/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.h