linux/include/linux/mfd/lochnagar.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Lochnagar internals
 *
 * Copyright (c) 2013-2018 Cirrus Logic, Inc. and
 *                         Cirrus Logic International Semiconductor Ltd.
 *
 * Author: Charles Keepax <[email protected]>
 */

#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/regmap.h>

#ifndef CIRRUS_LOCHNAGAR_H
#define CIRRUS_LOCHNAGAR_H

enum lochnagar_type { … };

/**
 * struct lochnagar - Core data for the Lochnagar audio board driver.
 *
 * @type: The type of Lochnagar device connected.
 * @dev: A pointer to the struct device for the main MFD.
 * @regmap: The devices main register map.
 * @analogue_config_lock: Lock used to protect updates in the analogue
 * configuration as these must not be changed whilst the hardware is processing
 * the last update.
 */
struct lochnagar { … };

/* Register Addresses */
#define LOCHNAGAR_SOFTWARE_RESET …
#define LOCHNAGAR_FIRMWARE_ID1 …
#define LOCHNAGAR_FIRMWARE_ID2 …

/* (0x0000)  Software Reset */
#define LOCHNAGAR_DEVICE_ID_MASK …
#define LOCHNAGAR_DEVICE_ID_SHIFT …
#define LOCHNAGAR_REV_ID_MASK …
#define LOCHNAGAR_REV_ID_SHIFT …

int lochnagar_update_config(struct lochnagar *lochnagar);

#endif