spi: ath79: Fix module autoload for OF registration

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/spi/spi-ath79.ko | grep alias
alias:          platform:ath79-spi

After this patch:

$ modinfo drivers/spi/spi-ath79.ko | grep alias
alias:          platform:ath79-spi
alias:          of:N*T*Cqca,ar7100-spiC*
alias:          of:N*T*Cqca,ar7100-spi

Signed-off-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 6165bf21d42750af1f765f2e79bc9a9a51ea734c..f369174fbd886fbbc09a13af5f9dbce66d498635 100644 (file)
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -304,6 +304,7 @@ static const struct of_device_id ath79_spi_of_match[] = {
        { .compatible = "qca,ar7100-spi", },
        { },
 };
+MODULE_DEVICE_TABLE(of, ath79_spi_of_match);
 
 static struct platform_driver ath79_spi_driver = {
        .probe          = ath79_spi_probe,