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-rw-r--r--drivers/staging/omap-thermal/omap-thermal-common.c338
1 files changed, 0 insertions, 338 deletions
diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c b/drivers/staging/omap-thermal/omap-thermal-common.c
deleted file mode 100644
index 79a55aaae5a..00000000000
--- a/drivers/staging/omap-thermal/omap-thermal-common.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * OMAP thermal driver interface
- *
- * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
- * Contact:
- * Eduardo Valentin <eduardo.valentin@ti.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/gfp.h>
-#include <linux/kernel.h>
-#include <linux/workqueue.h>
-#include <linux/thermal.h>
-#include <linux/cpufreq.h>
-#include <linux/cpumask.h>
-#include <linux/cpu_cooling.h>
-
-#include "omap-thermal.h"
-#include "omap-bandgap.h"
-
-/* common data structures */
-struct omap_thermal_data {
- struct thermal_zone_device *omap_thermal;
- struct thermal_cooling_device *cool_dev;
- struct omap_bandgap *bg_ptr;
- enum thermal_device_mode mode;
- struct work_struct thermal_wq;
- int sensor_id;
-};
-
-static void omap_thermal_work(struct work_struct *work)
-{
- struct omap_thermal_data *data = container_of(work,
- struct omap_thermal_data, thermal_wq);
-
- thermal_zone_device_update(data->omap_thermal);
-
- dev_dbg(&data->omap_thermal->device, "updated thermal zone %s\n",
- data->omap_thermal->type);
-}
-
-/**
- * omap_thermal_hotspot_temperature - returns sensor extrapolated temperature
- * @t: omap sensor temperature
- * @s: omap sensor slope value
- * @c: omap sensor const value
- */
-static inline int omap_thermal_hotspot_temperature(int t, int s, int c)
-{
- int delta = t * s / 1000 + c;
-
- if (delta < 0)
- delta = 0;
-
- return t + delta;
-}
-
-/* thermal zone ops */
-/* Get temperature callback function for thermal zone*/
-static inline int omap_thermal_get_temp(struct thermal_zone_device *thermal,
- unsigned long *temp)
-{
- struct omap_thermal_data *data = thermal->devdata;
- struct omap_bandgap *bg_ptr;
- struct omap_temp_sensor *s;
- int ret, tmp, pcb_temp, slope, constant;
-
- if (!data)
- return 0;
-
- bg_ptr = data->bg_ptr;
- s = &bg_ptr->conf->sensors[data->sensor_id];
-
- ret = omap_bandgap_read_temperature(bg_ptr, data->sensor_id, &tmp);
- if (ret)
- return ret;
-
- pcb_temp = 0;
- /* TODO: Introduce pcb temperature lookup */
- /* In case pcb zone is available, use the extrapolation rule with it */
- if (pcb_temp) {
- tmp -= pcb_temp;
- slope = s->slope_pcb;
- constant = s->constant_pcb;
- } else {
- slope = s->slope;
- constant = s->constant;
- }
- *temp = omap_thermal_hotspot_temperature(tmp, slope, constant);
-
- return ret;
-}
-
-/* Bind callback functions for thermal zone */
-static int omap_thermal_bind(struct thermal_zone_device *thermal,
- struct thermal_cooling_device *cdev)
-{
- struct omap_thermal_data *data = thermal->devdata;
- int id;
-
- if (IS_ERR_OR_NULL(data))
- return -ENODEV;
-
- /* check if this is the cooling device we registered */
- if (data->cool_dev != cdev)
- return 0;
-
- id = data->sensor_id;
-
- /* TODO: bind with min and max states */
- /* Simple thing, two trips, one passive another critical */
- return thermal_zone_bind_cooling_device(thermal, 0, cdev,
- THERMAL_NO_LIMIT,
- THERMAL_NO_LIMIT);
-}
-
-/* Unbind callback functions for thermal zone */
-static int omap_thermal_unbind(struct thermal_zone_device *thermal,
- struct thermal_cooling_device *cdev)
-{
- struct omap_thermal_data *data = thermal->devdata;
-
- if (IS_ERR_OR_NULL(data))
- return -ENODEV;
-
- /* check if this is the cooling device we registered */
- if (data->cool_dev != cdev)
- return 0;
-
- /* Simple thing, two trips, one passive another critical */
- return thermal_zone_unbind_cooling_device(thermal, 0, cdev);
-}
-
-/* Get mode callback functions for thermal zone */
-static int omap_thermal_get_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode *mode)
-{
- struct omap_thermal_data *data = thermal->devdata;
-
- if (data)
- *mode = data->mode;
-
- return 0;
-}
-
-/* Set mode callback functions for thermal zone */
-static int omap_thermal_set_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode mode)
-{
- struct omap_thermal_data *data = thermal->devdata;
-
- if (!data->omap_thermal) {
- dev_notice(&thermal->device, "thermal zone not registered\n");
- return 0;
- }
-
- mutex_lock(&data->omap_thermal->lock);
-
- if (mode == THERMAL_DEVICE_ENABLED)
- data->omap_thermal->polling_delay = FAST_TEMP_MONITORING_RATE;
- else
- data->omap_thermal->polling_delay = 0;
-
- mutex_unlock(&data->omap_thermal->lock);
-
- data->mode = mode;
- thermal_zone_device_update(data->omap_thermal);
- dev_dbg(&thermal->device, "thermal polling set for duration=%d msec\n",
- data->omap_thermal->polling_delay);
-
- return 0;
-}
-
-/* Get trip type callback functions for thermal zone */
-static int omap_thermal_get_trip_type(struct thermal_zone_device *thermal,
- int trip, enum thermal_trip_type *type)
-{
- if (!omap_thermal_is_valid_trip(trip))
- return -EINVAL;
-
- if (trip + 1 == OMAP_TRIP_NUMBER)
- *type = THERMAL_TRIP_CRITICAL;
- else
- *type = THERMAL_TRIP_PASSIVE;
-
- return 0;
-}
-
-/* Get trip temperature callback functions for thermal zone */
-static int omap_thermal_get_trip_temp(struct thermal_zone_device *thermal,
- int trip, unsigned long *temp)
-{
- if (!omap_thermal_is_valid_trip(trip))
- return -EINVAL;
-
- *temp = omap_thermal_get_trip_value(trip);
-
- return 0;
-}
-
-/* Get critical temperature callback functions for thermal zone */
-static int omap_thermal_get_crit_temp(struct thermal_zone_device *thermal,
- unsigned long *temp)
-{
- /* shutdown zone */
- return omap_thermal_get_trip_temp(thermal, OMAP_TRIP_NUMBER - 1, temp);
-}
-
-static struct thermal_zone_device_ops omap_thermal_ops = {
- .get_temp = omap_thermal_get_temp,
- /* TODO: add .get_trend */
- .bind = omap_thermal_bind,
- .unbind = omap_thermal_unbind,
- .get_mode = omap_thermal_get_mode,
- .set_mode = omap_thermal_set_mode,
- .get_trip_type = omap_thermal_get_trip_type,
- .get_trip_temp = omap_thermal_get_trip_temp,
- .get_crit_temp = omap_thermal_get_crit_temp,
-};
-
-static struct omap_thermal_data
-*omap_thermal_build_data(struct omap_bandgap *bg_ptr, int id)
-{
- struct omap_thermal_data *data;
-
- data = devm_kzalloc(bg_ptr->dev, sizeof(*data), GFP_KERNEL);
- if (!data) {
- dev_err(bg_ptr->dev, "kzalloc fail\n");
- return NULL;
- }
- data->sensor_id = id;
- data->bg_ptr = bg_ptr;
- data->mode = THERMAL_DEVICE_ENABLED;
- INIT_WORK(&data->thermal_wq, omap_thermal_work);
-
- return data;
-}
-
-int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id,
- char *domain)
-{
- struct omap_thermal_data *data;
-
- data = omap_bandgap_get_sensor_data(bg_ptr, id);
-
- if (IS_ERR(data))
- data = omap_thermal_build_data(bg_ptr, id);
-
- if (!data)
- return -EINVAL;
-
- /* TODO: remove TC1 TC2 */
- /* Create thermal zone */
- data->omap_thermal = thermal_zone_device_register(domain,
- OMAP_TRIP_NUMBER, 0, data, &omap_thermal_ops,
- NULL, FAST_TEMP_MONITORING_RATE,
- FAST_TEMP_MONITORING_RATE);
- if (IS_ERR_OR_NULL(data->omap_thermal)) {
- dev_err(bg_ptr->dev, "thermal zone device is NULL\n");
- return PTR_ERR(data->omap_thermal);
- }
- data->omap_thermal->polling_delay = FAST_TEMP_MONITORING_RATE;
- omap_bandgap_set_sensor_data(bg_ptr, id, data);
-
- return 0;
-}
-
-int omap_thermal_remove_sensor(struct omap_bandgap *bg_ptr, int id)
-{
- struct omap_thermal_data *data;
-
- data = omap_bandgap_get_sensor_data(bg_ptr, id);
-
- thermal_zone_device_unregister(data->omap_thermal);
-
- return 0;
-}
-
-int omap_thermal_report_sensor_temperature(struct omap_bandgap *bg_ptr, int id)
-{
- struct omap_thermal_data *data;
-
- data = omap_bandgap_get_sensor_data(bg_ptr, id);
-
- schedule_work(&data->thermal_wq);
-
- return 0;
-}
-
-int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id)
-{
- struct omap_thermal_data *data;
-
- data = omap_bandgap_get_sensor_data(bg_ptr, id);
- if (IS_ERR(data))
- data = omap_thermal_build_data(bg_ptr, id);
-
- if (!data)
- return -EINVAL;
-
- /* Register cooling device */
- data->cool_dev = cpufreq_cooling_register(cpu_present_mask);
- if (IS_ERR_OR_NULL(data->cool_dev)) {
- dev_err(bg_ptr->dev,
- "Failed to register cpufreq cooling device\n");
- return PTR_ERR(data->cool_dev);
- }
- omap_bandgap_set_sensor_data(bg_ptr, id, data);
-
- return 0;
-}
-
-int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bg_ptr, int id)
-{
- struct omap_thermal_data *data;
-
- data = omap_bandgap_get_sensor_data(bg_ptr, id);
- cpufreq_cooling_unregister(data->cool_dev);
-
- return 0;
-}
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