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>

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