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| author | Ionut Nicu <ioan.nicu.ext@nsn.com> | 2013-10-09 11:50:45 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2013-10-10 10:22:33 +0200 |
| commit | 9937b8d89e1b70c08330b57afbc62c934e37c9e2 (patch) | |
| tree | 7634cf32455503af0eb60c1ad26f86c916a6679b /drivers/i2c | |
| parent | 492ed77bfadb968cca7beca348cd45b444393cd4 (diff) | |
| download | linux-9937b8d89e1b70c08330b57afbc62c934e37c9e2.tar.gz linux-9937b8d89e1b70c08330b57afbc62c934e37c9e2.tar.bz2 linux-9937b8d89e1b70c08330b57afbc62c934e37c9e2.zip | |
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: Ionut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | 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 7f343bcd492e..a764da777f08 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); @@ -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; |