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-rw-r--r--kernel/arch/arm/mach-shmobile/clock.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-shmobile/clock.h b/kernel/arch/arm/mach-shmobile/clock.h
new file mode 100644
index 000000000..cf3552ea1
--- /dev/null
+++ b/kernel/arch/arm/mach-shmobile/clock.h
@@ -0,0 +1,42 @@
+#ifndef CLOCK_H
+#define CLOCK_H
+
+/* legacy clock implementation */
+
+struct clk;
+unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk);
+extern struct sh_clk_ops shmobile_fixed_ratio_clk_ops;
+
+/* clock ratio */
+struct clk_ratio {
+ int mul;
+ int div;
+};
+
+#define SH_CLK_RATIO(name, m, d) \
+static struct clk_ratio name ##_ratio = { \
+ .mul = m, \
+ .div = d, \
+}
+
+#define SH_FIXED_RATIO_CLKg(name, p, r) \
+struct clk name = { \
+ .parent = &p, \
+ .ops = &shmobile_fixed_ratio_clk_ops,\
+ .priv = &r ## _ratio, \
+}
+
+#define SH_FIXED_RATIO_CLK(name, p, r) \
+static SH_FIXED_RATIO_CLKg(name, p, r)
+
+#define SH_FIXED_RATIO_CLK_SET(name, p, m, d) \
+ SH_CLK_RATIO(name, m, d); \
+ SH_FIXED_RATIO_CLK(name, p, name)
+
+#define SH_CLK_SET_RATIO(p, m, d) \
+do { \
+ (p)->mul = m; \
+ (p)->div = d; \
+} while (0)
+
+#endif