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