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/watchdog/bcm7038_wdt.ko | grep alias
$
After this patch:
$ modinfo drivers/watchdog/bcm7038_wdt.ko | grep alias
alias: of:N*T*Cbrcm,bcm7038-wdtC*
alias: of:N*T*Cbrcm,bcm7038-wdt
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/watchdog/bcm7038_wdt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c
index e238df4d75a2..4814c00b32f6 100644
--- a/drivers/watchdog/bcm7038_wdt.c
+++ b/drivers/watchdog/bcm7038_wdt.c
@@ -216,6 +216,7 @@ static const struct of_device_id bcm7038_wdt_match[] = {
{ .compatible = "brcm,bcm7038-wdt" },
{},
};
+MODULE_DEVICE_TABLE(of, bcm7038_wdt_match);
static struct platform_driver bcm7038_wdt_driver = {
.probe = bcm7038_wdt_probe,
--
2.7.4
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