[PATCH v7 07/20] regulator: core: Probe regulators on demand
From: Tomeu Vizoso <hidden>
Date: 2015-09-29 09:13:45
Also in:
linux-acpi, linux-arm-kernel, lkml
Subsystem:
the rest, voltage and current regulator framework · Maintainers:
Linus Torvalds, Liam Girdwood, Mark Brown
When looking up a regulator through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso <redacted> Acked-by: Mark Brown <broonie@kernel.org> --- drivers/regulator/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7a85ac9e32c5..ee75199c2cfa 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c@@ -26,6 +26,7 @@ #include <linux/gpio.h> #include <linux/gpio/consumer.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/regmap.h> #include <linux/regulator/of_regulator.h> #include <linux/regulator/consumer.h>
@@ -1340,6 +1341,7 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev, if (dev && dev->of_node) { node = of_get_regulator(dev, supply); if (node) { + of_device_probe(node); list_for_each_entry(r, ®ulator_list, list) if (r->dev.parent && node == r->dev.of_node)
--
2.4.3