LXR linux/drivers/gpu/drm/amd/display/dc/gpio/hw

   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_HPD_H__
  27#define __DAL_HW_HPD_H__
  28
  29#include "hpd_regs.h"
  30
  31struct hw_hpd {
  32        struct hw_gpio base;
  33        const struct hpd_registers *regs;
  34        const struct hpd_sh_mask *shifts;
  35        const struct hpd_sh_mask *masks;
  36};
  37
  38#define HW_HPD_FROM_BASE(hw_gpio) \
  39        container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_hpd, base)
  40
  41void dal_hw_hpd_init(
  42        struct hw_hpd **hw_hpd,
  43        struct dc_context *ctx,
  44        enum gpio_id id,
  45        uint32_t en);
  46
  47struct hw_gpio_pin *dal_hw_hpd_get_pin(struct gpio *gpio);
  48
  49#endif
  50