[ARM] 4842/1: pxa: remove redundant IRQ saving/restoring in clk_pxa3xx_cken_*

This is unnecessary since it is already protected by
spin_lock_irq{save, restore} in clock.c.
Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/pxa3xx.c

@@ -129,28 +129,20 @@ static void clk_pxa3xx_cken_enable(struct clk *clk)
 {
 	unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-	local_irq_disable();
-
 	if (clk->cken < 32)
 		CKENA |= mask;
 	else
 		CKENB |= mask;
-
-	local_irq_enable();
 }
 
 static void clk_pxa3xx_cken_disable(struct clk *clk)
 {
 	unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-	local_irq_disable();
-
 	if (clk->cken < 32)
 		CKENA &= ~mask;
 	else
 		CKENB &= ~mask;
-
-	local_irq_enable();
 }
 
 static const struct clkops clk_pxa3xx_cken_ops = {