drivers/pinctrl/mediatek/pinctrl-mt6397.c

   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/of_device.h>
  11 #include <linux/pinctrl/pinctrl.h>
  12 #include <linux/pinctrl/pinconf-generic.h>
  13 #include <linux/mfd/mt6397/core.h>
  14
  15 #include "pinctrl-mtk-common.h"
  16 #include "pinctrl-mtk-mt6397.h"
  17
  18 #define MT6397_PIN_REG_BASE  0xc000
  19
  20 static const struct mtk_pinctrl_devdata mt6397_pinctrl_data = {
  21         .pins = mtk_pins_mt6397,
  22         .npins = ARRAY_SIZE(mtk_pins_mt6397),
  23         .dir_offset = (MT6397_PIN_REG_BASE + 0x000),
  24         .ies_offset = MTK_PINCTRL_NOT_SUPPORT,
  25         .smt_offset = MTK_PINCTRL_NOT_SUPPORT,
  26         .pullen_offset = (MT6397_PIN_REG_BASE + 0x020),
  27         .pullsel_offset = (MT6397_PIN_REG_BASE + 0x040),
  28         .dout_offset = (MT6397_PIN_REG_BASE + 0x080),
  29         .din_offset = (MT6397_PIN_REG_BASE + 0x0a0),
  30         .pinmux_offset = (MT6397_PIN_REG_BASE + 0x0c0),
  31         .type1_start = 41,
  32         .type1_end = 41,
  33         .port_shf = 3,
  34         .port_mask = 0x3,
  35         .port_align = 2,
  36 };
  37
  38 static int mt6397_pinctrl_probe(struct platform_device *pdev)
  39 {
  40         struct mt6397_chip *mt6397;
  41
  42         mt6397 = dev_get_drvdata(pdev->dev.parent);
  43         return mtk_pctrl_init(pdev, &mt6397_pinctrl_data, mt6397->regmap);
  44 }
  45
  46 static const struct of_device_id mt6397_pctrl_match[] = {
  47         { .compatible = "mediatek,mt6397-pinctrl", },
  48         { }
  49 };
  50
  51 static struct platform_driver mtk_pinctrl_driver = {
  52         .probe = mt6397_pinctrl_probe,
  53         .driver = {
  54                 .name = "mediatek-mt6397-pinctrl",
  55                 .of_match_table = mt6397_pctrl_match,
  56         },
  57 };
  58
  59 builtin_platform_driver(mtk_pinctrl_driver);