pinctrl-armada-ap806.c

  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core
  4 *
  5 * Copyright (C) 2017 Marvell
  6 *
  7 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  8 * Hanna Hawa <hannah@marvell.com>
  9 */
 10
 11#include <linux/err.h>
 12#include <linux/init.h>
 13#include <linux/io.h>
 14#include <linux/platform_device.h>
 15#include <linux/of.h>
 16#include <linux/pinctrl/pinctrl.h>
 17
 18#include "pinctrl-mvebu.h"
 19
 20static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = {
 21	MPP_MODE(0,
 22		 MPP_FUNCTION(0, "gpio",    NULL),
 23		 MPP_FUNCTION(1, "sdio",    "clk"),
 24		 MPP_FUNCTION(3, "spi0",    "clk")),
 25	MPP_MODE(1,
 26		 MPP_FUNCTION(0, "gpio",    NULL),
 27		 MPP_FUNCTION(1, "sdio",    "cmd"),
 28		 MPP_FUNCTION(3, "spi0",    "miso")),
 29	MPP_MODE(2,
 30		 MPP_FUNCTION(0, "gpio",    NULL),
 31		 MPP_FUNCTION(1, "sdio",    "d0"),
 32		 MPP_FUNCTION(3, "spi0",    "mosi")),
 33	MPP_MODE(3,
 34		 MPP_FUNCTION(0, "gpio",    NULL),
 35		 MPP_FUNCTION(1, "sdio",    "d1"),
 36		 MPP_FUNCTION(3, "spi0",    "cs0n")),
 37	MPP_MODE(4,
 38		 MPP_FUNCTION(0, "gpio",    NULL),
 39		 MPP_FUNCTION(1, "sdio",    "d2"),
 40		 MPP_FUNCTION(3, "i2c0",    "sda")),
 41	MPP_MODE(5,
 42		 MPP_FUNCTION(0, "gpio",    NULL),
 43		 MPP_FUNCTION(1, "sdio",    "d3"),
 44		 MPP_FUNCTION(3, "i2c0",    "sdk")),
 45	MPP_MODE(6,
 46		 MPP_FUNCTION(0, "gpio",    NULL),
 47		 MPP_FUNCTION(1, "sdio",    "ds")),
 48	MPP_MODE(7,
 49		 MPP_FUNCTION(0, "gpio",    NULL),
 50		 MPP_FUNCTION(1, "sdio",    "d4"),
 51		 MPP_FUNCTION(3, "uart1",   "rxd")),
 52	MPP_MODE(8,
 53		 MPP_FUNCTION(0, "gpio",    NULL),
 54		 MPP_FUNCTION(1, "sdio",    "d5"),
 55		 MPP_FUNCTION(3, "uart1",   "txd")),
 56	MPP_MODE(9,
 57		 MPP_FUNCTION(0, "gpio",    NULL),
 58		 MPP_FUNCTION(1, "sdio",    "d6"),
 59		 MPP_FUNCTION(3, "spi0",    "cs1n")),
 60	MPP_MODE(10,
 61		 MPP_FUNCTION(0, "gpio",    NULL),
 62		 MPP_FUNCTION(1, "sdio",    "d7")),
 63	MPP_MODE(11,
 64		 MPP_FUNCTION(0, "gpio",    NULL),
 65		 MPP_FUNCTION(3, "uart0",   "txd")),
 66	MPP_MODE(12,
 67		 MPP_FUNCTION(0, "gpio",    NULL),
 68		 MPP_FUNCTION(1, "sdio",    "pw_off"),
 69		 MPP_FUNCTION(2, "sdio",    "hw_rst")),
 70	MPP_MODE(13,
 71		 MPP_FUNCTION(0, "gpio",    NULL)),
 72	MPP_MODE(14,
 73		 MPP_FUNCTION(0, "gpio",    NULL)),
 74	MPP_MODE(15,
 75		 MPP_FUNCTION(0, "gpio",    NULL)),
 76	MPP_MODE(16,
 77		 MPP_FUNCTION(0, "gpio",    NULL)),
 78	MPP_MODE(17,
 79		 MPP_FUNCTION(0, "gpio",    NULL)),
 80	MPP_MODE(18,
 81		 MPP_FUNCTION(0, "gpio",    NULL)),
 82	MPP_MODE(19,
 83		 MPP_FUNCTION(0, "gpio",    NULL),
 84		 MPP_FUNCTION(3, "uart0",   "rxd"),
 85		 MPP_FUNCTION(4, "sdio",    "pw_off")),
 86};
 87
 88static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info;
 89
 90static const struct of_device_id armada_ap806_pinctrl_of_match[] = {
 91	{
 92		.compatible = "marvell,ap806-pinctrl",
 93	},
 94	{ },
 95};
 96
 97static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = {
 98	MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl),
 99};
100
101static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = {
102	MPP_GPIO_RANGE(0,   0,  0, 20),
103};
104
105static int armada_ap806_pinctrl_probe(struct platform_device *pdev)
106{
107	struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info;
108
109	if (!pdev->dev.parent)
110		return -ENODEV;
111
112	soc->variant = 0; /* no variants for Armada AP806 */
113	soc->controls = armada_ap806_mpp_controls;
114	soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls);
115	soc->gpioranges = armada_ap806_mpp_gpio_ranges;
116	soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges);
117	soc->modes = armada_ap806_mpp_modes;
118	soc->nmodes = armada_ap806_mpp_controls[0].npins;
119
120	pdev->dev.platform_data = soc;
121
122	return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0);
123}
124
125static struct platform_driver armada_ap806_pinctrl_driver = {
126	.driver = {
127		.name = "armada-ap806-pinctrl",
128		.of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match),
129	},
130	.probe = armada_ap806_pinctrl_probe,
131};
132
133builtin_platform_driver(armada_ap806_pinctrl_driver);