The I2C driver has an i2c_device_id array but that information isn't exported to the module using the MODULE_DEVICE_TABLE() macro. So the module autoloading won't work if the I2C device is registered using OF or legacy board files due missing alias information in the module.
The issue was found using Kieran Bingham's coccinelle semantic patch: https://lkml.org/lkml/2016/5/10/520
Signed-off-by: Javier Martinez Canillas javier@osg.samsung.com
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sound/soc/codecs/nau8825.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c index 81fc97b07751..e988f89ef715 100644 --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -1493,6 +1493,7 @@ static const struct i2c_device_id nau8825_i2c_ids[] = { { "nau8825", 0 }, { } }; +MODULE_DEVICE_TABLE(i2c, nau8825_i2c_ids);
#ifdef CONFIG_OF static const struct of_device_id nau8825_of_ids[] = {