[PATCH 2/2] mailbox: sti: Fix module autoload for OF registration

From: Javier Martinez Canillas
Date: Wed Oct 19 2016 - 23:34:24 EST


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/mailbox/mailbox-sti.ko | grep alias
alias: platform:mailbox-sti

After this patch:

$ modinfo drivers/mailbox/mailbox-sti.ko | grep alias
alias: platform:mailbox-sti
alias: of:N*T*Cst,stih407-mailboxC*
alias: of:N*T*Cst,stih407-mailbox

Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>

---

drivers/mailbox/mailbox-sti.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/mailbox/mailbox-sti.c b/drivers/mailbox/mailbox-sti.c
index a334db5c9f1c..41bcd339b68a 100644
--- a/drivers/mailbox/mailbox-sti.c
+++ b/drivers/mailbox/mailbox-sti.c
@@ -403,6 +403,7 @@ static const struct of_device_id sti_mailbox_match[] = {
},
{ }
};
+MODULE_DEVICE_TABLE(of, sti_mailbox_match);

static int sti_mbox_probe(struct platform_device *pdev)
{
--
2.7.4