drivers/pinctrl/mvebu/pinctrl-armada-ap806.c

   1 /*
   2  * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core
   3  *
   4  * Copyright (C) 2017 Marvell
   5  *
   6  * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   7  * Hanna Hawa <hannah@marvell.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  */
  14
  15 #include <linux/err.h>
  16 #include <linux/init.h>
  17 #include <linux/io.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/of.h>
  20 #include <linux/of_device.h>
  21 #include <linux/pinctrl/pinctrl.h>
  22
  23 #include "pinctrl-mvebu.h"
  24
  25 static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = {
  26         MPP_MODE(0,
  27                  MPP_FUNCTION(0, "gpio",    NULL),
  28                  MPP_FUNCTION(1, "sdio",    "clk"),
  29                  MPP_FUNCTION(3, "spi0",    "clk")),
  30         MPP_MODE(1,
  31                  MPP_FUNCTION(0, "gpio",    NULL),
  32                  MPP_FUNCTION(1, "sdio",    "cmd"),
  33                  MPP_FUNCTION(3, "spi0",    "miso")),
  34         MPP_MODE(2,
  35                  MPP_FUNCTION(0, "gpio",    NULL),
  36                  MPP_FUNCTION(1, "sdio",    "d0"),
  37                  MPP_FUNCTION(3, "spi0",    "mosi")),
  38         MPP_MODE(3,
  39                  MPP_FUNCTION(0, "gpio",    NULL),
  40                  MPP_FUNCTION(1, "sdio",    "d1"),
  41                  MPP_FUNCTION(3, "spi0",    "cs0n")),
  42         MPP_MODE(4,
  43                  MPP_FUNCTION(0, "gpio",    NULL),
  44                  MPP_FUNCTION(1, "sdio",    "d2"),
  45                  MPP_FUNCTION(3, "i2c0",    "sda")),
  46         MPP_MODE(5,
  47                  MPP_FUNCTION(0, "gpio",    NULL),
  48                  MPP_FUNCTION(1, "sdio",    "d3"),
  49                  MPP_FUNCTION(3, "i2c0",    "sdk")),
  50         MPP_MODE(6,
  51                  MPP_FUNCTION(0, "gpio",    NULL),
  52                  MPP_FUNCTION(1, "sdio",    "ds")),
  53         MPP_MODE(7,
  54                  MPP_FUNCTION(0, "gpio",    NULL),
  55                  MPP_FUNCTION(1, "sdio",    "d4"),
  56                  MPP_FUNCTION(3, "uart1",   "rxd")),
  57         MPP_MODE(8,
  58                  MPP_FUNCTION(0, "gpio",    NULL),
  59                  MPP_FUNCTION(1, "sdio",    "d5"),
  60                  MPP_FUNCTION(3, "uart1",   "txd")),
  61         MPP_MODE(9,
  62                  MPP_FUNCTION(0, "gpio",    NULL),
  63                  MPP_FUNCTION(1, "sdio",    "d6"),
  64                  MPP_FUNCTION(3, "spi0",    "cs1n")),
  65         MPP_MODE(10,
  66                  MPP_FUNCTION(0, "gpio",    NULL),
  67                  MPP_FUNCTION(1, "sdio",    "d7")),
  68         MPP_MODE(11,
  69                  MPP_FUNCTION(0, "gpio",    NULL),
  70                  MPP_FUNCTION(3, "uart0",   "txd")),
  71         MPP_MODE(12,
  72                  MPP_FUNCTION(0, "gpio",    NULL),
  73                  MPP_FUNCTION(1, "sdio",    "pw_off"),
  74                  MPP_FUNCTION(2, "sdio",    "hw_rst")),
  75         MPP_MODE(13,
  76                  MPP_FUNCTION(0, "gpio",    NULL)),
  77         MPP_MODE(14,
  78                  MPP_FUNCTION(0, "gpio",    NULL)),
  79         MPP_MODE(15,
  80                  MPP_FUNCTION(0, "gpio",    NULL)),
  81         MPP_MODE(16,
  82                  MPP_FUNCTION(0, "gpio",    NULL)),
  83         MPP_MODE(17,
  84                  MPP_FUNCTION(0, "gpio",    NULL)),
  85         MPP_MODE(18,
  86                  MPP_FUNCTION(0, "gpio",    NULL)),
  87         MPP_MODE(19,
  88                  MPP_FUNCTION(0, "gpio",    NULL),
  89                  MPP_FUNCTION(3, "uart0",   "rxd"),
  90                  MPP_FUNCTION(4, "sdio",    "pw_off")),
  91 };
  92
  93 static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info;
  94
  95 static const struct of_device_id armada_ap806_pinctrl_of_match[] = {
  96         {
  97                 .compatible = "marvell,ap806-pinctrl",
  98         },
  99         { },
 100 };
 101
 102 static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = {
 103         MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl),
 104 };
 105
 106 static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = {
 107         MPP_GPIO_RANGE(0,   0,  0, 20),
 108 };
 109
 110 static int armada_ap806_pinctrl_probe(struct platform_device *pdev)
 111 {
 112         struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info;
 113         const struct of_device_id *match =
 114                 of_match_device(armada_ap806_pinctrl_of_match, &pdev->dev);
 115
 116         if (!match || !pdev->dev.parent)
 117                 return -ENODEV;
 118
 119         soc->variant = 0; /* no variants for Armada AP806 */
 120         soc->controls = armada_ap806_mpp_controls;
 121         soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls);
 122         soc->gpioranges = armada_ap806_mpp_gpio_ranges;
 123         soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges);
 124         soc->modes = armada_ap806_mpp_modes;
 125         soc->nmodes = armada_ap806_mpp_controls[0].npins;
 126
 127         pdev->dev.platform_data = soc;
 128
 129         return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0);
 130 }
 131
 132 static struct platform_driver armada_ap806_pinctrl_driver = {
 133         .driver = {
 134                 .name = "armada-ap806-pinctrl",
 135                 .of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match),
 136         },
 137         .probe = armada_ap806_pinctrl_probe,
 138 };
 139
 140 builtin_platform_driver(armada_ap806_pinctrl_driver);