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

/*
 * PCC (Platform Communications Channel) methods
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; version 2
 * of the License.
 */

#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
866ae696 HT	1	/*
	2	* PCC (Platform Communications Channel) methods
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; version 2
	7	* of the License.
	8	*/
	9
	10	#ifndef _PCC_H
	11	#define _PCC_H
	12
	13	#include <linux/mailbox_controller.h>
	14	#include <linux/mailbox_client.h>
	15
c4b766c2	16	#define MAX_PCC_SUBSPACES 256
866ae696 HT	17	#ifdef CONFIG_PCC
	18	extern struct mbox_chan pcc_mbox_request_channel(struct mbox_client cl,
	19	int subspace_id);
	20	extern void pcc_mbox_free_channel(struct mbox_chan *chan);
	21	#else
	22	static inline struct mbox_chan pcc_mbox_request_channel(struct mbox_client cl,
	23	int subspace_id)
	24	{
d0679cfa	25	return ERR_PTR(-ENODEV);
866ae696 HT	26	}
	27	static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
	28	#endif
	29
	30	#endif /* _PCC_H */