RXD9 454 drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c SIG_EXPR_LIST_DECL_SESG(B21, RXD9, UART9, SIG_DESC_SET(SCU414, 23)); RXD9 459 drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c PIN_DECL_3(B21, GPIOG7, RXD9, SD2WP, SALT16);