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: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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@ -33,8 +33,17 @@ static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
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if (ACPI_FAILURE(status))
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return -EIO;
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/* _TMP returns the temperature in tenths of degrees Kelvin */
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*temp = DECI_KELVIN_TO_MILLICELSIUS(tmp);
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if (d->lpat_table) {
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int conv_temp;
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conv_temp = acpi_lpat_raw_to_temp(d->lpat_table, (int)tmp);
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if (conv_temp < 0)
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return conv_temp;
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*temp = (unsigned long)conv_temp * 10;
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} else
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/* _TMP returns the temperature in tenths of degrees Kelvin */
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*temp = DECI_KELVIN_TO_MILLICELSIUS(tmp);
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return 0;
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}
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@ -227,6 +236,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
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int34x_thermal_zone->act_trips[i].id = trip_cnt++;
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int34x_thermal_zone->act_trips[i].valid = true;
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}
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int34x_thermal_zone->lpat_table = acpi_lpat_get_conversion_table(
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adev->handle);
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int34x_thermal_zone->zone = thermal_zone_device_register(
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acpi_device_bid(adev),
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@ -237,11 +248,13 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
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0, 0);
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if (IS_ERR(int34x_thermal_zone->zone)) {
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ret = PTR_ERR(int34x_thermal_zone->zone);
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goto free_mem;
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goto free_lpat;
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}
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return int34x_thermal_zone;
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free_lpat:
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acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
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free_mem:
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kfree(int34x_thermal_zone);
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return ERR_PTR(ret);
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@ -252,6 +265,7 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone
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*int34x_thermal_zone)
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{
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thermal_zone_device_unregister(int34x_thermal_zone->zone);
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acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
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kfree(int34x_thermal_zone);
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}
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EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
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@ -16,6 +16,8 @@
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#ifndef __INT340X_THERMAL_ZONE_H__
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#define __INT340X_THERMAL_ZONE_H__
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#include <acpi/acpi_lpat.h>
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#define INT340X_THERMAL_MAX_ACT_TRIP_COUNT 10
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struct active_trip {
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@ -38,6 +40,7 @@ struct int34x_thermal_zone {
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struct thermal_zone_device *zone;
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struct thermal_zone_device_ops *override_ops;
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void *priv_data;
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struct acpi_lpat_conversion_table *lpat_table;
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};
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struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *,
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