1 /*
2 * Allwinner A23 SoCs special pins pinctrl driver.
3 *
4 * Copyright (C) 2014 Chen-Yu Tsai
5 * Chen-Yu Tsai <wens@csie.org>
6 *
7 * Copyright (C) 2014 Boris Brezillon
8 * Boris Brezillon <boris.brezillon@free-electrons.com>
9 *
10 * Copyright (C) 2014 Maxime Ripard
11 * Maxime Ripard <maxime.ripard@free-electrons.com>
12 *
13 * This file is licensed under the terms of the GNU General Public
14 * License version 2. This program is licensed "as is" without any
15 * warranty of any kind, whether express or implied.
16 */
17
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20 #include <linux/of.h>
21 #include <linux/of_device.h>
22 #include <linux/pinctrl/pinctrl.h>
23
24 #include "pinctrl-sunxi.h"
25
26 static const struct sunxi_desc_pin sun8i_a23_r_pins[] = {
27 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
28 SUNXI_FUNCTION(0x0, "gpio_in"),
29 SUNXI_FUNCTION(0x1, "gpio_out"),
30 SUNXI_FUNCTION(0x2, "s_rsb"), /* SCK */
31 SUNXI_FUNCTION(0x3, "s_i2c"), /* SCK */
32 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 0)), /* PL_EINT0 */
33 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
34 SUNXI_FUNCTION(0x0, "gpio_in"),
35 SUNXI_FUNCTION(0x1, "gpio_out"),
36 SUNXI_FUNCTION(0x2, "s_rsb"), /* SDA */
37 SUNXI_FUNCTION(0x3, "s_i2c"), /* SDA */
38 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 1)), /* PL_EINT1 */
39 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
40 SUNXI_FUNCTION(0x0, "gpio_in"),
41 SUNXI_FUNCTION(0x1, "gpio_out"),
42 SUNXI_FUNCTION(0x2, "s_uart"), /* TX */
43 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 2)), /* PL_EINT2 */
44 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
45 SUNXI_FUNCTION(0x0, "gpio_in"),
46 SUNXI_FUNCTION(0x1, "gpio_out"),
47 SUNXI_FUNCTION(0x2, "s_uart"), /* RX */
48 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 3)), /* PL_EINT3 */
49 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
50 SUNXI_FUNCTION(0x0, "gpio_in"),
51 SUNXI_FUNCTION(0x1, "gpio_out"),
52 SUNXI_FUNCTION(0x3, "s_jtag"), /* MS */
53 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 4)), /* PL_EINT4 */
54 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
55 SUNXI_FUNCTION(0x0, "gpio_in"),
56 SUNXI_FUNCTION(0x1, "gpio_out"),
57 SUNXI_FUNCTION(0x3, "s_jtag"), /* CK */
58 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 5)), /* PL_EINT5 */
59 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
60 SUNXI_FUNCTION(0x0, "gpio_in"),
61 SUNXI_FUNCTION(0x1, "gpio_out"),
62 SUNXI_FUNCTION(0x3, "s_jtag"), /* DO */
63 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 6)), /* PL_EINT6 */
64 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
65 SUNXI_FUNCTION(0x0, "gpio_in"),
66 SUNXI_FUNCTION(0x1, "gpio_out"),
67 SUNXI_FUNCTION(0x3, "s_jtag"), /* DI */
68 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 7)), /* PL_EINT7 */
69 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
70 SUNXI_FUNCTION(0x0, "gpio_in"),
71 SUNXI_FUNCTION(0x1, "gpio_out"),
72 SUNXI_FUNCTION(0x2, "s_twi"), /* SCK */
73 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 8)), /* PL_EINT8 */
74 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
75 SUNXI_FUNCTION(0x0, "gpio_in"),
76 SUNXI_FUNCTION(0x1, "gpio_out"),
77 SUNXI_FUNCTION(0x2, "s_twi"), /* SDA */
78 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 9)), /* PL_EINT9 */
79 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
80 SUNXI_FUNCTION(0x0, "gpio_in"),
81 SUNXI_FUNCTION(0x1, "gpio_out"),
82 SUNXI_FUNCTION(0x2, "s_pwm"),
83 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 10)), /* PL_EINT10 */
84 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11),
85 SUNXI_FUNCTION(0x0, "gpio_in"),
86 SUNXI_FUNCTION(0x1, "gpio_out"),
87 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 11)), /* PL_EINT11 */
88 };
89
90 static const struct sunxi_pinctrl_desc sun8i_a23_r_pinctrl_data = {
91 .pins = sun8i_a23_r_pins,
92 .npins = ARRAY_SIZE(sun8i_a23_r_pins),
93 .pin_base = PL_BASE,
94 .irq_banks = 1,
95 .disable_strict_mode = true,
96 };
97
sun8i_a23_r_pinctrl_probe(struct platform_device * pdev)98 static int sun8i_a23_r_pinctrl_probe(struct platform_device *pdev)
99 {
100 return sunxi_pinctrl_init(pdev, &sun8i_a23_r_pinctrl_data);
101 }
102
103 static const struct of_device_id sun8i_a23_r_pinctrl_match[] = {
104 { .compatible = "allwinner,sun8i-a23-r-pinctrl", },
105 {}
106 };
107
108 static struct platform_driver sun8i_a23_r_pinctrl_driver = {
109 .probe = sun8i_a23_r_pinctrl_probe,
110 .driver = {
111 .name = "sun8i-a23-r-pinctrl",
112 .of_match_table = sun8i_a23_r_pinctrl_match,
113 },
114 };
115 builtin_platform_driver(sun8i_a23_r_pinctrl_driver);
116