LXR linux/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h

   1/*
   2 * Copyright 2018 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_DCCG_H__
  27#define __DAL_DCCG_H__
  28
  29#include "dc_types.h"
  30#include "hw_shared.h"
  31
  32enum phyd32clk_clock_source {
  33        PHYD32CLKA,
  34        PHYD32CLKB,
  35        PHYD32CLKC,
  36        PHYD32CLKD,
  37        PHYD32CLKE,
  38        PHYD32CLKF,
  39        PHYD32CLKG,
  40};
  41
  42enum physymclk_clock_source {
  43        PHYSYMCLK_FORCE_SRC_SYMCLK,    // Select symclk as source of clock which is output to PHY through DCIO.
  44        PHYSYMCLK_FORCE_SRC_PHYD18CLK, // Select phyd18clk as the source of clock which is output to PHY through DCIO.
  45        PHYSYMCLK_FORCE_SRC_PHYD32CLK, // Select phyd32clk as the source of clock which is output to PHY through DCIO.
  46};
  47
  48enum hdmistreamclk_source {
  49        REFCLK,                   // Selects REFCLK as source for hdmistreamclk.
  50        DTBCLK0,                  // Selects DTBCLK0 as source for hdmistreamclk.
  51};
  52
  53enum dentist_dispclk_change_mode {
  54        DISPCLK_CHANGE_MODE_IMMEDIATE,
  55        DISPCLK_CHANGE_MODE_RAMPING,
  56};
  57
  58struct dccg {
  59        struct dc_context *ctx;
  60        const struct dccg_funcs *funcs;
  61        int pipe_dppclk_khz[MAX_PIPES];
  62        int ref_dppclk;
  63        int dtbclk_khz[MAX_PIPES];
  64        int audio_dtbclk_khz;
  65        int ref_dtbclk_khz;
  66};
  67
  68struct dccg_funcs {
  69        void (*update_dpp_dto)(struct dccg *dccg,
  70                        int dpp_inst,
  71                        int req_dppclk);
  72        void (*get_dccg_ref_freq)(struct dccg *dccg,
  73                        unsigned int xtalin_freq_inKhz,
  74                        unsigned int *dccg_ref_freq_inKhz);
  75        void (*set_fifo_errdet_ovr_en)(struct dccg *dccg,
  76                        bool en);
  77        void (*otg_add_pixel)(struct dccg *dccg,
  78                        uint32_t otg_inst);
  79        void (*otg_drop_pixel)(struct dccg *dccg,
  80                        uint32_t otg_inst);
  81        void (*dccg_init)(struct dccg *dccg);
  82
  83        void (*set_physymclk)(
  84                        struct dccg *dccg,
  85                        int phy_inst,
  86                        enum physymclk_clock_source clk_src,
  87                        bool force_enable);
  88
  89        void (*set_dtbclk_dto)(
  90                        struct dccg *dccg,
  91                        int dtbclk_inst,
  92                        int req_dtbclk_khz,
  93                        int num_odm_segments,
  94                        const struct dc_crtc_timing *timing);
  95
  96        void (*set_audio_dtbclk_dto)(
  97                        struct dccg *dccg,
  98                        uint32_t req_audio_dtbclk_khz);
  99
 100        void (*set_dispclk_change_mode)(
 101                        struct dccg *dccg,
 102                        enum dentist_dispclk_change_mode change_mode);
 103};
 104
 105#endif //__DAL_DCCG_H__
 106