1 /* 2 * Ingenic SoCs pinctrl driver 3 * 4 * Copyright (c) 2017 Paul Cercueil <paul@crapouillou.net> 5 * 6 * License terms: GNU General Public License (GPL) version 2 7 */ 8 9 #include <linux/compiler.h> 10 #include <linux/gpio/driver.h> 11 #include <linux/interrupt.h> 12 #include <linux/io.h> 13 #include <linux/of_device.h> 14 #include <linux/of_irq.h> 15 #include <linux/of_platform.h> 16 #include <linux/pinctrl/pinctrl.h> 17 #include <linux/pinctrl/pinmux.h> 18 #include <linux/pinctrl/pinconf.h> 19 #include <linux/pinctrl/pinconf-generic.h> 20 #include <linux/platform_device.h> 21 #include <linux/regmap.h> 22 #include <linux/slab.h> 23 24 #include "core.h" 25 #include "pinconf.h" 26 #include "pinmux.h" 27 28 #define GPIO_PIN 0x00 29 #define GPIO_MSK 0x20 30 31 #define JZ4740_GPIO_DATA 0x10 32 #define JZ4740_GPIO_PULL_DIS 0x30 33 #define JZ4740_GPIO_FUNC 0x40 34 #define JZ4740_GPIO_SELECT 0x50 35 #define JZ4740_GPIO_DIR 0x60 36 #define JZ4740_GPIO_TRIG 0x70 37 #define JZ4740_GPIO_FLAG 0x80 38 39 #define JZ4770_GPIO_INT 0x10 40 #define JZ4770_GPIO_PAT1 0x30 41 #define JZ4770_GPIO_PAT0 0x40 42 #define JZ4770_GPIO_FLAG 0x50 43 #define JZ4770_GPIO_PEN 0x70 44 45 #define REG_SET(x) ((x) + 0x4) 46 #define REG_CLEAR(x) ((x) + 0x8) 47 48 #define PINS_PER_GPIO_CHIP 32 49 50 enum jz_version { 51 ID_JZ4740, 52 ID_JZ4725B, 53 ID_JZ4770, 54 ID_JZ4780, 55 }; 56 57 struct ingenic_chip_info { 58 unsigned int num_chips; 59 60 const struct group_desc *groups; 61 unsigned int num_groups; 62 63 const struct function_desc *functions; 64 unsigned int num_functions; 65 66 const u32 *pull_ups, *pull_downs; 67 }; 68 69 struct ingenic_pinctrl { 70 struct device *dev; 71 struct regmap *map; 72 struct pinctrl_dev *pctl; 73 struct pinctrl_pin_desc *pdesc; 74 enum jz_version version; 75 76 const struct ingenic_chip_info *info; 77 }; 78 79 struct ingenic_gpio_chip { 80 struct ingenic_pinctrl *jzpc; 81 struct gpio_chip gc; 82 struct irq_chip irq_chip; 83 unsigned int irq, reg_base; 84 }; 85 86 static const u32 jz4740_pull_ups[4] = { 87 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 88 }; 89 90 static const u32 jz4740_pull_downs[4] = { 91 0x00000000, 0x00000000, 0x00000000, 0x00000000, 92 }; 93 94 static int jz4740_mmc_1bit_pins[] = { 0x69, 0x68, 0x6a, }; 95 static int jz4740_mmc_4bit_pins[] = { 0x6b, 0x6c, 0x6d, }; 96 static int jz4740_uart0_data_pins[] = { 0x7a, 0x79, }; 97 static int jz4740_uart0_hwflow_pins[] = { 0x7e, 0x7f, }; 98 static int jz4740_uart1_data_pins[] = { 0x7e, 0x7f, }; 99 static int jz4740_lcd_8bit_pins[] = { 100 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x52, 0x53, 0x54, 101 }; 102 static int jz4740_lcd_16bit_pins[] = { 103 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x55, 104 }; 105 static int jz4740_lcd_18bit_pins[] = { 0x50, 0x51, }; 106 static int jz4740_lcd_18bit_tft_pins[] = { 0x56, 0x57, 0x31, 0x32, }; 107 static int jz4740_nand_cs1_pins[] = { 0x39, }; 108 static int jz4740_nand_cs2_pins[] = { 0x3a, }; 109 static int jz4740_nand_cs3_pins[] = { 0x3b, }; 110 static int jz4740_nand_cs4_pins[] = { 0x3c, }; 111 static int jz4740_pwm_pwm0_pins[] = { 0x77, }; 112 static int jz4740_pwm_pwm1_pins[] = { 0x78, }; 113 static int jz4740_pwm_pwm2_pins[] = { 0x79, }; 114 static int jz4740_pwm_pwm3_pins[] = { 0x7a, }; 115 static int jz4740_pwm_pwm4_pins[] = { 0x7b, }; 116 static int jz4740_pwm_pwm5_pins[] = { 0x7c, }; 117 static int jz4740_pwm_pwm6_pins[] = { 0x7e, }; 118 static int jz4740_pwm_pwm7_pins[] = { 0x7f, }; 119 120 static int jz4740_mmc_1bit_funcs[] = { 0, 0, 0, }; 121 static int jz4740_mmc_4bit_funcs[] = { 0, 0, 0, }; 122 static int jz4740_uart0_data_funcs[] = { 1, 1, }; 123 static int jz4740_uart0_hwflow_funcs[] = { 1, 1, }; 124 static int jz4740_uart1_data_funcs[] = { 2, 2, }; 125 static int jz4740_lcd_8bit_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; 126 static int jz4740_lcd_16bit_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, }; 127 static int jz4740_lcd_18bit_funcs[] = { 0, 0, }; 128 static int jz4740_lcd_18bit_tft_funcs[] = { 0, 0, 0, 0, }; 129 static int jz4740_nand_cs1_funcs[] = { 0, }; 130 static int jz4740_nand_cs2_funcs[] = { 0, }; 131 static int jz4740_nand_cs3_funcs[] = { 0, }; 132 static int jz4740_nand_cs4_funcs[] = { 0, }; 133 static int jz4740_pwm_pwm0_funcs[] = { 0, }; 134 static int jz4740_pwm_pwm1_funcs[] = { 0, }; 135 static int jz4740_pwm_pwm2_funcs[] = { 0, }; 136 static int jz4740_pwm_pwm3_funcs[] = { 0, }; 137 static int jz4740_pwm_pwm4_funcs[] = { 0, }; 138 static int jz4740_pwm_pwm5_funcs[] = { 0, }; 139 static int jz4740_pwm_pwm6_funcs[] = { 0, }; 140 static int jz4740_pwm_pwm7_funcs[] = { 0, }; 141 142 #define INGENIC_PIN_GROUP(name, id) \ 143 { \ 144 name, \ 145 id##_pins, \ 146 ARRAY_SIZE(id##_pins), \ 147 id##_funcs, \ 148 } 149 150 static const struct group_desc jz4740_groups[] = { 151 INGENIC_PIN_GROUP("mmc-1bit", jz4740_mmc_1bit), 152 INGENIC_PIN_GROUP("mmc-4bit", jz4740_mmc_4bit), 153 INGENIC_PIN_GROUP("uart0-data", jz4740_uart0_data), 154 INGENIC_PIN_GROUP("uart0-hwflow", jz4740_uart0_hwflow), 155 INGENIC_PIN_GROUP("uart1-data", jz4740_uart1_data), 156 INGENIC_PIN_GROUP("lcd-8bit", jz4740_lcd_8bit), 157 INGENIC_PIN_GROUP("lcd-16bit", jz4740_lcd_16bit), 158 INGENIC_PIN_GROUP("lcd-18bit", jz4740_lcd_18bit), 159 INGENIC_PIN_GROUP("lcd-18bit-tft", jz4740_lcd_18bit_tft), 160 { "lcd-no-pins", }, 161 INGENIC_PIN_GROUP("nand-cs1", jz4740_nand_cs1), 162 INGENIC_PIN_GROUP("nand-cs2", jz4740_nand_cs2), 163 INGENIC_PIN_GROUP("nand-cs3", jz4740_nand_cs3), 164 INGENIC_PIN_GROUP("nand-cs4", jz4740_nand_cs4), 165 INGENIC_PIN_GROUP("pwm0", jz4740_pwm_pwm0), 166 INGENIC_PIN_GROUP("pwm1", jz4740_pwm_pwm1), 167 INGENIC_PIN_GROUP("pwm2", jz4740_pwm_pwm2), 168 INGENIC_PIN_GROUP("pwm3", jz4740_pwm_pwm3), 169 INGENIC_PIN_GROUP("pwm4", jz4740_pwm_pwm4), 170 INGENIC_PIN_GROUP("pwm5", jz4740_pwm_pwm5), 171 INGENIC_PIN_GROUP("pwm6", jz4740_pwm_pwm6), 172 INGENIC_PIN_GROUP("pwm7", jz4740_pwm_pwm7), 173 }; 174 175 static const char *jz4740_mmc_groups[] = { "mmc-1bit", "mmc-4bit", }; 176 static const char *jz4740_uart0_groups[] = { "uart0-data", "uart0-hwflow", }; 177 static const char *jz4740_uart1_groups[] = { "uart1-data", }; 178 static const char *jz4740_lcd_groups[] = { 179 "lcd-8bit", "lcd-16bit", "lcd-18bit", "lcd-18bit-tft", "lcd-no-pins", 180 }; 181 static const char *jz4740_nand_groups[] = { 182 "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4", 183 }; 184 static const char *jz4740_pwm0_groups[] = { "pwm0", }; 185 static const char *jz4740_pwm1_groups[] = { "pwm1", }; 186 static const char *jz4740_pwm2_groups[] = { "pwm2", }; 187 static const char *jz4740_pwm3_groups[] = { "pwm3", }; 188 static const char *jz4740_pwm4_groups[] = { "pwm4", }; 189 static const char *jz4740_pwm5_groups[] = { "pwm5", }; 190 static const char *jz4740_pwm6_groups[] = { "pwm6", }; 191 static const char *jz4740_pwm7_groups[] = { "pwm7", }; 192 193 static const struct function_desc jz4740_functions[] = { 194 { "mmc", jz4740_mmc_groups, ARRAY_SIZE(jz4740_mmc_groups), }, 195 { "uart0", jz4740_uart0_groups, ARRAY_SIZE(jz4740_uart0_groups), }, 196 { "uart1", jz4740_uart1_groups, ARRAY_SIZE(jz4740_uart1_groups), }, 197 { "lcd", jz4740_lcd_groups, ARRAY_SIZE(jz4740_lcd_groups), }, 198 { "nand", jz4740_nand_groups, ARRAY_SIZE(jz4740_nand_groups), }, 199 { "pwm0", jz4740_pwm0_groups, ARRAY_SIZE(jz4740_pwm0_groups), }, 200 { "pwm1", jz4740_pwm1_groups, ARRAY_SIZE(jz4740_pwm1_groups), }, 201 { "pwm2", jz4740_pwm2_groups, ARRAY_SIZE(jz4740_pwm2_groups), }, 202 { "pwm3", jz4740_pwm3_groups, ARRAY_SIZE(jz4740_pwm3_groups), }, 203 { "pwm4", jz4740_pwm4_groups, ARRAY_SIZE(jz4740_pwm4_groups), }, 204 { "pwm5", jz4740_pwm5_groups, ARRAY_SIZE(jz4740_pwm5_groups), }, 205 { "pwm6", jz4740_pwm6_groups, ARRAY_SIZE(jz4740_pwm6_groups), }, 206 { "pwm7", jz4740_pwm7_groups, ARRAY_SIZE(jz4740_pwm7_groups), }, 207 }; 208 209 static const struct ingenic_chip_info jz4740_chip_info = { 210 .num_chips = 4, 211 .groups = jz4740_groups, 212 .num_groups = ARRAY_SIZE(jz4740_groups), 213 .functions = jz4740_functions, 214 .num_functions = ARRAY_SIZE(jz4740_functions), 215 .pull_ups = jz4740_pull_ups, 216 .pull_downs = jz4740_pull_downs, 217 }; 218 219 static int jz4725b_mmc0_1bit_pins[] = { 0x48, 0x49, 0x5c, }; 220 static int jz4725b_mmc0_4bit_pins[] = { 0x5d, 0x5b, 0x56, }; 221 static int jz4725b_mmc1_1bit_pins[] = { 0x7a, 0x7b, 0x7c, }; 222 static int jz4725b_mmc1_4bit_pins[] = { 0x7d, 0x7e, 0x7f, }; 223 static int jz4725b_uart_data_pins[] = { 0x4c, 0x4d, }; 224 static int jz4725b_nand_cs1_pins[] = { 0x55, }; 225 static int jz4725b_nand_cs2_pins[] = { 0x56, }; 226 static int jz4725b_nand_cs3_pins[] = { 0x57, }; 227 static int jz4725b_nand_cs4_pins[] = { 0x58, }; 228 static int jz4725b_nand_cle_ale_pins[] = { 0x48, 0x49 }; 229 static int jz4725b_nand_fre_fwe_pins[] = { 0x5c, 0x5d }; 230 static int jz4725b_pwm_pwm0_pins[] = { 0x4a, }; 231 static int jz4725b_pwm_pwm1_pins[] = { 0x4b, }; 232 static int jz4725b_pwm_pwm2_pins[] = { 0x4c, }; 233 static int jz4725b_pwm_pwm3_pins[] = { 0x4d, }; 234 static int jz4725b_pwm_pwm4_pins[] = { 0x4e, }; 235 static int jz4725b_pwm_pwm5_pins[] = { 0x4f, }; 236 237 static int jz4725b_mmc0_1bit_funcs[] = { 1, 1, 1, }; 238 static int jz4725b_mmc0_4bit_funcs[] = { 1, 0, 1, }; 239 static int jz4725b_mmc1_1bit_funcs[] = { 0, 0, 0, }; 240 static int jz4725b_mmc1_4bit_funcs[] = { 0, 0, 0, }; 241 static int jz4725b_uart_data_funcs[] = { 1, 1, }; 242 static int jz4725b_nand_cs1_funcs[] = { 0, }; 243 static int jz4725b_nand_cs2_funcs[] = { 0, }; 244 static int jz4725b_nand_cs3_funcs[] = { 0, }; 245 static int jz4725b_nand_cs4_funcs[] = { 0, }; 246 static int jz4725b_nand_cle_ale_funcs[] = { 0, 0, }; 247 static int jz4725b_nand_fre_fwe_funcs[] = { 0, 0, }; 248 static int jz4725b_pwm_pwm0_funcs[] = { 0, }; 249 static int jz4725b_pwm_pwm1_funcs[] = { 0, }; 250 static int jz4725b_pwm_pwm2_funcs[] = { 0, }; 251 static int jz4725b_pwm_pwm3_funcs[] = { 0, }; 252 static int jz4725b_pwm_pwm4_funcs[] = { 0, }; 253 static int jz4725b_pwm_pwm5_funcs[] = { 0, }; 254 255 static const struct group_desc jz4725b_groups[] = { 256 INGENIC_PIN_GROUP("mmc0-1bit", jz4725b_mmc0_1bit), 257 INGENIC_PIN_GROUP("mmc0-4bit", jz4725b_mmc0_4bit), 258 INGENIC_PIN_GROUP("mmc1-1bit", jz4725b_mmc1_1bit), 259 INGENIC_PIN_GROUP("mmc1-4bit", jz4725b_mmc1_4bit), 260 INGENIC_PIN_GROUP("uart-data", jz4725b_uart_data), 261 INGENIC_PIN_GROUP("nand-cs1", jz4725b_nand_cs1), 262 INGENIC_PIN_GROUP("nand-cs2", jz4725b_nand_cs2), 263 INGENIC_PIN_GROUP("nand-cs3", jz4725b_nand_cs3), 264 INGENIC_PIN_GROUP("nand-cs4", jz4725b_nand_cs4), 265 INGENIC_PIN_GROUP("nand-cle-ale", jz4725b_nand_cle_ale), 266 INGENIC_PIN_GROUP("nand-fre-fwe", jz4725b_nand_fre_fwe), 267 INGENIC_PIN_GROUP("pwm0", jz4725b_pwm_pwm0), 268 INGENIC_PIN_GROUP("pwm1", jz4725b_pwm_pwm1), 269 INGENIC_PIN_GROUP("pwm2", jz4725b_pwm_pwm2), 270 INGENIC_PIN_GROUP("pwm3", jz4725b_pwm_pwm3), 271 INGENIC_PIN_GROUP("pwm4", jz4725b_pwm_pwm4), 272 INGENIC_PIN_GROUP("pwm5", jz4725b_pwm_pwm5), 273 }; 274 275 static const char *jz4725b_mmc0_groups[] = { "mmc0-1bit", "mmc0-4bit", }; 276 static const char *jz4725b_mmc1_groups[] = { "mmc1-1bit", "mmc1-4bit", }; 277 static const char *jz4725b_uart_groups[] = { "uart-data", }; 278 static const char *jz4725b_nand_groups[] = { 279 "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4", 280 "nand-cle-ale", "nand-fre-fwe", 281 }; 282 static const char *jz4725b_pwm0_groups[] = { "pwm0", }; 283 static const char *jz4725b_pwm1_groups[] = { "pwm1", }; 284 static const char *jz4725b_pwm2_groups[] = { "pwm2", }; 285 static const char *jz4725b_pwm3_groups[] = { "pwm3", }; 286 static const char *jz4725b_pwm4_groups[] = { "pwm4", }; 287 static const char *jz4725b_pwm5_groups[] = { "pwm5", }; 288 289 static const struct function_desc jz4725b_functions[] = { 290 { "mmc0", jz4725b_mmc0_groups, ARRAY_SIZE(jz4725b_mmc0_groups), }, 291 { "mmc1", jz4725b_mmc1_groups, ARRAY_SIZE(jz4725b_mmc1_groups), }, 292 { "uart", jz4725b_uart_groups, ARRAY_SIZE(jz4725b_uart_groups), }, 293 { "nand", jz4725b_nand_groups, ARRAY_SIZE(jz4725b_nand_groups), }, 294 { "pwm0", jz4725b_pwm0_groups, ARRAY_SIZE(jz4725b_pwm0_groups), }, 295 { "pwm1", jz4725b_pwm1_groups, ARRAY_SIZE(jz4725b_pwm1_groups), }, 296 { "pwm2", jz4725b_pwm2_groups, ARRAY_SIZE(jz4725b_pwm2_groups), }, 297 { "pwm3", jz4725b_pwm3_groups, ARRAY_SIZE(jz4725b_pwm3_groups), }, 298 { "pwm4", jz4725b_pwm4_groups, ARRAY_SIZE(jz4725b_pwm4_groups), }, 299 { "pwm5", jz4725b_pwm5_groups, ARRAY_SIZE(jz4725b_pwm5_groups), }, 300 }; 301 302 static const struct ingenic_chip_info jz4725b_chip_info = { 303 .num_chips = 4, 304 .groups = jz4725b_groups, 305 .num_groups = ARRAY_SIZE(jz4725b_groups), 306 .functions = jz4725b_functions, 307 .num_functions = ARRAY_SIZE(jz4725b_functions), 308 .pull_ups = jz4740_pull_ups, 309 .pull_downs = jz4740_pull_downs, 310 }; 311 312 static const u32 jz4770_pull_ups[6] = { 313 0x3fffffff, 0xfff0030c, 0xffffffff, 0xffff4fff, 0xfffffb7c, 0xffa7f00f, 314 }; 315 316 static const u32 jz4770_pull_downs[6] = { 317 0x00000000, 0x000f0c03, 0x00000000, 0x0000b000, 0x00000483, 0x00580ff0, 318 }; 319 320 static int jz4770_uart0_data_pins[] = { 0xa0, 0xa3, }; 321 static int jz4770_uart0_hwflow_pins[] = { 0xa1, 0xa2, }; 322 static int jz4770_uart1_data_pins[] = { 0x7a, 0x7c, }; 323 static int jz4770_uart1_hwflow_pins[] = { 0x7b, 0x7d, }; 324 static int jz4770_uart2_data_pins[] = { 0x66, 0x67, }; 325 static int jz4770_uart2_hwflow_pins[] = { 0x65, 0x64, }; 326 static int jz4770_uart3_data_pins[] = { 0x6c, 0x85, }; 327 static int jz4770_uart3_hwflow_pins[] = { 0x88, 0x89, }; 328 static int jz4770_uart4_data_pins[] = { 0x54, 0x4a, }; 329 static int jz4770_mmc0_8bit_a_pins[] = { 0x04, 0x05, 0x06, 0x07, 0x18, }; 330 static int jz4770_mmc0_4bit_a_pins[] = { 0x15, 0x16, 0x17, }; 331 static int jz4770_mmc0_1bit_a_pins[] = { 0x12, 0x13, 0x14, }; 332 static int jz4770_mmc0_4bit_e_pins[] = { 0x95, 0x96, 0x97, }; 333 static int jz4770_mmc0_1bit_e_pins[] = { 0x9c, 0x9d, 0x94, }; 334 static int jz4770_mmc1_4bit_d_pins[] = { 0x75, 0x76, 0x77, }; 335 static int jz4770_mmc1_1bit_d_pins[] = { 0x78, 0x79, 0x74, }; 336 static int jz4770_mmc1_4bit_e_pins[] = { 0x95, 0x96, 0x97, }; 337 static int jz4770_mmc1_1bit_e_pins[] = { 0x9c, 0x9d, 0x94, }; 338 static int jz4770_nemc_data_pins[] = { 339 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 340 }; 341 static int jz4770_nemc_cle_ale_pins[] = { 0x20, 0x21, }; 342 static int jz4770_nemc_addr_pins[] = { 0x22, 0x23, 0x24, 0x25, }; 343 static int jz4770_nemc_rd_we_pins[] = { 0x10, 0x11, }; 344 static int jz4770_nemc_frd_fwe_pins[] = { 0x12, 0x13, }; 345 static int jz4770_nemc_cs1_pins[] = { 0x15, }; 346 static int jz4770_nemc_cs2_pins[] = { 0x16, }; 347 static int jz4770_nemc_cs3_pins[] = { 0x17, }; 348 static int jz4770_nemc_cs4_pins[] = { 0x18, }; 349 static int jz4770_nemc_cs5_pins[] = { 0x19, }; 350 static int jz4770_nemc_cs6_pins[] = { 0x1a, }; 351 static int jz4770_i2c0_pins[] = { 0x6e, 0x6f, }; 352 static int jz4770_i2c1_pins[] = { 0x8e, 0x8f, }; 353 static int jz4770_i2c2_pins[] = { 0xb0, 0xb1, }; 354 static int jz4770_i2c3_pins[] = { 0x6a, 0x6b, }; 355 static int jz4770_i2c4_e_pins[] = { 0x8c, 0x8d, }; 356 static int jz4770_i2c4_f_pins[] = { 0xb9, 0xb8, }; 357 static int jz4770_cim_pins[] = { 358 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 359 }; 360 static int jz4770_lcd_32bit_pins[] = { 361 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 362 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 363 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 364 0x58, 0x59, 0x51, 365 }; 366 static int jz4770_pwm_pwm0_pins[] = { 0x80, }; 367 static int jz4770_pwm_pwm1_pins[] = { 0x81, }; 368 static int jz4770_pwm_pwm2_pins[] = { 0x82, }; 369 static int jz4770_pwm_pwm3_pins[] = { 0x83, }; 370 static int jz4770_pwm_pwm4_pins[] = { 0x84, }; 371 static int jz4770_pwm_pwm5_pins[] = { 0x85, }; 372 static int jz4770_pwm_pwm6_pins[] = { 0x6a, }; 373 static int jz4770_pwm_pwm7_pins[] = { 0x6b, }; 374 375 static int jz4770_uart0_data_funcs[] = { 0, 0, }; 376 static int jz4770_uart0_hwflow_funcs[] = { 0, 0, }; 377 static int jz4770_uart1_data_funcs[] = { 0, 0, }; 378 static int jz4770_uart1_hwflow_funcs[] = { 0, 0, }; 379 static int jz4770_uart2_data_funcs[] = { 1, 1, }; 380 static int jz4770_uart2_hwflow_funcs[] = { 1, 1, }; 381 static int jz4770_uart3_data_funcs[] = { 0, 1, }; 382 static int jz4770_uart3_hwflow_funcs[] = { 0, 0, }; 383 static int jz4770_uart4_data_funcs[] = { 2, 2, }; 384 static int jz4770_mmc0_8bit_a_funcs[] = { 1, 1, 1, 1, 1, }; 385 static int jz4770_mmc0_4bit_a_funcs[] = { 1, 1, 1, }; 386 static int jz4770_mmc0_1bit_a_funcs[] = { 1, 1, 0, }; 387 static int jz4770_mmc0_4bit_e_funcs[] = { 0, 0, 0, }; 388 static int jz4770_mmc0_1bit_e_funcs[] = { 0, 0, 0, }; 389 static int jz4770_mmc1_4bit_d_funcs[] = { 0, 0, 0, }; 390 static int jz4770_mmc1_1bit_d_funcs[] = { 0, 0, 0, }; 391 static int jz4770_mmc1_4bit_e_funcs[] = { 1, 1, 1, }; 392 static int jz4770_mmc1_1bit_e_funcs[] = { 1, 1, 1, }; 393 static int jz4770_nemc_data_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, }; 394 static int jz4770_nemc_cle_ale_funcs[] = { 0, 0, }; 395 static int jz4770_nemc_addr_funcs[] = { 0, 0, 0, 0, }; 396 static int jz4770_nemc_rd_we_funcs[] = { 0, 0, }; 397 static int jz4770_nemc_frd_fwe_funcs[] = { 0, 0, }; 398 static int jz4770_nemc_cs1_funcs[] = { 0, }; 399 static int jz4770_nemc_cs2_funcs[] = { 0, }; 400 static int jz4770_nemc_cs3_funcs[] = { 0, }; 401 static int jz4770_nemc_cs4_funcs[] = { 0, }; 402 static int jz4770_nemc_cs5_funcs[] = { 0, }; 403 static int jz4770_nemc_cs6_funcs[] = { 0, }; 404 static int jz4770_i2c0_funcs[] = { 0, 0, }; 405 static int jz4770_i2c1_funcs[] = { 0, 0, }; 406 static int jz4770_i2c2_funcs[] = { 2, 2, }; 407 static int jz4770_i2c3_funcs[] = { 1, 1, }; 408 static int jz4770_i2c4_e_funcs[] = { 1, 1, }; 409 static int jz4770_i2c4_f_funcs[] = { 1, 1, }; 410 static int jz4770_cim_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; 411 static int jz4770_lcd_32bit_funcs[] = { 412 0, 0, 0, 0, 0, 0, 0, 0, 413 0, 0, 0, 0, 0, 0, 0, 0, 414 0, 0, 0, 415 }; 416 static int jz4770_pwm_pwm0_funcs[] = { 0, }; 417 static int jz4770_pwm_pwm1_funcs[] = { 0, }; 418 static int jz4770_pwm_pwm2_funcs[] = { 0, }; 419 static int jz4770_pwm_pwm3_funcs[] = { 0, }; 420 static int jz4770_pwm_pwm4_funcs[] = { 0, }; 421 static int jz4770_pwm_pwm5_funcs[] = { 0, }; 422 static int jz4770_pwm_pwm6_funcs[] = { 0, }; 423 static int jz4770_pwm_pwm7_funcs[] = { 0, }; 424 425 static const struct group_desc jz4770_groups[] = { 426 INGENIC_PIN_GROUP("uart0-data", jz4770_uart0_data), 427 INGENIC_PIN_GROUP("uart0-hwflow", jz4770_uart0_hwflow), 428 INGENIC_PIN_GROUP("uart1-data", jz4770_uart1_data), 429 INGENIC_PIN_GROUP("uart1-hwflow", jz4770_uart1_hwflow), 430 INGENIC_PIN_GROUP("uart2-data", jz4770_uart2_data), 431 INGENIC_PIN_GROUP("uart2-hwflow", jz4770_uart2_hwflow), 432 INGENIC_PIN_GROUP("uart3-data", jz4770_uart3_data), 433 INGENIC_PIN_GROUP("uart3-hwflow", jz4770_uart3_hwflow), 434 INGENIC_PIN_GROUP("uart4-data", jz4770_uart4_data), 435 INGENIC_PIN_GROUP("mmc0-8bit-a", jz4770_mmc0_8bit_a), 436 INGENIC_PIN_GROUP("mmc0-4bit-a", jz4770_mmc0_4bit_a), 437 INGENIC_PIN_GROUP("mmc0-1bit-a", jz4770_mmc0_1bit_a), 438 INGENIC_PIN_GROUP("mmc0-4bit-e", jz4770_mmc0_4bit_e), 439 INGENIC_PIN_GROUP("mmc0-1bit-e", jz4770_mmc0_1bit_e), 440 INGENIC_PIN_GROUP("mmc1-4bit-d", jz4770_mmc1_4bit_d), 441 INGENIC_PIN_GROUP("mmc1-1bit-d", jz4770_mmc1_1bit_d), 442 INGENIC_PIN_GROUP("mmc1-4bit-e", jz4770_mmc1_4bit_e), 443 INGENIC_PIN_GROUP("mmc1-1bit-e", jz4770_mmc1_1bit_e), 444 INGENIC_PIN_GROUP("nemc-data", jz4770_nemc_data), 445 INGENIC_PIN_GROUP("nemc-cle-ale", jz4770_nemc_cle_ale), 446 INGENIC_PIN_GROUP("nemc-addr", jz4770_nemc_addr), 447 INGENIC_PIN_GROUP("nemc-rd-we", jz4770_nemc_rd_we), 448 INGENIC_PIN_GROUP("nemc-frd-fwe", jz4770_nemc_frd_fwe), 449 INGENIC_PIN_GROUP("nemc-cs1", jz4770_nemc_cs1), 450 INGENIC_PIN_GROUP("nemc-cs2", jz4770_nemc_cs2), 451 INGENIC_PIN_GROUP("nemc-cs3", jz4770_nemc_cs3), 452 INGENIC_PIN_GROUP("nemc-cs4", jz4770_nemc_cs4), 453 INGENIC_PIN_GROUP("nemc-cs5", jz4770_nemc_cs5), 454 INGENIC_PIN_GROUP("nemc-cs6", jz4770_nemc_cs6), 455 INGENIC_PIN_GROUP("i2c0-data", jz4770_i2c0), 456 INGENIC_PIN_GROUP("i2c1-data", jz4770_i2c1), 457 INGENIC_PIN_GROUP("i2c2-data", jz4770_i2c2), 458 INGENIC_PIN_GROUP("i2c3-data", jz4770_i2c3), 459 INGENIC_PIN_GROUP("i2c4-data-e", jz4770_i2c4_e), 460 INGENIC_PIN_GROUP("i2c4-data-f", jz4770_i2c4_f), 461 INGENIC_PIN_GROUP("cim-data", jz4770_cim), 462 INGENIC_PIN_GROUP("lcd-32bit", jz4770_lcd_32bit), 463 { "lcd-no-pins", }, 464 INGENIC_PIN_GROUP("pwm0", jz4770_pwm_pwm0), 465 INGENIC_PIN_GROUP("pwm1", jz4770_pwm_pwm1), 466 INGENIC_PIN_GROUP("pwm2", jz4770_pwm_pwm2), 467 INGENIC_PIN_GROUP("pwm3", jz4770_pwm_pwm3), 468 INGENIC_PIN_GROUP("pwm4", jz4770_pwm_pwm4), 469 INGENIC_PIN_GROUP("pwm5", jz4770_pwm_pwm5), 470 INGENIC_PIN_GROUP("pwm6", jz4770_pwm_pwm6), 471 INGENIC_PIN_GROUP("pwm7", jz4770_pwm_pwm7), 472 }; 473 474 static const char *jz4770_uart0_groups[] = { "uart0-data", "uart0-hwflow", }; 475 static const char *jz4770_uart1_groups[] = { "uart1-data", "uart1-hwflow", }; 476 static const char *jz4770_uart2_groups[] = { "uart2-data", "uart2-hwflow", }; 477 static const char *jz4770_uart3_groups[] = { "uart3-data", "uart3-hwflow", }; 478 static const char *jz4770_uart4_groups[] = { "uart4-data", }; 479 static const char *jz4770_mmc0_groups[] = { 480 "mmc0-8bit-a", "mmc0-4bit-a", "mmc0-1bit-a", 481 "mmc0-1bit-e", "mmc0-4bit-e", 482 }; 483 static const char *jz4770_mmc1_groups[] = { 484 "mmc1-1bit-d", "mmc1-4bit-d", "mmc1-1bit-e", "mmc1-4bit-e", 485 }; 486 static const char *jz4770_nemc_groups[] = { 487 "nemc-data", "nemc-cle-ale", "nemc-addr", "nemc-rd-we", "nemc-frd-fwe", 488 }; 489 static const char *jz4770_cs1_groups[] = { "nemc-cs1", }; 490 static const char *jz4770_cs6_groups[] = { "nemc-cs6", }; 491 static const char *jz4770_i2c0_groups[] = { "i2c0-data", }; 492 static const char *jz4770_i2c1_groups[] = { "i2c1-data", }; 493 static const char *jz4770_i2c2_groups[] = { "i2c2-data", }; 494 static const char *jz4770_i2c3_groups[] = { "i2c3-data", }; 495 static const char *jz4770_i2c4_groups[] = { "i2c4-data-e", "i2c4-data-f", }; 496 static const char *jz4770_cim_groups[] = { "cim-data", }; 497 static const char *jz4770_lcd_groups[] = { "lcd-32bit", "lcd-no-pins", }; 498 static const char *jz4770_pwm0_groups[] = { "pwm0", }; 499 static const char *jz4770_pwm1_groups[] = { "pwm1", }; 500 static const char *jz4770_pwm2_groups[] = { "pwm2", }; 501 static const char *jz4770_pwm3_groups[] = { "pwm3", }; 502 static const char *jz4770_pwm4_groups[] = { "pwm4", }; 503 static const char *jz4770_pwm5_groups[] = { "pwm5", }; 504 static const char *jz4770_pwm6_groups[] = { "pwm6", }; 505 static const char *jz4770_pwm7_groups[] = { "pwm7", }; 506 507 static const struct function_desc jz4770_functions[] = { 508 { "uart0", jz4770_uart0_groups, ARRAY_SIZE(jz4770_uart0_groups), }, 509 { "uart1", jz4770_uart1_groups, ARRAY_SIZE(jz4770_uart1_groups), }, 510 { "uart2", jz4770_uart2_groups, ARRAY_SIZE(jz4770_uart2_groups), }, 511 { "uart3", jz4770_uart3_groups, ARRAY_SIZE(jz4770_uart3_groups), }, 512 { "uart4", jz4770_uart4_groups, ARRAY_SIZE(jz4770_uart4_groups), }, 513 { "mmc0", jz4770_mmc0_groups, ARRAY_SIZE(jz4770_mmc0_groups), }, 514 { "mmc1", jz4770_mmc1_groups, ARRAY_SIZE(jz4770_mmc1_groups), }, 515 { "nemc", jz4770_nemc_groups, ARRAY_SIZE(jz4770_nemc_groups), }, 516 { "nemc-cs1", jz4770_cs1_groups, ARRAY_SIZE(jz4770_cs1_groups), }, 517 { "nemc-cs6", jz4770_cs6_groups, ARRAY_SIZE(jz4770_cs6_groups), }, 518 { "i2c0", jz4770_i2c0_groups, ARRAY_SIZE(jz4770_i2c0_groups), }, 519 { "i2c1", jz4770_i2c1_groups, ARRAY_SIZE(jz4770_i2c1_groups), }, 520 { "i2c2", jz4770_i2c2_groups, ARRAY_SIZE(jz4770_i2c2_groups), }, 521 { "i2c3", jz4770_i2c3_groups, ARRAY_SIZE(jz4770_i2c3_groups), }, 522 { "i2c4", jz4770_i2c4_groups, ARRAY_SIZE(jz4770_i2c4_groups), }, 523 { "cim", jz4770_cim_groups, ARRAY_SIZE(jz4770_cim_groups), }, 524 { "lcd", jz4770_lcd_groups, ARRAY_SIZE(jz4770_lcd_groups), }, 525 { "pwm0", jz4770_pwm0_groups, ARRAY_SIZE(jz4770_pwm0_groups), }, 526 { "pwm1", jz4770_pwm1_groups, ARRAY_SIZE(jz4770_pwm1_groups), }, 527 { "pwm2", jz4770_pwm2_groups, ARRAY_SIZE(jz4770_pwm2_groups), }, 528 { "pwm3", jz4770_pwm3_groups, ARRAY_SIZE(jz4770_pwm3_groups), }, 529 { "pwm4", jz4770_pwm4_groups, ARRAY_SIZE(jz4770_pwm4_groups), }, 530 { "pwm5", jz4770_pwm5_groups, ARRAY_SIZE(jz4770_pwm5_groups), }, 531 { "pwm6", jz4770_pwm6_groups, ARRAY_SIZE(jz4770_pwm6_groups), }, 532 { "pwm7", jz4770_pwm7_groups, ARRAY_SIZE(jz4770_pwm7_groups), }, 533 }; 534 535 static const struct ingenic_chip_info jz4770_chip_info = { 536 .num_chips = 6, 537 .groups = jz4770_groups, 538 .num_groups = ARRAY_SIZE(jz4770_groups), 539 .functions = jz4770_functions, 540 .num_functions = ARRAY_SIZE(jz4770_functions), 541 .pull_ups = jz4770_pull_ups, 542 .pull_downs = jz4770_pull_downs, 543 }; 544 545 static u32 gpio_ingenic_read_reg(struct ingenic_gpio_chip *jzgc, u8 reg) 546 { 547 unsigned int val; 548 549 regmap_read(jzgc->jzpc->map, jzgc->reg_base + reg, &val); 550 551 return (u32) val; 552 } 553 554 static void gpio_ingenic_set_bit(struct ingenic_gpio_chip *jzgc, 555 u8 reg, u8 offset, bool set) 556 { 557 if (set) 558 reg = REG_SET(reg); 559 else 560 reg = REG_CLEAR(reg); 561 562 regmap_write(jzgc->jzpc->map, jzgc->reg_base + reg, BIT(offset)); 563 } 564 565 static inline bool ingenic_gpio_get_value(struct ingenic_gpio_chip *jzgc, 566 u8 offset) 567 { 568 unsigned int val = gpio_ingenic_read_reg(jzgc, GPIO_PIN); 569 570 return !!(val & BIT(offset)); 571 } 572 573 static void ingenic_gpio_set_value(struct ingenic_gpio_chip *jzgc, 574 u8 offset, int value) 575 { 576 if (jzgc->jzpc->version >= ID_JZ4770) 577 gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_PAT0, offset, !!value); 578 else 579 gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value); 580 } 581 582 static void irq_set_type(struct ingenic_gpio_chip *jzgc, 583 u8 offset, unsigned int type) 584 { 585 u8 reg1, reg2; 586 587 if (jzgc->jzpc->version >= ID_JZ4770) { 588 reg1 = JZ4770_GPIO_PAT1; 589 reg2 = JZ4770_GPIO_PAT0; 590 } else { 591 reg1 = JZ4740_GPIO_TRIG; 592 reg2 = JZ4740_GPIO_DIR; 593 } 594 595 switch (type) { 596 case IRQ_TYPE_EDGE_RISING: 597 gpio_ingenic_set_bit(jzgc, reg2, offset, true); 598 gpio_ingenic_set_bit(jzgc, reg1, offset, true); 599 break; 600 case IRQ_TYPE_EDGE_FALLING: 601 gpio_ingenic_set_bit(jzgc, reg2, offset, false); 602 gpio_ingenic_set_bit(jzgc, reg1, offset, true); 603 break; 604 case IRQ_TYPE_LEVEL_HIGH: 605 gpio_ingenic_set_bit(jzgc, reg2, offset, true); 606 gpio_ingenic_set_bit(jzgc, reg1, offset, false); 607 break; 608 case IRQ_TYPE_LEVEL_LOW: 609 default: 610 gpio_ingenic_set_bit(jzgc, reg2, offset, false); 611 gpio_ingenic_set_bit(jzgc, reg1, offset, false); 612 break; 613 } 614 } 615 616 static void ingenic_gpio_irq_mask(struct irq_data *irqd) 617 { 618 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 619 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 620 621 gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, true); 622 } 623 624 static void ingenic_gpio_irq_unmask(struct irq_data *irqd) 625 { 626 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 627 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 628 629 gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, false); 630 } 631 632 static void ingenic_gpio_irq_enable(struct irq_data *irqd) 633 { 634 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 635 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 636 int irq = irqd->hwirq; 637 638 if (jzgc->jzpc->version >= ID_JZ4770) 639 gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, true); 640 else 641 gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true); 642 643 ingenic_gpio_irq_unmask(irqd); 644 } 645 646 static void ingenic_gpio_irq_disable(struct irq_data *irqd) 647 { 648 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 649 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 650 int irq = irqd->hwirq; 651 652 ingenic_gpio_irq_mask(irqd); 653 654 if (jzgc->jzpc->version >= ID_JZ4770) 655 gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, false); 656 else 657 gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false); 658 } 659 660 static void ingenic_gpio_irq_ack(struct irq_data *irqd) 661 { 662 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 663 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 664 int irq = irqd->hwirq; 665 bool high; 666 667 if (irqd_get_trigger_type(irqd) == IRQ_TYPE_EDGE_BOTH) { 668 /* 669 * Switch to an interrupt for the opposite edge to the one that 670 * triggered the interrupt being ACKed. 671 */ 672 high = ingenic_gpio_get_value(jzgc, irq); 673 if (high) 674 irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_FALLING); 675 else 676 irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_RISING); 677 } 678 679 if (jzgc->jzpc->version >= ID_JZ4770) 680 gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_FLAG, irq, false); 681 else 682 gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true); 683 } 684 685 static int ingenic_gpio_irq_set_type(struct irq_data *irqd, unsigned int type) 686 { 687 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 688 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 689 690 switch (type) { 691 case IRQ_TYPE_EDGE_BOTH: 692 case IRQ_TYPE_EDGE_RISING: 693 case IRQ_TYPE_EDGE_FALLING: 694 irq_set_handler_locked(irqd, handle_edge_irq); 695 break; 696 case IRQ_TYPE_LEVEL_HIGH: 697 case IRQ_TYPE_LEVEL_LOW: 698 irq_set_handler_locked(irqd, handle_level_irq); 699 break; 700 default: 701 irq_set_handler_locked(irqd, handle_bad_irq); 702 } 703 704 if (type == IRQ_TYPE_EDGE_BOTH) { 705 /* 706 * The hardware does not support interrupts on both edges. The 707 * best we can do is to set up a single-edge interrupt and then 708 * switch to the opposing edge when ACKing the interrupt. 709 */ 710 bool high = ingenic_gpio_get_value(jzgc, irqd->hwirq); 711 712 type = high ? IRQ_TYPE_EDGE_FALLING : IRQ_TYPE_EDGE_RISING; 713 } 714 715 irq_set_type(jzgc, irqd->hwirq, type); 716 return 0; 717 } 718 719 static int ingenic_gpio_irq_set_wake(struct irq_data *irqd, unsigned int on) 720 { 721 struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); 722 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 723 724 return irq_set_irq_wake(jzgc->irq, on); 725 } 726 727 static void ingenic_gpio_irq_handler(struct irq_desc *desc) 728 { 729 struct gpio_chip *gc = irq_desc_get_handler_data(desc); 730 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 731 struct irq_chip *irq_chip = irq_data_get_irq_chip(&desc->irq_data); 732 unsigned long flag, i; 733 734 chained_irq_enter(irq_chip, desc); 735 736 if (jzgc->jzpc->version >= ID_JZ4770) 737 flag = gpio_ingenic_read_reg(jzgc, JZ4770_GPIO_FLAG); 738 else 739 flag = gpio_ingenic_read_reg(jzgc, JZ4740_GPIO_FLAG); 740 741 for_each_set_bit(i, &flag, 32) 742 generic_handle_irq(irq_linear_revmap(gc->irq.domain, i)); 743 chained_irq_exit(irq_chip, desc); 744 } 745 746 static void ingenic_gpio_set(struct gpio_chip *gc, 747 unsigned int offset, int value) 748 { 749 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 750 751 ingenic_gpio_set_value(jzgc, offset, value); 752 } 753 754 static int ingenic_gpio_get(struct gpio_chip *gc, unsigned int offset) 755 { 756 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 757 758 return (int) ingenic_gpio_get_value(jzgc, offset); 759 } 760 761 static int ingenic_gpio_direction_input(struct gpio_chip *gc, 762 unsigned int offset) 763 { 764 return pinctrl_gpio_direction_input(gc->base + offset); 765 } 766 767 static int ingenic_gpio_direction_output(struct gpio_chip *gc, 768 unsigned int offset, int value) 769 { 770 ingenic_gpio_set(gc, offset, value); 771 return pinctrl_gpio_direction_output(gc->base + offset); 772 } 773 774 static inline void ingenic_config_pin(struct ingenic_pinctrl *jzpc, 775 unsigned int pin, u8 reg, bool set) 776 { 777 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 778 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 779 780 regmap_write(jzpc->map, offt * 0x100 + 781 (set ? REG_SET(reg) : REG_CLEAR(reg)), BIT(idx)); 782 } 783 784 static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc, 785 unsigned int pin, u8 reg) 786 { 787 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 788 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 789 unsigned int val; 790 791 regmap_read(jzpc->map, offt * 0x100 + reg, &val); 792 793 return val & BIT(idx); 794 } 795 796 static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset) 797 { 798 struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc); 799 struct ingenic_pinctrl *jzpc = jzgc->jzpc; 800 unsigned int pin = gc->base + offset; 801 802 if (jzpc->version >= ID_JZ4770) 803 return ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PAT1); 804 805 if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_SELECT)) 806 return true; 807 808 return !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_DIR); 809 } 810 811 static const struct pinctrl_ops ingenic_pctlops = { 812 .get_groups_count = pinctrl_generic_get_group_count, 813 .get_group_name = pinctrl_generic_get_group_name, 814 .get_group_pins = pinctrl_generic_get_group_pins, 815 .dt_node_to_map = pinconf_generic_dt_node_to_map_all, 816 .dt_free_map = pinconf_generic_dt_free_map, 817 }; 818 819 static int ingenic_pinmux_set_pin_fn(struct ingenic_pinctrl *jzpc, 820 int pin, int func) 821 { 822 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 823 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 824 825 dev_dbg(jzpc->dev, "set pin P%c%u to function %u\n", 826 'A' + offt, idx, func); 827 828 if (jzpc->version >= ID_JZ4770) { 829 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false); 830 ingenic_config_pin(jzpc, pin, GPIO_MSK, false); 831 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2); 832 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1); 833 } else { 834 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, true); 835 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_TRIG, func & 0x2); 836 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, func > 0); 837 } 838 839 return 0; 840 } 841 842 static int ingenic_pinmux_set_mux(struct pinctrl_dev *pctldev, 843 unsigned int selector, unsigned int group) 844 { 845 struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); 846 struct function_desc *func; 847 struct group_desc *grp; 848 unsigned int i; 849 850 func = pinmux_generic_get_function(pctldev, selector); 851 if (!func) 852 return -EINVAL; 853 854 grp = pinctrl_generic_get_group(pctldev, group); 855 if (!grp) 856 return -EINVAL; 857 858 dev_dbg(pctldev->dev, "enable function %s group %s\n", 859 func->name, grp->name); 860 861 for (i = 0; i < grp->num_pins; i++) { 862 int *pin_modes = grp->data; 863 864 ingenic_pinmux_set_pin_fn(jzpc, grp->pins[i], pin_modes[i]); 865 } 866 867 return 0; 868 } 869 870 static int ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev, 871 struct pinctrl_gpio_range *range, 872 unsigned int pin, bool input) 873 { 874 struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); 875 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 876 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 877 878 dev_dbg(pctldev->dev, "set pin P%c%u to %sput\n", 879 'A' + offt, idx, input ? "in" : "out"); 880 881 if (jzpc->version >= ID_JZ4770) { 882 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false); 883 ingenic_config_pin(jzpc, pin, GPIO_MSK, true); 884 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input); 885 } else { 886 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, false); 887 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DIR, !input); 888 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, false); 889 } 890 891 return 0; 892 } 893 894 static const struct pinmux_ops ingenic_pmxops = { 895 .get_functions_count = pinmux_generic_get_function_count, 896 .get_function_name = pinmux_generic_get_function_name, 897 .get_function_groups = pinmux_generic_get_function_groups, 898 .set_mux = ingenic_pinmux_set_mux, 899 .gpio_set_direction = ingenic_pinmux_gpio_set_direction, 900 }; 901 902 static int ingenic_pinconf_get(struct pinctrl_dev *pctldev, 903 unsigned int pin, unsigned long *config) 904 { 905 struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); 906 enum pin_config_param param = pinconf_to_config_param(*config); 907 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 908 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 909 bool pull; 910 911 if (jzpc->version >= ID_JZ4770) 912 pull = !ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PEN); 913 else 914 pull = !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_PULL_DIS); 915 916 switch (param) { 917 case PIN_CONFIG_BIAS_DISABLE: 918 if (pull) 919 return -EINVAL; 920 break; 921 922 case PIN_CONFIG_BIAS_PULL_UP: 923 if (!pull || !(jzpc->info->pull_ups[offt] & BIT(idx))) 924 return -EINVAL; 925 break; 926 927 case PIN_CONFIG_BIAS_PULL_DOWN: 928 if (!pull || !(jzpc->info->pull_downs[offt] & BIT(idx))) 929 return -EINVAL; 930 break; 931 932 default: 933 return -ENOTSUPP; 934 } 935 936 *config = pinconf_to_config_packed(param, 1); 937 return 0; 938 } 939 940 static void ingenic_set_bias(struct ingenic_pinctrl *jzpc, 941 unsigned int pin, bool enabled) 942 { 943 if (jzpc->version >= ID_JZ4770) 944 ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PEN, !enabled); 945 else 946 ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !enabled); 947 } 948 949 static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, 950 unsigned long *configs, unsigned int num_configs) 951 { 952 struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); 953 unsigned int idx = pin % PINS_PER_GPIO_CHIP; 954 unsigned int offt = pin / PINS_PER_GPIO_CHIP; 955 unsigned int cfg; 956 957 for (cfg = 0; cfg < num_configs; cfg++) { 958 switch (pinconf_to_config_param(configs[cfg])) { 959 case PIN_CONFIG_BIAS_DISABLE: 960 case PIN_CONFIG_BIAS_PULL_UP: 961 case PIN_CONFIG_BIAS_PULL_DOWN: 962 continue; 963 default: 964 return -ENOTSUPP; 965 } 966 } 967 968 for (cfg = 0; cfg < num_configs; cfg++) { 969 switch (pinconf_to_config_param(configs[cfg])) { 970 case PIN_CONFIG_BIAS_DISABLE: 971 dev_dbg(jzpc->dev, "disable pull-over for pin P%c%u\n", 972 'A' + offt, idx); 973 ingenic_set_bias(jzpc, pin, false); 974 break; 975 976 case PIN_CONFIG_BIAS_PULL_UP: 977 if (!(jzpc->info->pull_ups[offt] & BIT(idx))) 978 return -EINVAL; 979 dev_dbg(jzpc->dev, "set pull-up for pin P%c%u\n", 980 'A' + offt, idx); 981 ingenic_set_bias(jzpc, pin, true); 982 break; 983 984 case PIN_CONFIG_BIAS_PULL_DOWN: 985 if (!(jzpc->info->pull_downs[offt] & BIT(idx))) 986 return -EINVAL; 987 dev_dbg(jzpc->dev, "set pull-down for pin P%c%u\n", 988 'A' + offt, idx); 989 ingenic_set_bias(jzpc, pin, true); 990 break; 991 992 default: 993 unreachable(); 994 } 995 } 996 997 return 0; 998 } 999 1000 static int ingenic_pinconf_group_get(struct pinctrl_dev *pctldev, 1001 unsigned int group, unsigned long *config) 1002 { 1003 const unsigned int *pins; 1004 unsigned int i, npins, old = 0; 1005 int ret; 1006 1007 ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); 1008 if (ret) 1009 return ret; 1010 1011 for (i = 0; i < npins; i++) { 1012 if (ingenic_pinconf_get(pctldev, pins[i], config)) 1013 return -ENOTSUPP; 1014 1015 /* configs do not match between two pins */ 1016 if (i && (old != *config)) 1017 return -ENOTSUPP; 1018 1019 old = *config; 1020 } 1021 1022 return 0; 1023 } 1024 1025 static int ingenic_pinconf_group_set(struct pinctrl_dev *pctldev, 1026 unsigned int group, unsigned long *configs, 1027 unsigned int num_configs) 1028 { 1029 const unsigned int *pins; 1030 unsigned int i, npins; 1031 int ret; 1032 1033 ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); 1034 if (ret) 1035 return ret; 1036 1037 for (i = 0; i < npins; i++) { 1038 ret = ingenic_pinconf_set(pctldev, 1039 pins[i], configs, num_configs); 1040 if (ret) 1041 return ret; 1042 } 1043 1044 return 0; 1045 } 1046 1047 static const struct pinconf_ops ingenic_confops = { 1048 .is_generic = true, 1049 .pin_config_get = ingenic_pinconf_get, 1050 .pin_config_set = ingenic_pinconf_set, 1051 .pin_config_group_get = ingenic_pinconf_group_get, 1052 .pin_config_group_set = ingenic_pinconf_group_set, 1053 }; 1054 1055 static const struct regmap_config ingenic_pinctrl_regmap_config = { 1056 .reg_bits = 32, 1057 .val_bits = 32, 1058 .reg_stride = 4, 1059 }; 1060 1061 static const struct of_device_id ingenic_pinctrl_of_match[] = { 1062 { .compatible = "ingenic,jz4740-pinctrl", .data = (void *) ID_JZ4740 }, 1063 { .compatible = "ingenic,jz4725b-pinctrl", .data = (void *)ID_JZ4725B }, 1064 { .compatible = "ingenic,jz4770-pinctrl", .data = (void *) ID_JZ4770 }, 1065 { .compatible = "ingenic,jz4780-pinctrl", .data = (void *) ID_JZ4780 }, 1066 {}, 1067 }; 1068 1069 static const struct of_device_id ingenic_gpio_of_match[] __initconst = { 1070 { .compatible = "ingenic,jz4740-gpio", }, 1071 { .compatible = "ingenic,jz4770-gpio", }, 1072 { .compatible = "ingenic,jz4780-gpio", }, 1073 {}, 1074 }; 1075 1076 static int __init ingenic_gpio_probe(struct ingenic_pinctrl *jzpc, 1077 struct device_node *node) 1078 { 1079 struct ingenic_gpio_chip *jzgc; 1080 struct device *dev = jzpc->dev; 1081 unsigned int bank; 1082 int err; 1083 1084 err = of_property_read_u32(node, "reg", &bank); 1085 if (err) { 1086 dev_err(dev, "Cannot read \"reg\" property: %i\n", err); 1087 return err; 1088 } 1089 1090 jzgc = devm_kzalloc(dev, sizeof(*jzgc), GFP_KERNEL); 1091 if (!jzgc) 1092 return -ENOMEM; 1093 1094 jzgc->jzpc = jzpc; 1095 jzgc->reg_base = bank * 0x100; 1096 1097 jzgc->gc.label = devm_kasprintf(dev, GFP_KERNEL, "GPIO%c", 'A' + bank); 1098 if (!jzgc->gc.label) 1099 return -ENOMEM; 1100 1101 /* DO NOT EXPAND THIS: FOR BACKWARD GPIO NUMBERSPACE COMPATIBIBILITY 1102 * ONLY: WORK TO TRANSITION CONSUMERS TO USE THE GPIO DESCRIPTOR API IN 1103 * <linux/gpio/consumer.h> INSTEAD. 1104 */ 1105 jzgc->gc.base = bank * 32; 1106 1107 jzgc->gc.ngpio = 32; 1108 jzgc->gc.parent = dev; 1109 jzgc->gc.of_node = node; 1110 jzgc->gc.owner = THIS_MODULE; 1111 1112 jzgc->gc.set = ingenic_gpio_set; 1113 jzgc->gc.get = ingenic_gpio_get; 1114 jzgc->gc.direction_input = ingenic_gpio_direction_input; 1115 jzgc->gc.direction_output = ingenic_gpio_direction_output; 1116 jzgc->gc.get_direction = ingenic_gpio_get_direction; 1117 1118 if (of_property_read_bool(node, "gpio-ranges")) { 1119 jzgc->gc.request = gpiochip_generic_request; 1120 jzgc->gc.free = gpiochip_generic_free; 1121 } 1122 1123 err = devm_gpiochip_add_data(dev, &jzgc->gc, jzgc); 1124 if (err) 1125 return err; 1126 1127 jzgc->irq = irq_of_parse_and_map(node, 0); 1128 if (!jzgc->irq) 1129 return -EINVAL; 1130 1131 jzgc->irq_chip.name = jzgc->gc.label; 1132 jzgc->irq_chip.irq_enable = ingenic_gpio_irq_enable; 1133 jzgc->irq_chip.irq_disable = ingenic_gpio_irq_disable; 1134 jzgc->irq_chip.irq_unmask = ingenic_gpio_irq_unmask; 1135 jzgc->irq_chip.irq_mask = ingenic_gpio_irq_mask; 1136 jzgc->irq_chip.irq_ack = ingenic_gpio_irq_ack; 1137 jzgc->irq_chip.irq_set_type = ingenic_gpio_irq_set_type; 1138 jzgc->irq_chip.irq_set_wake = ingenic_gpio_irq_set_wake; 1139 jzgc->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND; 1140 1141 err = gpiochip_irqchip_add(&jzgc->gc, &jzgc->irq_chip, 0, 1142 handle_level_irq, IRQ_TYPE_NONE); 1143 if (err) 1144 return err; 1145 1146 gpiochip_set_chained_irqchip(&jzgc->gc, &jzgc->irq_chip, 1147 jzgc->irq, ingenic_gpio_irq_handler); 1148 return 0; 1149 } 1150 1151 static int __init ingenic_pinctrl_probe(struct platform_device *pdev) 1152 { 1153 struct device *dev = &pdev->dev; 1154 struct ingenic_pinctrl *jzpc; 1155 struct pinctrl_desc *pctl_desc; 1156 void __iomem *base; 1157 const struct platform_device_id *id = platform_get_device_id(pdev); 1158 const struct of_device_id *of_id = of_match_device( 1159 ingenic_pinctrl_of_match, dev); 1160 const struct ingenic_chip_info *chip_info; 1161 struct device_node *node; 1162 unsigned int i; 1163 int err; 1164 1165 jzpc = devm_kzalloc(dev, sizeof(*jzpc), GFP_KERNEL); 1166 if (!jzpc) 1167 return -ENOMEM; 1168 1169 base = devm_ioremap_resource(dev, 1170 platform_get_resource(pdev, IORESOURCE_MEM, 0)); 1171 if (IS_ERR(base)) 1172 return PTR_ERR(base); 1173 1174 jzpc->map = devm_regmap_init_mmio(dev, base, 1175 &ingenic_pinctrl_regmap_config); 1176 if (IS_ERR(jzpc->map)) { 1177 dev_err(dev, "Failed to create regmap\n"); 1178 return PTR_ERR(jzpc->map); 1179 } 1180 1181 jzpc->dev = dev; 1182 1183 if (of_id) 1184 jzpc->version = (enum jz_version)of_id->data; 1185 else 1186 jzpc->version = (enum jz_version)id->driver_data; 1187 1188 if (jzpc->version >= ID_JZ4770) 1189 chip_info = &jz4770_chip_info; 1190 else if (jzpc->version >= ID_JZ4725B) 1191 chip_info = &jz4725b_chip_info; 1192 else 1193 chip_info = &jz4740_chip_info; 1194 jzpc->info = chip_info; 1195 1196 pctl_desc = devm_kzalloc(&pdev->dev, sizeof(*pctl_desc), GFP_KERNEL); 1197 if (!pctl_desc) 1198 return -ENOMEM; 1199 1200 /* fill in pinctrl_desc structure */ 1201 pctl_desc->name = dev_name(dev); 1202 pctl_desc->owner = THIS_MODULE; 1203 pctl_desc->pctlops = &ingenic_pctlops; 1204 pctl_desc->pmxops = &ingenic_pmxops; 1205 pctl_desc->confops = &ingenic_confops; 1206 pctl_desc->npins = chip_info->num_chips * PINS_PER_GPIO_CHIP; 1207 pctl_desc->pins = jzpc->pdesc = devm_kcalloc(&pdev->dev, 1208 pctl_desc->npins, sizeof(*jzpc->pdesc), GFP_KERNEL); 1209 if (!jzpc->pdesc) 1210 return -ENOMEM; 1211 1212 for (i = 0; i < pctl_desc->npins; i++) { 1213 jzpc->pdesc[i].number = i; 1214 jzpc->pdesc[i].name = kasprintf(GFP_KERNEL, "P%c%d", 1215 'A' + (i / PINS_PER_GPIO_CHIP), 1216 i % PINS_PER_GPIO_CHIP); 1217 } 1218 1219 jzpc->pctl = devm_pinctrl_register(dev, pctl_desc, jzpc); 1220 if (IS_ERR(jzpc->pctl)) { 1221 dev_err(dev, "Failed to register pinctrl\n"); 1222 return PTR_ERR(jzpc->pctl); 1223 } 1224 1225 for (i = 0; i < chip_info->num_groups; i++) { 1226 const struct group_desc *group = &chip_info->groups[i]; 1227 1228 err = pinctrl_generic_add_group(jzpc->pctl, group->name, 1229 group->pins, group->num_pins, group->data); 1230 if (err) { 1231 dev_err(dev, "Failed to register group %s\n", 1232 group->name); 1233 return err; 1234 } 1235 } 1236 1237 for (i = 0; i < chip_info->num_functions; i++) { 1238 const struct function_desc *func = &chip_info->functions[i]; 1239 1240 err = pinmux_generic_add_function(jzpc->pctl, func->name, 1241 func->group_names, func->num_group_names, 1242 func->data); 1243 if (err) { 1244 dev_err(dev, "Failed to register function %s\n", 1245 func->name); 1246 return err; 1247 } 1248 } 1249 1250 dev_set_drvdata(dev, jzpc->map); 1251 1252 for_each_child_of_node(dev->of_node, node) { 1253 if (of_match_node(ingenic_gpio_of_match, node)) { 1254 err = ingenic_gpio_probe(jzpc, node); 1255 if (err) 1256 return err; 1257 } 1258 } 1259 1260 return 0; 1261 } 1262 1263 static const struct platform_device_id ingenic_pinctrl_ids[] = { 1264 { "jz4740-pinctrl", ID_JZ4740 }, 1265 { "jz4725b-pinctrl", ID_JZ4725B }, 1266 { "jz4770-pinctrl", ID_JZ4770 }, 1267 { "jz4780-pinctrl", ID_JZ4780 }, 1268 {}, 1269 }; 1270 1271 static struct platform_driver ingenic_pinctrl_driver = { 1272 .driver = { 1273 .name = "pinctrl-ingenic", 1274 .of_match_table = of_match_ptr(ingenic_pinctrl_of_match), 1275 }, 1276 .id_table = ingenic_pinctrl_ids, 1277 }; 1278 1279 static int __init ingenic_pinctrl_drv_register(void) 1280 { 1281 return platform_driver_probe(&ingenic_pinctrl_driver, 1282 ingenic_pinctrl_probe); 1283 } 1284 subsys_initcall(ingenic_pinctrl_drv_register); 1285