Add MODULE_LICENSE("GPL v2") macro and change Kconfig option from
bool to tristate to allow building as a loadable kernel module.

This is required for Android GKI + vendor_dlkm deployments where
vendor-specific drivers must be kept separate from the GKI vmlinux.

Fixes: dc6ae2057c9c ("pinctrl: ralink: move to mediatek as mtmips")
Signed-off-by: Justin Yeh <redacted>
---
 drivers/pinctrl/mediatek/Kconfig          | 2 +-
 drivers/pinctrl/mediatek/pinctrl-rt2880.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mediatek/Kconfig b/drivers/pinctrl/mediatek/Kconfig
index 19593279109d..d596d7c742dc 100644
--- a/drivers/pinctrl/mediatek/Kconfig
+++ b/drivers/pinctrl/mediatek/Kconfig

@@ -69,7 +69,7 @@ config PINCTRL_MT76X8
 	select PINCTRL_MTK_MTMIPS
 
 config PINCTRL_RT2880
-	bool "Ralink RT2880 pin control"
+	tristate "Ralink RT2880 pin control"
 	depends on SOC_RT288X || COMPILE_TEST
 	depends on RALINK
 	default SOC_RT288X

diff --git a/drivers/pinctrl/mediatek/pinctrl-rt2880.c b/drivers/pinctrl/mediatek/pinctrl-rt2880.c
index e0366721a515..587d782a9b67 100644
--- a/drivers/pinctrl/mediatek/pinctrl-rt2880.c
+++ b/drivers/pinctrl/mediatek/pinctrl-rt2880.c

@@ -59,3 +59,6 @@ static int __init rt2880_pinctrl_init(void)
 	return platform_driver_register(&rt2880_pinctrl_driver);
 }
 core_initcall_sync(rt2880_pinctrl_init);
+
+MODULE_DESCRIPTION("MediaTek RT2880 Pinctrl Driver");
+MODULE_LICENSE("GPL v2");

-- 
2.45.2