1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. 4 * 5 * Copyright (c) 2016 Samsung Electronics Co., Ltd. 6 * Donghwa Lee <dh09.lee@samsung.com> 7 * Hyungwon Hwang <human.hwang@samsung.com> 8 * Hoegeun Kwon <hoegeun.kwon@samsung.com> 9 */ 10 11 #include <linux/backlight.h> 12 #include <linux/delay.h> 13 #include <linux/gpio/consumer.h> 14 #include <linux/module.h> 15 #include <linux/of.h> 16 #include <linux/regulator/consumer.h> 17 18 #include <drm/drm_mipi_dsi.h> 19 #include <drm/drm_modes.h> 20 #include <drm/drm_panel.h> 21 22 #define S6E3HA2_MIN_BRIGHTNESS 0 23 #define S6E3HA2_MAX_BRIGHTNESS 100 24 #define S6E3HA2_DEFAULT_BRIGHTNESS 80 25 26 #define S6E3HA2_NUM_GAMMA_STEPS 46 27 #define S6E3HA2_GAMMA_CMD_CNT 35 28 #define S6E3HA2_VINT_STATUS_MAX 10 29 30 static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { 31 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, 32 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, 33 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, 34 0x00, 0x00 }, 35 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, 36 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, 37 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, 38 0x00, 0x00 }, 39 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 40 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, 41 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, 42 0x00, 0x00 }, 43 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 44 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, 45 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, 46 0x00, 0x00 }, 47 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, 48 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, 49 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, 50 0x00, 0x00 }, 51 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 52 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, 53 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, 54 0x00, 0x00 }, 55 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 56 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, 57 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, 58 0x00, 0x00 }, 59 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 60 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, 61 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 62 0x00, 0x00 }, 63 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 64 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, 65 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, 66 0x00, 0x00 }, 67 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, 68 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, 69 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, 70 0x00, 0x00 }, 71 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 72 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, 73 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, 74 0x00, 0x00 }, 75 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 76 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, 77 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, 78 0x00, 0x00 }, 79 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 80 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, 81 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, 82 0x00, 0x00 }, 83 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 84 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 85 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, 86 0x00, 0x00 }, 87 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 88 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, 89 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 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, 0x84, 0x84, 0x85, 0x8b, 93 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 94 0x00, 0x00 }, 95 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, 96 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, 97 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 98 0x00, 0x00 }, 99 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, 100 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, 101 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 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, 0x8d, 105 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 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, 0x83, 0x83, 0x85, 0x8c, 109 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 110 0x00, 0x00 }, 111 { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, 112 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, 113 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 114 0x00, 0x00 }, 115 { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, 116 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, 117 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 118 0x00, 0x00 }, 119 { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, 120 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, 121 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 122 0x00, 0x00 }, 123 { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, 124 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, 125 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, 126 0x00, 0x00 }, 127 { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, 128 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, 129 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 130 0x00, 0x00 }, 131 { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, 132 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, 133 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 134 0x00, 0x00 }, 135 { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, 136 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, 137 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, 138 0x00, 0x00 }, 139 { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, 140 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, 141 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, 142 0x00, 0x00 }, 143 { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, 144 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, 145 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, 146 0x00, 0x00 }, 147 { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, 148 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, 149 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 150 0x00, 0x00 }, 151 { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, 152 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, 153 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, 154 0x00, 0x00 }, 155 { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, 156 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, 157 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, 158 0x00, 0x00 }, 159 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 160 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, 161 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, 162 0x00, 0x00 }, 163 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, 164 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 165 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 166 0x00, 0x00 }, 167 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 168 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, 169 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, 170 0x00, 0x00 }, 171 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, 172 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, 173 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 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, 0x83, 177 0x82, 0x7f, 0x91, 0x85, 0x81, 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, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, 181 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, 182 0x00, 0x00 }, 183 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, 184 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, 185 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, 186 0x00, 0x00 }, 187 { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, 188 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, 189 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, 190 0x00, 0x00 }, 191 { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, 192 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, 193 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 194 0x00, 0x00 }, 195 { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, 196 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, 197 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 198 0x00, 0x00 }, 199 { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, 200 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, 201 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 202 0x00, 0x00 }, 203 { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, 204 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 205 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 206 0x00, 0x00 }, 207 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 208 0x80, 0x80, 0x80, 0x80, 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 }; 216 217 static const unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { 218 0x18, 0x19, 0x1a, 0x1b, 0x1c, 219 0x1d, 0x1e, 0x1f, 0x20, 0x21 220 }; 221 222 enum s6e3ha2_type { 223 HA2_TYPE, 224 HF2_TYPE, 225 }; 226 227 struct s6e3ha2_panel_desc { 228 const struct drm_display_mode *mode; 229 enum s6e3ha2_type type; 230 }; 231 232 struct s6e3ha2 { 233 struct device *dev; 234 struct drm_panel panel; 235 struct backlight_device *bl_dev; 236 237 struct regulator_bulk_data supplies[2]; 238 struct gpio_desc *reset_gpio; 239 struct gpio_desc *enable_gpio; 240 241 const struct s6e3ha2_panel_desc *desc; 242 }; 243 244 static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) 245 { 246 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 247 248 return mipi_dsi_dcs_write_buffer(dsi, data, len); 249 } 250 251 #define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ 252 static const u8 d[] = { seq }; \ 253 int ret; \ 254 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ 255 if (ret < 0) \ 256 return ret; \ 257 } while (0) 258 259 #define s6e3ha2_call_write_func(ret, func) do { \ 260 ret = (func); \ 261 if (ret < 0) \ 262 return ret; \ 263 } while (0) 264 265 static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) 266 { 267 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); 268 return 0; 269 } 270 271 static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) 272 { 273 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); 274 return 0; 275 } 276 277 static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) 278 { 279 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); 280 return 0; 281 } 282 283 static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) 284 { 285 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); 286 return 0; 287 } 288 289 static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) 290 { 291 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); 292 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); 293 return 0; 294 } 295 296 static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) 297 { 298 s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); 299 if (ctx->desc->type == HF2_TYPE) 300 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67, 0x40, 0xc5); 301 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); 302 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); 303 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); 304 305 if (ctx->desc->type == HA2_TYPE) 306 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, 307 0x40, 0x80, 0xc0, 0x28, 0x28, 308 0x28, 0x28, 0x39, 0xc5); 309 else 310 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x14, 0x6d, 311 0x40, 0x80, 0xc0, 0x28, 0x28, 312 0x28, 0x28, 0x39, 0xc5); 313 314 return 0; 315 } 316 317 static int s6e3ha2_aor_control(struct s6e3ha2 *ctx) 318 { 319 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); 320 return 0; 321 } 322 323 static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) 324 { 325 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); 326 return 0; 327 } 328 329 static int s6e3ha2_acl_off(struct s6e3ha2 *ctx) 330 { 331 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); 332 return 0; 333 } 334 335 static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) 336 { 337 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); 338 return 0; 339 } 340 341 static int s6e3ha2_test_global(struct s6e3ha2 *ctx) 342 { 343 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); 344 return 0; 345 } 346 347 static int s6e3ha2_test(struct s6e3ha2 *ctx) 348 { 349 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); 350 return 0; 351 } 352 353 static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) 354 { 355 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02, 356 0x16, 0x02, 0x16); 357 return 0; 358 } 359 360 static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx) 361 { 362 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); 363 return 0; 364 } 365 366 static int s6e3ha2_poc_global(struct s6e3ha2 *ctx) 367 { 368 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); 369 return 0; 370 } 371 372 static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx) 373 { 374 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); 375 return 0; 376 } 377 378 static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) 379 { 380 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); 381 return 0; 382 } 383 384 static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) 385 { 386 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); 387 return 0; 388 } 389 390 static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx) 391 { 392 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); 393 return 0; 394 } 395 396 static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) 397 { 398 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); 399 return 0; 400 } 401 402 static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx) 403 { 404 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); 405 ndelay(100); /* need for 100ns delay */ 406 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); 407 return 0; 408 } 409 410 static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) 411 { 412 return bl_dev->props.brightness; 413 } 414 415 static int s6e3ha2_set_vint(struct s6e3ha2 *ctx) 416 { 417 struct backlight_device *bl_dev = ctx->bl_dev; 418 unsigned int brightness = bl_dev->props.brightness; 419 unsigned char data[] = { 0xf4, 0x8b, 420 vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / 421 S6E3HA2_MAX_BRIGHTNESS] }; 422 423 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); 424 } 425 426 static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) 427 { 428 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / 429 S6E3HA2_MAX_BRIGHTNESS; 430 } 431 432 static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) 433 { 434 struct backlight_device *bl_dev = ctx->bl_dev; 435 unsigned int index = s6e3ha2_get_brightness_index(brightness); 436 u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; 437 int ret; 438 439 memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); 440 s6e3ha2_call_write_func(ret, 441 s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data))); 442 443 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 444 bl_dev->props.brightness = brightness; 445 446 return 0; 447 } 448 449 static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) 450 { 451 struct s6e3ha2 *ctx = bl_get_data(bl_dev); 452 unsigned int brightness = bl_dev->props.brightness; 453 int ret; 454 455 if (brightness < S6E3HA2_MIN_BRIGHTNESS || 456 brightness > bl_dev->props.max_brightness) { 457 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); 458 return -EINVAL; 459 } 460 461 if (bl_dev->props.power > FB_BLANK_NORMAL) 462 return -EPERM; 463 464 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 465 s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness)); 466 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 467 s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx)); 468 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 469 470 return 0; 471 } 472 473 static const struct backlight_ops s6e3ha2_bl_ops = { 474 .get_brightness = s6e3ha2_get_brightness, 475 .update_status = s6e3ha2_set_brightness, 476 }; 477 478 static int s6e3ha2_panel_init(struct s6e3ha2 *ctx) 479 { 480 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 481 int ret; 482 483 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi)); 484 usleep_range(5000, 6000); 485 486 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 487 s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx)); 488 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 489 s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx)); 490 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 491 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 492 493 return 0; 494 } 495 496 static int s6e3ha2_power_off(struct s6e3ha2 *ctx) 497 { 498 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 499 } 500 501 static int s6e3ha2_disable(struct drm_panel *panel) 502 { 503 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 504 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 505 int ret; 506 507 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi)); 508 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi)); 509 510 msleep(40); 511 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 512 513 return 0; 514 } 515 516 static int s6e3ha2_unprepare(struct drm_panel *panel) 517 { 518 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 519 520 return s6e3ha2_power_off(ctx); 521 } 522 523 static int s6e3ha2_power_on(struct s6e3ha2 *ctx) 524 { 525 int ret; 526 527 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); 528 if (ret < 0) 529 return ret; 530 531 msleep(120); 532 533 gpiod_set_value(ctx->enable_gpio, 0); 534 usleep_range(5000, 6000); 535 gpiod_set_value(ctx->enable_gpio, 1); 536 537 gpiod_set_value(ctx->reset_gpio, 1); 538 usleep_range(5000, 6000); 539 gpiod_set_value(ctx->reset_gpio, 0); 540 usleep_range(5000, 6000); 541 542 return 0; 543 } 544 static int s6e3ha2_prepare(struct drm_panel *panel) 545 { 546 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 547 int ret; 548 549 ret = s6e3ha2_power_on(ctx); 550 if (ret < 0) 551 return ret; 552 553 ret = s6e3ha2_panel_init(ctx); 554 if (ret < 0) 555 goto err; 556 557 ctx->bl_dev->props.power = FB_BLANK_NORMAL; 558 559 return 0; 560 561 err: 562 s6e3ha2_power_off(ctx); 563 return ret; 564 } 565 566 static int s6e3ha2_enable(struct drm_panel *panel) 567 { 568 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 569 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); 570 int ret; 571 572 /* common setting */ 573 s6e3ha2_call_write_func(ret, 574 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK)); 575 576 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx)); 577 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx)); 578 s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx)); 579 s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx)); 580 s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx)); 581 s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx)); 582 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx)); 583 584 /* pcd setting off for TB */ 585 s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx)); 586 s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx)); 587 s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx)); 588 589 /* brightness setting */ 590 s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev)); 591 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx)); 592 s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx)); 593 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx)); 594 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx)); 595 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx)); 596 s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx)); 597 598 /* elvss temp compensation */ 599 s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx)); 600 s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx)); 601 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx)); 602 603 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi)); 604 ctx->bl_dev->props.power = FB_BLANK_UNBLANK; 605 606 return 0; 607 } 608 609 static const struct drm_display_mode s6e3ha2_mode = { 610 .clock = 222372, 611 .hdisplay = 1440, 612 .hsync_start = 1440 + 1, 613 .hsync_end = 1440 + 1 + 1, 614 .htotal = 1440 + 1 + 1 + 1, 615 .vdisplay = 2560, 616 .vsync_start = 2560 + 1, 617 .vsync_end = 2560 + 1 + 1, 618 .vtotal = 2560 + 1 + 1 + 15, 619 .flags = 0, 620 }; 621 622 static const struct s6e3ha2_panel_desc samsung_s6e3ha2 = { 623 .mode = &s6e3ha2_mode, 624 .type = HA2_TYPE, 625 }; 626 627 static const struct drm_display_mode s6e3hf2_mode = { 628 .clock = 247856, 629 .hdisplay = 1600, 630 .hsync_start = 1600 + 1, 631 .hsync_end = 1600 + 1 + 1, 632 .htotal = 1600 + 1 + 1 + 1, 633 .vdisplay = 2560, 634 .vsync_start = 2560 + 1, 635 .vsync_end = 2560 + 1 + 1, 636 .vtotal = 2560 + 1 + 1 + 15, 637 .flags = 0, 638 }; 639 640 static const struct s6e3ha2_panel_desc samsung_s6e3hf2 = { 641 .mode = &s6e3hf2_mode, 642 .type = HF2_TYPE, 643 }; 644 645 static int s6e3ha2_get_modes(struct drm_panel *panel, 646 struct drm_connector *connector) 647 { 648 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); 649 struct drm_display_mode *mode; 650 651 mode = drm_mode_duplicate(connector->dev, ctx->desc->mode); 652 if (!mode) { 653 dev_err(panel->dev, "failed to add mode %ux%u@%u\n", 654 ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay, 655 drm_mode_vrefresh(ctx->desc->mode)); 656 return -ENOMEM; 657 } 658 659 drm_mode_set_name(mode); 660 661 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 662 drm_mode_probed_add(connector, mode); 663 664 connector->display_info.width_mm = 71; 665 connector->display_info.height_mm = 125; 666 667 return 1; 668 } 669 670 static const struct drm_panel_funcs s6e3ha2_drm_funcs = { 671 .disable = s6e3ha2_disable, 672 .unprepare = s6e3ha2_unprepare, 673 .prepare = s6e3ha2_prepare, 674 .enable = s6e3ha2_enable, 675 .get_modes = s6e3ha2_get_modes, 676 }; 677 678 static int s6e3ha2_probe(struct mipi_dsi_device *dsi) 679 { 680 struct device *dev = &dsi->dev; 681 struct s6e3ha2 *ctx; 682 int ret; 683 684 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); 685 if (!ctx) 686 return -ENOMEM; 687 688 mipi_dsi_set_drvdata(dsi, ctx); 689 690 ctx->dev = dev; 691 ctx->desc = of_device_get_match_data(dev); 692 693 dsi->lanes = 4; 694 dsi->format = MIPI_DSI_FMT_RGB888; 695 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS | 696 MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP | 697 MIPI_DSI_MODE_VIDEO_NO_HSA | MIPI_DSI_MODE_NO_EOT_PACKET; 698 699 ctx->supplies[0].supply = "vdd3"; 700 ctx->supplies[1].supply = "vci"; 701 702 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), 703 ctx->supplies); 704 if (ret < 0) { 705 dev_err(dev, "failed to get regulators: %d\n", ret); 706 return ret; 707 } 708 709 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); 710 if (IS_ERR(ctx->reset_gpio)) { 711 dev_err(dev, "cannot get reset-gpios %ld\n", 712 PTR_ERR(ctx->reset_gpio)); 713 return PTR_ERR(ctx->reset_gpio); 714 } 715 716 ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); 717 if (IS_ERR(ctx->enable_gpio)) { 718 dev_err(dev, "cannot get enable-gpios %ld\n", 719 PTR_ERR(ctx->enable_gpio)); 720 return PTR_ERR(ctx->enable_gpio); 721 } 722 723 ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, 724 &s6e3ha2_bl_ops, NULL); 725 if (IS_ERR(ctx->bl_dev)) { 726 dev_err(dev, "failed to register backlight device\n"); 727 return PTR_ERR(ctx->bl_dev); 728 } 729 730 ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; 731 ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; 732 ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; 733 734 drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs, 735 DRM_MODE_CONNECTOR_DSI); 736 ctx->panel.prepare_prev_first = true; 737 738 drm_panel_add(&ctx->panel); 739 740 ret = mipi_dsi_attach(dsi); 741 if (ret < 0) 742 goto remove_panel; 743 744 return ret; 745 746 remove_panel: 747 drm_panel_remove(&ctx->panel); 748 backlight_device_unregister(ctx->bl_dev); 749 750 return ret; 751 } 752 753 static void s6e3ha2_remove(struct mipi_dsi_device *dsi) 754 { 755 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); 756 757 mipi_dsi_detach(dsi); 758 drm_panel_remove(&ctx->panel); 759 backlight_device_unregister(ctx->bl_dev); 760 } 761 762 static const struct of_device_id s6e3ha2_of_match[] = { 763 { .compatible = "samsung,s6e3ha2", .data = &samsung_s6e3ha2 }, 764 { .compatible = "samsung,s6e3hf2", .data = &samsung_s6e3hf2 }, 765 { } 766 }; 767 MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); 768 769 static struct mipi_dsi_driver s6e3ha2_driver = { 770 .probe = s6e3ha2_probe, 771 .remove = s6e3ha2_remove, 772 .driver = { 773 .name = "panel-samsung-s6e3ha2", 774 .of_match_table = s6e3ha2_of_match, 775 }, 776 }; 777 module_mipi_dsi_driver(s6e3ha2_driver); 778 779 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); 780 MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); 781 MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); 782 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); 783 MODULE_LICENSE("GPL v2"); 784