[PATCH] pinctrl: mediatek: add pinctrl-mtk-common-v2 module license

[Arnd Bergmann <arnd@xxxxxxxx>]

Kbuild warns when this file is built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o
see include/linux/module.h for more information

Add the missing license/author/description tags.

Fixes: 8174a8512e3e ("pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 6ea40b501328..b77b18fe5adc 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -993,3 +993,7 @@ int mtk_pinconf_adv_drive_get(struct mtk_pinctrl *hw,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mtk_pinconf_adv_drive_get);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Sean Wang <sean.wang@xxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Pin configuration library module for mediatek SoCs");
-- 
2.26.0