Thermal/int340x/int3403: Use int340x thermal API
Using APIs from int340x thermal zone module to add and remove thermal zones. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>hifive-unleashed-5.1
Srinivas Pandruvada
Zhang Rui
parent
820cdeba40
commit
593df40475
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@ -19,6 +19,7 @@
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#include <linux/acpi.h>
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#include <linux/thermal.h>
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#include <linux/platform_device.h>
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#include "int340x_thermal_zone.h"
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#define INT3403_TYPE_SENSOR 0x03
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#define INT3403_TYPE_CHARGER 0x0B
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@ -26,18 +27,9 @@
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#define INT3403_PERF_CHANGED_EVENT 0x80
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#define INT3403_THERMAL_EVENT 0x90
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#define DECI_KELVIN_TO_MILLI_CELSIUS(t, off) (((t) - (off)) * 100)
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#define KELVIN_OFFSET 2732
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#define MILLI_CELSIUS_TO_DECI_KELVIN(t, off) (((t) / 100) + (off))
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/* Preserved structure for future expandbility */
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struct int3403_sensor {
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struct thermal_zone_device *tzone;
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unsigned long *thresholds;
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unsigned long crit_temp;
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int crit_trip_id;
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unsigned long psv_temp;
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int psv_trip_id;
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struct int34x_thermal_zone *int340x_zone;
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};
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struct int3403_performance_state {
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@ -63,126 +55,6 @@ struct int3403_priv {
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void *priv;
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};
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static int sys_get_curr_temp(struct thermal_zone_device *tzone,
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unsigned long *temp)
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{
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struct int3403_priv *priv = tzone->devdata;
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struct acpi_device *device = priv->adev;
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unsigned long long tmp;
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acpi_status status;
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status = acpi_evaluate_integer(device->handle, "_TMP", NULL, &tmp);
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if (ACPI_FAILURE(status))
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return -EIO;
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*temp = DECI_KELVIN_TO_MILLI_CELSIUS(tmp, KELVIN_OFFSET);
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return 0;
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}
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static int sys_get_trip_hyst(struct thermal_zone_device *tzone,
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int trip, unsigned long *temp)
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{
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struct int3403_priv *priv = tzone->devdata;
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struct acpi_device *device = priv->adev;
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unsigned long long hyst;
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acpi_status status;
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status = acpi_evaluate_integer(device->handle, "GTSH", NULL, &hyst);
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if (ACPI_FAILURE(status))
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return -EIO;
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/*
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* Thermal hysteresis represents a temperature difference.
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* Kelvin and Celsius have same degree size. So the
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* conversion here between tenths of degree Kelvin unit
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* and Milli-Celsius unit is just to multiply 100.
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*/
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*temp = hyst * 100;
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return 0;
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}
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static int sys_get_trip_temp(struct thermal_zone_device *tzone,
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int trip, unsigned long *temp)
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{
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struct int3403_priv *priv = tzone->devdata;
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struct int3403_sensor *obj = priv->priv;
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if (priv->type != INT3403_TYPE_SENSOR || !obj)
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return -EINVAL;
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if (trip == obj->crit_trip_id)
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*temp = obj->crit_temp;
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else if (trip == obj->psv_trip_id)
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*temp = obj->psv_temp;
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else {
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/*
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* get_trip_temp is a mandatory callback but
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* PATx method doesn't return any value, so return
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* cached value, which was last set from user space
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*/
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*temp = obj->thresholds[trip];
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}
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return 0;
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}
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static int sys_get_trip_type(struct thermal_zone_device *thermal,
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int trip, enum thermal_trip_type *type)
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{
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struct int3403_priv *priv = thermal->devdata;
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struct int3403_sensor *obj = priv->priv;
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/* Mandatory callback, may not mean much here */
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if (trip == obj->crit_trip_id)
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*type = THERMAL_TRIP_CRITICAL;
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else
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*type = THERMAL_TRIP_PASSIVE;
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return 0;
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}
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int sys_set_trip_temp(struct thermal_zone_device *tzone, int trip,
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unsigned long temp)
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{
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struct int3403_priv *priv = tzone->devdata;
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struct acpi_device *device = priv->adev;
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struct int3403_sensor *obj = priv->priv;
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acpi_status status;
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char name[10];
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int ret = 0;
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snprintf(name, sizeof(name), "PAT%d", trip);
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if (acpi_has_method(device->handle, name)) {
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status = acpi_execute_simple_method(device->handle, name,
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MILLI_CELSIUS_TO_DECI_KELVIN(temp,
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KELVIN_OFFSET));
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if (ACPI_FAILURE(status))
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ret = -EIO;
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else
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obj->thresholds[trip] = temp;
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} else {
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ret = -EIO;
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dev_err(&device->dev, "sys_set_trip_temp: method not found\n");
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}
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return ret;
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}
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static struct thermal_zone_device_ops tzone_ops = {
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.get_temp = sys_get_curr_temp,
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.get_trip_temp = sys_get_trip_temp,
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.get_trip_type = sys_get_trip_type,
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.set_trip_temp = sys_set_trip_temp,
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.get_trip_hyst = sys_get_trip_hyst,
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};
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static struct thermal_zone_params int3403_thermal_params = {
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.governor_name = "user_space",
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.no_hwmon = true,
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};
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static void int3403_notify(acpi_handle handle,
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u32 event, void *data)
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{
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@ -200,7 +72,7 @@ static void int3403_notify(acpi_handle handle,
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case INT3403_PERF_CHANGED_EVENT:
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break;
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case INT3403_THERMAL_EVENT:
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thermal_zone_device_update(obj->tzone);
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int340x_thermal_zone_device_update(obj->int340x_zone);
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break;
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default:
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dev_err(&priv->pdev->dev, "Unsupported event [0x%x]\n", event);
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@ -208,41 +80,10 @@ static void int3403_notify(acpi_handle handle,
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}
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}
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static int sys_get_trip_crt(struct acpi_device *device, unsigned long *temp)
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{
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unsigned long long crt;
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acpi_status status;
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status = acpi_evaluate_integer(device->handle, "_CRT", NULL, &crt);
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if (ACPI_FAILURE(status))
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return -EIO;
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*temp = DECI_KELVIN_TO_MILLI_CELSIUS(crt, KELVIN_OFFSET);
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return 0;
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}
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static int sys_get_trip_psv(struct acpi_device *device, unsigned long *temp)
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{
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unsigned long long psv;
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acpi_status status;
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status = acpi_evaluate_integer(device->handle, "_PSV", NULL, &psv);
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if (ACPI_FAILURE(status))
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return -EIO;
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*temp = DECI_KELVIN_TO_MILLI_CELSIUS(psv, KELVIN_OFFSET);
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return 0;
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}
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static int int3403_sensor_add(struct int3403_priv *priv)
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{
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int result = 0;
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acpi_status status;
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struct int3403_sensor *obj;
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unsigned long long trip_cnt;
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int trip_mask = 0;
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obj = devm_kzalloc(&priv->pdev->dev, sizeof(*obj), GFP_KERNEL);
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if (!obj)
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@ -250,39 +91,9 @@ static int int3403_sensor_add(struct int3403_priv *priv)
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priv->priv = obj;
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status = acpi_evaluate_integer(priv->adev->handle, "PATC", NULL,
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&trip_cnt);
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if (ACPI_FAILURE(status))
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trip_cnt = 0;
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if (trip_cnt) {
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/* We have to cache, thresholds can't be readback */
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obj->thresholds = devm_kzalloc(&priv->pdev->dev,
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sizeof(*obj->thresholds) * trip_cnt,
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GFP_KERNEL);
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if (!obj->thresholds) {
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result = -ENOMEM;
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goto err_free_obj;
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}
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trip_mask = BIT(trip_cnt) - 1;
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}
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obj->psv_trip_id = -1;
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if (!sys_get_trip_psv(priv->adev, &obj->psv_temp))
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obj->psv_trip_id = trip_cnt++;
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obj->crit_trip_id = -1;
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if (!sys_get_trip_crt(priv->adev, &obj->crit_temp))
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obj->crit_trip_id = trip_cnt++;
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obj->tzone = thermal_zone_device_register(acpi_device_bid(priv->adev),
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trip_cnt, trip_mask, priv, &tzone_ops,
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&int3403_thermal_params, 0, 0);
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if (IS_ERR(obj->tzone)) {
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result = PTR_ERR(obj->tzone);
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obj->tzone = NULL;
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goto err_free_obj;
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}
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obj->int340x_zone = int340x_thermal_zone_add(priv->adev, NULL);
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if (IS_ERR(obj->int340x_zone))
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return PTR_ERR(obj->int340x_zone);
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result = acpi_install_notify_handler(priv->adev->handle,
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ACPI_DEVICE_NOTIFY, int3403_notify,
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@ -293,7 +104,7 @@ static int int3403_sensor_add(struct int3403_priv *priv)
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return 0;
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err_free_obj:
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thermal_zone_device_unregister(obj->tzone);
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int340x_thermal_zone_remove(obj->int340x_zone);
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return result;
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}
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@ -303,7 +114,8 @@ static int int3403_sensor_remove(struct int3403_priv *priv)
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acpi_remove_notify_handler(priv->adev->handle,
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ACPI_DEVICE_NOTIFY, int3403_notify);
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thermal_zone_device_unregister(obj->tzone);
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int340x_thermal_zone_remove(obj->int340x_zone);
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return 0;
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}
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