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Thermal/int340x/int3402: Provide notification support

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This driver supports programmable trips, but didn't register
notification handler to receive threshold violation notification.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Srinivas Pandruvada 2014-12-23 15:29:57 -08:00 committed by Zhang Rui
parent 1c55be0208
commit acebf7eea4
1 changed files with 33 additions and 0 deletions
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33
drivers/thermal/int340x_thermal/int3402_thermal.c
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@ -16,15 +16,37 @@
#include <linux/thermal.h>
#include "int340x_thermal_zone.h"
#define INT3402_PERF_CHANGED_EVENT 0x80
#define INT3402_THERMAL_EVENT 0x90
struct int3402_thermal_data {
acpi_handle *handle;
struct int34x_thermal_zone *int340x_zone;
};
static void int3402_notify(acpi_handle handle, u32 event, void *data)
{
struct int3402_thermal_data *priv = data;
if (!priv)
return;
switch (event) {
case INT3402_PERF_CHANGED_EVENT:
break;
case INT3402_THERMAL_EVENT:
int340x_thermal_zone_device_update(priv->int340x_zone);
break;
default:
break;
}
}
static int int3402_thermal_probe(struct platform_device *pdev)
{
struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
struct int3402_thermal_data *d;
int ret;
if (!acpi_has_method(adev->handle, "_TMP"))
return -ENODEV;
@ -37,6 +59,15 @@ static int int3402_thermal_probe(struct platform_device *pdev)
if (IS_ERR(d->int340x_zone))
return PTR_ERR(d->int340x_zone);
ret = acpi_install_notify_handler(adev->handle,
ACPI_DEVICE_NOTIFY,
int3402_notify,
d);
if (ret) {
int340x_thermal_zone_remove(d->int340x_zone);
return ret;
}
d->handle = adev->handle;
platform_set_drvdata(pdev, d);
@ -47,6 +78,8 @@ static int int3402_thermal_remove(struct platform_device *pdev)
{
struct int3402_thermal_data *d = platform_get_drvdata(pdev);
acpi_remove_notify_handler(d->handle,
ACPI_DEVICE_NOTIFY, int3402_notify);
int340x_thermal_zone_remove(d->int340x_zone);
return 0;