[RESEND PATCH v4 3/5] thermal: streamline get_trend callbacks

Caesar Wang
2016-05-27T08:36:46Z

From: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

The .get_trend callback in struct thermal_zone_device_ops has
the prototype:
int (*get_trend) (struct thermal_zone_device *, int,
enum thermal_trend *);
whereas the .get_trend callback in struct thermal_zone_of_device_ops
has:
int (*get_trend)(void *, long *);

Streamline both prototypes and add the trip argument to the OF callback
aswell and use enum thermal_trend * instead of an integer pointer.

While the OF prototype may be the better one, this should be decided at
framework level and not on OF level.

Signed-off-by: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Signed-off-by: Caesar Wang <wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Cc: Zhang Rui <rui.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Eduardo Valentin <edubezval-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

drivers/thermal/of-thermal.c | 11 +---------
drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 25 +++++++---------------
include/linux/thermal.h | 2 +-
3 files changed, 10 insertions(+), 28 deletions(-)

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 2d2a06f..ba72c35 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -202,24 +202,15 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
enum thermal_trend *trend)
{
struct __thermal_zone *data = tz->devdata;
- long dev_trend;
int r;

if (!data->ops->get_trend)
return -EINVAL;

- r = data->ops->get_trend(data->sensor_data, &dev_trend);
+ r = data->ops->get_trend(data->sensor_data, trip, trend);
if (r)
return r;

- /* TODO: These intervals might have some thresholds, but in core code */
- if (dev_trend > 0)
- *trend = THERMAL_TREND_RAISING;
- else if (dev_trend < 0)
- *trend = THERMAL_TREND_DROPPING;
- else
- *trend = THERMAL_TREND_STABLE;
-
return 0;
}

diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 15c0a9a..4a6757c 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -239,7 +239,7 @@ static int ti_thermal_get_trip_temp(struct thermal_zone_device *thermal,
return 0;
}

-static int __ti_thermal_get_trend(void *p, long *trend)
+static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend)
{
struct ti_thermal_data *data = p;
struct ti_bandgap *bgp;
@@ -252,22 +252,6 @@ static int __ti_thermal_get_trend(void *p, long *trend)
if (ret)
return ret;

- *trend = tr;
-
- return 0;
-}
-
-/* Get the temperature trend callback functions for thermal zone */
-static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
- int trip, enum thermal_trend *trend)
-{
- int ret;
- long tr;
-
- ret = __ti_thermal_get_trend(thermal->devdata, &tr);
- if (ret)
- return ret;
-
if (tr > 0)
*trend = THERMAL_TREND_RAISING;
else if (tr < 0)
@@ -278,6 +262,13 @@ static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
return 0;
}

+/* Get the temperature trend callback functions for thermal zone */
+static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
+ int trip, enum thermal_trend *trend)
+{
+ return __ti_thermal_get_trend(thermal->devdata, trip, trend);
+}
+
/* Get critical temperature callback functions for thermal zone */
static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal,
int *temp)
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index f68da05..669093c 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -348,7 +348,7 @@ struct thermal_genl_event {
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
- int (*get_trend)(void *, long *);
+ int (*get_trend)(void *, int, enum thermal_trend *);
int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
--
1.9.1