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88dcab0650
The Imagination DRM driver defines pvr_power_put() to pass the return value of pm_runtime_put() to the caller, but then it never uses the return value of pvr_power_put(). Modify pvr_power_put() to discard the pm_runtime_put() return value and change its return type to void. No intentional functional impact. This will facilitate a planned change of the pm_runtime_put() return type to void in the future. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Matt Coster <matt.coster@imgtec.com> Link: https://patch.msgid.link/8642685.T7Z3S40VBb@rafael.j.wysocki
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
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/* Copyright (c) 2023 Imagination Technologies Ltd. */
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#ifndef PVR_POWER_H
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#define PVR_POWER_H
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#include "pvr_device.h"
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#include <linux/mutex.h>
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#include <linux/pm_runtime.h>
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int pvr_watchdog_init(struct pvr_device *pvr_dev);
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void pvr_watchdog_fini(struct pvr_device *pvr_dev);
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void pvr_device_lost(struct pvr_device *pvr_dev);
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bool pvr_power_is_idle(struct pvr_device *pvr_dev);
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int pvr_power_device_suspend(struct device *dev);
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int pvr_power_device_resume(struct device *dev);
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int pvr_power_device_idle(struct device *dev);
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int pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset);
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static __always_inline int
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pvr_power_get(struct pvr_device *pvr_dev)
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{
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struct drm_device *drm_dev = from_pvr_device(pvr_dev);
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return pm_runtime_resume_and_get(drm_dev->dev);
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}
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static __always_inline void
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pvr_power_put(struct pvr_device *pvr_dev)
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{
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struct drm_device *drm_dev = from_pvr_device(pvr_dev);
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pm_runtime_put(drm_dev->dev);
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}
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int pvr_power_domains_init(struct pvr_device *pvr_dev);
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void pvr_power_domains_fini(struct pvr_device *pvr_dev);
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/**
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* struct pvr_power_sequence_ops - Platform specific power sequence operations.
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* @init: Pointer to the platform-specific initialization function.
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* @power_on: Pointer to the platform-specific power on function.
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* @power_off: Pointer to the platform-specific power off function.
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*/
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struct pvr_power_sequence_ops {
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int (*init)(struct pvr_device *pvr_dev);
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int (*power_on)(struct pvr_device *pvr_dev);
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int (*power_off)(struct pvr_device *pvr_dev);
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};
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extern const struct pvr_power_sequence_ops pvr_power_sequence_ops_manual;
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extern const struct pvr_power_sequence_ops pvr_power_sequence_ops_pwrseq;
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#endif /* PVR_POWER_H */
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