Thermal/int340x/int3402: Provide notification support
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>
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@ -16,15 +16,37 @@
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#include <linux/thermal.h>
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#include "int340x_thermal_zone.h"
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#define INT3402_PERF_CHANGED_EVENT 0x80
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#define INT3402_THERMAL_EVENT 0x90
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struct int3402_thermal_data {
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acpi_handle *handle;
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struct int34x_thermal_zone *int340x_zone;
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};
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static void int3402_notify(acpi_handle handle, u32 event, void *data)
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{
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struct int3402_thermal_data *priv = data;
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if (!priv)
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return;
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switch (event) {
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case INT3402_PERF_CHANGED_EVENT:
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break;
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case INT3402_THERMAL_EVENT:
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int340x_thermal_zone_device_update(priv->int340x_zone);
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break;
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default:
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break;
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}
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}
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static int int3402_thermal_probe(struct platform_device *pdev)
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{
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struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
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struct int3402_thermal_data *d;
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int ret;
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if (!acpi_has_method(adev->handle, "_TMP"))
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return -ENODEV;
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@ -37,6 +59,15 @@ static int int3402_thermal_probe(struct platform_device *pdev)
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if (IS_ERR(d->int340x_zone))
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return PTR_ERR(d->int340x_zone);
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ret = acpi_install_notify_handler(adev->handle,
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ACPI_DEVICE_NOTIFY,
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int3402_notify,
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d);
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if (ret) {
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int340x_thermal_zone_remove(d->int340x_zone);
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return ret;
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}
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d->handle = adev->handle;
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platform_set_drvdata(pdev, d);
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@ -47,6 +78,8 @@ static int int3402_thermal_remove(struct platform_device *pdev)
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{
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struct int3402_thermal_data *d = platform_get_drvdata(pdev);
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acpi_remove_notify_handler(d->handle,
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ACPI_DEVICE_NOTIFY, int3402_notify);
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int340x_thermal_zone_remove(d->int340x_zone);
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return 0;
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