Hi,

On Tue, Apr 07, 2026 at 11:41:56AM +0200, Johan Hovold wrote:
> The driver reuses the OF node of the parent multi-function device but
> fails to take another reference to balance the one dropped by the
> platform bus code when unbinding the MFD and deregistering the child
> devices.
> 
> Fix this by using the intended helper for reusing OF nodes.
> 
> Fixes: 5111c931f36c ("regulator: rk808: cleanup parent device usage")
> Cc: stable@vger.kernel.org	# 6.5
> Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>

-- Sebastian

>  drivers/regulator/rk808-regulator.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
> index e66408f23bb6..1e956153427e 100644
> --- a/drivers/regulator/rk808-regulator.c
> +++ b/drivers/regulator/rk808-regulator.c
> @@ -2114,8 +2114,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
>  	struct regmap *regmap;
>  	int ret, i, nregulators;
>  
> -	pdev->dev.of_node = pdev->dev.parent->of_node;
> -	pdev->dev.of_node_reused = true;
> +	device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
>  
>  	regmap = dev_get_regmap(pdev->dev.parent, NULL);
>  	if (!regmap)
> -- 
> 2.52.0
>