1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Based on pinctrl-mt6765.c 4 * 5 * Copyright (C) 2018 MediaTek Inc. 6 * 7 * Author: ZH Chen <zh.chen@mediatek.com> 8 * 9 * Copyright (C) Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> 10 * 11 */ 12 13 #include "pinctrl-mtk-mt6797.h" 14 #include "pinctrl-paris.h" 15 16 /* 17 * MT6797 have multiple bases to program pin configuration listed as the below: 18 * gpio:0x10005000, iocfg[l]:0x10002000, iocfg[b]:0x10002400, 19 * iocfg[r]:0x10002800, iocfg[t]:0x10002C00. 20 * _i_base could be used to indicate what base the pin should be mapped into. 21 */ 22 23 static const struct mtk_pin_field_calc mt6797_pin_mode_range[] = { 24 PIN_FIELD(0, 261, 0x300, 0x10, 0, 4), 25 }; 26 27 static const struct mtk_pin_field_calc mt6797_pin_dir_range[] = { 28 PIN_FIELD(0, 261, 0x0, 0x10, 0, 1), 29 }; 30 31 static const struct mtk_pin_field_calc mt6797_pin_di_range[] = { 32 PIN_FIELD(0, 261, 0x200, 0x10, 0, 1), 33 }; 34 35 static const struct mtk_pin_field_calc mt6797_pin_do_range[] = { 36 PIN_FIELD(0, 261, 0x100, 0x10, 0, 1), 37 }; 38 39 static const struct mtk_pin_reg_calc mt6797_reg_cals[PINCTRL_PIN_REG_MAX] = { 40 [PINCTRL_PIN_REG_MODE] = MTK_RANGE(mt6797_pin_mode_range), 41 [PINCTRL_PIN_REG_DIR] = MTK_RANGE(mt6797_pin_dir_range), 42 [PINCTRL_PIN_REG_DI] = MTK_RANGE(mt6797_pin_di_range), 43 [PINCTRL_PIN_REG_DO] = MTK_RANGE(mt6797_pin_do_range), 44 }; 45 46 static const char * const mt6797_pinctrl_register_base_names[] = { 47 "gpio", "iocfgl", "iocfgb", "iocfgr", "iocfgt", 48 }; 49 50 static const struct mtk_pin_soc mt6797_data = { 51 .reg_cal = mt6797_reg_cals, 52 .pins = mtk_pins_mt6797, 53 .npins = ARRAY_SIZE(mtk_pins_mt6797), 54 .ngrps = ARRAY_SIZE(mtk_pins_mt6797), 55 .gpio_m = 0, 56 .base_names = mt6797_pinctrl_register_base_names, 57 .nbase_names = ARRAY_SIZE(mt6797_pinctrl_register_base_names), 58 }; 59 60 static const struct of_device_id mt6797_pinctrl_of_match[] = { 61 { .compatible = "mediatek,mt6797-pinctrl", .data = &mt6797_data }, 62 { } 63 }; 64 65 static struct platform_driver mt6797_pinctrl_driver = { 66 .driver = { 67 .name = "mt6797-pinctrl", 68 .of_match_table = mt6797_pinctrl_of_match, 69 }, 70 .probe = mtk_paris_pinctrl_probe, 71 }; 72 73 static int __init mt6797_pinctrl_init(void) 74 { 75 return platform_driver_register(&mt6797_pinctrl_driver); 76 } 77 arch_initcall(mt6797_pinctrl_init); 78