1 /*
2 * Allwinner A31 SoCs special pins pinctrl driver.
3 *
4 * Copyright (C) 2014 Boris Brezillon
5 * Boris Brezillon <boris.brezillon@free-electrons.com>
6 *
7 * Copyright (C) 2014 Maxime Ripard
8 * Maxime Ripard <maxime.ripard@free-electrons.com>
9 *
10 * This file is licensed under the terms of the GNU General Public
11 * License version 2. This program is licensed "as is" without any
12 * warranty of any kind, whether express or implied.
13 */
14
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/of.h>
18 #include <linux/pinctrl/pinctrl.h>
19
20 #include "pinctrl-sunxi.h"
21
22 static const struct sunxi_desc_pin sun6i_a31_r_pins[] = {
23 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
24 SUNXI_FUNCTION(0x0, "gpio_in"),
25 SUNXI_FUNCTION(0x1, "gpio_out"),
26 SUNXI_FUNCTION(0x2, "s_i2c"), /* SCK */
27 SUNXI_FUNCTION(0x3, "s_p2wi")), /* SCK */
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_i2c"), /* SDA */
32 SUNXI_FUNCTION(0x3, "s_p2wi")), /* SDA */
33 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
34 SUNXI_FUNCTION(0x0, "gpio_in"),
35 SUNXI_FUNCTION(0x1, "gpio_out"),
36 SUNXI_FUNCTION(0x2, "s_uart")), /* TX */
37 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
38 SUNXI_FUNCTION(0x0, "gpio_in"),
39 SUNXI_FUNCTION(0x1, "gpio_out"),
40 SUNXI_FUNCTION(0x2, "s_uart")), /* RX */
41 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
42 SUNXI_FUNCTION(0x0, "gpio_in"),
43 SUNXI_FUNCTION(0x1, "gpio_out"),
44 SUNXI_FUNCTION(0x2, "s_ir")), /* RX */
45 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
46 SUNXI_FUNCTION(0x0, "gpio_in"),
47 SUNXI_FUNCTION(0x1, "gpio_out"),
48 SUNXI_FUNCTION_IRQ_BANK(0x2, 0, 0), /* PL_EINT0 */
49 SUNXI_FUNCTION(0x3, "s_jtag")), /* MS */
50 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
51 SUNXI_FUNCTION(0x0, "gpio_in"),
52 SUNXI_FUNCTION(0x1, "gpio_out"),
53 SUNXI_FUNCTION_IRQ_BANK(0x2, 0, 1), /* PL_EINT1 */
54 SUNXI_FUNCTION(0x3, "s_jtag")), /* CK */
55 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
56 SUNXI_FUNCTION(0x0, "gpio_in"),
57 SUNXI_FUNCTION(0x1, "gpio_out"),
58 SUNXI_FUNCTION_IRQ_BANK(0x2, 0, 2), /* PL_EINT2 */
59 SUNXI_FUNCTION(0x3, "s_jtag")), /* DO */
60 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
61 SUNXI_FUNCTION(0x0, "gpio_in"),
62 SUNXI_FUNCTION(0x1, "gpio_out"),
63 SUNXI_FUNCTION_IRQ_BANK(0x2, 0, 3), /* PL_EINT3 */
64 SUNXI_FUNCTION(0x3, "s_jtag")), /* DI */
65 /* Hole */
66 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
67 SUNXI_FUNCTION(0x0, "gpio_in"),
68 SUNXI_FUNCTION(0x1, "gpio_out"),
69 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 0)), /* PM_EINT0 */
70 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
71 SUNXI_FUNCTION(0x0, "gpio_in"),
72 SUNXI_FUNCTION(0x1, "gpio_out"),
73 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 1)), /* PM_EINT1 */
74 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
75 SUNXI_FUNCTION(0x0, "gpio_in"),
76 SUNXI_FUNCTION(0x1, "gpio_out"),
77 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 2), /* PM_EINT2 */
78 SUNXI_FUNCTION(0x3, "1wire")),
79 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
80 SUNXI_FUNCTION(0x0, "gpio_in"),
81 SUNXI_FUNCTION(0x1, "gpio_out"),
82 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 3)), /* PM_EINT3 */
83 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
84 SUNXI_FUNCTION(0x0, "gpio_in"),
85 SUNXI_FUNCTION(0x1, "gpio_out"),
86 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 4)), /* PM_EINT4 */
87 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 5),
88 SUNXI_FUNCTION(0x0, "gpio_in"),
89 SUNXI_FUNCTION(0x1, "gpio_out"),
90 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 5)), /* PM_EINT5 */
91 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 6),
92 SUNXI_FUNCTION(0x0, "gpio_in"),
93 SUNXI_FUNCTION(0x1, "gpio_out"),
94 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 6)), /* PM_EINT6 */
95 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 7),
96 SUNXI_FUNCTION(0x0, "gpio_in"),
97 SUNXI_FUNCTION(0x1, "gpio_out"),
98 SUNXI_FUNCTION_IRQ_BANK(0x2, 1, 7), /* PM_EINT7 */
99 SUNXI_FUNCTION(0x3, "rtc")), /* CLKO */
100 };
101
102 static const struct sunxi_pinctrl_desc sun6i_a31_r_pinctrl_data = {
103 .pins = sun6i_a31_r_pins,
104 .npins = ARRAY_SIZE(sun6i_a31_r_pins),
105 .pin_base = PL_BASE,
106 .irq_banks = 2,
107 .disable_strict_mode = true,
108 };
109
sun6i_a31_r_pinctrl_probe(struct platform_device * pdev)110 static int sun6i_a31_r_pinctrl_probe(struct platform_device *pdev)
111 {
112 return sunxi_pinctrl_init(pdev, &sun6i_a31_r_pinctrl_data);
113 }
114
115 static const struct of_device_id sun6i_a31_r_pinctrl_match[] = {
116 { .compatible = "allwinner,sun6i-a31-r-pinctrl", },
117 {}
118 };
119
120 static struct platform_driver sun6i_a31_r_pinctrl_driver = {
121 .probe = sun6i_a31_r_pinctrl_probe,
122 .driver = {
123 .name = "sun6i-a31-r-pinctrl",
124 .of_match_table = sun6i_a31_r_pinctrl_match,
125 },
126 };
127 builtin_platform_driver(sun6i_a31_r_pinctrl_driver);
128