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Currently, pm_runtime_resume_and_get() is invoked in the driver's open callback, and pm_runtime_put_autosuspend() is called in the close callback. As a result, the device remains active whenever an application opens it, even if no I/O is performed, leading to unnecessary power consumption. Move the runtime PM calls to the AIE2 callbacks that actually interact with the hardware. The device will automatically suspend after 5 seconds of inactivity (no hardware accesses and no pending commands), and it will be resumed on the next hardware access. Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Link: https://lore.kernel.org/r/20250923152229.1303625-1-lizhi.hou@amd.com
19 lines
497 B
C
19 lines
497 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2025, Advanced Micro Devices, Inc.
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*/
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#ifndef _AMDXDNA_PM_H_
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#define _AMDXDNA_PM_H_
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#include "amdxdna_pci_drv.h"
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int amdxdna_pm_suspend(struct device *dev);
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int amdxdna_pm_resume(struct device *dev);
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int amdxdna_pm_resume_get(struct amdxdna_dev *xdna);
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void amdxdna_pm_suspend_put(struct amdxdna_dev *xdna);
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void amdxdna_pm_init(struct amdxdna_dev *xdna);
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void amdxdna_pm_fini(struct amdxdna_dev *xdna);
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#endif /* _AMDXDNA_PM_H_ */
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