[PATCH 05/30] Thermal: Remove tc1/tc2 in generic thermal layer.
From: Len Brown
Date: Tue Oct 09 2012 - 02:09:49 EST
From: Zhang Rui <rui.zhang@xxxxxxxxx>
Remove tc1/tc2 in generic thermal layer.
.get_trend() callback starts to take effect from this patch.
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Reviewed-by: Rafael J. Wysocki <rjw@xxxxxxx>
Reviewed-by: Valentin, Eduardo <eduardo.valentin@xxxxxx>
---
drivers/acpi/thermal.c | 5 +----
drivers/platform/x86/acerhdf.c | 2 +-
drivers/platform/x86/intel_mid_thermal.c | 2 +-
drivers/power/power_supply_core.c | 2 +-
drivers/staging/omap-thermal/omap-thermal-common.c | 2 +-
drivers/thermal/spear_thermal.c | 2 +-
drivers/thermal/thermal_sys.c | 24 ++++++----------------
include/linux/thermal.h | 5 +----
8 files changed, 13 insertions(+), 31 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index bb95709..07cb217 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -897,15 +897,12 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
tz->thermal_zone =
thermal_zone_device_register("acpitz", trips, 0, tz,
&acpi_thermal_zone_ops,
- tz->trips.passive.tc1,
- tz->trips.passive.tc2,
tz->trips.passive.tsp*100,
tz->polling_frequency*100);
else
tz->thermal_zone =
thermal_zone_device_register("acpitz", trips, 0, tz,
- &acpi_thermal_zone_ops,
- 0, 0, 0,
+ &acpi_thermal_zone_ops, 0,
tz->polling_frequency*100);
if (IS_ERR(tz->thermal_zone))
return -ENODEV;
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index a207466..84c5688 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -662,7 +662,7 @@ static int acerhdf_register_thermal(void)
return -EINVAL;
thz_dev = thermal_zone_device_register("acerhdf", 1, 0, NULL,
- &acerhdf_dev_ops, 0, 0, 0,
+ &acerhdf_dev_ops, 0,
(kernelmode) ? interval*1000 : 0);
if (IS_ERR(thz_dev))
return -EINVAL;
diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
index 3a27113..c809761 100644
--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -502,7 +502,7 @@ static int mid_thermal_probe(struct platform_device *pdev)
goto err;
}
pinfo->tzd[i] = thermal_zone_device_register(name[i],
- 0, 0, td_info, &tzd_ops, 0, 0, 0, 0);
+ 0, 0, td_info, &tzd_ops, 0, 0);
if (IS_ERR(pinfo->tzd[i])) {
kfree(td_info);
ret = PTR_ERR(pinfo->tzd[i]);
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 08cc8a3..2436f13 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -201,7 +201,7 @@ static int psy_register_thermal(struct power_supply *psy)
for (i = 0; i < psy->num_properties; i++) {
if (psy->properties[i] == POWER_SUPPLY_PROP_TEMP) {
psy->tzd = thermal_zone_device_register(psy->name, 0, 0,
- psy, &psy_tzd_ops, 0, 0, 0, 0);
+ psy, &psy_tzd_ops, 0, 0);
if (IS_ERR(psy->tzd))
return PTR_ERR(psy->tzd);
break;
diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c b/drivers/staging/omap-thermal/omap-thermal-common.c
index 0675a5e..d543d5c 100644
--- a/drivers/staging/omap-thermal/omap-thermal-common.c
+++ b/drivers/staging/omap-thermal/omap-thermal-common.c
@@ -246,7 +246,7 @@ int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id,
/* Create thermal zone */
data->omap_thermal = thermal_zone_device_register(domain,
OMAP_TRIP_NUMBER, 0, data, &omap_thermal_ops,
- 0, FAST_TEMP_MONITORING_RATE, 0, 0);
+ 0, FAST_TEMP_MONITORING_RATE);
if (IS_ERR_OR_NULL(data->omap_thermal)) {
dev_err(bg_ptr->dev, "thermal zone device is NULL\n");
return PTR_ERR(data->omap_thermal);
diff --git a/drivers/thermal/spear_thermal.c b/drivers/thermal/spear_thermal.c
index 5f8ee39..9bc9692 100644
--- a/drivers/thermal/spear_thermal.c
+++ b/drivers/thermal/spear_thermal.c
@@ -147,7 +147,7 @@ static int spear_thermal_probe(struct platform_device *pdev)
writel_relaxed(stdev->flags, stdev->thermal_base);
spear_thermal = thermal_zone_device_register("spear_thermal", 0, 0,
- stdev, &ops, 0, 0, 0, 0);
+ stdev, &ops, 0, 0);
if (IS_ERR(spear_thermal)) {
dev_err(&pdev->dev, "thermal zone device is NULL\n");
ret = PTR_ERR(spear_thermal);
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 146aa04..0cf3dce 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -335,9 +335,6 @@ passive_store(struct device *dev, struct device_attribute *attr,
tz->passive_delay = 0;
}
- tz->tc1 = 1;
- tz->tc2 = 1;
-
tz->forced_passive = state;
thermal_zone_device_update(tz);
@@ -718,13 +715,12 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
static void thermal_zone_device_passive(struct thermal_zone_device *tz,
int temp, int trip_temp, int trip)
{
- int trend = 0;
+ enum thermal_trend trend;
struct thermal_cooling_device_instance *instance;
struct thermal_cooling_device *cdev;
long state, max_state;
- if (!tz->ops->get_trend ||
- tz->ops->get_trend(tz, trip, (enum thermal_trend *)&trend)) {
+ if (!tz->ops->get_trend || tz->ops->get_trend(tz, trip, &trend)) {
/*
* compare the current temperature and previous temperature
* to get the thermal trend, if no special requirement
@@ -747,11 +743,8 @@ static void thermal_zone_device_passive(struct thermal_zone_device *tz,
if (temp >= trip_temp) {
tz->passive = true;
- trend = (tz->tc1 * (temp - tz->last_temperature)) +
- (tz->tc2 * (temp - trip_temp));
-
/* Heating up? */
- if (trend > 0) {
+ if (trend == THERMAL_TREND_RAISING) {
list_for_each_entry(instance, &tz->cooling_devices,
node) {
if (instance->trip != trip)
@@ -762,7 +755,7 @@ static void thermal_zone_device_passive(struct thermal_zone_device *tz,
if (state++ < max_state)
cdev->ops->set_cur_state(cdev, state);
}
- } else if (trend < 0) { /* Cooling off? */
+ } else if (trend == THERMAL_TREND_DROPPING) { /* Cooling off? */
list_for_each_entry(instance, &tz->cooling_devices,
node) {
if (instance->trip != trip)
@@ -1288,8 +1281,6 @@ static void remove_trip_attrs(struct thermal_zone_device *tz)
* @mask: a bit string indicating the writeablility of trip points
* @devdata: private device data
* @ops: standard thermal zone device callbacks
- * @tc1: thermal coefficient 1 for passive calculations
- * @tc2: thermal coefficient 2 for passive calculations
* @passive_delay: number of milliseconds to wait between polls when
* performing passive cooling
* @polling_delay: number of milliseconds to wait between polls when checking
@@ -1297,13 +1288,12 @@ static void remove_trip_attrs(struct thermal_zone_device *tz)
* driven systems)
*
* thermal_zone_device_unregister() must be called when the device is no
- * longer needed. The passive cooling formula uses tc1 and tc2 as described in
- * section 11.1.5.1 of the ACPI specification 3.0.
+ * longer needed. The passive cooling depends on the .get_trend() return value.
*/
struct thermal_zone_device *thermal_zone_device_register(const char *type,
int trips, int mask, void *devdata,
const struct thermal_zone_device_ops *ops,
- int tc1, int tc2, int passive_delay, int polling_delay)
+ int passive_delay, int polling_delay)
{
struct thermal_zone_device *tz;
struct thermal_cooling_device *pos;
@@ -1339,8 +1329,6 @@ struct thermal_zone_device *thermal_zone_device_register(const char *type,
tz->device.class = &thermal_class;
tz->devdata = devdata;
tz->trips = trips;
- tz->tc1 = tc1;
- tz->tc2 = tc2;
tz->passive_delay = passive_delay;
tz->polling_delay = polling_delay;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 6a1d43d..38267a5 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -115,8 +115,6 @@ struct thermal_zone_device {
struct thermal_attr *trip_hyst_attrs;
void *devdata;
int trips;
- int tc1;
- int tc2;
int passive_delay;
int polling_delay;
int temperature;
@@ -163,8 +161,7 @@ enum {
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
- void *, const struct thermal_zone_device_ops *, int tc1,
- int tc2, int passive_freq, int polling_freq);
+ void *, const struct thermal_zone_device_ops *, int, int);
void thermal_zone_device_unregister(struct thermal_zone_device *);
int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
--
1.8.0.rc1
--
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