/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
* Copyright ( C ) 2018 - 2024 Linaro Ltd .
*/
#ifndef _IPA_POWER_H_
#define _IPA_POWER_H_
#include <linux/types.h>
struct device;
struct ipa;
struct ipa_power_data;
/* IPA device power management function block */
extern const struct dev_pm_ops ipa_pm_ops;
/**
* ipa_core_clock_rate ( ) - Return the current IPA core clock rate
* @ ipa : IPA structure
*
* Return : The current clock rate ( in Hz ) , or 0 .
*/
u32 ipa_core_clock_rate(struct ipa *ipa);
/**
* ipa_power_retention ( ) - Control register retention on power collapse
* @ ipa : IPA pointer
* @ enable : Whether retention should be enabled or disabled
*/
void ipa_power_retention(struct ipa *ipa, bool enable);
/**
* ipa_power_init ( ) - Initialize IPA power management
* @ dev : IPA device
* @ data : Clock configuration data
*
* Return : A pointer to an ipa_power structure , or a pointer - coded error
*/
struct ipa_power *ipa_power_init(struct device *dev,
const struct ipa_power_data *data);
/**
* ipa_power_exit ( ) - Inverse of ipa_power_init ( )
* @ power : IPA power pointer
*/
void ipa_power_exit(struct ipa_power *power);
#endif /* _IPA_POWER_H_ */
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