linux/drivers/reset/sti/reset-syscfg.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2013 STMicroelectronics (R&D) Limited
 * Author: Stephen Gallimore <[email protected]>
 */
#ifndef __STI_RESET_SYSCFG_H
#define __STI_RESET_SYSCFG_H

#include <linux/device.h>
#include <linux/regmap.h>
#include <linux/reset-controller.h>

/**
 * Reset channel description for a system configuration register based
 * reset controller.
 *
 * @compatible: Compatible string of the syscon regmap containing this
 *              channel's control and ack (status) bits.
 * @reset: Regmap field description of the channel's reset bit.
 * @ack: Regmap field description of the channel's acknowledge bit.
 */
struct syscfg_reset_channel_data { … };

#define _SYSCFG_RST_CH(_c, _rr, _rb, _ar, _ab) …

#define _SYSCFG_RST_CH_NO_ACK(_c, _rr, _rb) …

/**
 * Description of a system configuration register based reset controller.
 *
 * @wait_for_ack: The controller will wait for reset assert and de-assert to
 *                be "ack'd" in a channel's ack field.
 * @active_low: Are the resets in this controller active low, i.e. clearing
 *              the reset bit puts the hardware into reset.
 * @nr_channels: The number of reset channels in this controller.
 * @channels: An array of reset channel descriptions.
 */
struct syscfg_reset_controller_data { … };

/**
 * syscfg_reset_probe(): platform device probe function used by syscfg
 *                       reset controller drivers. This registers a reset
 *                       controller configured by the OF match data for
 *                       the compatible device which should be of type
 *                       "struct syscfg_reset_controller_data".
 *
 * @pdev: platform device
 */
int syscfg_reset_probe(struct platform_device *pdev);

#endif /* __STI_RESET_SYSCFG_H */