kernel/drivers/pinctrl/vt8500/pinctrl-wm8650.c

   1 /*
   2  * Pinctrl data for Wondermedia WM8650 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/module.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 wm8650_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 };
  42
  43 /* Please keep sorted by bank/bit */
  44 #define WMT_PIN_EXTGPIO0        WMT_PIN(0, 0)
  45 #define WMT_PIN_EXTGPIO1        WMT_PIN(0, 1)
  46 #define WMT_PIN_EXTGPIO2        WMT_PIN(0, 2)
  47 #define WMT_PIN_EXTGPIO3        WMT_PIN(0, 3)
  48 #define WMT_PIN_EXTGPIO4        WMT_PIN(0, 4)
  49 #define WMT_PIN_EXTGPIO5        WMT_PIN(0, 5)
  50 #define WMT_PIN_EXTGPIO6        WMT_PIN(0, 6)
  51 #define WMT_PIN_EXTGPIO7        WMT_PIN(0, 7)
  52 #define WMT_PIN_WAKEUP0         WMT_PIN(0, 16)
  53 #define WMT_PIN_WAKEUP1         WMT_PIN(0, 17)
  54 #define WMT_PIN_SUSGPIO0        WMT_PIN(0, 21)
  55 #define WMT_PIN_SD0CD           WMT_PIN(0, 28)
  56 #define WMT_PIN_SD1CD           WMT_PIN(0, 29)
  57 #define WMT_PIN_VDOUT0          WMT_PIN(1, 0)
  58 #define WMT_PIN_VDOUT1          WMT_PIN(1, 1)
  59 #define WMT_PIN_VDOUT2          WMT_PIN(1, 2)
  60 #define WMT_PIN_VDOUT3          WMT_PIN(1, 3)
  61 #define WMT_PIN_VDOUT4          WMT_PIN(1, 4)
  62 #define WMT_PIN_VDOUT5          WMT_PIN(1, 5)
  63 #define WMT_PIN_VDOUT6          WMT_PIN(1, 6)
  64 #define WMT_PIN_VDOUT7          WMT_PIN(1, 7)
  65 #define WMT_PIN_VDOUT8          WMT_PIN(1, 8)
  66 #define WMT_PIN_VDOUT9          WMT_PIN(1, 9)
  67 #define WMT_PIN_VDOUT10         WMT_PIN(1, 10)
  68 #define WMT_PIN_VDOUT11         WMT_PIN(1, 11)
  69 #define WMT_PIN_VDOUT12         WMT_PIN(1, 12)
  70 #define WMT_PIN_VDOUT13         WMT_PIN(1, 13)
  71 #define WMT_PIN_VDOUT14         WMT_PIN(1, 14)
  72 #define WMT_PIN_VDOUT15         WMT_PIN(1, 15)
  73 #define WMT_PIN_VDOUT16         WMT_PIN(1, 16)
  74 #define WMT_PIN_VDOUT17         WMT_PIN(1, 17)
  75 #define WMT_PIN_VDOUT18         WMT_PIN(1, 18)
  76 #define WMT_PIN_VDOUT19         WMT_PIN(1, 19)
  77 #define WMT_PIN_VDOUT20         WMT_PIN(1, 20)
  78 #define WMT_PIN_VDOUT21         WMT_PIN(1, 21)
  79 #define WMT_PIN_VDOUT22         WMT_PIN(1, 22)
  80 #define WMT_PIN_VDOUT23         WMT_PIN(1, 23)
  81 #define WMT_PIN_VDIN0           WMT_PIN(2, 0)
  82 #define WMT_PIN_VDIN1           WMT_PIN(2, 1)
  83 #define WMT_PIN_VDIN2           WMT_PIN(2, 2)
  84 #define WMT_PIN_VDIN3           WMT_PIN(2, 3)
  85 #define WMT_PIN_VDIN4           WMT_PIN(2, 4)
  86 #define WMT_PIN_VDIN5           WMT_PIN(2, 5)
  87 #define WMT_PIN_VDIN6           WMT_PIN(2, 6)
  88 #define WMT_PIN_VDIN7           WMT_PIN(2, 7)
  89 #define WMT_PIN_I2C1SCL         WMT_PIN(2, 12)
  90 #define WMT_PIN_I2C1SDA         WMT_PIN(2, 13)
  91 #define WMT_PIN_SPI0MOSI        WMT_PIN(2, 24)
  92 #define WMT_PIN_SPI0MISO        WMT_PIN(2, 25)
  93 #define WMT_PIN_SPI0SS0         WMT_PIN(2, 26)
  94 #define WMT_PIN_SPI0CLK         WMT_PIN(2, 27)
  95 #define WMT_PIN_SD0DATA0        WMT_PIN(3, 8)
  96 #define WMT_PIN_SD0DATA1        WMT_PIN(3, 9)
  97 #define WMT_PIN_SD0DATA2        WMT_PIN(3, 10)
  98 #define WMT_PIN_SD0DATA3        WMT_PIN(3, 11)
  99 #define WMT_PIN_SD0CLK          WMT_PIN(3, 12)
 100 #define WMT_PIN_SD0WP           WMT_PIN(3, 13)
 101 #define WMT_PIN_SD0CMD          WMT_PIN(3, 14)
 102 #define WMT_PIN_SD1DATA0        WMT_PIN(3, 24)
 103 #define WMT_PIN_SD1DATA1        WMT_PIN(3, 25)
 104 #define WMT_PIN_SD1DATA2        WMT_PIN(3, 26)
 105 #define WMT_PIN_SD1DATA3        WMT_PIN(3, 27)
 106 #define WMT_PIN_SD1DATA4        WMT_PIN(3, 28)
 107 #define WMT_PIN_SD1DATA5        WMT_PIN(3, 29)
 108 #define WMT_PIN_SD1DATA6        WMT_PIN(3, 30)
 109 #define WMT_PIN_SD1DATA7        WMT_PIN(3, 31)
 110 #define WMT_PIN_I2C0SCL         WMT_PIN(5, 8)
 111 #define WMT_PIN_I2C0SDA         WMT_PIN(5, 9)
 112 #define WMT_PIN_UART0RTS        WMT_PIN(5, 16)
 113 #define WMT_PIN_UART0TXD        WMT_PIN(5, 17)
 114 #define WMT_PIN_UART0CTS        WMT_PIN(5, 18)
 115 #define WMT_PIN_UART0RXD        WMT_PIN(5, 19)
 116 #define WMT_PIN_UART1RTS        WMT_PIN(5, 20)
 117 #define WMT_PIN_UART1TXD        WMT_PIN(5, 21)
 118 #define WMT_PIN_UART1CTS        WMT_PIN(5, 22)
 119 #define WMT_PIN_UART1RXD        WMT_PIN(5, 23)
 120 #define WMT_PIN_UART2RTS        WMT_PIN(5, 24)
 121 #define WMT_PIN_UART2TXD        WMT_PIN(5, 25)
 122 #define WMT_PIN_UART2CTS        WMT_PIN(5, 26)
 123 #define WMT_PIN_UART2RXD        WMT_PIN(5, 27)
 124 #define WMT_PIN_UART3RTS        WMT_PIN(5, 28)
 125 #define WMT_PIN_UART3TXD        WMT_PIN(5, 29)
 126 #define WMT_PIN_UART3CTS        WMT_PIN(5, 30)
 127 #define WMT_PIN_UART3RXD        WMT_PIN(5, 31)
 128 #define WMT_PIN_KPADROW0        WMT_PIN(6, 16)
 129 #define WMT_PIN_KPADROW1        WMT_PIN(6, 17)
 130 #define WMT_PIN_KPADCOL0        WMT_PIN(6, 18)
 131 #define WMT_PIN_KPADCOL1        WMT_PIN(6, 19)
 132 #define WMT_PIN_SD1CLK          WMT_PIN(7, 0)
 133 #define WMT_PIN_SD1CMD          WMT_PIN(7, 1)
 134 #define WMT_PIN_SD1WP           WMT_PIN(7, 13)
 135
 136 static const struct pinctrl_pin_desc wm8650_pins[] = {
 137         PINCTRL_PIN(WMT_PIN_EXTGPIO0, "extgpio0"),
 138         PINCTRL_PIN(WMT_PIN_EXTGPIO1, "extgpio1"),
 139         PINCTRL_PIN(WMT_PIN_EXTGPIO2, "extgpio2"),
 140         PINCTRL_PIN(WMT_PIN_EXTGPIO3, "extgpio3"),
 141         PINCTRL_PIN(WMT_PIN_EXTGPIO4, "extgpio4"),
 142         PINCTRL_PIN(WMT_PIN_EXTGPIO5, "extgpio5"),
 143         PINCTRL_PIN(WMT_PIN_EXTGPIO6, "extgpio6"),
 144         PINCTRL_PIN(WMT_PIN_EXTGPIO7, "extgpio7"),
 145         PINCTRL_PIN(WMT_PIN_WAKEUP0, "wakeup0"),
 146         PINCTRL_PIN(WMT_PIN_WAKEUP1, "wakeup1"),
 147         PINCTRL_PIN(WMT_PIN_SUSGPIO0, "susgpio0"),
 148         PINCTRL_PIN(WMT_PIN_SD0CD, "sd0_cd"),
 149         PINCTRL_PIN(WMT_PIN_SD1CD, "sd1_cd"),
 150         PINCTRL_PIN(WMT_PIN_VDOUT0, "vdout0"),
 151         PINCTRL_PIN(WMT_PIN_VDOUT1, "vdout1"),
 152         PINCTRL_PIN(WMT_PIN_VDOUT2, "vdout2"),
 153         PINCTRL_PIN(WMT_PIN_VDOUT3, "vdout3"),
 154         PINCTRL_PIN(WMT_PIN_VDOUT4, "vdout4"),
 155         PINCTRL_PIN(WMT_PIN_VDOUT5, "vdout5"),
 156         PINCTRL_PIN(WMT_PIN_VDOUT6, "vdout6"),
 157         PINCTRL_PIN(WMT_PIN_VDOUT7, "vdout7"),
 158         PINCTRL_PIN(WMT_PIN_VDOUT8, "vdout8"),
 159         PINCTRL_PIN(WMT_PIN_VDOUT9, "vdout9"),
 160         PINCTRL_PIN(WMT_PIN_VDOUT10, "vdout10"),
 161         PINCTRL_PIN(WMT_PIN_VDOUT11, "vdout11"),
 162         PINCTRL_PIN(WMT_PIN_VDOUT12, "vdout12"),
 163         PINCTRL_PIN(WMT_PIN_VDOUT13, "vdout13"),
 164         PINCTRL_PIN(WMT_PIN_VDOUT14, "vdout14"),
 165         PINCTRL_PIN(WMT_PIN_VDOUT15, "vdout15"),
 166         PINCTRL_PIN(WMT_PIN_VDOUT16, "vdout16"),
 167         PINCTRL_PIN(WMT_PIN_VDOUT17, "vdout17"),
 168         PINCTRL_PIN(WMT_PIN_VDOUT18, "vdout18"),
 169         PINCTRL_PIN(WMT_PIN_VDOUT19, "vdout19"),
 170         PINCTRL_PIN(WMT_PIN_VDOUT20, "vdout20"),
 171         PINCTRL_PIN(WMT_PIN_VDOUT21, "vdout21"),
 172         PINCTRL_PIN(WMT_PIN_VDOUT22, "vdout22"),
 173         PINCTRL_PIN(WMT_PIN_VDOUT23, "vdout23"),
 174         PINCTRL_PIN(WMT_PIN_VDIN0, "vdin0"),
 175         PINCTRL_PIN(WMT_PIN_VDIN1, "vdin1"),
 176         PINCTRL_PIN(WMT_PIN_VDIN2, "vdin2"),
 177         PINCTRL_PIN(WMT_PIN_VDIN3, "vdin3"),
 178         PINCTRL_PIN(WMT_PIN_VDIN4, "vdin4"),
 179         PINCTRL_PIN(WMT_PIN_VDIN5, "vdin5"),
 180         PINCTRL_PIN(WMT_PIN_VDIN6, "vdin6"),
 181         PINCTRL_PIN(WMT_PIN_VDIN7, "vdin7"),
 182         PINCTRL_PIN(WMT_PIN_I2C1SCL, "i2c1_scl"),
 183         PINCTRL_PIN(WMT_PIN_I2C1SDA, "i2c1_sda"),
 184         PINCTRL_PIN(WMT_PIN_SPI0MOSI, "spi0_mosi"),
 185         PINCTRL_PIN(WMT_PIN_SPI0MISO, "spi0_miso"),
 186         PINCTRL_PIN(WMT_PIN_SPI0SS0, "spi0_ss0"),
 187         PINCTRL_PIN(WMT_PIN_SPI0CLK, "spi0_clk"),
 188         PINCTRL_PIN(WMT_PIN_SD0DATA0, "sd0_data0"),
 189         PINCTRL_PIN(WMT_PIN_SD0DATA1, "sd0_data1"),
 190         PINCTRL_PIN(WMT_PIN_SD0DATA2, "sd0_data2"),
 191         PINCTRL_PIN(WMT_PIN_SD0DATA3, "sd0_data3"),
 192         PINCTRL_PIN(WMT_PIN_SD0CLK, "sd0_clk"),
 193         PINCTRL_PIN(WMT_PIN_SD0WP, "sd0_wp"),
 194         PINCTRL_PIN(WMT_PIN_SD0CMD, "sd0_cmd"),
 195         PINCTRL_PIN(WMT_PIN_SD1DATA0, "sd1_data0"),
 196         PINCTRL_PIN(WMT_PIN_SD1DATA1, "sd1_data1"),
 197         PINCTRL_PIN(WMT_PIN_SD1DATA2, "sd1_data2"),
 198         PINCTRL_PIN(WMT_PIN_SD1DATA3, "sd1_data3"),
 199         PINCTRL_PIN(WMT_PIN_SD1DATA4, "sd1_data4"),
 200         PINCTRL_PIN(WMT_PIN_SD1DATA5, "sd1_data5"),
 201         PINCTRL_PIN(WMT_PIN_SD1DATA6, "sd1_data6"),
 202         PINCTRL_PIN(WMT_PIN_SD1DATA7, "sd1_data7"),
 203         PINCTRL_PIN(WMT_PIN_I2C0SCL, "i2c0_scl"),
 204         PINCTRL_PIN(WMT_PIN_I2C0SDA, "i2c0_sda"),
 205         PINCTRL_PIN(WMT_PIN_UART0RTS, "uart0_rts"),
 206         PINCTRL_PIN(WMT_PIN_UART0TXD, "uart0_txd"),
 207         PINCTRL_PIN(WMT_PIN_UART0CTS, "uart0_cts"),
 208         PINCTRL_PIN(WMT_PIN_UART0RXD, "uart0_rxd"),
 209         PINCTRL_PIN(WMT_PIN_UART1RTS, "uart1_rts"),
 210         PINCTRL_PIN(WMT_PIN_UART1TXD, "uart1_txd"),
 211         PINCTRL_PIN(WMT_PIN_UART1CTS, "uart1_cts"),
 212         PINCTRL_PIN(WMT_PIN_UART1RXD, "uart1_rxd"),
 213         PINCTRL_PIN(WMT_PIN_UART2RTS, "uart2_rts"),
 214         PINCTRL_PIN(WMT_PIN_UART2TXD, "uart2_txd"),
 215         PINCTRL_PIN(WMT_PIN_UART2CTS, "uart2_cts"),
 216         PINCTRL_PIN(WMT_PIN_UART2RXD, "uart2_rxd"),
 217         PINCTRL_PIN(WMT_PIN_UART3RTS, "uart3_rts"),
 218         PINCTRL_PIN(WMT_PIN_UART3TXD, "uart3_txd"),
 219         PINCTRL_PIN(WMT_PIN_UART3CTS, "uart3_cts"),
 220         PINCTRL_PIN(WMT_PIN_UART3RXD, "uart3_rxd"),
 221         PINCTRL_PIN(WMT_PIN_KPADROW0, "kpadrow0"),
 222         PINCTRL_PIN(WMT_PIN_KPADROW1, "kpadrow1"),
 223         PINCTRL_PIN(WMT_PIN_KPADCOL0, "kpadcol0"),
 224         PINCTRL_PIN(WMT_PIN_KPADCOL1, "kpadcol1"),
 225         PINCTRL_PIN(WMT_PIN_SD1CLK, "sd1_clk"),
 226         PINCTRL_PIN(WMT_PIN_SD1CMD, "sd1_cmd"),
 227         PINCTRL_PIN(WMT_PIN_SD1WP, "sd1_wp"),
 228 };
 229
 230 /* Order of these names must match the above list */
 231 static const char * const wm8650_groups[] = {
 232         "extgpio0",
 233         "extgpio1",
 234         "extgpio2",
 235         "extgpio3",
 236         "extgpio4",
 237         "extgpio5",
 238         "extgpio6",
 239         "extgpio7",
 240         "wakeup0",
 241         "wakeup1",
 242         "susgpio0",
 243         "sd0_cd",
 244         "sd1_cd",
 245         "vdout0",
 246         "vdout1",
 247         "vdout2",
 248         "vdout3",
 249         "vdout4",
 250         "vdout5",
 251         "vdout6",
 252         "vdout7",
 253         "vdout8",
 254         "vdout9",
 255         "vdout10",
 256         "vdout11",
 257         "vdout12",
 258         "vdout13",
 259         "vdout14",
 260         "vdout15",
 261         "vdout16",
 262         "vdout17",
 263         "vdout18",
 264         "vdout19",
 265         "vdout20",
 266         "vdout21",
 267         "vdout22",
 268         "vdout23",
 269         "vdin0",
 270         "vdin1",
 271         "vdin2",
 272         "vdin3",
 273         "vdin4",
 274         "vdin5",
 275         "vdin6",
 276         "vdin7",
 277         "i2c1_scl",
 278         "i2c1_sda",
 279         "spi0_mosi",
 280         "spi0_miso",
 281         "spi0_ss0",
 282         "spi0_clk",
 283         "sd0_data0",
 284         "sd0_data1",
 285         "sd0_data2",
 286         "sd0_data3",
 287         "sd0_clk",
 288         "sd0_wp",
 289         "sd0_cmd",
 290         "sd1_data0",
 291         "sd1_data1",
 292         "sd1_data2",
 293         "sd1_data3",
 294         "sd1_data4",
 295         "sd1_data5",
 296         "sd1_data6",
 297         "sd1_data7",
 298         "i2c0_scl",
 299         "i2c0_sda",
 300         "uart0_rts",
 301         "uart0_txd",
 302         "uart0_cts",
 303         "uart0_rxd",
 304         "uart1_rts",
 305         "uart1_txd",
 306         "uart1_cts",
 307         "uart1_rxd",
 308         "uart2_rts",
 309         "uart2_txd",
 310         "uart2_cts",
 311         "uart2_rxd",
 312         "uart3_rts",
 313         "uart3_txd",
 314         "uart3_cts",
 315         "uart3_rxd",
 316         "kpadrow0",
 317         "kpadrow1",
 318         "kpadcol0",
 319         "kpadcol1",
 320         "sd1_clk",
 321         "sd1_cmd",
 322         "sd1_wp",
 323 };
 324
 325 static int wm8650_pinctrl_probe(struct platform_device *pdev)
 326 {
 327         struct wmt_pinctrl_data *data;
 328
 329         data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 330         if (!data) {
 331                 dev_err(&pdev->dev, "failed to allocate data\n");
 332                 return -ENOMEM;
 333         }
 334
 335         data->banks = wm8650_banks;
 336         data->nbanks = ARRAY_SIZE(wm8650_banks);
 337         data->pins = wm8650_pins;
 338         data->npins = ARRAY_SIZE(wm8650_pins);
 339         data->groups = wm8650_groups;
 340         data->ngroups = ARRAY_SIZE(wm8650_groups);
 341
 342         return wmt_pinctrl_probe(pdev, data);
 343 }
 344
 345 static int wm8650_pinctrl_remove(struct platform_device *pdev)
 346 {
 347         return wmt_pinctrl_remove(pdev);
 348 }
 349
 350 static const struct of_device_id wmt_pinctrl_of_match[] = {
 351         { .compatible = "wm,wm8650-pinctrl" },
 352         { /* sentinel */ },
 353 };
 354
 355 static struct platform_driver wmt_pinctrl_driver = {
 356         .probe  = wm8650_pinctrl_probe,
 357         .remove = wm8650_pinctrl_remove,
 358         .driver = {
 359                 .name   = "pinctrl-wm8650",
 360                 .of_match_table = wmt_pinctrl_of_match,
 361         },
 362 };
 363
 364 module_platform_driver(wmt_pinctrl_driver);
 365
 366 MODULE_AUTHOR("Tony Prisk <linux@prisktech.co.nz>");
 367 MODULE_DESCRIPTION("Wondermedia WM8650 Pincontrol driver");
 368 MODULE_LICENSE("GPL v2");
 369 MODULE_DEVICE_TABLE(of, wmt_pinctrl_of_match);