1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Allwinner H6 R_PIO pin controller driver
4 *
5 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
6 *
7 * Based on pinctrl-sun6i-a31-r.c, which is:
8 * Copyright (C) 2014 Boris Brezillon
9 * Boris Brezillon <boris.brezillon@free-electrons.com>
10 * Copyright (C) 2014 Maxime Ripard
11 * Maxime Ripard <maxime.ripard@free-electrons.com>
12 */
13
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/of.h>
17 #include <linux/pinctrl/pinctrl.h>
18
19 #include "pinctrl-sunxi.h"
20
21 static const struct sunxi_desc_pin sun50i_h6_r_pins[] = {
22 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
23 SUNXI_FUNCTION(0x0, "gpio_in"),
24 SUNXI_FUNCTION(0x1, "gpio_out"),
25 SUNXI_FUNCTION(0x2, "s_rsb"), /* SCK */
26 SUNXI_FUNCTION(0x3, "s_i2c"), /* SCK */
27 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* PL_EINT0 */
28 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
29 SUNXI_FUNCTION(0x0, "gpio_in"),
30 SUNXI_FUNCTION(0x1, "gpio_out"),
31 SUNXI_FUNCTION(0x2, "s_rsb"), /* SDA */
32 SUNXI_FUNCTION(0x3, "s_i2c"), /* SDA */
33 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* PL_EINT1 */
34 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
35 SUNXI_FUNCTION(0x0, "gpio_in"),
36 SUNXI_FUNCTION(0x1, "gpio_out"),
37 SUNXI_FUNCTION(0x2, "s_uart"), /* TX */
38 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* PL_EINT2 */
39 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
40 SUNXI_FUNCTION(0x0, "gpio_in"),
41 SUNXI_FUNCTION(0x1, "gpio_out"),
42 SUNXI_FUNCTION(0x2, "s_uart"), /* RX */
43 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* PL_EINT3 */
44 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
45 SUNXI_FUNCTION(0x0, "gpio_in"),
46 SUNXI_FUNCTION(0x1, "gpio_out"),
47 SUNXI_FUNCTION(0x2, "s_jtag"), /* MS */
48 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* PL_EINT4 */
49 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
50 SUNXI_FUNCTION(0x0, "gpio_in"),
51 SUNXI_FUNCTION(0x1, "gpio_out"),
52 SUNXI_FUNCTION(0x2, "s_jtag"), /* CK */
53 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* PL_EINT5 */
54 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
55 SUNXI_FUNCTION(0x0, "gpio_in"),
56 SUNXI_FUNCTION(0x1, "gpio_out"),
57 SUNXI_FUNCTION(0x2, "s_jtag"), /* DO */
58 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* PL_EINT6 */
59 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
60 SUNXI_FUNCTION(0x0, "gpio_in"),
61 SUNXI_FUNCTION(0x1, "gpio_out"),
62 SUNXI_FUNCTION(0x2, "s_jtag"), /* DI */
63 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* PL_EINT7 */
64 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
65 SUNXI_FUNCTION(0x0, "gpio_in"),
66 SUNXI_FUNCTION(0x1, "gpio_out"),
67 SUNXI_FUNCTION(0x2, "s_pwm"),
68 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* PL_EINT8 */
69 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
70 SUNXI_FUNCTION(0x0, "gpio_in"),
71 SUNXI_FUNCTION(0x1, "gpio_out"),
72 SUNXI_FUNCTION(0x2, "s_cir_rx"),
73 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* PL_EINT9 */
74 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
75 SUNXI_FUNCTION(0x0, "gpio_in"),
76 SUNXI_FUNCTION(0x1, "gpio_out"),
77 SUNXI_FUNCTION(0x2, "s_w1"),
78 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 10)), /* PL_EINT10 */
79 /* Hole */
80 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
81 SUNXI_FUNCTION(0x0, "gpio_in"),
82 SUNXI_FUNCTION(0x1, "gpio_out"),
83 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* PM_EINT0 */
84 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
85 SUNXI_FUNCTION(0x0, "gpio_in"),
86 SUNXI_FUNCTION(0x1, "gpio_out"),
87 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* PM_EINT1 */
88 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
89 SUNXI_FUNCTION(0x0, "gpio_in"),
90 SUNXI_FUNCTION(0x1, "gpio_out"),
91 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2), /* PM_EINT2 */
92 SUNXI_FUNCTION(0x3, "1wire")),
93 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
94 SUNXI_FUNCTION(0x0, "gpio_in"),
95 SUNXI_FUNCTION(0x1, "gpio_out"),
96 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* PM_EINT3 */
97 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
98 SUNXI_FUNCTION(0x0, "gpio_in"),
99 SUNXI_FUNCTION(0x1, "gpio_out"),
100 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* PM_EINT4 */
101 };
102
103 static const struct sunxi_pinctrl_desc sun50i_h6_r_pinctrl_data = {
104 .pins = sun50i_h6_r_pins,
105 .npins = ARRAY_SIZE(sun50i_h6_r_pins),
106 .pin_base = PL_BASE,
107 .irq_banks = 2,
108 .io_bias_cfg_variant = BIAS_VOLTAGE_PIO_POW_MODE_SEL,
109 };
110
sun50i_h6_r_pinctrl_probe(struct platform_device * pdev)111 static int sun50i_h6_r_pinctrl_probe(struct platform_device *pdev)
112 {
113 return sunxi_pinctrl_init(pdev,
114 &sun50i_h6_r_pinctrl_data);
115 }
116
117 static const struct of_device_id sun50i_h6_r_pinctrl_match[] = {
118 { .compatible = "allwinner,sun50i-h6-r-pinctrl", },
119 {}
120 };
121
122 static struct platform_driver sun50i_h6_r_pinctrl_driver = {
123 .probe = sun50i_h6_r_pinctrl_probe,
124 .driver = {
125 .name = "sun50i-h6-r-pinctrl",
126 .of_match_table = sun50i_h6_r_pinctrl_match,
127 },
128 };
129 builtin_platform_driver(sun50i_h6_r_pinctrl_driver);
130