1 /*
2  * Allwinner H3 SoCs pinctrl driver.
3  *
4  * Copyright (C) 2016 Krzysztof Adamski <k@japko.eu>
5  *
6  * This file is licensed under the terms of the GNU General Public
7  * License version 2.  This program is licensed "as is" without any
8  * warranty of any kind, whether express or implied.
9  */
10 
11 #include <linux/module.h>
12 #include <linux/platform_device.h>
13 #include <linux/of.h>
14 #include <linux/of_device.h>
15 #include <linux/pinctrl/pinctrl.h>
16 
17 #include "pinctrl-sunxi.h"
18 
19 static const struct sunxi_desc_pin sun8i_h3_r_pins[] = {
20 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
21 		  SUNXI_FUNCTION(0x0, "gpio_in"),
22 		  SUNXI_FUNCTION(0x1, "gpio_out"),
23 		  SUNXI_FUNCTION(0x2, "s_i2c"),         /* SCK */
24 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)),	/* PL_EINT0 */
25 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
26 		  SUNXI_FUNCTION(0x0, "gpio_in"),
27 		  SUNXI_FUNCTION(0x1, "gpio_out"),
28 		  SUNXI_FUNCTION(0x2, "s_i2c"),         /* SDA */
29 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)),	/* PL_EINT1 */
30 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
31 		  SUNXI_FUNCTION(0x0, "gpio_in"),
32 		  SUNXI_FUNCTION(0x1, "gpio_out"),
33 		  SUNXI_FUNCTION(0x2, "s_uart"),        /* TX */
34 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)),	/* PL_EINT2 */
35 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
36 		  SUNXI_FUNCTION(0x0, "gpio_in"),
37 		  SUNXI_FUNCTION(0x1, "gpio_out"),
38 		  SUNXI_FUNCTION(0x2, "s_uart"),        /* RX */
39 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)),	/* PL_EINT3 */
40 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
41 		  SUNXI_FUNCTION(0x0, "gpio_in"),
42 		  SUNXI_FUNCTION(0x1, "gpio_out"),
43 		  SUNXI_FUNCTION(0x2, "s_jtag"),        /* MS */
44 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)),	/* PL_EINT4 */
45 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
46 		  SUNXI_FUNCTION(0x0, "gpio_in"),
47 		  SUNXI_FUNCTION(0x1, "gpio_out"),
48 		  SUNXI_FUNCTION(0x2, "s_jtag"),        /* CK */
49 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)),	/* PL_EINT5 */
50 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
51 		  SUNXI_FUNCTION(0x0, "gpio_in"),
52 		  SUNXI_FUNCTION(0x1, "gpio_out"),
53 		  SUNXI_FUNCTION(0x2, "s_jtag"),        /* DO */
54 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)),	/* PL_EINT6 */
55 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
56 		  SUNXI_FUNCTION(0x0, "gpio_in"),
57 		  SUNXI_FUNCTION(0x1, "gpio_out"),
58 		  SUNXI_FUNCTION(0x2, "s_jtag"),        /* DI */
59 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)),	/* PL_EINT7 */
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(0x6, 0, 8)),	/* PL_EINT8 */
64 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
65 		  SUNXI_FUNCTION(0x0, "gpio_in"),
66 		  SUNXI_FUNCTION(0x1, "gpio_out"),
67 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)),	/* PL_EINT9 */
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)),	/* PL_EINT10 */
73 	SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11),
74 		  SUNXI_FUNCTION(0x0, "gpio_in"),
75 		  SUNXI_FUNCTION(0x1, "gpio_out"),
76 		  SUNXI_FUNCTION(0x2, "s_cir_rx"),
77 		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 11)),	/* PL_EINT11 */
78 };
79 
80 static const struct sunxi_pinctrl_desc sun8i_h3_r_pinctrl_data = {
81 	.pins = sun8i_h3_r_pins,
82 	.npins = ARRAY_SIZE(sun8i_h3_r_pins),
83 	.irq_banks = 1,
84 	.pin_base = PL_BASE,
85 	.irq_read_needs_mux = true,
86 	.disable_strict_mode = true,
87 };
88 
sun8i_h3_r_pinctrl_probe(struct platform_device * pdev)89 static int sun8i_h3_r_pinctrl_probe(struct platform_device *pdev)
90 {
91 	return sunxi_pinctrl_init(pdev,
92 				  &sun8i_h3_r_pinctrl_data);
93 }
94 
95 static const struct of_device_id sun8i_h3_r_pinctrl_match[] = {
96 	{ .compatible = "allwinner,sun8i-h3-r-pinctrl", },
97 	{}
98 };
99 
100 static struct platform_driver sun8i_h3_r_pinctrl_driver = {
101 	.probe	= sun8i_h3_r_pinctrl_probe,
102 	.driver	= {
103 		.name		= "sun8i-h3-r-pinctrl",
104 		.of_match_table	= sun8i_h3_r_pinctrl_match,
105 	},
106 };
107 builtin_platform_driver(sun8i_h3_r_pinctrl_driver);
108