1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Allwinner H616 R_PIO pin controller driver
4 *
5 * Copyright (C) 2020 Arm Ltd.
6 * Based on former work, which is:
7 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
8 */
9
10 #include <linux/init.h>
11 #include <linux/platform_device.h>
12 #include <linux/of.h>
13 #include <linux/pinctrl/pinctrl.h>
14
15 #include "pinctrl-sunxi.h"
16
17 static const struct sunxi_desc_pin sun50i_h616_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_rsb"), /* SCK */
22 SUNXI_FUNCTION(0x3, "s_i2c")), /* SCK */
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_rsb"), /* SDA */
27 SUNXI_FUNCTION(0x3, "s_i2c")), /* SDA */
28 };
29
30 static const struct sunxi_pinctrl_desc sun50i_h616_r_pinctrl_data = {
31 .pins = sun50i_h616_r_pins,
32 .npins = ARRAY_SIZE(sun50i_h616_r_pins),
33 .pin_base = PL_BASE,
34 };
35
sun50i_h616_r_pinctrl_probe(struct platform_device * pdev)36 static int sun50i_h616_r_pinctrl_probe(struct platform_device *pdev)
37 {
38 return sunxi_pinctrl_init(pdev,
39 &sun50i_h616_r_pinctrl_data);
40 }
41
42 static const struct of_device_id sun50i_h616_r_pinctrl_match[] = {
43 { .compatible = "allwinner,sun50i-h616-r-pinctrl", },
44 {}
45 };
46
47 static struct platform_driver sun50i_h616_r_pinctrl_driver = {
48 .probe = sun50i_h616_r_pinctrl_probe,
49 .driver = {
50 .name = "sun50i-h616-r-pinctrl",
51 .of_match_table = sun50i_h616_r_pinctrl_match,
52 },
53 };
54 builtin_platform_driver(sun50i_h616_r_pinctrl_driver);
55