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| 3 | |
| 4 | * Copyright (C) 2018-2024 Linaro Ltd.
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| 5 |
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| 6 | #ifndef _IPA_POWER_H_
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| 7 | #define _IPA_POWER_H_
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| 8 |
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| 9 | #include <linux/types.h>
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| 10 |
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| 11 | struct device;
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| 12 |
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| 13 | struct ipa;
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| 14 | struct ipa_power_data;
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| 15 |
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| 16 |
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| 17 | extern const struct dev_pm_ops ipa_pm_ops;
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| 18 |
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| 19 | |
| 20 | * ipa_core_clock_rate() - Return the current IPA core clock rate
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| 21 | * @ipa: IPA structure
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| 22 | *
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| 23 | * Return: The current clock rate (in Hz), or 0.
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| 24 |
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| 25 | u32 ipa_core_clock_rate(struct ipa *ipa);
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| 26 |
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| 27 | |
| 28 | * ipa_power_retention() - Control register retention on power collapse
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| 29 | * @ipa: IPA pointer
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| 30 | * @enable: Whether retention should be enabled or disabled
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| 31 |
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| 32 | void ipa_power_retention(struct ipa *ipa, bool enable);
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| 33 |
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| 34 | |
| 35 | * ipa_power_init() - Initialize IPA power management
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| 36 | * @dev: IPA device
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| 37 | * @data: Clock configuration data
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| 38 | *
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| 39 | * Return: A pointer to an ipa_power structure, or a pointer-coded error
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| 40 |
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| 41 | struct ipa_power *ipa_power_init(struct device *dev,
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| 42 | const struct ipa_power_data *data);
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| 43 |
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| 44 | |
| 45 | * ipa_power_exit() - Inverse of ipa_power_init()
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| 46 | * @power: IPA power pointer
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| 47 |
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| 48 | void ipa_power_exit(struct ipa_power *power);
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| 49 |
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| 50 | #endif
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