[mirror_ubuntu-jammy-kernel.git] / include / acpi / pcc.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * PCC (Platform Communications Channel) methods
 */

#ifndef _PCC_H
#define _PCC_H

#include <linux/mailbox_controller.h>
#include <linux/mailbox_client.h>

#define MAX_PCC_SUBSPACES	256
#ifdef CONFIG_PCC
extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
						  int subspace_id);
extern void pcc_mbox_free_channel(struct mbox_chan *chan);
#else
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
							 int subspace_id)
{
	return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
#endif

#endif /* _PCC_H */
Commit	Line	Data
b886d83c	1	/* SPDX-License-Identifier: GPL-2.0-only */
866ae696 HT	2	/*
866ae696 HT	3	* PCC (Platform Communications Channel) methods
866ae696 HT	4	*/
	5
	6	#ifndef _PCC_H
	7	#define _PCC_H
	8
	9	#include <linux/mailbox_controller.h>
	10	#include <linux/mailbox_client.h>
	11
c4b766c2	12	#define MAX_PCC_SUBSPACES 256
866ae696 HT	13	#ifdef CONFIG_PCC
	14	extern struct mbox_chan pcc_mbox_request_channel(struct mbox_client cl,
	15	int subspace_id);
	16	extern void pcc_mbox_free_channel(struct mbox_chan *chan);
	17	#else
	18	static inline struct mbox_chan pcc_mbox_request_channel(struct mbox_client cl,
	19	int subspace_id)
	20	{
d0679cfa	21	return ERR_PTR(-ENODEV);
866ae696 HT	22	}
	23	static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
	24	#endif
	25
	26	#endif /* _PCC_H */