From: Arnd Bergmann <arnd@xxxxxxxx>
This driver uses the extcon subsystem and fails to build
when it cannot call into that subsystem:
x86_64-linux-ld: vmlinux.o: in function `yt2_1380_fc_worker':
lenovo-yoga-tab2-pro-1380-fastcharger.c:(.text+0xa9d819): undefined reference to `extcon_get_state'
x86_64-linux-ld: lenovo-yoga-tab2-pro-1380-fastcharger.c:(.text+0xa9d853): undefined reference to `extcon_get_state'
x86_64-linux-ld: vmlinux.o: in function `yt2_1380_fc_serdev_probe':
lenovo-yoga-tab2-pro-1380-fastcharger.c:(.text+0xa9da22): undefined reference to `extcon_get_extcon_dev'
x86_64-linux-ld: lenovo-yoga-tab2-pro-1380-fastcharger.c:(.text+0xa9dc0c): undefined reference to `devm_extcon_register_notifier_all'
Add a Kconfig dependency to make it it always builds correctly.
Fixes: b2ed33e8d486 ("platform/x86: Add lenovo-yoga-tab2-pro-1380-fastcharger driver")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/platform/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 809888e4c1e7..9f850e4617bf 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -136,6 +136,7 @@ config YOGABOOK
config YT2_1380
tristate "Lenovo Yoga Tablet 2 1380 fast charge driver"
depends on SERIAL_DEV_BUS
+ depends on EXTCON
depends on ACPI
help
Say Y here to enable support for the custom fast charging protocol
--
2.39.2
