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kernel/linux-rt-4.4.41/drivers/pinctrl/mediatek/pinctrl-mt6397.c 2.23 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (c) 2015 MediaTek Inc.
   * Author: Hongzhou.Yang <hongzhou.yang@mediatek.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  #include <linux/module.h>
  #include <linux/platform_device.h>
  #include <linux/of.h>
  #include <linux/of_device.h>
  #include <linux/pinctrl/pinctrl.h>
  #include <linux/pinctrl/pinconf-generic.h>
  #include <linux/mfd/mt6397/core.h>
  
  #include "pinctrl-mtk-common.h"
  #include "pinctrl-mtk-mt6397.h"
  
  #define MT6397_PIN_REG_BASE  0xc000
  
  static const struct mtk_pinctrl_devdata mt6397_pinctrl_data = {
  	.pins = mtk_pins_mt6397,
  	.npins = ARRAY_SIZE(mtk_pins_mt6397),
  	.dir_offset = (MT6397_PIN_REG_BASE + 0x000),
  	.ies_offset = MTK_PINCTRL_NOT_SUPPORT,
  	.smt_offset = MTK_PINCTRL_NOT_SUPPORT,
  	.pullen_offset = (MT6397_PIN_REG_BASE + 0x020),
  	.pullsel_offset = (MT6397_PIN_REG_BASE + 0x040),
  	.dout_offset = (MT6397_PIN_REG_BASE + 0x080),
  	.din_offset = (MT6397_PIN_REG_BASE + 0x0a0),
  	.pinmux_offset = (MT6397_PIN_REG_BASE + 0x0c0),
  	.type1_start = 41,
  	.type1_end = 41,
  	.port_shf = 3,
  	.port_mask = 0x3,
  	.port_align = 2,
  };
  
  static int mt6397_pinctrl_probe(struct platform_device *pdev)
  {
  	struct mt6397_chip *mt6397;
  
  	mt6397 = dev_get_drvdata(pdev->dev.parent);
  	return mtk_pctrl_init(pdev, &mt6397_pinctrl_data, mt6397->regmap);
  }
  
  static const struct of_device_id mt6397_pctrl_match[] = {
  	{ .compatible = "mediatek,mt6397-pinctrl", },
  	{ }
  };
  MODULE_DEVICE_TABLE(of, mt6397_pctrl_match);
  
  static struct platform_driver mtk_pinctrl_driver = {
  	.probe = mt6397_pinctrl_probe,
  	.driver = {
  		.name = "mediatek-mt6397-pinctrl",
  		.of_match_table = mt6397_pctrl_match,
  	},
  };
  
  static int __init mtk_pinctrl_init(void)
  {
  	return platform_driver_register(&mtk_pinctrl_driver);
  }
  
  module_init(mtk_pinctrl_init);
  
  MODULE_LICENSE("GPL v2");
  MODULE_DESCRIPTION("MediaTek MT6397 Pinctrl Driver");
  MODULE_AUTHOR("Hongzhou Yang <hongzhou.yang@mediatek.com>");