sh: shx3: Register PFC platform device

Add arch code to register the PFC platform device instead of calling the
driver directly. Platform device registration in the sh-pfc driver will
be removed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/sh/Kconfig

@@ -515,6 +515,7 @@ config CPU_SUBTYPE_SHX3
 	select CPU_SHX3
 	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 	select ARCH_REQUIRE_GPIOLIB
+	select PINCTRL
 
 # SH4AL-DSP Processor Support
 

arch/sh/kernel/cpu/sh4a/pinmux-shx3.c

@@ -10,6 +10,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/gpio.h>
+#include <cpu/pfc.h>
 #include <cpu/shx3.h>
 
 enum {
@@ -582,6 +583,6 @@ static struct pinmux_info shx3_pinmux_info = {
 
 static int __init shx3_pinmux_setup(void)
 {
-	return register_pinmux(&shx3_pinmux_info);
+	return sh_pfc_register_info(NULL, NULL, 0, &shx3_pinmux_info);
 }
 arch_initcall(shx3_pinmux_setup);