[ARM] 5474/1: U300 clocking framework

This adds the clocking framework and hooks into the clkdevice
for U300 series platforms.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-u300/clock.h

+/*
+ * arch/arm/mach-u300/include/mach/clock.h
+ *
+ * Copyright (C) 2004 - 2005 Nokia corporation
+ * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
+ * Copyright (C) 2007-2009 ST-Ericsson AB
+ * Adopted to ST-Ericsson U300 platforms by
+ * Jonas Aaberg <jonas.aberg@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __MACH_CLOCK_H
+#define __MACH_CLOCK_H
+
+#include <linux/clk.h>
+
+struct clk {
+	struct list_head node;
+	struct module *owner;
+	struct device *dev;
+	const char *name;
+	struct clk *parent;
+
+	spinlock_t lock;
+	unsigned long rate;
+	bool reset;
+	__u16 clk_val;
+	__s8 usecount;
+	__u32 res_reg;
+	__u16 res_mask;
+
+	bool hw_ctrld;
+
+	void (*recalc) (struct clk *);
+	int (*set_rate) (struct clk *, unsigned long);
+	unsigned long (*get_rate) (struct clk *);
+	unsigned long (*round_rate) (struct clk *, unsigned long);
+	void (*init) (struct clk *);
+	void (*enable) (struct clk *);
+	void (*disable) (struct clk *);
+};
+
+void u300_clock_primecells(void);
+void u300_unclock_primecells(void);
+void u300_enable_intcon_clock(void);
+void u300_enable_timer_clock(void);
+
+#endif

arch/arm/mach-u300/include/mach/clkdev.h

+#ifndef __MACH_CLKDEV_H
+#define __MACH_CLKDEV_H
+
+int __clk_get(struct clk *clk);
+void __clk_put(struct clk *clk);
+
+#endif