thermal: stm32: Rework sensor mode management
Be sure get_temp returns an error while disabling or enabling the device.
Set THERMAL_DEVICE_ENABLED state at the end of power on function.
Set THERMAL_DEVICE_DISABLED state at the beginning of power off function.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-3-p.paillet@st.com
diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c
index 7835e10..a21fa7e0 100644
--- a/drivers/thermal/st/stm_thermal.c
+++ b/drivers/thermal/st/stm_thermal.c
@@ -160,6 +160,8 @@ static int stm_sensor_power_on(struct stm_thermal_sensor *sensor)
writel_relaxed(value, sensor->base +
DTS_CFGR1_OFFSET);
+ sensor->mode = THERMAL_DEVICE_ENABLED;
+
return 0;
}
@@ -167,6 +169,8 @@ static int stm_sensor_power_off(struct stm_thermal_sensor *sensor)
{
u32 value;
+ sensor->mode = THERMAL_DEVICE_DISABLED;
+
/* Stop measuring */
value = readl_relaxed(sensor->base + DTS_CFGR1_OFFSET);
value &= ~TS1_START;
@@ -374,7 +378,6 @@ static int stm_thermal_update_threshold(struct stm_thermal_sensor *sensor)
{
int ret;
- sensor->mode = THERMAL_DEVICE_DISABLED;
ret = stm_sensor_power_off(sensor);
if (ret)
@@ -576,8 +579,6 @@ static int stm_thermal_suspend(struct device *dev)
if (ret)
return ret;
- sensor->mode = THERMAL_DEVICE_DISABLED;
-
return 0;
}
@@ -590,7 +591,6 @@ static int stm_thermal_resume(struct device *dev)
if (ret)
return ret;
- sensor->mode = THERMAL_DEVICE_ENABLED;
return 0;
}
@@ -718,8 +718,6 @@ static int stm_thermal_probe(struct platform_device *pdev)
if (ret)
goto err_tz;
- sensor->mode = THERMAL_DEVICE_ENABLED;
-
dev_info(&pdev->dev, "%s: Driver initialized successfully\n",
__func__);