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[4/4] spi: ath79: Fix module autoload for OF registration

Message ID 1479919031-5112-5-git-send-email-javier@osg.samsung.com (mailing list archive)
State Accepted
Commit d7a32394e734a004126b454cf747befb626b93ac
Headers show

Commit Message

Javier Martinez Canillas Nov. 23, 2016, 4:37 p.m. UTC 
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 <javier@osg.samsung.com>

---

 drivers/spi/spi-ath79.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 6165bf21d427..f369174fbd88 100644
--- 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,