[PATCH 3/4] PM / devfreq: rockchip-dfi: Fix module autoload
Javier Martinez Canillas
javier at osg.samsung.com
Wed Oct 19 14:06:26 PDT 2016
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/event/rockchip-dfi.ko | grep alias
$
After this patch:
$ modinfo drivers/devfreq/event/rockchip-dfi.ko | grep alias
alias: of:N*T*Crockchip,rk3399-dfiC*
alias: of:N*T*Crockchip,rk3399-dfi
Signed-off-by: Javier Martinez Canillas <javier at osg.samsung.com>
---
drivers/devfreq/event/rockchip-dfi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
index 43fcc5a7f515..22b113363ffc 100644
--- a/drivers/devfreq/event/rockchip-dfi.c
+++ b/drivers/devfreq/event/rockchip-dfi.c
@@ -188,6 +188,7 @@ static const struct of_device_id rockchip_dfi_id_match[] = {
{ .compatible = "rockchip,rk3399-dfi" },
{ },
};
+MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match);
static int rockchip_dfi_probe(struct platform_device *pdev)
{
--
2.7.4
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