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authorLinus Torvalds <torvalds@linux-foundation.org>2014-07-07 13:23:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-07-07 13:23:13 -0700
commit448bfad8a185876ce8de484a921d49769972cad7 (patch)
tree2dd2648f31b2bf7c127734baae70df82ae5b1d0d /drivers
parent4c2f503aade27ebf12f5733a583d711f99dc5ec1 (diff)
parent4adccf9fc84aaf5e4d18442e163d549e0b603075 (diff)
Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal fixes from Zhang Rui: "Specifics: - update Email address of Thermal subsystem maintainer Eduardo Valentin. - fix a problem that unloading thermal module results in kernel crash because a non-exist device file is removed on thermal unload. - fix a problem that critical trip point is set wrongly on latest i.MX6 SOC and results in system critical shutdown. - a couple of fixes to Tmon tool, of-thermal code and ti thermal driver" * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: tmon: set umask to a reasonable value tmon: Check log file for common secuirty issues tools/thermal: tmon: fix compilation errors when building statically thermal: ti-soc-thermal: ti-bandgap.c: Cleaning up wrong address is checked Thermal: imx: correct critical trip temperature setting thermal: Bind cooling devices with the correct arguments thermal: Add braces around suspect code thermal: hwmon: Make the check for critical temp valid consistent MAINTAINERS: Update Eduardo Valentin's email address
Diffstat (limited to 'drivers')
-rw-r--r--drivers/thermal/imx_thermal.c18
-rw-r--r--drivers/thermal/of-thermal.c7
-rw-r--r--drivers/thermal/thermal_hwmon.c33
-rw-r--r--drivers/thermal/ti-soc-thermal/ti-bandgap.c2
4 files changed, 30 insertions, 30 deletions
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index a99c63152b8d..2c516f2eebed 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -306,7 +306,7 @@ static int imx_get_sensor_data(struct platform_device *pdev)
{
struct imx_thermal_data *data = platform_get_drvdata(pdev);
struct regmap *map;
- int t1, t2, n1, n2;
+ int t1, n1;
int ret;
u32 val;
u64 temp64;
@@ -333,14 +333,10 @@ static int imx_get_sensor_data(struct platform_device *pdev)
/*
* Sensor data layout:
* [31:20] - sensor value @ 25C
- * [19:8] - sensor value of hot
- * [7:0] - hot temperature value
* Use universal formula now and only need sensor value @ 25C
* slope = 0.4297157 - (0.0015976 * 25C fuse)
*/
n1 = val >> 20;
- n2 = (val & 0xfff00) >> 8;
- t2 = val & 0xff;
t1 = 25; /* t1 always 25C */
/*
@@ -366,16 +362,16 @@ static int imx_get_sensor_data(struct platform_device *pdev)
data->c2 = n1 * data->c1 + 1000 * t1;
/*
- * Set the default passive cooling trip point to 20 °C below the
- * maximum die temperature. Can be changed from userspace.
+ * Set the default passive cooling trip point,
+ * can be changed from userspace.
*/
- data->temp_passive = 1000 * (t2 - 20);
+ data->temp_passive = IMX_TEMP_PASSIVE;
/*
- * The maximum die temperature is t2, let's give 5 °C cushion
- * for noise and possible temperature rise between measurements.
+ * The maximum die temperature set to 20 C higher than
+ * IMX_TEMP_PASSIVE.
*/
- data->temp_critical = 1000 * (t2 - 5);
+ data->temp_critical = 1000 * 20 + data->temp_passive;
return 0;
}
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 04b1be7fa018..4b2b999b7611 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -156,8 +156,8 @@ static int of_thermal_bind(struct thermal_zone_device *thermal,
ret = thermal_zone_bind_cooling_device(thermal,
tbp->trip_id, cdev,
- tbp->min,
- tbp->max);
+ tbp->max,
+ tbp->min);
if (ret)
return ret;
}
@@ -712,11 +712,12 @@ thermal_of_build_thermal_zone(struct device_node *np)
}
i = 0;
- for_each_child_of_node(child, gchild)
+ for_each_child_of_node(child, gchild) {
ret = thermal_of_populate_bind_params(gchild, &tz->tbps[i++],
tz->trips, tz->ntrips);
if (ret)
goto free_tbps;
+ }
finish:
of_node_put(child);
diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index fdb07199d9c2..1967bee4f076 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -140,6 +140,12 @@ thermal_hwmon_lookup_temp(const struct thermal_hwmon_device *hwmon,
return NULL;
}
+static bool thermal_zone_crit_temp_valid(struct thermal_zone_device *tz)
+{
+ unsigned long temp;
+ return tz->ops->get_crit_temp && !tz->ops->get_crit_temp(tz, &temp);
+}
+
int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
{
struct thermal_hwmon_device *hwmon;
@@ -189,21 +195,18 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
if (result)
goto free_temp_mem;
- if (tz->ops->get_crit_temp) {
- unsigned long temperature;
- if (!tz->ops->get_crit_temp(tz, &temperature)) {
- snprintf(temp->temp_crit.name,
- sizeof(temp->temp_crit.name),
+ if (thermal_zone_crit_temp_valid(tz)) {
+ snprintf(temp->temp_crit.name,
+ sizeof(temp->temp_crit.name),
"temp%d_crit", hwmon->count);
- temp->temp_crit.attr.attr.name = temp->temp_crit.name;
- temp->temp_crit.attr.attr.mode = 0444;
- temp->temp_crit.attr.show = temp_crit_show;
- sysfs_attr_init(&temp->temp_crit.attr.attr);
- result = device_create_file(hwmon->device,
- &temp->temp_crit.attr);
- if (result)
- goto unregister_input;
- }
+ temp->temp_crit.attr.attr.name = temp->temp_crit.name;
+ temp->temp_crit.attr.attr.mode = 0444;
+ temp->temp_crit.attr.show = temp_crit_show;
+ sysfs_attr_init(&temp->temp_crit.attr.attr);
+ result = device_create_file(hwmon->device,
+ &temp->temp_crit.attr);
+ if (result)
+ goto unregister_input;
}
mutex_lock(&thermal_hwmon_list_lock);
@@ -250,7 +253,7 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
}
device_remove_file(hwmon->device, &temp->temp_input.attr);
- if (tz->ops->get_crit_temp)
+ if (thermal_zone_crit_temp_valid(tz))
device_remove_file(hwmon->device, &temp->temp_crit.attr);
mutex_lock(&thermal_hwmon_list_lock);
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index a1271b55103a..634b6ce0e63a 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1155,7 +1155,7 @@ static struct ti_bandgap *ti_bandgap_build(struct platform_device *pdev)
/* register shadow for context save and restore */
bgp->regval = devm_kzalloc(&pdev->dev, sizeof(*bgp->regval) *
bgp->conf->sensor_count, GFP_KERNEL);
- if (!bgp) {
+ if (!bgp->regval) {
dev_err(&pdev->dev, "Unable to allocate mem for driver ref\n");
return ERR_PTR(-ENOMEM);
}