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Commit acebf7ee authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Zhang Rui
Browse files

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: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 1c55be02

drivers/thermal/int340x_thermal/int3402_thermal.c

+33 −0
Original line number Diff line number Diff line
@@ -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;