The driver doesn't check if the regulator_get_optional return value is
-EPROBE_DEFER so it will wrongly assume that the regulator couldn't be
found just because the regulator driver wasn't registered yet, i.e:
exynos-tmu 10060000.tmu: Regulator node (vtmu) not found
In this case the return value should be propagated to allow the driver
probe function to be deferred until the regulator driver is registered.
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/thermal/samsung/exynos_tmu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index f4f36bba7be9..f3ce94ec73b5 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1318,6 +1318,8 @@ static int exynos_tmu_probe(struct platform_device *pdev)
return ret;
}
} else {
+ if (PTR_ERR(data->regulator) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
dev_info(&pdev->dev, "Regulator node (vtmu) not found\n");
}
--
2.5.0
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