Messages in this thread Patch in this message | | | Date | Wed, 09 Oct 2013 11:50:45 +0200 | From | Ionut Nicu <> | Subject | [PATCH 1/2] i2c-mux-gpio: use deferred probing |
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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: Ionut Nicu <ioan.nicu.ext@nsn.com> --- drivers/i2c/muxes/i2c-mux-gpio.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 5d4a99b..ff184eb 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -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); @@ -177,7 +177,7 @@ 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; -- 1.7.1
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