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authorIonut Nicu <ioan.nicu.ext@nsn.com>2013-10-09 11:50:45 +0200
committerWolfram Sang <wsa@the-dreams.de>2013-10-10 10:22:33 +0200
commit9937b8d89e1b70c08330b57afbc62c934e37c9e2 (patch)
tree7634cf32455503af0eb60c1ad26f86c916a6679b /drivers/i2c
parent492ed77bfadb968cca7beca348cd45b444393cd4 (diff)
downloadlinux-9937b8d89e1b70c08330b57afbc62c934e37c9e2.tar.bz2
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.c4
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;