[PATCH 1/9] thermal/drivers/hisi: move clk operation to related function

[Tao Wang]

From: Kevin Wangtao <kevin.wang...@linaro.org>

The sensor's clock is enabled and disabled outside of the probe and
disable function. Moving the corresponding action in the
hisi_thermal_setup() and hisi_thermal_disable_sensor(), factors out
some lines of code and makes the code more symmetric.

Signed-off-by: Kevin Wangtao <kevin.wang...@linaro.org>
---
 drivers/thermal/hisi_thermal.c | 29 +++++++++--------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 39f4627..c43e3df 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -203,6 +203,8 @@ static void hisi_thermal_disable_sensor(struct 
hisi_thermal_data *data)
        hisi_thermal_enable(data->regs, 0);
        hisi_thermal_alarm_enable(data->regs, 0);
        hisi_thermal_reset_enable(data->regs, 0);
+
+       clk_disable_unprepare(data->clk);
 }
 
 static int hisi_thermal_get_temp(void *__data, int *temp)
@@ -297,9 +299,13 @@ static void hisi_thermal_toggle_sensor(struct 
hisi_thermal_sensor *sensor,
 
 static int hisi_thermal_setup(struct hisi_thermal_data *data)
 {
-       struct hisi_thermal_sensor *sensor;
+       struct hisi_thermal_sensor *sensor = &data->sensor;
+       int ret;
 
-       sensor = &data->sensor;
+       /* enable clock for tsensor */
+       ret = clk_prepare_enable(data->clk);
+       if (ret)
+               return ret;
 
        /* disable module firstly */
        hisi_thermal_reset_enable(data->regs, 0);
@@ -363,13 +369,6 @@ static int hisi_thermal_probe(struct platform_device *pdev)
                return ret;
        }
 
-       /* enable clock for thermal */
-       ret = clk_prepare_enable(data->clk);
-       if (ret) {
-               dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret);
-               return ret;
-       }
-
        ret = hisi_thermal_register_sensor(pdev, data,
                                           &data->sensor,
                                           HISI_DEFAULT_SENSOR);
@@ -405,7 +404,6 @@ static int hisi_thermal_remove(struct platform_device *pdev)
 
        hisi_thermal_toggle_sensor(sensor, false);
        hisi_thermal_disable_sensor(data);
-       clk_disable_unprepare(data->clk);
 
        return 0;
 }
@@ -417,23 +415,14 @@ static int hisi_thermal_suspend(struct device *dev)
 
        hisi_thermal_disable_sensor(data);
 
-       clk_disable_unprepare(data->clk);
-
        return 0;
 }
 
 static int hisi_thermal_resume(struct device *dev)
 {
        struct hisi_thermal_data *data = dev_get_drvdata(dev);
-       int ret;
 
-       ret = clk_prepare_enable(data->clk);
-       if (ret)
-               return ret;
-
-       hisi_thermal_setup(data);
-
-       return 0;
+       return hisi_thermal_setup(data);
 }
 #endif
 
-- 
2.8.1