1 /* 2 * Copyright (c) 2015 MediaTek Inc. 3 * Author: Hongzhou.Yang <hongzhou.yang@mediatek.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #include <linux/module.h> 16 #include <linux/platform_device.h> 17 #include <linux/of.h> 18 #include <linux/of_device.h> 19 #include <linux/pinctrl/pinctrl.h> 20 #include <linux/pinctrl/pinconf-generic.h> 21 #include <linux/mfd/mt6397/core.h> 22 23 #include "pinctrl-mtk-common.h" 24 #include "pinctrl-mtk-mt6397.h" 25 26 #define MT6397_PIN_REG_BASE 0xc000 27 28 static const struct mtk_pinctrl_devdata mt6397_pinctrl_data = { 29 .pins = mtk_pins_mt6397, 30 .npins = ARRAY_SIZE(mtk_pins_mt6397), 31 .dir_offset = (MT6397_PIN_REG_BASE + 0x000), 32 .ies_offset = MTK_PINCTRL_NOT_SUPPORT, 33 .smt_offset = MTK_PINCTRL_NOT_SUPPORT, 34 .pullen_offset = (MT6397_PIN_REG_BASE + 0x020), 35 .pullsel_offset = (MT6397_PIN_REG_BASE + 0x040), 36 .dout_offset = (MT6397_PIN_REG_BASE + 0x080), 37 .din_offset = (MT6397_PIN_REG_BASE + 0x0a0), 38 .pinmux_offset = (MT6397_PIN_REG_BASE + 0x0c0), 39 .type1_start = 41, 40 .type1_end = 41, 41 .port_shf = 3, 42 .port_mask = 0x3, 43 .port_align = 2, 44 }; 45 46 static int mt6397_pinctrl_probe(struct platform_device *pdev) 47 { 48 struct mt6397_chip *mt6397; 49 50 mt6397 = dev_get_drvdata(pdev->dev.parent); 51 return mtk_pctrl_init(pdev, &mt6397_pinctrl_data, mt6397->regmap); 52 } 53 54 static const struct of_device_id mt6397_pctrl_match[] = { 55 { .compatible = "mediatek,mt6397-pinctrl", }, 56 { } 57 }; 58 MODULE_DEVICE_TABLE(of, mt6397_pctrl_match); 59 60 static struct platform_driver mtk_pinctrl_driver = { 61 .probe = mt6397_pinctrl_probe, 62 .driver = { 63 .name = "mediatek-mt6397-pinctrl", 64 .of_match_table = mt6397_pctrl_match, 65 }, 66 }; 67 68 static int __init mtk_pinctrl_init(void) 69 { 70 return platform_driver_register(&mtk_pinctrl_driver); 71 } 72 73 module_init(mtk_pinctrl_init); 74 75 MODULE_LICENSE("GPL v2"); 76 MODULE_DESCRIPTION("MediaTek MT6397 Pinctrl Driver"); 77 MODULE_AUTHOR("Hongzhou Yang <hongzhou.yang@mediatek.com>"); 78