sh: Add PFC platform device registration helper function

The sh_pfc_register() function can be called by boards or SoC setup code
to register the PFC platform device.

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>

3 files changed, 75 insertions, 1 deletions

diff --git a/arch/sh/include/cpu-common/cpu/pfc.h b/arch/sh/include/cpu-common/cpu/pfc.h
new file mode 100644
index 000000000000..40e864360543
--- /dev/null
+++ b/arch/sh/include/cpu-common/cpu/pfc.h
@@ -0,0 +1,30 @@
+/*
+ * SH Pin Function Control Initialization
+ *
+ * Copyright (C) 2012  Renesas Solutions Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_SH_CPU_PFC_H__
+#define __ARCH_SH_CPU_PFC_H__
+
+#include <linux/types.h>
+
+struct pinmux_info;
+struct resource;
+
+int sh_pfc_register(const char *name,
+                    struct resource *resource, u32 num_resources);
+int sh_pfc_register_info(const char *name,
+                         struct resource *resource, u32 num_resources,
+                         struct pinmux_info *pdata);
+
+#endif /* __ARCH_SH_CPU_PFC_H__ */
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index fa58bfd30d82..accc7ca722e1 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -18,4 +18,4 @@ obj-$(CONFIG_ARCH_SHMOBILE)	+= shmobile/
 obj-$(CONFIG_SH_ADC)            += adc.o
 obj-$(CONFIG_SH_CLK_CPG_LEGACY) += clock-cpg.o
 
-obj-y   += irq/ init.o clock.o fpu.o proc.o
+obj-y   += irq/ init.o clock.o fpu.o pfc.o proc.o
diff --git a/arch/sh/kernel/cpu/pfc.c b/arch/sh/kernel/cpu/pfc.c
new file mode 100644
index 000000000000..d045d75c05be
--- /dev/null
+++ b/arch/sh/kernel/cpu/pfc.c
@@ -0,0 +1,44 @@
+/*
+ * SH Pin Function Control Initialization
+ *
+ * Copyright (C) 2012  Renesas Solutions Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <cpu/pfc.h>
+
+static struct platform_device sh_pfc_device = {
+        .name           = "sh-pfc",
+        .id             = -1,
+};
+
+int __init sh_pfc_register(const char *name,
+                           struct resource *resource, u32 num_resources)
+{
+        if (name)
+                sh_pfc_device.name = name;
+        sh_pfc_device.num_resources = num_resources;
+        sh_pfc_device.resource = resource;
+
+        return platform_device_register(&sh_pfc_device);
+}
+
+int __init sh_pfc_register_info(const char *name,
+                                struct resource *resource, u32 num_resources,
+                                struct pinmux_info *pdata)
+{
+        sh_pfc_device.dev.platform_data = pdata;
+
+        return sh_pfc_register(name, resource, num_resources);
+}