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Commit 317d9dda authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Zhang Rui
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Thermal/int340x: LPAT conversion for temperature 



When LPAT table is present, we need to convert raw temperature to
real temp using LPAT.

Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent ac586e2d

drivers/thermal/int340x_thermal/int340x_thermal_zone.c

+17 −3
Original line number Diff line number Diff line
@@ -33,6 +33,15 @@ static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone, 
	if (ACPI_FAILURE(status))

		return -EIO;



	if (d->lpat_table) {

		int conv_temp;



		conv_temp = acpi_lpat_raw_to_temp(d->lpat_table, (int)tmp);

		if (conv_temp < 0)

			return conv_temp;



		*temp = (unsigned long)conv_temp * 10;

	} else

		/* _TMP returns the temperature in tenths of degrees Kelvin */

		*temp = DECI_KELVIN_TO_MILLICELSIUS(tmp);
@@ -227,6 +236,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev, 
		int34x_thermal_zone->act_trips[i].id = trip_cnt++;

		int34x_thermal_zone->act_trips[i].valid = true;

	}

	int34x_thermal_zone->lpat_table = acpi_lpat_get_conversion_table(

								adev->handle);



	int34x_thermal_zone->zone = thermal_zone_device_register(

						acpi_device_bid(adev),
@@ -237,11 +248,13 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev, 
						0, 0);

	if (IS_ERR(int34x_thermal_zone->zone)) {

		ret = PTR_ERR(int34x_thermal_zone->zone);

		goto free_mem;

		goto free_lpat;

	}



	return int34x_thermal_zone;



free_lpat:

	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);

free_mem:

	kfree(int34x_thermal_zone);

	return ERR_PTR(ret);
@@ -252,6 +265,7 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone 
				 *int34x_thermal_zone)

{

	thermal_zone_device_unregister(int34x_thermal_zone->zone);

	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);

	kfree(int34x_thermal_zone);

}

EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);

drivers/thermal/int340x_thermal/int340x_thermal_zone.h

+3 −0
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 
#ifndef __INT340X_THERMAL_ZONE_H__

#define __INT340X_THERMAL_ZONE_H__



#include <acpi/acpi_lpat.h>



#define INT340X_THERMAL_MAX_ACT_TRIP_COUNT	10



struct active_trip {
@@ -38,6 +40,7 @@ struct int34x_thermal_zone { 
	struct thermal_zone_device *zone;

	struct thermal_zone_device_ops *override_ops;

	void *priv_data;

	struct acpi_lpat_conversion_table *lpat_table;

};



struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *,