[PATCH v2 10/22] regulator: core: Probe regulators on demand

Tomeu Vizoso tomeu.vizoso at collabora.com
Tue Jul 28 06:19:41 PDT 2015

When looking up a regulator through its firmware 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 <tomeu.vizoso at collabora.com>

Changes in v2: None

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

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 65a3f28d452c..568f095df351 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1336,6 +1336,7 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
 	if (dev && dev->of_node) {
 		node = of_get_regulator(dev, supply);
 		if (node) {
+			fwnode_ensure_device(&node->fwnode);
 			list_for_each_entry(r, &regulator_list, list)
 				if (r->dev.parent &&

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