ARM: OMAP2: clock: Convert to common clk

Convert all OMAP2 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/clkt2xxx_sys.c b/arch/arm/mach-omap2/clkt2xxx_sys.c
index 46683b3..e6e73cf 100644
--- a/arch/arm/mach-omap2/clkt2xxx_sys.c
+++ b/arch/arm/mach-omap2/clkt2xxx_sys.c
@@ -40,9 +40,16 @@
 	return div;
 }
 
+#ifdef CONFIG_COMMON_CLK
+unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
+				      unsigned long parent_rate)
+{
+	return parent_rate / omap2xxx_get_sysclkdiv();
+}
+#else
 unsigned long omap2xxx_sys_clk_recalc(struct clk *clk)
 {
 	return clk->parent->rate / omap2xxx_get_sysclkdiv();
 }
-
+#endif