1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Core interface for Renesas Synchronization Management Unit (SMU) devices. 4 * 5 * Copyright (C) 2021 Integrated Device Technology, Inc., a Renesas Company. 6 */ 7 8 #ifndef __LINUX_MFD_RSMU_H 9 #define __LINUX_MFD_RSMU_H 10 11 /* The supported devices are ClockMatrix, Sabre and SnowLotus */ 12 enum rsmu_type { 13 RSMU_CM = 0x34000, 14 RSMU_SABRE = 0x33810, 15 RSMU_SL = 0x19850, 16 }; 17 18 /** 19 * 20 * struct rsmu_ddata - device data structure for sub devices. 21 * 22 * @dev: i2c/spi device. 23 * @regmap: i2c/spi bus access. 24 * @lock: mutex used by sub devices to make sure a series of 25 * bus access requests are not interrupted. 26 * @type: RSMU device type. 27 * @page: i2c/spi bus driver internal use only. 28 */ 29 struct rsmu_ddata { 30 struct device *dev; 31 struct regmap *regmap; 32 struct mutex lock; 33 enum rsmu_type type; 34 u16 page; 35 }; 36 #endif /* __LINUX_MFD_RSMU_H */ 37