1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2015 MediaTek Inc.
4 * Author: Hongzhou.Yang <hongzhou.yang@mediatek.com>
5 */
6
7 #include <linux/init.h>
8 #include <linux/platform_device.h>
9 #include <linux/of.h>
10 #include <linux/pinctrl/pinctrl.h>
11 #include <linux/pinctrl/pinconf-generic.h>
12 #include <linux/mfd/mt6397/core.h>
13
14 #include "pinctrl-mtk-common.h"
15 #include "pinctrl-mtk-mt6397.h"
16
17 #define MT6397_PIN_REG_BASE 0xc000
18
19 static const struct mtk_pinctrl_devdata mt6397_pinctrl_data = {
20 .pins = mtk_pins_mt6397,
21 .npins = ARRAY_SIZE(mtk_pins_mt6397),
22 .dir_offset = (MT6397_PIN_REG_BASE + 0x000),
23 .ies_offset = MTK_PINCTRL_NOT_SUPPORT,
24 .smt_offset = MTK_PINCTRL_NOT_SUPPORT,
25 .pullen_offset = (MT6397_PIN_REG_BASE + 0x020),
26 .pullsel_offset = (MT6397_PIN_REG_BASE + 0x040),
27 .dout_offset = (MT6397_PIN_REG_BASE + 0x080),
28 .din_offset = (MT6397_PIN_REG_BASE + 0x0a0),
29 .pinmux_offset = (MT6397_PIN_REG_BASE + 0x0c0),
30 .type1_start = 41,
31 .type1_end = 41,
32 .port_shf = 3,
33 .port_mask = 0x3,
34 .port_align = 2,
35 .mode_mask = 0xf,
36 .mode_per_reg = 5,
37 .mode_shf = 4,
38 };
39
mt6397_pinctrl_probe(struct platform_device * pdev)40 static int mt6397_pinctrl_probe(struct platform_device *pdev)
41 {
42 struct mt6397_chip *mt6397;
43
44 mt6397 = dev_get_drvdata(pdev->dev.parent);
45 return mtk_pctrl_init(pdev, &mt6397_pinctrl_data, mt6397->regmap);
46 }
47
48 static const struct of_device_id mt6397_pctrl_match[] = {
49 { .compatible = "mediatek,mt6397-pinctrl", },
50 { }
51 };
52 MODULE_DEVICE_TABLE(of, mt6397_pctrl_match);
53
54 static struct platform_driver mtk_pinctrl_driver = {
55 .probe = mt6397_pinctrl_probe,
56 .driver = {
57 .name = "mediatek-mt6397-pinctrl",
58 .of_match_table = mt6397_pctrl_match,
59 },
60 };
61
62 builtin_platform_driver(mtk_pinctrl_driver);
63
64 MODULE_DESCRIPTION("MediaTek MT6397 Pinctrl Driver");
65 MODULE_LICENSE("GPL v2");
66 MODULE_IMPORT_NS("MTK_PINCTRL");
67