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