If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/i2c/busses/i2c-jz4780.ko | grep alias
$
After this patch:
$ modinfo drivers/i2c/busses/i2c-jz4780.ko | grep alias
alias: of:N*T*Cingenic,jz4780-i2cC*
alias: of:N*T*Cingenic,jz4780-i2c
Signed-off-by: Javier Martinez Canillas <jav...@osg.samsung.com>
---
drivers/i2c/busses/i2c-jz4780.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
index b8ea62105f42..30132c3957cd 100644
--- a/drivers/i2c/busses/i2c-jz4780.c
+++ b/drivers/i2c/busses/i2c-jz4780.c
@@ -729,6 +729,7 @@ static const struct of_device_id jz4780_i2c_of_matches[] = {
{ .compatible = "ingenic,jz4780-i2c", },
{ /* sentinel */ }
};
+MODULE_DEVICE_TABLE(of, jz4780_i2c_of_matches);
static int jz4780_i2c_probe(struct platform_device *pdev)
{
--
2.7.4
