Commit a7bebdc5 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

pinctrl: renesas: r8a77970: Add support for AVB power-source 



Add support for configuring the I/O voltage level of the Ethernet AVB
pins on the R-Car V3M SoC.  "PIN_VDDQ_AVB0" can be configured for 2.5V
or 3.3V operation.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/eb4db82bdeb67507a1a77f63b9d90280d6f38ba4.1678271030.git.geert+renesas@glider.be
parent b88e733a

drivers/pinctrl/renesas/pfc-r8a77970.c

+20 −8
Original line number Diff line number Diff line
@@ -34,7 +34,8 @@ 
	PIN_NOGP_CFG(TCK, "TCK", fn, SH_PFC_PIN_CFG_PULL_UP),		\

	PIN_NOGP_CFG(TDI, "TDI", fn, SH_PFC_PIN_CFG_PULL_UP),		\

	PIN_NOGP_CFG(TMS, "TMS", fn, SH_PFC_PIN_CFG_PULL_UP),		\

	PIN_NOGP_CFG(TRST_N, "TRST#", fn, SH_PFC_PIN_CFG_PULL_UP)

	PIN_NOGP_CFG(TRST_N, "TRST#", fn, SH_PFC_PIN_CFG_PULL_UP),	\

	PIN_NOGP_CFG(VDDQ_AVB0, "VDDQ_AVB0", fn, SH_PFC_PIN_CFG_IO_VOLTAGE_25_33)



/*

 * F_() : just information
@@ -2364,20 +2365,31 @@ static int r8a77970_pin_to_pocctrl(unsigned int pin, u32 *pocctrl) 
{

	int bit = pin & 0x1f;



	switch (pin) {

	case RCAR_GP_PIN(0, 0) ... RCAR_GP_PIN(0, 21):

		*pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg;

	if (pin >= RCAR_GP_PIN(0, 0) && pin <= RCAR_GP_PIN(0, 21))

		return bit;

	if (pin >= RCAR_GP_PIN(2, 0) && pin <= RCAR_GP_PIN(2, 9))



	case RCAR_GP_PIN(2, 0) ... RCAR_GP_PIN(2, 9):

		*pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg;

		return bit + 22;



	case RCAR_GP_PIN(2, 10) ... RCAR_GP_PIN(2, 16):

		*pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg;

	if (pin >= RCAR_GP_PIN(2, 10) && pin <= RCAR_GP_PIN(2, 16))

		return bit - 10;

	if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 16))



	case RCAR_GP_PIN(3, 0) ... RCAR_GP_PIN(3, 16):

		*pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg;

		return bit + 7;



	case PIN_VDDQ_AVB0:

		*pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg;

		return 0;



	default:

		return -EINVAL;

	}

}



static const struct pinmux_bias_reg pinmux_bias_regs[] = {

	{ PINMUX_BIAS_REG("PUEN0", 0xe6060400, "PUD0", 0xe6060440) {