[PATCH 6.4 129/800] regulator: rk808: fix asynchronous probing

Greg Kroah-Hartman
2023-07-16T19:58:50Z

From: Sebastian Reichel <sebastian.reichel@collabora.com>

[ Upstream commit 1b9e86d445a0f5c6d8dcbaf11508cb5dfb5848a8 ]

If the probe routine fails with -EPROBE_DEFER after taking over the
OF node from its parent driver, reprobing triggers pinctrl_bind_pins()
and that will fail. Fix this by setting of_node_reused, so that the
device does not try to setup pin muxing.

For me this always happens once the driver is marked to prefer async
probing and never happens without that flag.

Fixes: 259b93b21a9f ("regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in 4.14")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-12-sebastian.reichel@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/rk808-regulator.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 3637e81654a8e..80ba782d89239 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -1336,6 +1336,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)

config.dev = &pdev->dev;
config.dev->of_node = pdev->dev.parent->of_node;
+ config.dev->of_node_reused = true;
config.driver_data = pdata;
config.regmap = regmap;

--
2.39.2