sh: shared div4 clock code

Add shared code for 4-bit divisor clocks.

Processor specific code can use SH_CLK_DIV4()
to initialize div4 clocks, and then use
sh_clk_div4_register() for registration.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index f43d3e72d266..7435e40022e6 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -3,6 +3,7 @@
 
 #include <linux/list.h>
 #include <linux/seq_file.h>
+#include <linux/cpufreq.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 
@@ -41,6 +42,7 @@ struct clk {
         unsigned long           arch_flags;
         void                    *priv;
         struct dentry           *dentry;
+        struct cpufreq_frequency_table *freq_table;
 };
 
 struct clk_lookup {
@@ -130,4 +132,17 @@ long clk_rate_table_round(struct clk *clk,
 
 int sh_clk_mstp32_register(struct clk *clks, int nr);
 
+#define SH_CLK_DIV4(_name, _parent, _reg, _shift, _div_bitmap, _flags)  \
+{                                                                       \
+        .name = _name,                                                  \
+        .parent = _parent,                                              \
+        .enable_reg = (void __iomem *)_reg,                             \
+        .enable_bit = _shift,                                           \
+        .arch_flags = _div_bitmap,                                      \
+        .flags = _flags,                                                \
+}
+
+int sh_clk_div4_register(struct clk *clks, int nr,
+                         struct clk_div_mult_table *table);
+
 #endif /* __ASM_SH_CLOCK_H */