pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins

commit 128f71f upstream.

The base iomux offsets for each GPIO pin line are accumulatively
calculated based off iomux width flag in rockchip_pinctrl_get_soc_data.
If the iomux width flag is one of IOMUX_WIDTH_4BIT, IOMUX_WIDTH_3BIT or
IOMUX_WIDTH_2BIT, the base offset for next pin line would increase by 8
bytes, otherwise it would increase by 4 bytes.

Despite most of GPIO2-B iomux have 2-bit data width, which can be fit
into 4 bytes space with write mask, it actually take 8 bytes width for
whole GPIO2-B line.

Commit e8448a6 ("pinctrl: rockchip: fix pinmux bits for RK3328
GPIO2-B pins") wrongly set iomux width flag to 0, causing all base
iomux offset for line after GPIO2-B to be calculated wrong. Fix the
iomux width flag to IOMUX_WIDTH_2BIT so the offset after GPIO2-B is
correctly increased by 8, matching the actual width of GPIO2-B iomux.

Fixes: e8448a6 ("pinctrl: rockchip: fix pinmux bits for RK3328 GPIO2-B pins")
Cc: [email protected]
Reported-by: Richard Kojedzinszky <[email protected]>
Closes: https://lore.kernel.org/linux-rockchip/[email protected]/
Tested-by: Richard Kojedzinszky <[email protected]>
Signed-off-by: Huang-Huang Bao <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]>
Tested-by: Daniel Golle <[email protected]>
Tested-by: Trevor Woerner <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

drivers/pinctrl/pinctrl-rockchip.c

@@ -3802,7 +3802,7 @@ static struct rockchip_pin_bank rk3328_pin_banks[] = {
 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
-			     0,
+			     IOMUX_WIDTH_2BIT,
 			     IOMUX_WIDTH_3BIT,
 			     0),
 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",