1 files changed, 97 insertions, 0 deletions
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
new file mode 100644
index 000000000000..720dfab7b15e
--- /dev/null
+++ b/arch/sh/include/asm/clock.h
@@ -0,0 +1,97 @@
+#ifndef __ASM_SH_CLOCK_H
+#define __ASM_SH_CLOCK_H
+
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/seq_file.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+struct clk;
+
+struct clk_ops {
+	void (*init)(struct clk *clk);
+	void (*enable)(struct clk *clk);
+	void (*disable)(struct clk *clk);
+	void (*recalc)(struct clk *clk);
+	int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);
+	long (*round_rate)(struct clk *clk, unsigned long rate);
+};
+
+struct clk {
+	struct list_head	node;
+	const char		*name;
+	int			id;
+	struct module		*owner;
+
+	struct clk		*parent;
+	struct clk_ops		*ops;
+
+	struct kref		kref;
+
+	unsigned long		rate;
+	unsigned long		flags;
+	unsigned long		arch_flags;
+};
+
+#define CLK_ALWAYS_ENABLED	(1 << 0)
+#define CLK_RATE_PROPAGATES	(1 << 1)
+
+/* Should be defined by processor-specific code */
+void arch_init_clk_ops(struct clk_ops **, int type);
+
+/* arch/sh/kernel/cpu/clock.c */
+int clk_init(void);
+
+void clk_recalc_rate(struct clk *);
+
+int clk_register(struct clk *);
+void clk_unregister(struct clk *);
+
+static inline int clk_always_enable(const char *id)
+{
+	struct clk *clk;
+	int ret;
+
+	clk = clk_get(NULL, id);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	ret = clk_enable(clk);
+	if (ret)
+		clk_put(clk);
+
+	return ret;
+}
+
+/* the exported API, in addition to clk_set_rate */
+/**
+ * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter
+ * @clk: clock source
+ * @rate: desired clock rate in Hz
+ * @algo_id: algorithm id to be passed down to ops->set_rate
+ *
+ * Returns success (0) or negative errno.
+ */
+int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id);
+
+enum clk_sh_algo_id {
+	NO_CHANGE = 0,
+
+	IUS_N1_N1,
+	IUS_322,
+	IUS_522,
+	IUS_N11,
+
+	SB_N1,
+
+	SB3_N1,
+	SB3_32,
+	SB3_43,
+	SB3_54,
+
+	BP_N1,
+
+	IP_N1,
+};
+#endif /* __ASM_SH_CLOCK_H */