[PATCH v4 08/22] regulator: core: Probe regulators on demand

From: Tomeu Vizoso
Date: Mon Sep 07 2015 - 08:25:03 EST

When looking up a regulator through its OF node, probe it if it hasn't

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 <tomeu.vizoso@xxxxxxxxxxxxx>

Changes in v4: None
Changes in v3: None
Changes in v2: None

drivers/regulator/core.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f4aa6cae76d5..615133f45c76 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, &regulator_list, list)
if (r->dev.parent &&

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