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Commit 9937b8d8 authored by Ionut Nicu's avatar Ionut Nicu Committed by Wolfram Sang
Browse files

i2c: i2c-mux-gpio: use deferred probing 



If the i2c-parent bus driver is not loaded, returning
-ENODEV will force people to unload and then reload the
module again to get it working.

Signed-off-by: default avatarIonut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: default avatarPeter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 492ed77b

drivers/i2c/muxes/i2c-mux-gpio.c

+2 −2
Original line number Diff line number Diff line
@@ -79,7 +79,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, 
	adapter = of_find_i2c_adapter_by_node(adapter_np);

	if (!adapter) {

		dev_err(&pdev->dev, "Cannot find parent bus\n");

		return -ENODEV;

		return -EPROBE_DEFER;

	}

	mux->data.parent = i2c_adapter_id(adapter);

	put_device(&adapter->dev);
@@ -181,7 +181,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) 
	if (!parent) {

		dev_err(&pdev->dev, "Parent adapter (%d) not found\n",

			mux->data.parent);

		return -ENODEV;

		return -EPROBE_DEFER;

	}



	mux->parent = parent;