/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. #ifndef _LINUX_SPMI_H#define _LINUX_SPMI_H#include <linux/types.h>#include <linux/device.h>#include <linux/mod_devicetable.h>/* Maximum slave identifier */ #define SPMI_MAX_SLAVE_ID 16/* SPMI Commands */ #define SPMI_CMD_EXT_WRITE 0x00#define SPMI_CMD_RESET 0x10#define SPMI_CMD_SLEEP 0x11#define SPMI_CMD_SHUTDOWN 0x12#define SPMI_CMD_WAKEUP 0x13#define SPMI_CMD_AUTHENTICATE 0x14#define SPMI_CMD_MSTR_READ 0x15#define SPMI_CMD_MSTR_WRITE 0x16#define SPMI_CMD_TRANSFER_BUS_OWNERSHIP 0x1A#define SPMI_CMD_DDB_MASTER_READ 0x1B#define SPMI_CMD_DDB_SLAVE_READ 0x1C#define SPMI_CMD_EXT_READ 0x20#define SPMI_CMD_EXT_WRITEL 0x30#define SPMI_CMD_EXT_READL 0x38#define SPMI_CMD_WRITE 0x40#define SPMI_CMD_READ 0x60#define SPMI_CMD_ZERO_WRITE 0x80/** * struct spmi_device - Basic representation of an SPMI device * @dev: Driver model representation of the device. * @ctrl: SPMI controller managing the bus hosting this device. * @usid: This devices' Unique Slave IDentifier. struct spmi_device {struct device dev;struct spmi_controller *ctrl;static inline struct spmi_device *to_spmi_device(struct device *d)return container_of(d, struct spmi_device, dev);static inline void *spmi_device_get_drvdata(const struct spmi_device *sdev)return dev_get_drvdata(&sdev->dev);static inline void spmi_device_set_drvdata(struct spmi_device *sdev, void *data)struct spmi_device *spmi_device_alloc(struct spmi_controller *ctrl);static inline void spmi_device_put(struct spmi_device *sdev)if (sdev)int spmi_device_add(struct spmi_device *sdev);void spmi_device_remove(struct spmi_device *sdev);/** * struct spmi_controller - interface to the SPMI master controller * @dev: Driver model representation of the device. * @nr: board-specific number identifier for this controller/bus * @cmd: sends a non-data command sequence on the SPMI bus. * @read_cmd: sends a register read command sequence on the SPMI bus. * @write_cmd: sends a register write command sequence on the SPMI bus. struct spmi_controller {struct device dev;unsigned int nr;int (*cmd)(struct spmi_controller *ctrl, u8 opcode, u8 sid);int (*read_cmd)(struct spmi_controller *ctrl, u8 opcode,int (*write_cmd)(struct spmi_controller *ctrl, u8 opcode,const u8 *buf, size_t len);static inline struct spmi_controller *to_spmi_controller(struct device *d)return container_of(d, struct spmi_controller, dev);static inline void *spmi_controller_get_drvdata(const struct spmi_controller *ctrl)return dev_get_drvdata(&ctrl->dev);static inline void spmi_controller_set_drvdata(struct spmi_controller *ctrl,void *data)struct spmi_controller *spmi_controller_alloc(struct device *parent,/** * spmi_controller_put() - decrement controller refcount * @ctrl SPMI controller. static inline void spmi_controller_put(struct spmi_controller *ctrl)if (ctrl)int spmi_controller_add(struct spmi_controller *ctrl);void spmi_controller_remove(struct spmi_controller *ctrl);struct spmi_controller *devm_spmi_controller_alloc(struct device *parent, size_t size);int devm_spmi_controller_add(struct device *parent, struct spmi_controller *ctrl);/** * struct spmi_driver - SPMI slave device driver * @driver: SPMI device drivers should initialize name and owner field of * this structure. * @probe: binds this driver to a SPMI device. * @remove: unbinds this driver from the SPMI device. * * If PM runtime support is desired for a slave, a device driver can call * pm_runtime_put() from their probe() routine (and a balancing * pm_runtime_get() in remove()). PM runtime support for a slave is * implemented by issuing a SLEEP command to the slave on runtime_suspend(), * transitioning the slave into the SLEEP state. On runtime_resume(), a WAKEUP * command is sent to the slave to bring it back to ACTIVE. struct spmi_driver {struct device_driver driver;int (*probe)(struct spmi_device *sdev);void (*remove)(struct spmi_device *sdev);void (*shutdown)(struct spmi_device *sdev);static inline struct spmi_driver *to_spmi_driver(struct device_driver *d)return container_of(d, struct spmi_driver, driver);#define spmi_driver_register(sdrv) \int __spmi_driver_register(struct spmi_driver *sdrv, struct module *owner);/** * spmi_driver_unregister() - unregister an SPMI client driver * @sdrv: the driver to unregister static inline void spmi_driver_unregister(struct spmi_driver *sdrv)if (sdrv)#define module_spmi_driver(__spmi_driver) \struct device_node;struct spmi_device *spmi_find_device_by_of_node(struct device_node *np);int spmi_register_read(struct spmi_device *sdev, u8 addr, u8 *buf);int spmi_ext_register_read(struct spmi_device *sdev, u8 addr, u8 *buf,int spmi_ext_register_readl(struct spmi_device *sdev, u16 addr, u8 *buf,int spmi_register_write(struct spmi_device *sdev, u8 addr, u8 data);int spmi_register_zero_write(struct spmi_device *sdev, u8 data);int spmi_ext_register_write(struct spmi_device *sdev, u8 addr,const u8 *buf, size_t len);int spmi_ext_register_writel(struct spmi_device *sdev, u16 addr,const u8 *buf, size_t len);int spmi_command_reset(struct spmi_device *sdev);int spmi_command_sleep(struct spmi_device *sdev);int spmi_command_wakeup(struct spmi_device *sdev);int spmi_command_shutdown(struct spmi_device *sdev);#endif quality 100%
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