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-xlp9xx.ko | grep alias
$
After this patch:
$ modinfo drivers/i2c/busses/i2c-xlp9xx.ko | grep alias
alias: of:N*T*Cnetlogic,xlp980-i2cC*
alias: of:N*T*Cnetlogic,xlp980-i2c
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-xlp9xx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c
index 2a972ed7aa0d..e29ff37a43bd 100644
--- a/drivers/i2c/busses/i2c-xlp9xx.c
+++ b/drivers/i2c/busses/i2c-xlp9xx.c
@@ -426,6 +426,7 @@ static const struct of_device_id xlp9xx_i2c_of_match[] = {
{ .compatible = "netlogic,xlp980-i2c", },
{ /* sentinel */ },
};
+MODULE_DEVICE_TABLE(of, xlp9xx_i2c_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id xlp9xx_i2c_acpi_ids[] = {
--
2.7.4
--
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