/* SPDX-License-Identifier: GPL-2.0+ */ /* * Core interface for Renesas Synchronization Management Unit (SMU) devices. * * Copyright (C) 2021 Integrated Device Technology, Inc., a Renesas Company. */ #ifndef __LINUX_MFD_RSMU_H #define __LINUX_MFD_RSMU_H #define RSMU_MAX_WRITE_COUNT (255) #define RSMU_MAX_READ_COUNT (255) /* The supported devices are ClockMatrix, Sabre and SnowLotus */ enum rsmu_type { RSMU_CM = 0x34000, RSMU_SABRE = 0x33810, RSMU_SL = 0x19850, }; /** * * struct rsmu_ddata - device data structure for sub devices. * * @dev: i2c/spi device. * @regmap: i2c/spi bus access. * @lock: mutex used by sub devices to make sure a series of * bus access requests are not interrupted. * @type: RSMU device type. * @page: i2c/spi bus driver internal use only. */ struct rsmu_ddata { struct device *dev; struct regmap *regmap; struct mutex lock; enum rsmu_type type; u32 page; }; #endif /* __LINUX_MFD_RSMU_H */