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Subject[PATCH 06/14] thermal/drivers/hisi: Add multiple sensors support
Date
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>
---
drivers/thermal/hisi_thermal.c | 79 +++++++++++++++++++++++++-----------------
1 file changed, 47 insertions(+), 32 deletions(-)

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 87b82fb..a5756f6 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

--
2.7.4
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