1 /* 2 * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. 3 * 4 * Copyright (c) 2016 Samsung Electronics Co., Ltd. 5 * Donghwa Lee <dh09.lee@samsung.com> 6 * Hyungwon Hwang <human.hwang@samsung.com> 7 * Hoegeun Kwon <hoegeun.kwon@samsung.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <drm/drmP.h> 15 #include <drm/drm_mipi_dsi.h> 16 #include <drm/drm_panel.h> 17 #include <linux/backlight.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/regulator/consumer.h> 20 21 #define S6E3HA2_MIN_BRIGHTNESS 0 22 #define S6E3HA2_MAX_BRIGHTNESS 100 23 #define S6E3HA2_DEFAULT_BRIGHTNESS 80 24 25 #define S6E3HA2_NUM_GAMMA_STEPS 46 26 #define S6E3HA2_GAMMA_CMD_CNT 35 27 #define S6E3HA2_VINT_STATUS_MAX 10 28 29 static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { 30 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, 31 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, 32 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, 33 0x00, 0x00 }, 34 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, 35 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, 36 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, 37 0x00, 0x00 }, 38 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 39 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, 40 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, 41 0x00, 0x00 }, 42 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 43 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, 44 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, 45 0x00, 0x00 }, 46 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, 47 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, 48 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, 49 0x00, 0x00 }, 50 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 51 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, 52 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, 53 0x00, 0x00 }, 54 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 55 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, 56 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, 57 0x00, 0x00 }, 58 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 59 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, 60 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 61 0x00, 0x00 }, 62 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 63 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, 64 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 65 0x00, 0x00 }, 66 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 67 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, 68 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, 69 0x00, 0x00 }, 70 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 71 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, 72 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, 73 0x00, 0x00 }, 74 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 75 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, 76 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, 77 0x00, 0x00 }, 78 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 79 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, 80 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, 81 0x00, 0x00 }, 82 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 83 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 84 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, 85 0x00, 0x00 }, 86 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 87 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 88 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00, 89 0x00, 0x00 }, 90 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 91 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b, 92 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 93 0x00, 0x00 }, 94 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 95 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, 96 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 97 0x00, 0x00 }, 98 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 99 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, 100 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00, 101 0x00, 0x00 }, 102 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 103 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d, 104 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 105 0x00, 0x00 }, 106 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 107 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c, 108 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 109 0x00, 0x00 }, 110 { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, 111 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, 112 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 113 0x00, 0x00 }, 114 { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, 115 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, 116 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 117 0x00, 0x00 }, 118 { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, 119 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, 120 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 121 0x00, 0x00 }, 122 { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, 123 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, 124 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, 125 0x00, 0x00 }, 126 { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, 127 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, 128 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 129 0x00, 0x00 }, 130 { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, 131 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, 132 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 133 0x00, 0x00 }, 134 { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, 135 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, 136 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 137 0x00, 0x00 }, 138 { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, 139 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, 140 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 141 0x00, 0x00 }, 142 { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, 143 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, 144 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, 145 0x00, 0x00 }, 146 { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, 147 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, 148 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 149 0x00, 0x00 }, 150 { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, 151 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, 152 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, 153 0x00, 0x00 }, 154 { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, 155 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, 156 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 157 0x00, 0x00 }, 158 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 159 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, 160 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 161 0x00, 0x00 }, 162 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, 163 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 164 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 165 0x00, 0x00 }, 166 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 167 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 168 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 169 0x00, 0x00 }, 170 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 171 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, 172 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 173 0x00, 0x00 }, 174 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 175 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, 176 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 177 0x00, 0x00 }, 178 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 179 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, 180 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 181 0x00, 0x00 }, 182 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, 183 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, 184 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, 185 0x00, 0x00 }, 186 { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, 187 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, 188 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, 189 0x00, 0x00 }, 190 { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, 191 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, 192 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 193 0x00, 0x00 }, 194 { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, 195 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, 196 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 197 0x00, 0x00 }, 198 { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, 199 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, 200 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 201 0x00, 0x00 }, 202 { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, 203 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 204 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 205 0x00, 0x00 }, 206 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 207 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 208 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 209 0x00, 0x00 }, 210 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 211 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 212 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 213 0x00, 0x00 } 214 }; 215 216 unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { 217 0x18, 0x19, 0x1a, 0x1b, 0x1c, 218 0x1d, 0x1e, 0x1f, 0x20, 0x21 219 }; 220 221 struct s6e3ha2 { 222 struct device *dev; 223 struct drm_panel panel; 224 struct backlight_device *bl_dev; 225 226 struct regulator_bulk_data supplies[2]; 227 struct gpio_desc *reset_gpio; 228 struct gpio_desc *enable_gpio; 229 }; 230 231 static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) 232 { 233 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 234 235 return mipi_dsi_dcs_write_buffer(dsi, data, len); 236 } 237 238 #define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ 239 static const u8 d[] = { seq }; \ 240 int ret; \ 241 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ 242 if (ret < 0) \ 243 return ret; \ 244 } while (0) 245 246 #define s6e3ha2_call_write_func(ret, func) do { \ 247 ret = (func); \ 248 if (ret < 0) \ 249 return ret; \ 250 } while (0) 251 252 static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) 253 { 254 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); 255 return 0; 256 } 257 258 static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) 259 { 260 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); 261 return 0; 262 } 263 264 static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) 265 { 266 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); 267 return 0; 268 } 269 270 static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) 271 { 272 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); 273 return 0; 274 } 275 276 static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) 277 { 278 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); 279 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); 280 return 0; 281 } 282 283 static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) 284 { 285 s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); 286 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); 287 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); 288 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); 289 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, 0x40, 290 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); 291 return 0; 292 } 293 294 static int s6e3ha2_aor_control(struct s6e3ha2 *ctx) 295 { 296 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); 297 return 0; 298 } 299 300 static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) 301 { 302 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); 303 return 0; 304 } 305 306 static int s6e3ha2_acl_off(struct s6e3ha2 *ctx) 307 { 308 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); 309 return 0; 310 } 311 312 static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) 313 { 314 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); 315 return 0; 316 } 317 318 static int s6e3ha2_test_global(struct s6e3ha2 *ctx) 319 { 320 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); 321 return 0; 322 } 323 324 static int s6e3ha2_test(struct s6e3ha2 *ctx) 325 { 326 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); 327 return 0; 328 } 329 330 static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) 331 { 332 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02, 333 0x16, 0x02, 0x16); 334 return 0; 335 } 336 337 static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx) 338 { 339 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); 340 return 0; 341 } 342 343 static int s6e3ha2_poc_global(struct s6e3ha2 *ctx) 344 { 345 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); 346 return 0; 347 } 348 349 static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx) 350 { 351 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); 352 return 0; 353 } 354 355 static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) 356 { 357 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); 358 return 0; 359 } 360 361 static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) 362 { 363 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); 364 return 0; 365 } 366 367 static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx) 368 { 369 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); 370 return 0; 371 } 372 373 static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) 374 { 375 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); 376 return 0; 377 } 378 379 static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx) 380 { 381 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); 382 ndelay(100); /* need for 100ns delay */ 383 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); 384 return 0; 385 } 386 387 static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) 388 { 389 return bl_dev->props.brightness; 390 } 391 392 static int s6e3ha2_set_vint(struct s6e3ha2 *ctx) 393 { 394 struct backlight_device *bl_dev = ctx->bl_dev; 395 unsigned int brightness = bl_dev->props.brightness; 396 unsigned char data[] = { 0xf4, 0x8b, 397 vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / 398 S6E3HA2_MAX_BRIGHTNESS] }; 399 400 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); 401 } 402 403 static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) 404 { 405 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / 406 S6E3HA2_MAX_BRIGHTNESS; 407 } 408 409 static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) 410 { 411 struct backlight_device *bl_dev = ctx->bl_dev; 412 unsigned int index = s6e3ha2_get_brightness_index(brightness); 413 u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; 414 int ret; 415 416 memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); 417 s6e3ha2_call_write_func(ret, 418 s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data))); 419 420 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 421 bl_dev->props.brightness = brightness; 422 423 return 0; 424 } 425 426 static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) 427 { 428 struct s6e3ha2 *ctx = bl_get_data(bl_dev); 429 unsigned int brightness = bl_dev->props.brightness; 430 int ret; 431 432 if (brightness < S6E3HA2_MIN_BRIGHTNESS || 433 brightness > bl_dev->props.max_brightness) { 434 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); 435 return -EINVAL; 436 } 437 438 if (bl_dev->props.power > FB_BLANK_NORMAL) 439 return -EPERM; 440 441 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 442 s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness)); 443 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 444 s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx)); 445 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 446 447 return 0; 448 } 449 450 static const struct backlight_ops s6e3ha2_bl_ops = { 451 .get_brightness = s6e3ha2_get_brightness, 452 .update_status = s6e3ha2_set_brightness, 453 }; 454 455 static int s6e3ha2_panel_init(struct s6e3ha2 *ctx) 456 { 457 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 458 int ret; 459 460 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi)); 461 usleep_range(5000, 6000); 462 463 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 464 s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx)); 465 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 466 s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx)); 467 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 468 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 469 470 return 0; 471 } 472 473 static int s6e3ha2_power_off(struct s6e3ha2 *ctx) 474 { 475 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 476 } 477 478 static int s6e3ha2_disable(struct drm_panel *panel) 479 { 480 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 481 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 482 int ret; 483 484 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi)); 485 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi)); 486 487 msleep(40); 488 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 489 490 return 0; 491 } 492 493 static int s6e3ha2_unprepare(struct drm_panel *panel) 494 { 495 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 496 497 return s6e3ha2_power_off(ctx); 498 } 499 500 static int s6e3ha2_power_on(struct s6e3ha2 *ctx) 501 { 502 int ret; 503 504 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 505 if (ret < 0) 506 return ret; 507 508 msleep(120); 509 510 gpiod_set_value(ctx->enable_gpio, 0); 511 usleep_range(5000, 6000); 512 gpiod_set_value(ctx->enable_gpio, 1); 513 514 gpiod_set_value(ctx->reset_gpio, 1); 515 usleep_range(5000, 6000); 516 gpiod_set_value(ctx->reset_gpio, 0); 517 usleep_range(5000, 6000); 518 519 return 0; 520 } 521 static int s6e3ha2_prepare(struct drm_panel *panel) 522 { 523 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 524 int ret; 525 526 ret = s6e3ha2_power_on(ctx); 527 if (ret < 0) 528 return ret; 529 530 ret = s6e3ha2_panel_init(ctx); 531 if (ret < 0) 532 goto err; 533 534 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 535 536 return 0; 537 538 err: 539 s6e3ha2_power_off(ctx); 540 return ret; 541 } 542 543 static int s6e3ha2_enable(struct drm_panel *panel) 544 { 545 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 546 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 547 int ret; 548 549 /* common setting */ 550 s6e3ha2_call_write_func(ret, 551 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK)); 552 553 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 554 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 555 s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx)); 556 s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx)); 557 s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx)); 558 s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx)); 559 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 560 561 /* pcd setting off for TB */ 562 s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx)); 563 s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx)); 564 s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx)); 565 566 /* brightness setting */ 567 s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev)); 568 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 569 s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx)); 570 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 571 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx)); 572 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx)); 573 s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx)); 574 575 /* elvss temp compensation */ 576 s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx)); 577 s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx)); 578 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 579 580 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi)); 581 ctx->bl_dev->props.power = FB_BLANK_UNBLANK; 582 583 return 0; 584 } 585 586 static const struct drm_display_mode default_mode = { 587 .clock = 222372, 588 .hdisplay = 1440, 589 .hsync_start = 1440 + 1, 590 .hsync_end = 1440 + 1 + 1, 591 .htotal = 1440 + 1 + 1 + 1, 592 .vdisplay = 2560, 593 .vsync_start = 2560 + 1, 594 .vsync_end = 2560 + 1 + 1, 595 .vtotal = 2560 + 1 + 1 + 15, 596 .vrefresh = 60, 597 .flags = 0, 598 }; 599 600 static int s6e3ha2_get_modes(struct drm_panel *panel) 601 { 602 struct drm_connector *connector = panel->connector; 603 struct drm_display_mode *mode; 604 605 mode = drm_mode_duplicate(panel->drm, &default_mode); 606 if (!mode) { 607 DRM_ERROR("failed to add mode %ux%ux@%u\n", 608 default_mode.hdisplay, default_mode.vdisplay, 609 default_mode.vrefresh); 610 return -ENOMEM; 611 } 612 613 drm_mode_set_name(mode); 614 615 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 616 drm_mode_probed_add(connector, mode); 617 618 connector->display_info.width_mm = 71; 619 connector->display_info.height_mm = 125; 620 621 return 1; 622 } 623 624 static const struct drm_panel_funcs s6e3ha2_drm_funcs = { 625 .disable = s6e3ha2_disable, 626 .unprepare = s6e3ha2_unprepare, 627 .prepare = s6e3ha2_prepare, 628 .enable = s6e3ha2_enable, 629 .get_modes = s6e3ha2_get_modes, 630 }; 631 632 static int s6e3ha2_probe(struct mipi_dsi_device *dsi) 633 { 634 struct device *dev = &dsi->dev; 635 struct s6e3ha2 *ctx; 636 int ret; 637 638 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); 639 if (!ctx) 640 return -ENOMEM; 641 642 mipi_dsi_set_drvdata(dsi, ctx); 643 644 ctx->dev = dev; 645 646 dsi->lanes = 4; 647 dsi->format = MIPI_DSI_FMT_RGB888; 648 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; 649 650 ctx->supplies[0].supply = "vdd3"; 651 ctx->supplies[1].supply = "vci"; 652 653 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), 654 ctx->supplies); 655 if (ret < 0) { 656 dev_err(dev, "failed to get regulators: %d\n", ret); 657 return ret; 658 } 659 660 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); 661 if (IS_ERR(ctx->reset_gpio)) { 662 dev_err(dev, "cannot get reset-gpios %ld\n", 663 PTR_ERR(ctx->reset_gpio)); 664 return PTR_ERR(ctx->reset_gpio); 665 } 666 667 ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); 668 if (IS_ERR(ctx->enable_gpio)) { 669 dev_err(dev, "cannot get enable-gpios %ld\n", 670 PTR_ERR(ctx->enable_gpio)); 671 return PTR_ERR(ctx->enable_gpio); 672 } 673 674 ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, 675 &s6e3ha2_bl_ops, NULL); 676 if (IS_ERR(ctx->bl_dev)) { 677 dev_err(dev, "failed to register backlight device\n"); 678 return PTR_ERR(ctx->bl_dev); 679 } 680 681 ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; 682 ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; 683 ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; 684 685 drm_panel_init(&ctx->panel); 686 ctx->panel.dev = dev; 687 ctx->panel.funcs = &s6e3ha2_drm_funcs; 688 689 ret = drm_panel_add(&ctx->panel); 690 if (ret < 0) 691 goto unregister_backlight; 692 693 ret = mipi_dsi_attach(dsi); 694 if (ret < 0) 695 goto remove_panel; 696 697 return ret; 698 699 remove_panel: 700 drm_panel_remove(&ctx->panel); 701 702 unregister_backlight: 703 backlight_device_unregister(ctx->bl_dev); 704 705 return ret; 706 } 707 708 static int s6e3ha2_remove(struct mipi_dsi_device *dsi) 709 { 710 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); 711 712 mipi_dsi_detach(dsi); 713 drm_panel_remove(&ctx->panel); 714 backlight_device_unregister(ctx->bl_dev); 715 716 return 0; 717 } 718 719 static const struct of_device_id s6e3ha2_of_match[] = { 720 { .compatible = "samsung,s6e3ha2" }, 721 { } 722 }; 723 MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); 724 725 static struct mipi_dsi_driver s6e3ha2_driver = { 726 .probe = s6e3ha2_probe, 727 .remove = s6e3ha2_remove, 728 .driver = { 729 .name = "panel-samsung-s6e3ha2", 730 .of_match_table = s6e3ha2_of_match, 731 }, 732 }; 733 module_mipi_dsi_driver(s6e3ha2_driver); 734 735 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); 736 MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); 737 MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); 738 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); 739 MODULE_LICENSE("GPL v2"); 740