[linux-block.git] / include / linux / pmbus.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Hardware monitoring driver for PMBus devices
 *
 * Copyright (c) 2010, 2011 Ericsson AB.
 */

#ifndef _PMBUS_H_
#define _PMBUS_H_

#include <linux/bits.h>

/* flags */

/*
 * PMBUS_SKIP_STATUS_CHECK
 *
 * During register detection, skip checking the status register for
 * communication or command errors.
 *
 * Some PMBus chips respond with valid data when trying to read an unsupported
 * register. For such chips, checking the status register is mandatory when
 * trying to determine if a chip register exists or not.
 * Other PMBus chips don't support the STATUS_CML register, or report
 * communication errors for no explicable reason. For such chips, checking
 * the status register must be disabled.
 */
#define PMBUS_SKIP_STATUS_CHECK	BIT(0)

/*
 * PMBUS_WRITE_PROTECTED
 * Set if the chip is write protected and write protection is not determined
 * by the standard WRITE_PROTECT command.
 */
#define PMBUS_WRITE_PROTECTED	BIT(1)

struct pmbus_platform_data {
	u32 flags;		/* Device specific flags */

	/* regulator support */
	int num_regulators;
	struct regulator_init_data *reg_init_data;
};

#endif /* _PMBUS_H_ */
Commit	Line	Data
74ba9207	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
442aba78 GR	2	/*
	3	* Hardware monitoring driver for PMBus devices
	4	*
	5	* Copyright (c) 2010, 2011 Ericsson AB.
442aba78 GR	6	*/
	7
	8	#ifndef _PMBUS_H_
	9	#define _PMBUS_H_
	10
9e347728 GR	11	#include <linux/bits.h>
9e347728 GR	12
442aba78 GR	13	/* flags */
	14
	15	/*
	16	* PMBUS_SKIP_STATUS_CHECK
	17	*
	18	* During register detection, skip checking the status register for
	19	* communication or command errors.
	20	*
	21	* Some PMBus chips respond with valid data when trying to read an unsupported
	22	* register. For such chips, checking the status register is mandatory when
	23	* trying to determine if a chip register exists or not.
	24	* Other PMBus chips don't support the STATUS_CML register, or report
	25	* communication errors for no explicable reason. For such chips, checking
	26	* the status register must be disabled.
	27	*/
9e347728 GR	28	#define PMBUS_SKIP_STATUS_CHECK BIT(0)
	29
	30	/*
	31	* PMBUS_WRITE_PROTECTED
	32	* Set if the chip is write protected and write protection is not determined
	33	* by the standard WRITE_PROTECT command.
	34	*/
	35	#define PMBUS_WRITE_PROTECTED BIT(1)
442aba78 GR	36
	37	struct pmbus_platform_data {
	38	u32 flags; /* Device specific flags */
ddbb4db4 AT	39
	40	/* regulator support */
	41	int num_regulators;
	42	struct regulator_init_data *reg_init_data;
442aba78 GR	43	};
	44
	45	#endif /* _PMBUS_H_ */