If CONFIG_TYPEC_HD3SS3220=y, CONFIG_USB_ROLE_SWITCH=m, below errors can be found: drivers/usb/typec/hd3ss3220.o: In function `hd3ss3220_remove': hd3ss3220.c:(.text+0x64): undefined reference to `usb_role_switch_put' drivers/usb/typec/hd3ss3220.o: In function `hd3ss3220_dr_set': hd3ss3220.c:(.text+0x154): undefined reference to `usb_role_switch_set_role' drivers/usb/typec/hd3ss3220.o: In function `hd3ss3220_set_role': hd3ss3220.c:(.text+0x294): undefined reference to `usb_role_switch_set_role' hd3ss3220.c:(.text+0x2f4): undefined reference to `usb_role_switch_set_role' hd3ss3220.c:(.text+0x348): undefined reference to `usb_role_switch_set_role' hd3ss3220.c:(.text+0x390): undefined reference to `usb_role_switch_set_role' drivers/usb/typec/hd3ss3220.o: In function `hd3ss3220_probe': hd3ss3220.c:(.text+0x5e8): undefined reference to `fwnode_usb_role_switch_get' hd3ss3220.c:(.text+0x8a4): undefined reference to `usb_role_switch_put' make: *** [vmlinux] Error 1 This patch add dependency USB_ROLE_SWITCH for TYPEC_HD3SS3220. Fixes: 1c48c759ef4b ("usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Mao Wenan <maowenan@xxxxxxxxxx> --- drivers/usb/typec/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig index aceb2af..b4f2aac 100644 --- a/drivers/usb/typec/Kconfig +++ b/drivers/usb/typec/Kconfig @@ -53,6 +53,7 @@ source "drivers/usb/typec/ucsi/Kconfig" config TYPEC_HD3SS3220 tristate "TI HD3SS3220 Type-C DRP Port controller driver" depends on I2C + depends on USB_ROLE_SWITCH help Say Y or M here if your system has TI HD3SS3220 Type-C DRP Port controller driver. -- 2.7.4