[PATCH v2 21/22] power-supply: Probe power supplies on demand

[Tomeu Vizoso]

When looking up a power supply 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/power/power_supply_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 456987c88baa..b51b0b850a17 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -206,6 +206,8 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node)
 {
 	int error;
 
+	fwnode_ensure_device(&supply_node->fwnode);
+
 	/*
 	 * class_for_each_device() either returns its own errors or values
 	 * returned by __power_supply_find_supply_from_node().
-- 
2.4.3