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 <linux/backlight.h> 15 #include <linux/delay.h> 16 #include <linux/gpio/consumer.h> 17 #include <linux/module.h> 18 #include <linux/of_device.h> 19 #include <linux/regulator/consumer.h> 20 21 #include <drm/drm_mipi_dsi.h> 22 #include <drm/drm_modes.h> 23 #include <drm/drm_panel.h> 24 #include <drm/drm_print.h> 25 26 #define S6E3HA2_MIN_BRIGHTNESS 0 27 #define S6E3HA2_MAX_BRIGHTNESS 100 28 #define S6E3HA2_DEFAULT_BRIGHTNESS 80 29 30 #define S6E3HA2_NUM_GAMMA_STEPS 46 31 #define S6E3HA2_GAMMA_CMD_CNT 35 32 #define S6E3HA2_VINT_STATUS_MAX 10 33 34 static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { 35 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, 36 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, 37 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, 38 0x00, 0x00 }, 39 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, 40 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, 41 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, 42 0x00, 0x00 }, 43 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 44 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, 45 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, 46 0x00, 0x00 }, 47 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 48 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, 49 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, 50 0x00, 0x00 }, 51 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, 52 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, 53 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, 54 0x00, 0x00 }, 55 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 56 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, 57 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, 58 0x00, 0x00 }, 59 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 60 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, 61 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, 62 0x00, 0x00 }, 63 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 64 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, 65 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 66 0x00, 0x00 }, 67 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 68 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, 69 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 70 0x00, 0x00 }, 71 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 72 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, 73 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, 74 0x00, 0x00 }, 75 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 76 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, 77 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, 78 0x00, 0x00 }, 79 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 80 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, 81 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, 82 0x00, 0x00 }, 83 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 84 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, 85 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, 86 0x00, 0x00 }, 87 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 88 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 89 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, 90 0x00, 0x00 }, 91 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 92 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 93 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00, 94 0x00, 0x00 }, 95 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 96 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b, 97 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 98 0x00, 0x00 }, 99 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 100 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, 101 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 102 0x00, 0x00 }, 103 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 104 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, 105 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00, 106 0x00, 0x00 }, 107 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 108 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d, 109 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 110 0x00, 0x00 }, 111 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 112 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c, 113 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 114 0x00, 0x00 }, 115 { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, 116 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, 117 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 118 0x00, 0x00 }, 119 { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, 120 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, 121 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 122 0x00, 0x00 }, 123 { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, 124 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, 125 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 126 0x00, 0x00 }, 127 { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, 128 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, 129 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, 130 0x00, 0x00 }, 131 { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, 132 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, 133 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 134 0x00, 0x00 }, 135 { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, 136 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, 137 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 138 0x00, 0x00 }, 139 { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, 140 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, 141 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 142 0x00, 0x00 }, 143 { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, 144 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, 145 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 146 0x00, 0x00 }, 147 { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, 148 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, 149 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, 150 0x00, 0x00 }, 151 { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, 152 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, 153 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 154 0x00, 0x00 }, 155 { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, 156 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, 157 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, 158 0x00, 0x00 }, 159 { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, 160 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, 161 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 162 0x00, 0x00 }, 163 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 164 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, 165 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 166 0x00, 0x00 }, 167 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, 168 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 169 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 170 0x00, 0x00 }, 171 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 172 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 173 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 174 0x00, 0x00 }, 175 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 176 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, 177 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 178 0x00, 0x00 }, 179 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 180 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, 181 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 182 0x00, 0x00 }, 183 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 184 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, 185 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 186 0x00, 0x00 }, 187 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, 188 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, 189 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, 190 0x00, 0x00 }, 191 { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, 192 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, 193 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, 194 0x00, 0x00 }, 195 { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, 196 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, 197 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 198 0x00, 0x00 }, 199 { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, 200 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, 201 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 202 0x00, 0x00 }, 203 { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, 204 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, 205 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 206 0x00, 0x00 }, 207 { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, 208 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 209 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 210 0x00, 0x00 }, 211 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 212 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 213 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 214 0x00, 0x00 }, 215 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 216 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 217 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 218 0x00, 0x00 } 219 }; 220 221 unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { 222 0x18, 0x19, 0x1a, 0x1b, 0x1c, 223 0x1d, 0x1e, 0x1f, 0x20, 0x21 224 }; 225 226 enum s6e3ha2_type { 227 HA2_TYPE, 228 HF2_TYPE, 229 }; 230 231 struct s6e3ha2_panel_desc { 232 const struct drm_display_mode *mode; 233 enum s6e3ha2_type type; 234 }; 235 236 struct s6e3ha2 { 237 struct device *dev; 238 struct drm_panel panel; 239 struct backlight_device *bl_dev; 240 241 struct regulator_bulk_data supplies[2]; 242 struct gpio_desc *reset_gpio; 243 struct gpio_desc *enable_gpio; 244 245 const struct s6e3ha2_panel_desc *desc; 246 }; 247 248 static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) 249 { 250 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 251 252 return mipi_dsi_dcs_write_buffer(dsi, data, len); 253 } 254 255 #define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ 256 static const u8 d[] = { seq }; \ 257 int ret; \ 258 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ 259 if (ret < 0) \ 260 return ret; \ 261 } while (0) 262 263 #define s6e3ha2_call_write_func(ret, func) do { \ 264 ret = (func); \ 265 if (ret < 0) \ 266 return ret; \ 267 } while (0) 268 269 static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) 270 { 271 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); 272 return 0; 273 } 274 275 static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) 276 { 277 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); 278 return 0; 279 } 280 281 static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) 282 { 283 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); 284 return 0; 285 } 286 287 static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) 288 { 289 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); 290 return 0; 291 } 292 293 static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) 294 { 295 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); 296 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); 297 return 0; 298 } 299 300 static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) 301 { 302 s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); 303 if (ctx->desc->type == HF2_TYPE) 304 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67, 0x40, 0xc5); 305 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); 306 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); 307 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); 308 309 if (ctx->desc->type == HA2_TYPE) 310 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, 311 0x40, 0x80, 0xc0, 0x28, 0x28, 312 0x28, 0x28, 0x39, 0xc5); 313 else 314 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x14, 0x6d, 315 0x40, 0x80, 0xc0, 0x28, 0x28, 316 0x28, 0x28, 0x39, 0xc5); 317 318 return 0; 319 } 320 321 static int s6e3ha2_aor_control(struct s6e3ha2 *ctx) 322 { 323 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); 324 return 0; 325 } 326 327 static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) 328 { 329 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); 330 return 0; 331 } 332 333 static int s6e3ha2_acl_off(struct s6e3ha2 *ctx) 334 { 335 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); 336 return 0; 337 } 338 339 static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) 340 { 341 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); 342 return 0; 343 } 344 345 static int s6e3ha2_test_global(struct s6e3ha2 *ctx) 346 { 347 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); 348 return 0; 349 } 350 351 static int s6e3ha2_test(struct s6e3ha2 *ctx) 352 { 353 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); 354 return 0; 355 } 356 357 static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) 358 { 359 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02, 360 0x16, 0x02, 0x16); 361 return 0; 362 } 363 364 static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx) 365 { 366 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); 367 return 0; 368 } 369 370 static int s6e3ha2_poc_global(struct s6e3ha2 *ctx) 371 { 372 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); 373 return 0; 374 } 375 376 static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx) 377 { 378 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); 379 return 0; 380 } 381 382 static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) 383 { 384 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); 385 return 0; 386 } 387 388 static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) 389 { 390 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); 391 return 0; 392 } 393 394 static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx) 395 { 396 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); 397 return 0; 398 } 399 400 static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) 401 { 402 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); 403 return 0; 404 } 405 406 static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx) 407 { 408 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); 409 ndelay(100); /* need for 100ns delay */ 410 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); 411 return 0; 412 } 413 414 static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) 415 { 416 return bl_dev->props.brightness; 417 } 418 419 static int s6e3ha2_set_vint(struct s6e3ha2 *ctx) 420 { 421 struct backlight_device *bl_dev = ctx->bl_dev; 422 unsigned int brightness = bl_dev->props.brightness; 423 unsigned char data[] = { 0xf4, 0x8b, 424 vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / 425 S6E3HA2_MAX_BRIGHTNESS] }; 426 427 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); 428 } 429 430 static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) 431 { 432 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / 433 S6E3HA2_MAX_BRIGHTNESS; 434 } 435 436 static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) 437 { 438 struct backlight_device *bl_dev = ctx->bl_dev; 439 unsigned int index = s6e3ha2_get_brightness_index(brightness); 440 u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; 441 int ret; 442 443 memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); 444 s6e3ha2_call_write_func(ret, 445 s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data))); 446 447 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 448 bl_dev->props.brightness = brightness; 449 450 return 0; 451 } 452 453 static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) 454 { 455 struct s6e3ha2 *ctx = bl_get_data(bl_dev); 456 unsigned int brightness = bl_dev->props.brightness; 457 int ret; 458 459 if (brightness < S6E3HA2_MIN_BRIGHTNESS || 460 brightness > bl_dev->props.max_brightness) { 461 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); 462 return -EINVAL; 463 } 464 465 if (bl_dev->props.power > FB_BLANK_NORMAL) 466 return -EPERM; 467 468 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 469 s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness)); 470 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 471 s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx)); 472 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 473 474 return 0; 475 } 476 477 static const struct backlight_ops s6e3ha2_bl_ops = { 478 .get_brightness = s6e3ha2_get_brightness, 479 .update_status = s6e3ha2_set_brightness, 480 }; 481 482 static int s6e3ha2_panel_init(struct s6e3ha2 *ctx) 483 { 484 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 485 int ret; 486 487 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi)); 488 usleep_range(5000, 6000); 489 490 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 491 s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx)); 492 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 493 s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx)); 494 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 495 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 496 497 return 0; 498 } 499 500 static int s6e3ha2_power_off(struct s6e3ha2 *ctx) 501 { 502 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 503 } 504 505 static int s6e3ha2_disable(struct drm_panel *panel) 506 { 507 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 508 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 509 int ret; 510 511 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi)); 512 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi)); 513 514 msleep(40); 515 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 516 517 return 0; 518 } 519 520 static int s6e3ha2_unprepare(struct drm_panel *panel) 521 { 522 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 523 524 return s6e3ha2_power_off(ctx); 525 } 526 527 static int s6e3ha2_power_on(struct s6e3ha2 *ctx) 528 { 529 int ret; 530 531 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 532 if (ret < 0) 533 return ret; 534 535 msleep(120); 536 537 gpiod_set_value(ctx->enable_gpio, 0); 538 usleep_range(5000, 6000); 539 gpiod_set_value(ctx->enable_gpio, 1); 540 541 gpiod_set_value(ctx->reset_gpio, 1); 542 usleep_range(5000, 6000); 543 gpiod_set_value(ctx->reset_gpio, 0); 544 usleep_range(5000, 6000); 545 546 return 0; 547 } 548 static int s6e3ha2_prepare(struct drm_panel *panel) 549 { 550 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 551 int ret; 552 553 ret = s6e3ha2_power_on(ctx); 554 if (ret < 0) 555 return ret; 556 557 ret = s6e3ha2_panel_init(ctx); 558 if (ret < 0) 559 goto err; 560 561 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 562 563 return 0; 564 565 err: 566 s6e3ha2_power_off(ctx); 567 return ret; 568 } 569 570 static int s6e3ha2_enable(struct drm_panel *panel) 571 { 572 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 573 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 574 int ret; 575 576 /* common setting */ 577 s6e3ha2_call_write_func(ret, 578 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK)); 579 580 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 581 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 582 s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx)); 583 s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx)); 584 s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx)); 585 s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx)); 586 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 587 588 /* pcd setting off for TB */ 589 s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx)); 590 s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx)); 591 s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx)); 592 593 /* brightness setting */ 594 s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev)); 595 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 596 s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx)); 597 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 598 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx)); 599 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx)); 600 s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx)); 601 602 /* elvss temp compensation */ 603 s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx)); 604 s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx)); 605 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 606 607 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi)); 608 ctx->bl_dev->props.power = FB_BLANK_UNBLANK; 609 610 return 0; 611 } 612 613 static const struct drm_display_mode s6e3ha2_mode = { 614 .clock = 222372, 615 .hdisplay = 1440, 616 .hsync_start = 1440 + 1, 617 .hsync_end = 1440 + 1 + 1, 618 .htotal = 1440 + 1 + 1 + 1, 619 .vdisplay = 2560, 620 .vsync_start = 2560 + 1, 621 .vsync_end = 2560 + 1 + 1, 622 .vtotal = 2560 + 1 + 1 + 15, 623 .vrefresh = 60, 624 .flags = 0, 625 }; 626 627 static const struct s6e3ha2_panel_desc samsung_s6e3ha2 = { 628 .mode = &s6e3ha2_mode, 629 .type = HA2_TYPE, 630 }; 631 632 static const struct drm_display_mode s6e3hf2_mode = { 633 .clock = 247856, 634 .hdisplay = 1600, 635 .hsync_start = 1600 + 1, 636 .hsync_end = 1600 + 1 + 1, 637 .htotal = 1600 + 1 + 1 + 1, 638 .vdisplay = 2560, 639 .vsync_start = 2560 + 1, 640 .vsync_end = 2560 + 1 + 1, 641 .vtotal = 2560 + 1 + 1 + 15, 642 .vrefresh = 60, 643 .flags = 0, 644 }; 645 646 static const struct s6e3ha2_panel_desc samsung_s6e3hf2 = { 647 .mode = &s6e3hf2_mode, 648 .type = HF2_TYPE, 649 }; 650 651 static int s6e3ha2_get_modes(struct drm_panel *panel) 652 { 653 struct drm_connector *connector = panel->connector; 654 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 655 struct drm_display_mode *mode; 656 657 mode = drm_mode_duplicate(panel->drm, ctx->desc->mode); 658 if (!mode) { 659 DRM_ERROR("failed to add mode %ux%ux@%u\n", 660 ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay, 661 ctx->desc->mode->vrefresh); 662 return -ENOMEM; 663 } 664 665 drm_mode_set_name(mode); 666 667 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 668 drm_mode_probed_add(connector, mode); 669 670 connector->display_info.width_mm = 71; 671 connector->display_info.height_mm = 125; 672 673 return 1; 674 } 675 676 static const struct drm_panel_funcs s6e3ha2_drm_funcs = { 677 .disable = s6e3ha2_disable, 678 .unprepare = s6e3ha2_unprepare, 679 .prepare = s6e3ha2_prepare, 680 .enable = s6e3ha2_enable, 681 .get_modes = s6e3ha2_get_modes, 682 }; 683 684 static int s6e3ha2_probe(struct mipi_dsi_device *dsi) 685 { 686 struct device *dev = &dsi->dev; 687 struct s6e3ha2 *ctx; 688 int ret; 689 690 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); 691 if (!ctx) 692 return -ENOMEM; 693 694 mipi_dsi_set_drvdata(dsi, ctx); 695 696 ctx->dev = dev; 697 ctx->desc = of_device_get_match_data(dev); 698 699 dsi->lanes = 4; 700 dsi->format = MIPI_DSI_FMT_RGB888; 701 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; 702 703 ctx->supplies[0].supply = "vdd3"; 704 ctx->supplies[1].supply = "vci"; 705 706 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), 707 ctx->supplies); 708 if (ret < 0) { 709 dev_err(dev, "failed to get regulators: %d\n", ret); 710 return ret; 711 } 712 713 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); 714 if (IS_ERR(ctx->reset_gpio)) { 715 dev_err(dev, "cannot get reset-gpios %ld\n", 716 PTR_ERR(ctx->reset_gpio)); 717 return PTR_ERR(ctx->reset_gpio); 718 } 719 720 ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); 721 if (IS_ERR(ctx->enable_gpio)) { 722 dev_err(dev, "cannot get enable-gpios %ld\n", 723 PTR_ERR(ctx->enable_gpio)); 724 return PTR_ERR(ctx->enable_gpio); 725 } 726 727 ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, 728 &s6e3ha2_bl_ops, NULL); 729 if (IS_ERR(ctx->bl_dev)) { 730 dev_err(dev, "failed to register backlight device\n"); 731 return PTR_ERR(ctx->bl_dev); 732 } 733 734 ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; 735 ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; 736 ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; 737 738 drm_panel_init(&ctx->panel); 739 ctx->panel.dev = dev; 740 ctx->panel.funcs = &s6e3ha2_drm_funcs; 741 742 ret = drm_panel_add(&ctx->panel); 743 if (ret < 0) 744 goto unregister_backlight; 745 746 ret = mipi_dsi_attach(dsi); 747 if (ret < 0) 748 goto remove_panel; 749 750 return ret; 751 752 remove_panel: 753 drm_panel_remove(&ctx->panel); 754 755 unregister_backlight: 756 backlight_device_unregister(ctx->bl_dev); 757 758 return ret; 759 } 760 761 static int s6e3ha2_remove(struct mipi_dsi_device *dsi) 762 { 763 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); 764 765 mipi_dsi_detach(dsi); 766 drm_panel_remove(&ctx->panel); 767 backlight_device_unregister(ctx->bl_dev); 768 769 return 0; 770 } 771 772 static const struct of_device_id s6e3ha2_of_match[] = { 773 { .compatible = "samsung,s6e3ha2", .data = &samsung_s6e3ha2 }, 774 { .compatible = "samsung,s6e3hf2", .data = &samsung_s6e3hf2 }, 775 { } 776 }; 777 MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); 778 779 static struct mipi_dsi_driver s6e3ha2_driver = { 780 .probe = s6e3ha2_probe, 781 .remove = s6e3ha2_remove, 782 .driver = { 783 .name = "panel-samsung-s6e3ha2", 784 .of_match_table = s6e3ha2_of_match, 785 }, 786 }; 787 module_mipi_dsi_driver(s6e3ha2_driver); 788 789 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); 790 MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); 791 MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); 792 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); 793 MODULE_LICENSE("GPL v2"); 794