drivers/gpu/drm/msm/dsi/dsi_cfg.c

   1 /*
   2  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 and
   6  * only version 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #include "dsi_cfg.h"
  15
  16 static const char * const dsi_v2_bus_clk_names[] = {
  17         "core_mmss_clk", "iface_clk", "bus_clk",
  18 };
  19
  20 static const struct msm_dsi_config apq8064_dsi_cfg = {
  21         .io_offset = 0,
  22         .reg_cfg = {
  23                 .num = 3,
  24                 .regs = {
  25                         {"vdda", 100000, 100},  /* 1.2 V */
  26                         {"avdd", 10000, 100},   /* 3.0 V */
  27                         {"vddio", 100000, 100}, /* 1.8 V */
  28                 },
  29         },
  30         .bus_clk_names = dsi_v2_bus_clk_names,
  31         .num_bus_clks = ARRAY_SIZE(dsi_v2_bus_clk_names),
  32 };
  33
  34 static const char * const dsi_6g_bus_clk_names[] = {
  35         "mdp_core_clk", "iface_clk", "bus_clk", "core_mmss_clk",
  36 };
  37
  38 static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
  39         .io_offset = DSI_6G_REG_SHIFT,
  40         .reg_cfg = {
  41                 .num = 4,
  42                 .regs = {
  43                         {"gdsc", -1, -1},
  44                         {"vdd", 150000, 100},   /* 3.0 V */
  45                         {"vdda", 100000, 100},  /* 1.2 V */
  46                         {"vddio", 100000, 100}, /* 1.8 V */
  47                 },
  48         },
  49         .bus_clk_names = dsi_6g_bus_clk_names,
  50         .num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
  51 };
  52
  53 static const char * const dsi_8916_bus_clk_names[] = {
  54         "mdp_core_clk", "iface_clk", "bus_clk",
  55 };
  56
  57 static const struct msm_dsi_config msm8916_dsi_cfg = {
  58         .io_offset = DSI_6G_REG_SHIFT,
  59         .reg_cfg = {
  60                 .num = 3,
  61                 .regs = {
  62                         {"gdsc", -1, -1},
  63                         {"vdda", 100000, 100},  /* 1.2 V */
  64                         {"vddio", 100000, 100}, /* 1.8 V */
  65                 },
  66         },
  67         .bus_clk_names = dsi_8916_bus_clk_names,
  68         .num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
  69 };
  70
  71 static const struct msm_dsi_config msm8994_dsi_cfg = {
  72         .io_offset = DSI_6G_REG_SHIFT,
  73         .reg_cfg = {
  74                 .num = 7,
  75                 .regs = {
  76                         {"gdsc", -1, -1},
  77                         {"vdda", 100000, 100},  /* 1.25 V */
  78                         {"vddio", 100000, 100}, /* 1.8 V */
  79                         {"vcca", 10000, 100},   /* 1.0 V */
  80                         {"vdd", 100000, 100},   /* 1.8 V */
  81                         {"lab_reg", -1, -1},
  82                         {"ibb_reg", -1, -1},
  83                 },
  84         },
  85         .bus_clk_names = dsi_6g_bus_clk_names,
  86         .num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
  87 };
  88
  89 static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
  90         {MSM_DSI_VER_MAJOR_V2, MSM_DSI_V2_VER_MINOR_8064, &apq8064_dsi_cfg},
  91         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_0,
  92                                                 &msm8974_apq8084_dsi_cfg},
  93         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1,
  94                                                 &msm8974_apq8084_dsi_cfg},
  95         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1_1,
  96                                                 &msm8974_apq8084_dsi_cfg},
  97         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_2,
  98                                                 &msm8974_apq8084_dsi_cfg},
  99         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3, &msm8994_dsi_cfg},
 100         {MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3_1, &msm8916_dsi_cfg},
 101 };
 102
 103 const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
 104 {
 105         const struct msm_dsi_cfg_handler *cfg_hnd = NULL;
 106         int i;
 107
 108         for (i = ARRAY_SIZE(dsi_cfg_handlers) - 1; i >= 0; i--) {
 109                 if ((dsi_cfg_handlers[i].major == major) &&
 110                         (dsi_cfg_handlers[i].minor == minor)) {
 111                         cfg_hnd = &dsi_cfg_handlers[i];
 112                         break;
 113                 }
 114         }
 115
 116         return cfg_hnd;
 117 }
 118