diff options
| author | David HERNANDEZ SANCHEZ <david.hernandezsanchez@st.com> | 2018-12-06 13:23:32 +0000 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2018-12-10 20:15:21 -0800 |
| commit | 3c9d082064b5ec5876f7e20bc50959d1915c5ab0 (patch) | |
| tree | d0c67dc0653a81429435cb722ab8785d90cf7961 /drivers/thermal/st | |
| parent | 7d3a2a2bbadb4bf5856ed394ba09b8fbb7a80460 (diff) | |
| download | linux-3c9d082064b5ec5876f7e20bc50959d1915c5ab0.tar.gz | |
thermal: stm32: read factory settings inside stm_thermal_prepare
Calling stm_thermal_read_factory_settings before clocking
internal peripheral causes bad register values and makes
temperature computation wrong.
Calling stm_thermal_read_factory_settings inside
stm_thermal_prepare fixes this problem as internal
peripheral is well clocked at this stage.
Fixes: 1d693155 ("thermal: add stm32 thermal driver")
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: David Hernandez Sanchez <david.hernandezsanchez@st.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal/st')
| -rw-r--r-- | drivers/thermal/st/stm_thermal.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c index 47623da0f91b..daa1257809a6 100644 --- a/drivers/thermal/st/stm_thermal.c +++ b/drivers/thermal/st/stm_thermal.c @@ -532,6 +532,10 @@ static int stm_thermal_prepare(struct stm_thermal_sensor *sensor) if (ret) return ret; + ret = stm_thermal_read_factory_settings(sensor); + if (ret) + goto thermal_unprepare; + ret = stm_thermal_calibration(sensor); if (ret) goto thermal_unprepare; @@ -636,10 +640,6 @@ static int stm_thermal_probe(struct platform_device *pdev) /* Populate sensor */ sensor->base = base; - ret = stm_thermal_read_factory_settings(sensor); - if (ret) - return ret; - sensor->clk = devm_clk_get(&pdev->dev, "pclk"); if (IS_ERR(sensor->clk)) { dev_err(&pdev->dev, "%s: failed to fetch PCLK clock\n", |