aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/omap-thermal
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/omap-thermal')
-rw-r--r--drivers/staging/omap-thermal/omap-bandgap.c67
-rw-r--r--drivers/staging/omap-thermal/omap-bandgap.h9
-rw-r--r--drivers/staging/omap-thermal/omap-thermal-common.c69
3 files changed, 35 insertions, 110 deletions
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 368a2e19b2d4..8346e3450f83 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -38,6 +38,7 @@
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/of_irq.h>
+#include <linux/io.h>
#include "omap-bandgap.h"
@@ -112,6 +113,11 @@ static irqreturn_t talert_irq_handler(int irq, void *data)
omap_bandgap_writel(bg_ptr, ctrl, tsr->bgap_mask_ctrl);
+ dev_dbg(bg_ptr->dev,
+ "%s: IRQ from %s sensor: hotevent %d coldevent %d\n",
+ __func__, bg_ptr->conf->sensors[i].domain,
+ t_hot, t_cold);
+
/* read temperature */
temp = omap_bandgap_readl(bg_ptr, tsr->temp_sensor_ctrl);
temp &= tsr->bgap_dtemp_mask;
@@ -843,7 +849,7 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev)
}
static
-int __devinit omap_bandgap_probe(struct platform_device *pdev)
+int omap_bandgap_probe(struct platform_device *pdev)
{
struct omap_bandgap *bg_ptr;
int clk_rate, ret = 0, i;
@@ -992,7 +998,7 @@ free_irqs:
}
static
-int __devexit omap_bandgap_remove(struct platform_device *pdev)
+int omap_bandgap_remove(struct platform_device *pdev)
{
struct omap_bandgap *bg_ptr = platform_get_drvdata(pdev);
int i;
@@ -1059,7 +1065,6 @@ static int omap_bandgap_save_ctxt(struct omap_bandgap *bg_ptr)
static int omap_bandgap_restore_ctxt(struct omap_bandgap *bg_ptr)
{
int i;
- u32 temp = 0;
for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
struct temp_sensor_registers *tsr;
@@ -1072,41 +1077,27 @@ static int omap_bandgap_restore_ctxt(struct omap_bandgap *bg_ptr)
if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
val = omap_bandgap_readl(bg_ptr, tsr->bgap_counter);
- if (val == 0) {
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
- omap_bandgap_writel(bg_ptr,
- rval->tshut_threshold,
- tsr->tshut_threshold);
- /* Force immediate temperature measurement and update
- * of the DTEMP field
- */
- omap_bandgap_force_single_read(bg_ptr, i);
-
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- omap_bandgap_writel(bg_ptr, rval->bg_counter,
- tsr->bgap_counter);
- if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
- omap_bandgap_writel(bg_ptr, rval->bg_mode_ctrl,
- tsr->bgap_mode_ctrl);
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
- omap_bandgap_writel(bg_ptr,
- rval->bg_threshold,
- tsr->bgap_threshold);
- omap_bandgap_writel(bg_ptr, rval->bg_ctrl,
- tsr->bgap_mask_ctrl);
- }
- } else {
- temp = omap_bandgap_readl(bg_ptr,
- tsr->temp_sensor_ctrl);
- temp &= (tsr->bgap_dtemp_mask);
- omap_bandgap_force_single_read(bg_ptr, i);
- if (temp == 0 && OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
- temp = omap_bandgap_readl(bg_ptr,
- tsr->bgap_mask_ctrl);
- temp |= 1 << __ffs(tsr->mode_ctrl_mask);
- omap_bandgap_writel(bg_ptr, temp,
- tsr->bgap_mask_ctrl);
- }
+ if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
+ omap_bandgap_writel(bg_ptr,
+ rval->tshut_threshold,
+ tsr->tshut_threshold);
+ /* Force immediate temperature measurement and update
+ * of the DTEMP field
+ */
+ omap_bandgap_force_single_read(bg_ptr, i);
+
+ if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
+ omap_bandgap_writel(bg_ptr, rval->bg_counter,
+ tsr->bgap_counter);
+ if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
+ omap_bandgap_writel(bg_ptr, rval->bg_mode_ctrl,
+ tsr->bgap_mode_ctrl);
+ if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
+ omap_bandgap_writel(bg_ptr,
+ rval->bg_threshold,
+ tsr->bgap_threshold);
+ omap_bandgap_writel(bg_ptr, rval->bg_ctrl,
+ tsr->bgap_mask_ctrl);
}
}
diff --git a/drivers/staging/omap-thermal/omap-bandgap.h b/drivers/staging/omap-thermal/omap-bandgap.h
index 78aed7535f47..2bb14bd7c6d9 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.h
+++ b/drivers/staging/omap-thermal/omap-bandgap.h
@@ -336,14 +336,6 @@ struct temp_sensor_regval {
};
/**
- * struct thermal_cooling_conf - description on how to cool a thermal zone
- * @freq_clip_count: size of freq_data
- */
-struct thermal_cooling_conf {
- int freq_clip_count;
-};
-
-/**
* struct omap_temp_sensor - bandgap temperature sensor platform data
* @ts_data: pointer to struct with thresholds, limits of temperature sensor
* @registers: pointer to the list of register offsets and bitfields
@@ -365,7 +357,6 @@ struct omap_temp_sensor {
struct temp_sensor_registers *registers;
struct temp_sensor_regval regval;
char *domain;
- struct thermal_cooling_conf cooling_data;
/* for hotspot extrapolation */
const int slope;
const int constant;
diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c b/drivers/staging/omap-thermal/omap-thermal-common.c
index 788f64f2f467..61f1070c6667 100644
--- a/drivers/staging/omap-thermal/omap-thermal-common.c
+++ b/drivers/staging/omap-thermal/omap-thermal-common.c
@@ -29,6 +29,7 @@
#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"
@@ -112,7 +113,7 @@ static int omap_thermal_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
struct omap_thermal_data *data = thermal->devdata;
- int max, id;
+ int id;
if (IS_ERR_OR_NULL(data))
return -ENODEV;
@@ -122,7 +123,6 @@ static int omap_thermal_bind(struct thermal_zone_device *thermal,
return 0;
id = data->sensor_id;
- max = data->bg_ptr->conf->sensors[id].cooling_data.freq_clip_count;
/* TODO: bind with min and max states */
/* Simple thing, two trips, one passive another critical */
@@ -256,12 +256,12 @@ static struct omap_thermal_data
int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id,
char *domain)
{
- struct omap_thermal_pdata pdata;
+ struct omap_thermal_data *data;
data = omap_bandgap_get_sensor_data(bg_ptr, id);
if (!data)
- data = omap_thermal_build_pdata(bg_ptr, id);
+ data = omap_thermal_build_data(bg_ptr, id);
if (!data)
return -EINVAL;
@@ -304,81 +304,24 @@ int omap_thermal_report_sensor_temperature(struct omap_bandgap *bg_ptr, int id)
return 0;
}
-static int omap_thermal_build_cpufreq_clip(struct omap_bandgap *bg_ptr,
- struct freq_clip_table **tab_ptr,
- int *tab_size)
-{
- struct cpufreq_frequency_table *freq_table;
- struct freq_clip_table *tab;
- int i, count = 0;
-
- freq_table = cpufreq_frequency_get_table(0);
- if (IS_ERR_OR_NULL(freq_table)) {
- dev_err(bg_ptr->dev,
- "%s: failed to get cpufreq table (%p)\n",
- __func__, freq_table);
- return -EINVAL;
- }
-
- for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
- unsigned int freq = freq_table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
- count++;
- }
-
- tab = devm_kzalloc(bg_ptr->dev, sizeof(*tab) * count, GFP_KERNEL);
- if (!tab) {
- dev_err(bg_ptr->dev,
- "%s: no memory available\n", __func__);
- return -ENOMEM;
- }
-
- for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
- unsigned int freq = freq_table[i].frequency;
-
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
-
- tab[count - i - 1].freq_clip_max = freq;
- tab[count - i - 1].temp_level = OMAP_TRIP_HOT;
- tab[count - i - 1].mask_val = cpumask_of(0);
- }
-
- *tab_ptr = tab;
- *tab_size = count;
-
- return 0;
-}
-
int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id)
{
struct omap_thermal_data *data;
- struct freq_clip_table *tab_ptr;
- int tab_size, ret;
data = omap_bandgap_get_sensor_data(bg_ptr, id);
if (!data)
- data = omap_thermal_build_pdata(bg_ptr, id);
+ data = omap_thermal_build_data(bg_ptr, id);
if (!data)
return -EINVAL;
- ret = omap_thermal_build_cpufreq_clip(bg_ptr, &tab_ptr, &tab_size);
- if (ret < 0) {
- dev_err(bg_ptr->dev,
- "%s: failed to build cpufreq clip table\n", __func__);
- return ret;
- }
-
/* Register cooling device */
- data->cool_dev = cpufreq_cooling_register(tab_ptr, tab_size);
+ 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);
}
- bg_ptr->conf->sensors[id].cooling_data.freq_clip_count = tab_size;
omap_bandgap_set_sensor_data(bg_ptr, id, data);
return 0;