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authorDaniel Lezcano <daniel.lezcano@linaro.org>2018-09-25 11:03:04 +0200
committerEduardo Valentin <edubezval@gmail.com>2018-10-22 17:45:12 -0700
commit7edc5e406f2637ba1f9c93b1e72e0e37f446304b (patch)
tree859ec85fec748d583d026cc2e0c4cd0ad4a3fe66 /drivers/thermal
parent8c0ffc8f9a76b2007258f146a4ff22ef14e68590 (diff)
downloadlinux-7edc5e406f2637ba1f9c93b1e72e0e37f446304b.tar.bz2
thermal/drivers/hisi: Add multiple sensors support
Change the code as it is dealing with several sensors. For git-bisect compatibility (compilation and booting), assume the DT is not yet changed and we have a single interrupt. Next changes will support multiple interrupt sorted by their name. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/hisi_thermal.c79
1 files changed, 47 insertions, 32 deletions
diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 87b82fb00b08..a5756f6d13e4 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -448,8 +448,8 @@ static const struct thermal_zone_of_device_ops hisi_of_thermal_ops = {
static irqreturn_t hisi_thermal_alarm_irq_thread(int irq, void *dev)
{
- struct hisi_thermal_data *data = dev;
- struct hisi_thermal_sensor *sensor = &data->sensor[0];
+ struct hisi_thermal_sensor *sensor = dev;
+ struct hisi_thermal_data *data = sensor->data;
int temp = 0;
data->ops->irq_handler(sensor);
@@ -457,15 +457,17 @@ static irqreturn_t hisi_thermal_alarm_irq_thread(int irq, void *dev)
hisi_thermal_get_temp(sensor, &temp);
if (temp >= sensor->thres_temp) {
- dev_crit(&data->pdev->dev, "THERMAL ALARM: %d > %d\n",
- temp, sensor->thres_temp);
+ dev_crit(&data->pdev->dev,
+ "sensor <%d> THERMAL ALARM: %d > %d\n",
+ sensor->id, temp, sensor->thres_temp);
- thermal_zone_device_update(data->sensor[0].tzd,
+ thermal_zone_device_update(sensor->tzd,
THERMAL_EVENT_UNSPECIFIED);
} else {
- dev_crit(&data->pdev->dev, "THERMAL ALARM stopped: %d < %d\n",
- temp, sensor->thres_temp);
+ dev_crit(&data->pdev->dev,
+ "sensor <%d> THERMAL ALARM stopped: %d < %d\n",
+ sensor->id, temp, sensor->thres_temp);
}
return IRQ_HANDLED;
@@ -543,7 +545,7 @@ static int hisi_thermal_probe(struct platform_device *pdev)
struct hisi_thermal_data *data;
struct device *dev = &pdev->dev;
struct resource *res;
- int ret;
+ int i, ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -560,37 +562,41 @@ static int hisi_thermal_probe(struct platform_device *pdev)
return PTR_ERR(data->regs);
}
- data->irq = platform_get_irq(pdev, 0);
- if (data->irq < 0)
- return data->irq;
-
ret = data->ops->probe(data);
if (ret)
return ret;
- ret = hisi_thermal_register_sensor(pdev, &data->sensor[0]);
- if (ret) {
- dev_err(dev, "failed to register thermal sensor: %d\n", ret);
- return ret;
- }
+ for (i = 0; i < data->nr_sensors; i++) {
+ struct hisi_thermal_sensor *sensor = &data->sensor[i];
- ret = data->ops->enable_sensor(&data->sensor[0]);
- if (ret) {
- dev_err(dev, "Failed to setup the sensor: %d\n", ret);
- return ret;
- }
+ ret = hisi_thermal_register_sensor(pdev, sensor);
+ if (ret) {
+ dev_err(dev, "failed to register thermal sensor: %d\n",
+ ret);
+ return ret;
+ }
+
+ data->irq = platform_get_irq(pdev, 0);
+ if (data->irq < 0)
+ return data->irq;
- if (data->irq) {
ret = devm_request_threaded_irq(dev, data->irq, NULL,
- hisi_thermal_alarm_irq_thread,
- IRQF_ONESHOT, "hisi_thermal", data);
+ hisi_thermal_alarm_irq_thread,
+ IRQF_ONESHOT, "hisi_thermal",
+ sensor);
if (ret < 0) {
dev_err(dev, "failed to request alarm irq: %d\n", ret);
return ret;
}
- }
- hisi_thermal_toggle_sensor(&data->sensor[0], true);
+ ret = data->ops->enable_sensor(sensor);
+ if (ret) {
+ dev_err(dev, "Failed to setup the sensor: %d\n", ret);
+ return ret;
+ }
+
+ hisi_thermal_toggle_sensor(sensor, true);
+ }
return 0;
}
@@ -598,11 +604,14 @@ static int hisi_thermal_probe(struct platform_device *pdev)
static int hisi_thermal_remove(struct platform_device *pdev)
{
struct hisi_thermal_data *data = platform_get_drvdata(pdev);
- struct hisi_thermal_sensor *sensor = &data->sensor[0];
+ int i;
- hisi_thermal_toggle_sensor(sensor, false);
+ for (i = 0; i < data->nr_sensors; i++) {
+ struct hisi_thermal_sensor *sensor = &data->sensor[i];
- data->ops->disable_sensor(sensor);
+ hisi_thermal_toggle_sensor(sensor, false);
+ data->ops->disable_sensor(sensor);
+ }
return 0;
}
@@ -611,8 +620,10 @@ static int hisi_thermal_remove(struct platform_device *pdev)
static int hisi_thermal_suspend(struct device *dev)
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
+ int i;
- data->ops->disable_sensor(&data->sensor[0]);
+ for (i = 0; i < data->nr_sensors; i++)
+ data->ops->disable_sensor(&data->sensor[i]);
return 0;
}
@@ -620,8 +631,12 @@ static int hisi_thermal_suspend(struct device *dev)
static int hisi_thermal_resume(struct device *dev)
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
+ int i, ret = 0;
+
+ for (i = 0; i < data->nr_sensors; i++)
+ ret |= data->ops->enable_sensor(&data->sensor[i]);
- return data->ops->enable_sensor(&data->sensor[0]);
+ return ret;
}
#endif