1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2020 Yangtao Li <frank@allwinnertech.com>
4  *
5  * Based on:
6  * huangshuosheng <huangshuosheng@allwinnertech.com>
7  */
8 
9 #include <linux/module.h>
10 #include <linux/of.h>
11 #include <linux/of_device.h>
12 #include <linux/pinctrl/pinctrl.h>
13 #include <linux/platform_device.h>
14 
15 #include "pinctrl-sunxi.h"
16 
17 static const struct sunxi_desc_pin a100_r_pins[] = {
18 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
19 		  SUNXI_FUNCTION(0x0, "gpio_in"),
20 		  SUNXI_FUNCTION(0x1, "gpio_out"),
21 		  SUNXI_FUNCTION(0x2, "s_i2c0"),	/* SCK */
22 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)),
23 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
24 		  SUNXI_FUNCTION(0x0, "gpio_in"),
25 		  SUNXI_FUNCTION(0x1, "gpio_out"),
26 		  SUNXI_FUNCTION(0x2, "s_i2c0"),	/* SDA */
27 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)),
28 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
29 		  SUNXI_FUNCTION(0x0, "gpio_in"),
30 		  SUNXI_FUNCTION(0x1, "gpio_out"),
31 		  SUNXI_FUNCTION(0x2, "s_uart0"),	/* TX */
32 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)),
33 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
34 		  SUNXI_FUNCTION(0x0, "gpio_in"),
35 		  SUNXI_FUNCTION(0x1, "gpio_out"),
36 		  SUNXI_FUNCTION(0x2, "s_uart0"),	/* RX */
37 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)),
38 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
39 		  SUNXI_FUNCTION(0x0, "gpio_in"),
40 		  SUNXI_FUNCTION(0x1, "gpio_out"),
41 		  SUNXI_FUNCTION(0x2, "s_jtag"),	/* MS */
42 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)),
43 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
44 		  SUNXI_FUNCTION(0x0, "gpio_in"),
45 		  SUNXI_FUNCTION(0x1, "gpio_out"),
46 		  SUNXI_FUNCTION(0x2, "s_jtag"),	/* CK */
47 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)),
48 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
49 		  SUNXI_FUNCTION(0x0, "gpio_in"),
50 		  SUNXI_FUNCTION(0x1, "gpio_out"),
51 		  SUNXI_FUNCTION(0x2, "s_jtag"),	/* DO */
52 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)),
53 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
54 		  SUNXI_FUNCTION(0x0, "gpio_in"),
55 		  SUNXI_FUNCTION(0x1, "gpio_out"),
56 		  SUNXI_FUNCTION(0x2, "s_jtag"),	/* DI */
57 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)),
58 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
59 		  SUNXI_FUNCTION(0x0, "gpio_in"),
60 		  SUNXI_FUNCTION(0x1, "gpio_out"),
61 		  SUNXI_FUNCTION(0x2, "s_i2c1"),	/* SCK */
62 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)),
63 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
64 		  SUNXI_FUNCTION(0x0, "gpio_in"),
65 		  SUNXI_FUNCTION(0x1, "gpio_out"),
66 		  SUNXI_FUNCTION(0x2, "s_i2c1"),	/* SDA */
67 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)),
68 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
69 		  SUNXI_FUNCTION(0x0, "gpio_in"),
70 		  SUNXI_FUNCTION(0x1, "gpio_out"),
71 		  SUNXI_FUNCTION(0x2, "s_pwm"),
72 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 10)),
73 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11),
74 		  SUNXI_FUNCTION(0x0, "gpio_in"),
75 		  SUNXI_FUNCTION(0x1, "gpio_out"),
76 		  SUNXI_FUNCTION(0x3, "s_cir"),		/* IN */
77 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 11)),
78 };
79 
80 static const struct sunxi_pinctrl_desc a100_r_pinctrl_data = {
81 	.pins = a100_r_pins,
82 	.npins = ARRAY_SIZE(a100_r_pins),
83 	.pin_base = PL_BASE,
84 	.irq_banks = 1,
85 	.io_bias_cfg_variant = BIAS_VOLTAGE_PIO_POW_MODE_CTL,
86 };
87 
88 static int a100_r_pinctrl_probe(struct platform_device *pdev)
89 {
90 	return sunxi_pinctrl_init(pdev, &a100_r_pinctrl_data);
91 }
92 
93 static const struct of_device_id a100_r_pinctrl_match[] = {
94 	{ .compatible = "allwinner,sun50i-a100-r-pinctrl", },
95 	{}
96 };
97 MODULE_DEVICE_TABLE(of, a100_r_pinctrl_match);
98 
99 static struct platform_driver a100_r_pinctrl_driver = {
100 	.probe	= a100_r_pinctrl_probe,
101 	.driver	= {
102 		.name		= "sun50i-a100-r-pinctrl",
103 		.of_match_table	= a100_r_pinctrl_match,
104 	},
105 };
106 module_platform_driver(a100_r_pinctrl_driver);
107