Release 4.18 drivers/staging/greybus/bundle.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Greybus bundles
 *
 * Copyright 2014 Google Inc.
 * Copyright 2014 Linaro Ltd.
 */

#ifndef __BUNDLE_H

#define __BUNDLE_H

#include <linux/list.h>


#define	BUNDLE_ID_NONE	U8_MAX

/* Greybus "public" definitions" */

struct gb_bundle {
	
struct device		dev;
	
struct gb_interface	*intf;

	
u8			id;
	
u8			class;
	
u8			class_major;
	
u8			class_minor;

	
size_t			num_cports;
	
struct greybus_descriptor_cport *cport_desc;

	
struct list_head	connections;
	
u8			*state;

	
struct list_head	links;	/* interface->bundles */
};

#define to_gb_bundle(d) container_of(d, struct gb_bundle, dev)

/* Greybus "private" definitions" */
struct gb_bundle *gb_bundle_create(struct gb_interface *intf, u8 bundle_id,
				   u8 class);
int gb_bundle_add(struct gb_bundle *bundle);
void gb_bundle_destroy(struct gb_bundle *bundle);

/* Bundle Runtime PM wrappers */
#ifdef CONFIG_PM


static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
{
	int retval;

	retval = pm_runtime_get_sync(&bundle->dev);
	if (retval < 0) {
		dev_err(&bundle->dev,
			"pm_runtime_get_sync failed: %d\n", retval);
		pm_runtime_put_noidle(&bundle->dev);
		return retval;
	}

	return 0;
}

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static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
{
	int retval;

	pm_runtime_mark_last_busy(&bundle->dev);
	retval = pm_runtime_put_autosuspend(&bundle->dev);

	return retval;
}

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static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle)
{
	pm_runtime_get_noresume(&bundle->dev);
}

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static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle)
{
	pm_runtime_put_noidle(&bundle->dev);
}

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#else


static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
{ return 0; }
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static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
{ return 0; }

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static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) {}
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static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) {}
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#endif

#endif /* __BUNDLE_H */
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Directory: drivers/staging/greybus

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