drivers/pinctrl/vt8500/pinctrl-wm8850.c

   1 /*
   2  * Pinctrl data for Wondermedia WM8850 SoC
   3  *
   4  * Copyright (c) 2013 Tony Prisk <linux@prisktech.co.nz>
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  */
  15
  16 #include <linux/io.h>
  17 #include <linux/init.h>
  18 #include <linux/pinctrl/pinctrl.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/slab.h>
  21
  22 #include "pinctrl-wmt.h"
  23
  24 /*
  25  * Describe the register offsets within the GPIO memory space
  26  * The dedicated external GPIO's should always be listed in bank 0
  27  * so they are exported in the 0..31 range which is what users
  28  * expect.
  29  *
  30  * Do not reorder these banks as it will change the pin numbering
  31  */
  32 static const struct wmt_pinctrl_bank_registers wm8850_banks[] = {
  33         WMT_PINCTRL_BANK(0x40, 0x80, 0xC0, 0x00, 0x480, 0x4C0),         /* 0 */
  34         WMT_PINCTRL_BANK(0x44, 0x84, 0xC4, 0x04, 0x484, 0x4C4),         /* 1 */
  35         WMT_PINCTRL_BANK(0x48, 0x88, 0xC8, 0x08, 0x488, 0x4C8),         /* 2 */
  36         WMT_PINCTRL_BANK(0x4C, 0x8C, 0xCC, 0x0C, 0x48C, 0x4CC),         /* 3 */
  37         WMT_PINCTRL_BANK(0x50, 0x90, 0xD0, 0x10, 0x490, 0x4D0),         /* 4 */
  38         WMT_PINCTRL_BANK(0x54, 0x94, 0xD4, 0x14, 0x494, 0x4D4),         /* 5 */
  39         WMT_PINCTRL_BANK(0x58, 0x98, 0xD8, 0x18, 0x498, 0x4D8),         /* 6 */
  40         WMT_PINCTRL_BANK(0x5C, 0x9C, 0xDC, 0x1C, 0x49C, 0x4DC),         /* 7 */
  41         WMT_PINCTRL_BANK(0x60, 0xA0, 0xE0, 0x20, 0x4A0, 0x4E0),         /* 8 */
  42         WMT_PINCTRL_BANK(0x70, 0xB0, 0xF0, 0x30, 0x4B0, 0x4F0),         /* 9 */
  43         WMT_PINCTRL_BANK(0x7C, 0xBC, 0xDC, 0x3C, 0x4BC, 0x4FC),         /* 10 */
  44 };
  45
  46 /* Please keep sorted by bank/bit */
  47 #define WMT_PIN_EXTGPIO0        WMT_PIN(0, 0)
  48 #define WMT_PIN_EXTGPIO1        WMT_PIN(0, 1)
  49 #define WMT_PIN_EXTGPIO2        WMT_PIN(0, 2)
  50 #define WMT_PIN_EXTGPIO3        WMT_PIN(0, 3)
  51 #define WMT_PIN_EXTGPIO4        WMT_PIN(0, 4)
  52 #define WMT_PIN_EXTGPIO5        WMT_PIN(0, 5)
  53 #define WMT_PIN_EXTGPIO6        WMT_PIN(0, 6)
  54 #define WMT_PIN_EXTGPIO7        WMT_PIN(0, 7)
  55 #define WMT_PIN_WAKEUP0         WMT_PIN(0, 16)
  56 #define WMT_PIN_WAKEUP1         WMT_PIN(0, 17)
  57 #define WMT_PIN_WAKEUP2         WMT_PIN(0, 18)
  58 #define WMT_PIN_WAKEUP3         WMT_PIN(0, 19)
  59 #define WMT_PIN_SUSGPIO0        WMT_PIN(0, 21)
  60 #define WMT_PIN_SUSGPIO1        WMT_PIN(0, 22)
  61 #define WMT_PIN_SD0CD           WMT_PIN(0, 28)
  62 #define WMT_PIN_VDOUT0          WMT_PIN(1, 0)
  63 #define WMT_PIN_VDOUT1          WMT_PIN(1, 1)
  64 #define WMT_PIN_VDOUT2          WMT_PIN(1, 2)
  65 #define WMT_PIN_VDOUT3          WMT_PIN(1, 3)
  66 #define WMT_PIN_VDOUT4          WMT_PIN(1, 4)
  67 #define WMT_PIN_VDOUT5          WMT_PIN(1, 5)
  68 #define WMT_PIN_VDOUT6          WMT_PIN(1, 6)
  69 #define WMT_PIN_VDOUT7          WMT_PIN(1, 7)
  70 #define WMT_PIN_VDOUT8          WMT_PIN(1, 8)
  71 #define WMT_PIN_VDOUT9          WMT_PIN(1, 9)
  72 #define WMT_PIN_VDOUT10         WMT_PIN(1, 10)
  73 #define WMT_PIN_VDOUT11         WMT_PIN(1, 11)
  74 #define WMT_PIN_VDOUT12         WMT_PIN(1, 12)
  75 #define WMT_PIN_VDOUT13         WMT_PIN(1, 13)
  76 #define WMT_PIN_VDOUT14         WMT_PIN(1, 14)
  77 #define WMT_PIN_VDOUT15         WMT_PIN(1, 15)
  78 #define WMT_PIN_VDOUT16         WMT_PIN(1, 16)
  79 #define WMT_PIN_VDOUT17         WMT_PIN(1, 17)
  80 #define WMT_PIN_VDOUT18         WMT_PIN(1, 18)
  81 #define WMT_PIN_VDOUT19         WMT_PIN(1, 19)
  82 #define WMT_PIN_VDOUT20         WMT_PIN(1, 20)
  83 #define WMT_PIN_VDOUT21         WMT_PIN(1, 21)
  84 #define WMT_PIN_VDOUT22         WMT_PIN(1, 22)
  85 #define WMT_PIN_VDOUT23         WMT_PIN(1, 23)
  86 #define WMT_PIN_VDIN0           WMT_PIN(2, 0)
  87 #define WMT_PIN_VDIN1           WMT_PIN(2, 1)
  88 #define WMT_PIN_VDIN2           WMT_PIN(2, 2)
  89 #define WMT_PIN_VDIN3           WMT_PIN(2, 3)
  90 #define WMT_PIN_VDIN4           WMT_PIN(2, 4)
  91 #define WMT_PIN_VDIN5           WMT_PIN(2, 5)
  92 #define WMT_PIN_VDIN6           WMT_PIN(2, 6)
  93 #define WMT_PIN_VDIN7           WMT_PIN(2, 7)
  94 #define WMT_PIN_SPI0_MOSI       WMT_PIN(2, 24)
  95 #define WMT_PIN_SPI0_MISO       WMT_PIN(2, 25)
  96 #define WMT_PIN_SPI0_SS         WMT_PIN(2, 26)
  97 #define WMT_PIN_SPI0_CLK        WMT_PIN(2, 27)
  98 #define WMT_PIN_SPI0_SSB        WMT_PIN(2, 28)
  99 #define WMT_PIN_SD0CLK          WMT_PIN(3, 17)
 100 #define WMT_PIN_SD0CMD          WMT_PIN(3, 18)
 101 #define WMT_PIN_SD0WP           WMT_PIN(3, 19)
 102 #define WMT_PIN_SD0DATA0        WMT_PIN(3, 20)
 103 #define WMT_PIN_SD0DATA1        WMT_PIN(3, 21)
 104 #define WMT_PIN_SD0DATA2        WMT_PIN(3, 22)
 105 #define WMT_PIN_SD0DATA3        WMT_PIN(3, 23)
 106 #define WMT_PIN_SD1DATA0        WMT_PIN(3, 24)
 107 #define WMT_PIN_SD1DATA1        WMT_PIN(3, 25)
 108 #define WMT_PIN_SD1DATA2        WMT_PIN(3, 26)
 109 #define WMT_PIN_SD1DATA3        WMT_PIN(3, 27)
 110 #define WMT_PIN_SD1DATA4        WMT_PIN(3, 28)
 111 #define WMT_PIN_SD1DATA5        WMT_PIN(3, 29)
 112 #define WMT_PIN_SD1DATA6        WMT_PIN(3, 30)
 113 #define WMT_PIN_SD1DATA7        WMT_PIN(3, 31)
 114 #define WMT_PIN_I2C0_SCL        WMT_PIN(5, 8)
 115 #define WMT_PIN_I2C0_SDA        WMT_PIN(5, 9)
 116 #define WMT_PIN_I2C1_SCL        WMT_PIN(5, 10)
 117 #define WMT_PIN_I2C1_SDA        WMT_PIN(5, 11)
 118 #define WMT_PIN_I2C2_SCL        WMT_PIN(5, 12)
 119 #define WMT_PIN_I2C2_SDA        WMT_PIN(5, 13)
 120 #define WMT_PIN_UART0_RTS       WMT_PIN(5, 16)
 121 #define WMT_PIN_UART0_TXD       WMT_PIN(5, 17)
 122 #define WMT_PIN_UART0_CTS       WMT_PIN(5, 18)
 123 #define WMT_PIN_UART0_RXD       WMT_PIN(5, 19)
 124 #define WMT_PIN_UART1_RTS       WMT_PIN(5, 20)
 125 #define WMT_PIN_UART1_TXD       WMT_PIN(5, 21)
 126 #define WMT_PIN_UART1_CTS       WMT_PIN(5, 22)
 127 #define WMT_PIN_UART1_RXD       WMT_PIN(5, 23)
 128 #define WMT_PIN_UART2_RTS       WMT_PIN(5, 24)
 129 #define WMT_PIN_UART2_TXD       WMT_PIN(5, 25)
 130 #define WMT_PIN_UART2_CTS       WMT_PIN(5, 26)
 131 #define WMT_PIN_UART2_RXD       WMT_PIN(5, 27)
 132 #define WMT_PIN_SD2WP           WMT_PIN(6, 3)
 133 #define WMT_PIN_SD2CMD          WMT_PIN(6, 6)
 134 #define WMT_PIN_SD2CLK          WMT_PIN(6, 7)
 135 #define WMT_PIN_SD2PWR          WMT_PIN(6, 9)
 136 #define WMT_PIN_SD1CLK          WMT_PIN(7, 0)
 137 #define WMT_PIN_SD1CMD          WMT_PIN(7, 1)
 138 #define WMT_PIN_SD1PWR          WMT_PIN(7, 10)
 139 #define WMT_PIN_SD1WP           WMT_PIN(7, 11)
 140 #define WMT_PIN_SD1CD           WMT_PIN(7, 12)
 141 #define WMT_PIN_PWMOUT1         WMT_PIN(7, 26)
 142 #define WMT_PIN_PWMOUT0         WMT_PIN(7, 27)
 143
 144 static const struct pinctrl_pin_desc wm8850_pins[] = {
 145         PINCTRL_PIN(WMT_PIN_EXTGPIO0, "extgpio0"),
 146         PINCTRL_PIN(WMT_PIN_EXTGPIO1, "extgpio1"),
 147         PINCTRL_PIN(WMT_PIN_EXTGPIO2, "extgpio2"),
 148         PINCTRL_PIN(WMT_PIN_EXTGPIO3, "extgpio3"),
 149         PINCTRL_PIN(WMT_PIN_EXTGPIO4, "extgpio4"),
 150         PINCTRL_PIN(WMT_PIN_EXTGPIO5, "extgpio5"),
 151         PINCTRL_PIN(WMT_PIN_EXTGPIO6, "extgpio6"),
 152         PINCTRL_PIN(WMT_PIN_EXTGPIO7, "extgpio7"),
 153         PINCTRL_PIN(WMT_PIN_WAKEUP0, "wakeup0"),
 154         PINCTRL_PIN(WMT_PIN_WAKEUP1, "wakeup1"),
 155         PINCTRL_PIN(WMT_PIN_WAKEUP2, "wakeup2"),
 156         PINCTRL_PIN(WMT_PIN_WAKEUP3, "wakeup3"),
 157         PINCTRL_PIN(WMT_PIN_SUSGPIO0, "susgpio0"),
 158         PINCTRL_PIN(WMT_PIN_SUSGPIO1, "susgpio1"),
 159         PINCTRL_PIN(WMT_PIN_SD0CD, "sd0_cd"),
 160         PINCTRL_PIN(WMT_PIN_VDOUT0, "vdout0"),
 161         PINCTRL_PIN(WMT_PIN_VDOUT1, "vdout1"),
 162         PINCTRL_PIN(WMT_PIN_VDOUT2, "vdout2"),
 163         PINCTRL_PIN(WMT_PIN_VDOUT3, "vdout3"),
 164         PINCTRL_PIN(WMT_PIN_VDOUT4, "vdout4"),
 165         PINCTRL_PIN(WMT_PIN_VDOUT5, "vdout5"),
 166         PINCTRL_PIN(WMT_PIN_VDOUT6, "vdout6"),
 167         PINCTRL_PIN(WMT_PIN_VDOUT7, "vdout7"),
 168         PINCTRL_PIN(WMT_PIN_VDOUT8, "vdout8"),
 169         PINCTRL_PIN(WMT_PIN_VDOUT9, "vdout9"),
 170         PINCTRL_PIN(WMT_PIN_VDOUT10, "vdout10"),
 171         PINCTRL_PIN(WMT_PIN_VDOUT11, "vdout11"),
 172         PINCTRL_PIN(WMT_PIN_VDOUT12, "vdout12"),
 173         PINCTRL_PIN(WMT_PIN_VDOUT13, "vdout13"),
 174         PINCTRL_PIN(WMT_PIN_VDOUT14, "vdout14"),
 175         PINCTRL_PIN(WMT_PIN_VDOUT15, "vdout15"),
 176         PINCTRL_PIN(WMT_PIN_VDOUT16, "vdout16"),
 177         PINCTRL_PIN(WMT_PIN_VDOUT17, "vdout17"),
 178         PINCTRL_PIN(WMT_PIN_VDOUT18, "vdout18"),
 179         PINCTRL_PIN(WMT_PIN_VDOUT19, "vdout19"),
 180         PINCTRL_PIN(WMT_PIN_VDOUT20, "vdout20"),
 181         PINCTRL_PIN(WMT_PIN_VDOUT21, "vdout21"),
 182         PINCTRL_PIN(WMT_PIN_VDOUT22, "vdout22"),
 183         PINCTRL_PIN(WMT_PIN_VDOUT23, "vdout23"),
 184         PINCTRL_PIN(WMT_PIN_VDIN0, "vdin0"),
 185         PINCTRL_PIN(WMT_PIN_VDIN1, "vdin1"),
 186         PINCTRL_PIN(WMT_PIN_VDIN2, "vdin2"),
 187         PINCTRL_PIN(WMT_PIN_VDIN3, "vdin3"),
 188         PINCTRL_PIN(WMT_PIN_VDIN4, "vdin4"),
 189         PINCTRL_PIN(WMT_PIN_VDIN5, "vdin5"),
 190         PINCTRL_PIN(WMT_PIN_VDIN6, "vdin6"),
 191         PINCTRL_PIN(WMT_PIN_VDIN7, "vdin7"),
 192         PINCTRL_PIN(WMT_PIN_SPI0_MOSI, "spi0_mosi"),
 193         PINCTRL_PIN(WMT_PIN_SPI0_MISO, "spi0_miso"),
 194         PINCTRL_PIN(WMT_PIN_SPI0_SS, "spi0_ss"),
 195         PINCTRL_PIN(WMT_PIN_SPI0_CLK, "spi0_clk"),
 196         PINCTRL_PIN(WMT_PIN_SPI0_SSB, "spi0_ssb"),
 197         PINCTRL_PIN(WMT_PIN_SD0CLK, "sd0_clk"),
 198         PINCTRL_PIN(WMT_PIN_SD0CMD, "sd0_cmd"),
 199         PINCTRL_PIN(WMT_PIN_SD0WP, "sd0_wp"),
 200         PINCTRL_PIN(WMT_PIN_SD0DATA0, "sd0_data0"),
 201         PINCTRL_PIN(WMT_PIN_SD0DATA1, "sd0_data1"),
 202         PINCTRL_PIN(WMT_PIN_SD0DATA2, "sd0_data2"),
 203         PINCTRL_PIN(WMT_PIN_SD0DATA3, "sd0_data3"),
 204         PINCTRL_PIN(WMT_PIN_SD1DATA0, "sd1_data0"),
 205         PINCTRL_PIN(WMT_PIN_SD1DATA1, "sd1_data1"),
 206         PINCTRL_PIN(WMT_PIN_SD1DATA2, "sd1_data2"),
 207         PINCTRL_PIN(WMT_PIN_SD1DATA3, "sd1_data3"),
 208         PINCTRL_PIN(WMT_PIN_SD1DATA4, "sd1_data4"),
 209         PINCTRL_PIN(WMT_PIN_SD1DATA5, "sd1_data5"),
 210         PINCTRL_PIN(WMT_PIN_SD1DATA6, "sd1_data6"),
 211         PINCTRL_PIN(WMT_PIN_SD1DATA7, "sd1_data7"),
 212         PINCTRL_PIN(WMT_PIN_I2C0_SCL, "i2c0_scl"),
 213         PINCTRL_PIN(WMT_PIN_I2C0_SDA, "i2c0_sda"),
 214         PINCTRL_PIN(WMT_PIN_I2C1_SCL, "i2c1_scl"),
 215         PINCTRL_PIN(WMT_PIN_I2C1_SDA, "i2c1_sda"),
 216         PINCTRL_PIN(WMT_PIN_I2C2_SCL, "i2c2_scl"),
 217         PINCTRL_PIN(WMT_PIN_I2C2_SDA, "i2c2_sda"),
 218         PINCTRL_PIN(WMT_PIN_UART0_RTS, "uart0_rts"),
 219         PINCTRL_PIN(WMT_PIN_UART0_TXD, "uart0_txd"),
 220         PINCTRL_PIN(WMT_PIN_UART0_CTS, "uart0_cts"),
 221         PINCTRL_PIN(WMT_PIN_UART0_RXD, "uart0_rxd"),
 222         PINCTRL_PIN(WMT_PIN_UART1_RTS, "uart1_rts"),
 223         PINCTRL_PIN(WMT_PIN_UART1_TXD, "uart1_txd"),
 224         PINCTRL_PIN(WMT_PIN_UART1_CTS, "uart1_cts"),
 225         PINCTRL_PIN(WMT_PIN_UART1_RXD, "uart1_rxd"),
 226         PINCTRL_PIN(WMT_PIN_UART2_RTS, "uart2_rts"),
 227         PINCTRL_PIN(WMT_PIN_UART2_TXD, "uart2_txd"),
 228         PINCTRL_PIN(WMT_PIN_UART2_CTS, "uart2_cts"),
 229         PINCTRL_PIN(WMT_PIN_UART2_RXD, "uart2_rxd"),
 230         PINCTRL_PIN(WMT_PIN_SD2WP, "sd2_wp"),
 231         PINCTRL_PIN(WMT_PIN_SD2CMD, "sd2_cmd"),
 232         PINCTRL_PIN(WMT_PIN_SD2CLK, "sd2_clk"),
 233         PINCTRL_PIN(WMT_PIN_SD2PWR, "sd2_pwr"),
 234         PINCTRL_PIN(WMT_PIN_SD1CLK, "sd1_clk"),
 235         PINCTRL_PIN(WMT_PIN_SD1CMD, "sd1_cmd"),
 236         PINCTRL_PIN(WMT_PIN_SD1PWR, "sd1_pwr"),
 237         PINCTRL_PIN(WMT_PIN_SD1WP, "sd1_wp"),
 238         PINCTRL_PIN(WMT_PIN_SD1CD, "sd1_cd"),
 239         PINCTRL_PIN(WMT_PIN_PWMOUT1, "pwmout1"),
 240         PINCTRL_PIN(WMT_PIN_PWMOUT0, "pwmout0"),
 241 };
 242
 243 /* Order of these names must match the above list */
 244 static const char * const wm8850_groups[] = {
 245         "extgpio0",
 246         "extgpio1",
 247         "extgpio2",
 248         "extgpio3",
 249         "extgpio4",
 250         "extgpio5",
 251         "extgpio6",
 252         "extgpio7",
 253         "wakeup0",
 254         "wakeup1",
 255         "wakeup2",
 256         "wakeup3",
 257         "susgpio0",
 258         "susgpio1",
 259         "sd0_cd",
 260         "vdout0",
 261         "vdout1",
 262         "vdout2",
 263         "vdout3",
 264         "vdout4",
 265         "vdout5",
 266         "vdout6",
 267         "vdout7",
 268         "vdout8",
 269         "vdout9",
 270         "vdout10",
 271         "vdout11",
 272         "vdout12",
 273         "vdout13",
 274         "vdout14",
 275         "vdout15",
 276         "vdout16",
 277         "vdout17",
 278         "vdout18",
 279         "vdout19",
 280         "vdout20",
 281         "vdout21",
 282         "vdout22",
 283         "vdout23",
 284         "vdin0",
 285         "vdin1",
 286         "vdin2",
 287         "vdin3",
 288         "vdin4",
 289         "vdin5",
 290         "vdin6",
 291         "vdin7",
 292         "spi0_mosi",
 293         "spi0_miso",
 294         "spi0_ss",
 295         "spi0_clk",
 296         "spi0_ssb",
 297         "sd0_clk",
 298         "sd0_cmd",
 299         "sd0_wp",
 300         "sd0_data0",
 301         "sd0_data1",
 302         "sd0_data2",
 303         "sd0_data3",
 304         "sd1_data0",
 305         "sd1_data1",
 306         "sd1_data2",
 307         "sd1_data3",
 308         "sd1_data4",
 309         "sd1_data5",
 310         "sd1_data6",
 311         "sd1_data7",
 312         "i2c0_scl",
 313         "i2c0_sda",
 314         "i2c1_scl",
 315         "i2c1_sda",
 316         "i2c2_scl",
 317         "i2c2_sda",
 318         "uart0_rts",
 319         "uart0_txd",
 320         "uart0_cts",
 321         "uart0_rxd",
 322         "uart1_rts",
 323         "uart1_txd",
 324         "uart1_cts",
 325         "uart1_rxd",
 326         "uart2_rts",
 327         "uart2_txd",
 328         "uart2_cts",
 329         "uart2_rxd",
 330         "sd2_wp",
 331         "sd2_cmd",
 332         "sd2_clk",
 333         "sd2_pwr",
 334         "sd1_clk",
 335         "sd1_cmd",
 336         "sd1_pwr",
 337         "sd1_wp",
 338         "sd1_cd",
 339         "pwmout1",
 340         "pwmout0",
 341 };
 342
 343 static int wm8850_pinctrl_probe(struct platform_device *pdev)
 344 {
 345         struct wmt_pinctrl_data *data;
 346
 347         data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 348         if (!data)
 349                 return -ENOMEM;
 350
 351         data->banks = wm8850_banks;
 352         data->nbanks = ARRAY_SIZE(wm8850_banks);
 353         data->pins = wm8850_pins;
 354         data->npins = ARRAY_SIZE(wm8850_pins);
 355         data->groups = wm8850_groups;
 356         data->ngroups = ARRAY_SIZE(wm8850_groups);
 357
 358         return wmt_pinctrl_probe(pdev, data);
 359 }
 360
 361 static const struct of_device_id wmt_pinctrl_of_match[] = {
 362         { .compatible = "wm,wm8850-pinctrl" },
 363         { /* sentinel */ },
 364 };
 365
 366 static struct platform_driver wmt_pinctrl_driver = {
 367         .probe  = wm8850_pinctrl_probe,
 368         .driver = {
 369                 .name   = "pinctrl-wm8850",
 370                 .of_match_table = wmt_pinctrl_of_match,
 371                 .suppress_bind_attrs = true,
 372         },
 373 };
 374 builtin_platform_driver(wmt_pinctrl_driver);