[ARM] omap: move clock propagation into core omap clock code

Move the clock propagation calls for set_parent and set_rate into
the core omap clock code, rather than having these calls scattered
throughout the OMAP1 and OMAP2 implementations.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index ae77e10..b7137c5 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -182,6 +182,8 @@
 	spin_lock_irqsave(&clockfw_lock, flags);
 	if (arch_clock->clk_set_rate)
 		ret = arch_clock->clk_set_rate(clk, rate);
+	if (ret == 0 && (clk->flags & RATE_PROPAGATES))
+		propagate_rate(clk);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 
 	return ret;
@@ -198,7 +200,9 @@
 
 	spin_lock_irqsave(&clockfw_lock, flags);
 	if (arch_clock->clk_set_parent)
-		ret =  arch_clock->clk_set_parent(clk, parent);
+		ret = arch_clock->clk_set_parent(clk, parent);
+	if (ret == 0 && (clk->flags & RATE_PROPAGATES))
+		propagate_rate(clk);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 
 	return ret;