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-rw-r--r--drivers/thermal/samsung/exynos_thermal_common.c122
-rw-r--r--drivers/thermal/samsung/exynos_tmu.c7
-rw-r--r--drivers/thermal/samsung/exynos_tmu.h5
-rw-r--r--drivers/thermal/samsung/exynos_tmu_data.c42
4 files changed, 73 insertions, 103 deletions
diff --git a/drivers/thermal/samsung/exynos_thermal_common.c b/drivers/thermal/samsung/exynos_thermal_common.c
index 6dc3815cc73f..00aa68862a52 100644
--- a/drivers/thermal/samsung/exynos_thermal_common.c
+++ b/drivers/thermal/samsung/exynos_thermal_common.c
@@ -133,47 +133,62 @@ static int exynos_get_crit_temp(struct thermal_zone_device *thermal,
static int exynos_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
- int ret = 0, i, tab_size, level;
- struct freq_clip_table *tab_ptr, *clip_data;
struct exynos_thermal_zone *th_zone = thermal->devdata;
struct thermal_sensor_conf *data = th_zone->sensor_conf;
+ struct device_node *child, *gchild, *np;
+ struct of_phandle_args cooling_spec;
+ unsigned long max, state = 0;
+ int ret = 0, i = 0;
- tab_ptr = (struct freq_clip_table *)data->cooling_data.freq_data;
- tab_size = data->cooling_data.freq_clip_count;
-
- if (tab_ptr == NULL || tab_size == 0)
+ /*
+ * Below code is necessary to skip binding when cpufreq's
+ * frequency table is not yet initialized.
+ */
+ cdev->ops->get_max_state(cdev, &state);
+ if (!state && !th_zone->cool_dev_size) {
+ th_zone->cool_dev_size = 1;
+ th_zone->cool_dev[0] = cdev;
+ th_zone->bind = false;
return 0;
+ }
- /* find the cooling device registered*/
- for (i = 0; i < th_zone->cool_dev_size; i++)
- if (cdev == th_zone->cool_dev[i])
- break;
+ np = of_find_node_by_path("/thermal-zones/cpu-thermal");
+ if (!np) {
+ pr_err("failed to find thmerla-zones/cpu-thermal node\n");
+ return -ENOENT;
+ }
- /* No matching cooling device */
- if (i == th_zone->cool_dev_size)
- return 0;
+ child = of_get_child_by_name(np, "cooling-maps");
- /* Bind the thermal zone to the cpufreq cooling device */
- for (i = 0; i < tab_size; i++) {
- clip_data = (struct freq_clip_table *)&(tab_ptr[i]);
- level = cpufreq_cooling_get_level(0, clip_data->freq_clip_max);
- if (level == THERMAL_CSTATE_INVALID)
- return 0;
- switch (GET_ZONE(i)) {
- case MONITOR_ZONE:
- case WARN_ZONE:
- if (thermal_zone_bind_cooling_device(thermal, i, cdev,
- level, 0)) {
- dev_err(data->dev,
- "error unbinding cdev inst=%d\n", i);
- ret = -EINVAL;
- }
- th_zone->bind = true;
- break;
- default:
+ for_each_child_of_node(child, gchild) {
+ ret = of_parse_phandle_with_args(gchild, "cooling-device",
+ "#cooling-cells",
+ 0, &cooling_spec);
+ if (ret < 0) {
+ pr_err("missing cooling_device property\n");
+ goto end;
+ }
+
+ if (cooling_spec.args_count < 2) {
ret = -EINVAL;
+ goto end;
}
+
+ max = cooling_spec.args[0];
+ if (thermal_zone_bind_cooling_device(thermal, i, cdev,
+ max, 0)) {
+ dev_err(data->dev,
+ "thermal error unbinding cdev inst=%d\n", i);
+
+ ret = -EINVAL;
+ goto end;
+ }
+ i++;
}
+ th_zone->bind = true;
+end:
+ of_node_put(child);
+ of_node_put(np);
return ret;
}
@@ -182,16 +197,12 @@ static int exynos_bind(struct thermal_zone_device *thermal,
static int exynos_unbind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
- int ret = 0, i, tab_size;
+ int ret = 0, i;
struct exynos_thermal_zone *th_zone = thermal->devdata;
struct thermal_sensor_conf *data = th_zone->sensor_conf;
+ struct device_node *child, *gchild, *np;
- if (th_zone->bind == false)
- return 0;
-
- tab_size = data->cooling_data.freq_clip_count;
-
- if (tab_size == 0)
+ if (th_zone->bind == false || !th_zone->cool_dev_size)
return 0;
/* find the cooling device registered*/
@@ -203,23 +214,30 @@ static int exynos_unbind(struct thermal_zone_device *thermal,
if (i == th_zone->cool_dev_size)
return 0;
- /* Bind the thermal zone to the cpufreq cooling device */
- for (i = 0; i < tab_size; i++) {
- switch (GET_ZONE(i)) {
- case MONITOR_ZONE:
- case WARN_ZONE:
- if (thermal_zone_unbind_cooling_device(thermal, i,
- cdev)) {
- dev_err(data->dev,
- "error unbinding cdev inst=%d\n", i);
- ret = -EINVAL;
- }
- th_zone->bind = false;
- break;
- default:
+ np = of_find_node_by_path("/thermal-zones/cpu-thermal");
+ if (!np) {
+ pr_err("failed to find thmerla-zones/cpu-thermal node\n");
+ return -ENOENT;
+ }
+
+ child = of_get_child_by_name(np, "cooling-maps");
+
+ i = 0;
+ for_each_child_of_node(child, gchild) {
+ if (thermal_zone_unbind_cooling_device(thermal, i,
+ cdev)) {
+ dev_err(data->dev,
+ "error unbinding cdev inst=%d\n", i);
ret = -EINVAL;
+ goto end;
}
+ i++;
}
+ th_zone->bind = false;
+end:
+ of_node_put(child);
+ of_node_put(np);
+
return ret;
}
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 5000727c8c2b..ae30f6af05e0 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -916,13 +916,6 @@ static int exynos_tmu_probe(struct platform_device *pdev)
sensor_conf->trip_data.trigger_falling = pdata->threshold_falling;
- sensor_conf->cooling_data.freq_clip_count = pdata->freq_tab_count;
- for (i = 0; i < pdata->freq_tab_count; i++) {
- sensor_conf->cooling_data.freq_data[i].freq_clip_max =
- pdata->freq_tab[i].freq_clip_max;
- sensor_conf->cooling_data.freq_data[i].temp_level =
- pdata->freq_tab[i].temp_level;
- }
sensor_conf->dev = &pdev->dev;
/* Register the sensor with thermal management interface */
ret = exynos_register_thermal(sensor_conf);
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 7f880d2e53f5..627dec92ec1b 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -83,9 +83,6 @@ enum soc_type {
* @second_point_trim: temp value of the second point trimming
* @default_temp_offset: default temperature offset in case of no trimming
* @cal_type: calibration type for temperature
- * @freq_clip_table: Table representing frequency reduction percentage.
- * @freq_tab_count: Count of the above table as frequency reduction may
- * applicable to only some of the trigger levels.
*
* This structure is required for configuration of exynos_tmu driver.
*/
@@ -111,8 +108,6 @@ struct exynos_tmu_platform_data {
enum soc_type type;
u32 cal_type;
u32 cal_mode;
- struct freq_clip_table freq_tab[4];
- unsigned int freq_tab_count;
};
/**
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index b23910069f68..a993f3d33f9b 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -47,15 +47,6 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
.first_point_trim = 25,
.second_point_trim = 85,
.default_temp_offset = 50,
- .freq_tab[0] = {
- .freq_clip_max = 800 * 1000,
- .temp_level = 85,
- },
- .freq_tab[1] = {
- .freq_clip_max = 200 * 1000,
- .temp_level = 100,
- },
- .freq_tab_count = 2,
.type = SOC_ARCH_EXYNOS4210,
},
},
@@ -87,16 +78,7 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
.max_efuse_value = 100, \
.first_point_trim = 25, \
.second_point_trim = 85, \
- .default_temp_offset = 50, \
- .freq_tab[0] = { \
- .freq_clip_max = 800 * 1000, \
- .temp_level = 70, \
- }, \
- .freq_tab[1] = { \
- .freq_clip_max = 400 * 1000, \
- .temp_level = 95, \
- }, \
- .freq_tab_count = 2
+ .default_temp_offset = 50
struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
.tmu_data = {
@@ -133,16 +115,7 @@ struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
.max_efuse_value = 100, \
.first_point_trim = 25, \
.second_point_trim = 85, \
- .default_temp_offset = 50, \
- .freq_tab[0] = { \
- .freq_clip_max = 1400 * 1000, \
- .temp_level = 70, \
- }, \
- .freq_tab[1] = { \
- .freq_clip_max = 400 * 1000, \
- .temp_level = 95, \
- }, \
- .freq_tab_count = 2
+ .default_temp_offset = 50
struct exynos_tmu_init_data const exynos4412_default_tmu_data = {
.tmu_data = {
@@ -189,16 +162,7 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
.max_efuse_value = 100, \
.first_point_trim = 25, \
.second_point_trim = 85, \
- .default_temp_offset = 50, \
- .freq_tab[0] = { \
- .freq_clip_max = 800 * 1000, \
- .temp_level = 85, \
- }, \
- .freq_tab[1] = { \
- .freq_clip_max = 200 * 1000, \
- .temp_level = 103, \
- }, \
- .freq_tab_count = 2, \
+ .default_temp_offset = 50,
#define EXYNOS5260_TMU_DATA \
__EXYNOS5260_TMU_DATA \
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