pinctrl: zynq: fix DEFINE_ZYNQ_PINMUX_FUNCTION_MUX macro

The offset to the mux register is missing.

Fixes: add958cee967 "pinctrl: Add driver for Zynq"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-zynq.c

@@ -768,12 +768,13 @@ static const char * const gpio0_groups[] = {"gpio0_0_grp",
 		.mux_val = mval,			\
 	}
 
-#define DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(fname, mval, mux, mask, shift)	\
+#define DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(fname, mval, offset, mask, shift)\
 	[ZYNQ_PMUX_##fname] = {				\
 		.name = #fname,				\
 		.groups = fname##_groups,		\
 		.ngroups = ARRAY_SIZE(fname##_groups),	\
 		.mux_val = mval,			\
+		.mux = offset,				\
 		.mux_mask = mask,			\
 		.mux_shift = shift,			\
 	}