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authorJavier Martinez Canillas <javier@osg.samsung.com>2016-02-18 21:19:10 +0300
committerEduardo Valentin <edubezval@gmail.com>2016-03-09 01:21:41 +0300
commit4d3583cd1cb1a51825f195b2cfe8b855827803eb (patch)
tree4864a2d579886cf6674ec8ea9059636d93bbb768 /drivers/thermal
parent7bc40ddfe807b07bd54193791296a3a9448280de (diff)
downloadlinux-4d3583cd1cb1a51825f195b2cfe8b855827803eb.tar.xz
thermal: exynos: Use devm_regulator_get_optional() for vtmu
The Exynos TMU DT binding says that the vtmu-supply is optional but the driver uses devm_regulator_get() that creates a dummy regulator if it's not defined in the DT. For example the following message is in the log: 10060000.tmu supply vtmu not found, using dummy regulator Use the optional version of regulator_get() that doesn't create a dummy regulator and instead returns a -ENODEV errno code. Since it's expected that a regulator may not be defined and the driver will inform about it: exynos-tmu 10060000.tmu: Regulator node (vtmu) not found Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/samsung/exynos_tmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 6c6f59ba7423..f4f36bba7be9 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1310,7 +1310,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
* TODO: Add regulator as an SOC feature, so that regulator enable
* is a compulsory call.
*/
- data->regulator = devm_regulator_get(&pdev->dev, "vtmu");
+ data->regulator = devm_regulator_get_optional(&pdev->dev, "vtmu");
if (!IS_ERR(data->regulator)) {
ret = regulator_enable(data->regulator);
if (ret) {