FRB_A 793 drivers/pinctrl/sh-pfc/pfc-sh7734.c PINMUX_IPSR_MSEL(IP2_27_25, FRB_A, SEL_FLCTL_0), FRB_A 1437 drivers/pinctrl/sh-pfc/pfc-sh7734.c GPIO_FN(D13), GPIO_FN(RX2_B), GPIO_FN(FRB_A), GPIO_FN(ET0_ETXD6_B),