[PATCH 1/4] PM / devfreq: rk3399_dmc: Fix module autoload

From: Javier Martinez Canillas
Date: Wed Oct 19 2016 - 17:07:14 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/devfreq/rk3399_dmc.ko | grep alias
$

After this patch:

$ modinfo drivers/devfreq/rk3399_dmc.ko | grep alias
alias: of:N*T*Crockchip,rk3399-dmcC*
alias: of:N*T*Crockchip,rk3399-dmc

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

drivers/devfreq/rk3399_dmc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index e24b73d66659..77bd9d02e870 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -454,6 +454,7 @@ static const struct of_device_id rk3399dmc_devfreq_of_match[] = {
{ .compatible = "rockchip,rk3399-dmc" },
{ },
};
+MODULE_DEVICE_TABLE(of, rk3399dmc_devfreq_of_match);

static struct platform_driver rk3399_dmcfreq_driver = {
.probe = rk3399_dmcfreq_probe,
--
2.7.4