text: /*
   * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core
   *
   * Copyright (C) 2017 Marvell
   *
   * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   * Hanna Hawa <hannah@marvell.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  
  #include <linux/err.h>
  #include <linux/init.h>
  #include <linux/io.h>
  #include <linux/platform_device.h>
  #include <linux/of.h>
  #include <linux/of_device.h>
  #include <linux/pinctrl/pinctrl.h>
  
  #include "pinctrl-mvebu.h"
  
  static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = {
  	MPP_MODE(0,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "clk"),
  		 MPP_FUNCTION(3, "spi0",    "clk")),
  	MPP_MODE(1,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "cmd"),
  		 MPP_FUNCTION(3, "spi0",    "miso")),
  	MPP_MODE(2,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d0"),
  		 MPP_FUNCTION(3, "spi0",    "mosi")),
  	MPP_MODE(3,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d1"),
  		 MPP_FUNCTION(3, "spi0",    "cs0n")),
  	MPP_MODE(4,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d2"),
  		 MPP_FUNCTION(3, "i2c0",    "sda")),
  	MPP_MODE(5,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d3"),
  		 MPP_FUNCTION(3, "i2c0",    "sdk")),
  	MPP_MODE(6,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "ds")),
  	MPP_MODE(7,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d4"),
  		 MPP_FUNCTION(3, "uart1",   "rxd")),
  	MPP_MODE(8,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d5"),
  		 MPP_FUNCTION(3, "uart1",   "txd")),
  	MPP_MODE(9,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d6"),
  		 MPP_FUNCTION(3, "spi0",    "cs1n")),
  	MPP_MODE(10,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "d7")),
  	MPP_MODE(11,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(3, "uart0",   "txd")),
  	MPP_MODE(12,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(1, "sdio",    "pw_off"),
  		 MPP_FUNCTION(2, "sdio",    "hw_rst")),
  	MPP_MODE(13,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(14,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(15,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(16,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(17,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(18,
  		 MPP_FUNCTION(0, "gpio",    NULL)),
  	MPP_MODE(19,
  		 MPP_FUNCTION(0, "gpio",    NULL),
  		 MPP_FUNCTION(3, "uart0",   "rxd"),
  		 MPP_FUNCTION(4, "sdio",    "pw_off")),
  };
  
  static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info;
  
  static const struct of_device_id armada_ap806_pinctrl_of_match[] = {
  	{
  		.compatible = "marvell,ap806-pinctrl",
  	},
  	{ },
  };
  
  static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = {
  	MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl),
  };
  
  static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = {
  	MPP_GPIO_RANGE(0,   0,  0, 20),
  };
  
  static int armada_ap806_pinctrl_probe(struct platform_device *pdev)
  {
  	struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info;
  	const struct of_device_id *match =
  		of_match_device(armada_ap806_pinctrl_of_match, &pdev->dev);
  
  	if (!match || !pdev->dev.parent)
  		return -ENODEV;
  
  	soc->variant = 0; /* no variants for Armada AP806 */
  	soc->controls = armada_ap806_mpp_controls;
  	soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls);
  	soc->gpioranges = armada_ap806_mpp_gpio_ranges;
  	soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges);
  	soc->modes = armada_ap806_mpp_modes;
  	soc->nmodes = armada_ap806_mpp_controls[0].npins;
  
  	pdev->dev.platform_data = soc;
  
  	return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0);
  }
  
  static struct platform_driver armada_ap806_pinctrl_driver = {
  	.driver = {
  		.name = "armada-ap806-pinctrl",
  		.of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match),
  	},
  	.probe = armada_ap806_pinctrl_probe,
  };
  
  builtin_platform_driver(armada_ap806_pinctrl_driver);
  