include/linux/pmbus.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Hardware monitoring driver for PMBus devices
   4  *
   5  * Copyright (c) 2010, 2011 Ericsson AB.
   6  */
   7
   8 #ifndef _PMBUS_H_
   9 #define _PMBUS_H_
  10
  11 /* flags */
  12
  13 /*
  14  * PMBUS_SKIP_STATUS_CHECK
  15  *
  16  * During register detection, skip checking the status register for
  17  * communication or command errors.
  18  *
  19  * Some PMBus chips respond with valid data when trying to read an unsupported
  20  * register. For such chips, checking the status register is mandatory when
  21  * trying to determine if a chip register exists or not.
  22  * Other PMBus chips don't support the STATUS_CML register, or report
  23  * communication errors for no explicable reason. For such chips, checking
  24  * the status register must be disabled.
  25  */
  26 #define PMBUS_SKIP_STATUS_CHECK (1 << 0)
  27
  28 struct pmbus_platform_data {
  29         u32 flags;              /* Device specific flags */
  30
  31         /* regulator support */
  32         int num_regulators;
  33         struct regulator_init_data *reg_init_data;
  34 };
  35
  36 #endif /* _PMBUS_H_ */