target/linux/mediatek/patches/0021-thermal-of-implement-.set_trips-for-device-tree-ther.patch

   1 From 525f68bb9d9f6334dbcd2b5ec99f9d797ff53618 Mon Sep 17 00:00:00 2001
   2 From: Sascha Hauer <s.hauer@pengutronix.de>
   3 Date: Wed, 13 May 2015 10:52:40 +0200
   4 Subject: [PATCH 21/76] thermal: of: implement .set_trips for device tree
   5  thermal zones
   6
   7 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
   8 ---
   9  drivers/thermal/of-thermal.c |   12 ++++++++++++
  10  include/linux/thermal.h      |    3 +++
  11  2 files changed, 15 insertions(+)
  12
  13 --- a/drivers/thermal/of-thermal.c
  14 +++ b/drivers/thermal/of-thermal.c
  15 @@ -97,6 +97,17 @@ static int of_thermal_get_temp(struct th
  16         return data->ops->get_temp(data->sensor_data, temp);
  17  }
  18
  19 +static int of_thermal_set_trips(struct thermal_zone_device *tz,
  20 +                              int low, int high)
  21 +{
  22 +       struct __thermal_zone *data = tz->devdata;
  23 +
  24 +       if (!data->ops || !data->ops->set_trips)
  25 +               return -ENOSYS;
  26 +
  27 +       return data->ops->set_trips(data->sensor_data, low, high);
  28 +}
  29 +
  30  /**
  31   * of_thermal_get_ntrips - function to export number of available trip
  32   *                        points.
  33 @@ -367,6 +378,7 @@ static int of_thermal_get_crit_temp(stru
  34
  35  static const struct thermal_zone_device_ops of_thermal_ops = {
  36         .get_temp = of_thermal_get_temp,
  37 +       .set_trips = of_thermal_set_trips,
  38         .get_trend = of_thermal_get_trend,
  39         .set_emul_temp = of_thermal_set_emul_temp,
  40
  41 --- a/include/linux/thermal.h
  42 +++ b/include/linux/thermal.h
  43 @@ -272,12 +272,15 @@ struct thermal_genl_event {
  44   *
  45   * Optional:
  46   * @get_trend: a pointer to a function that reads the sensor temperature trend.
  47 + * @set_trips: a pointer to a function that sets a temperature window which shall
  48 + *             trigger an interrupt when it is left.
  49   * @set_emul_temp: a pointer to a function that sets sensor emulated
  50   *                temperature.
  51   */
  52  struct thermal_zone_of_device_ops {
  53         int (*get_temp)(void *, int *);
  54         int (*get_trend)(void *, int, enum thermal_trend *);
  55 +       int (*set_trips)(void *, int, int);
  56         int (*set_emul_temp)(void *, int);
  57  };
  58