include/thermal.h

   1 /*
   2  *
   3  * (C) Copyright 2014 Freescale Semiconductor, Inc
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef _THERMAL_H_
   9 #define _THERMAL_H_
  10
  11 #include <dm.h>
  12
  13 int thermal_get_temp(struct udevice *dev, int *temp);
  14
  15 /**
  16  * struct struct dm_thermal_ops - Driver model Thermal operations
  17  *
  18  * The uclass interface is implemented by all Thermal devices which use
  19  * driver model.
  20  */
  21 struct dm_thermal_ops {
  22         /**
  23          * Get the current temperature
  24          *
  25          * The device provided is the slave device. It's parent controller
  26          * will be used to provide the communication.
  27          *
  28          * This must be called before doing any transfers with a Thermal slave.
  29          * It will enable and initialize any Thermal hardware as necessary,
  30          * and make sure that the SCK line is in the correct idle state. It is
  31          * not allowed to claim the same bus for several slaves without
  32          * releasing the bus in between.
  33          *
  34          * @dev:        The Thermal device
  35          *
  36          * Returns: 0 if the bus was claimed successfully, or a negative value
  37          * if it wasn't.
  38          */
  39         int (*get_temp)(struct udevice *dev, int *temp);
  40 };
  41
  42 #endif  /* _THERMAL_H_ */