From b9e25aced33eeb7279ccbaef198f28370cfb4e93 Mon Sep 17 00:00:00 2001
From: eric miao <eric.miao@marvell.com>
Date: Tue, 4 Mar 2008 14:19:58 +0800
Subject: [ARM] pxa: merge assignment of set_wake into pxa_init_{irq,gpio}()

To further clean up the GPIO and IRQ structure:

1. pxa_init_irq_gpio() and pxa_init_gpio() combines into a single
   function pxa_init_gpio()

2. assignment of set_wake merged into pxa_init_{irq,gpio}() as
   an argument

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 0e3e058..bd2a235 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -9,14 +9,13 @@
  * published by the Free Software Foundation.
  */
 
+typedef int (*set_wake_t)(unsigned int, unsigned int);
+
 struct sys_timer;
 
 extern struct sys_timer pxa_timer;
-extern void __init pxa_init_irq(int irq_nr);
-extern void __init pxa_init_irq_gpio(int gpio_nr);
-extern void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int));
-extern void __init pxa_init_gpio_set_wake(int (*set_wake)(unsigned int, unsigned int));
-extern void __init pxa_init_gpio(int gpio_nr);
+extern void __init pxa_init_irq(int irq_nr, set_wake_t fn);
+extern void __init pxa_init_gpio(int gpio_nr, set_wake_t fn);
 extern void __init pxa25x_init_irq(void);
 extern void __init pxa27x_init_irq(void);
 extern void __init pxa3xx_init_irq(void);
diff --git a/arch/arm/mach-pxa/gpio.c b/arch/arm/mach-pxa/gpio.c
index a642272..bf4c084 100644
--- a/arch/arm/mach-pxa/gpio.c
+++ b/arch/arm/mach-pxa/gpio.c
@@ -153,20 +153,6 @@ static struct pxa_gpio_chip pxa_gpio_chip[] = {
 #endif
 };
 
-void __init pxa_init_gpio(int gpio_nr)
-{
-	int i;
-
-	/* add a GPIO chip for each register bank.
-	 * the last PXA25x register only contains 21 GPIOs
-	 */
-	for (i = 0; i < gpio_nr; i += 32) {
-		if (i+32 > gpio_nr)
-			pxa_gpio_chip[i/32].chip.ngpio = gpio_nr - i;
-		gpiochip_add(&pxa_gpio_chip[i/32].chip);
-	}
-}
-
 /*
  * PXA GPIO edge detection for IRQs:
  * IRQs are generated on Falling-Edge, Rising-Edge, or both.
@@ -309,9 +295,9 @@ static struct irq_chip pxa_muxed_gpio_chip = {
 	.set_type	= pxa_gpio_irq_type,
 };
 
-void __init pxa_init_irq_gpio(int gpio_nr)
+void __init pxa_init_gpio(int gpio_nr, set_wake_t fn)
 {
-	int irq, i;
+	int irq, i, gpio;
 
 	pxa_last_gpio = gpio_nr - 1;
 
@@ -340,11 +326,15 @@ void __init pxa_init_irq_gpio(int gpio_nr)
 	/* Install handler for GPIO>=2 edge detect interrupts */
 	set_irq_chained_handler(IRQ_GPIO_2_x, pxa_gpio_demux_handler);
 
-	pxa_init_gpio(gpio_nr);
-}
+	pxa_low_gpio_chip.set_wake = fn;
+	pxa_muxed_gpio_chip.set_wake = fn;
 
-void __init pxa_init_gpio_set_wake(int (*set_wake)(unsigned int, unsigned int))
-{
-	pxa_low_gpio_chip.set_wake = set_wake;
-	pxa_muxed_gpio_chip.set_wake = set_wake;
+	/* add a GPIO chip for each register bank.
+	 * the last PXA25x register only contains 21 GPIOs
+	 */
+	for (gpio = 0, i = 0; gpio < gpio_nr; gpio += 32, i++) {
+		if (gpio + 32 > gpio_nr)
+			pxa_gpio_chip[i].chip.ngpio = gpio_nr - gpio;
+		gpiochip_add(&pxa_gpio_chip[i].chip);
+	}
 }
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index cccc3ed..fbff557 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -51,7 +51,7 @@ static struct irq_chip pxa_internal_irq_chip = {
 	.unmask		= pxa_unmask_irq,
 };
 
-void __init pxa_init_irq(int irq_nr)
+void __init pxa_init_irq(int irq_nr, set_wake_t fn)
 {
 	int irq;
 
@@ -70,12 +70,8 @@ void __init pxa_init_irq(int irq_nr)
 		set_irq_handler(irq, handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
-}
 
-void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int))
-{
-	pxa_internal_irq_chip.set_wake = set_wake;
-	pxa_init_gpio_set_wake(set_wake);
+	pxa_internal_irq_chip.set_wake = fn;
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index bb0bf51..653a3b6 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -267,9 +267,8 @@ set_pwer:
 
 void __init pxa25x_init_irq(void)
 {
-	pxa_init_irq(32);
-	pxa_init_irq_gpio(85);
-	pxa_init_irq_set_wake(pxa25x_set_wake);
+	pxa_init_irq(32, pxa25x_set_wake);
+	pxa_init_gpio(85, pxa25x_set_wake);
 }
 
 static struct platform_device *pxa25x_devices[] __initdata = {
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 54d8448..87ade40 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -340,9 +340,8 @@ set_pwer:
 
 void __init pxa27x_init_irq(void)
 {
-	pxa_init_irq(34);
-	pxa_init_irq_gpio(128);
-	pxa_init_irq_set_wake(pxa27x_set_wake);
+	pxa_init_irq(34, pxa27x_set_wake);
+	pxa_init_gpio(128, pxa27x_set_wake);
 }
 
 /*
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 8f8179b..eedcec0 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -494,15 +494,9 @@ static int pxa3xx_set_wake(unsigned int irq, unsigned int on)
 
 	return 0;
 }
-
-static void pxa3xx_init_irq_pm(void)
-{
-	pxa_init_irq_set_wake(pxa3xx_set_wake);
-}
-
 #else
 static inline void pxa3xx_init_pm(void) {}
-static inline void pxa3xx_init_irq_pm(void) {}
+#define pxa3xx_set_wake	NULL
 #endif
 
 void __init pxa3xx_init_irq(void)
@@ -513,9 +507,8 @@ void __init pxa3xx_init_irq(void)
 	value |= (1 << 6);
 	__asm__ __volatile__("mcr p15, 0, %0, c15, c1, 0\n": :"r"(value));
 
-	pxa_init_irq(56);
-	pxa_init_irq_gpio(128);
-	pxa3xx_init_irq_pm();
+	pxa_init_irq(56, pxa3xx_set_wake);
+	pxa_init_gpio(128, NULL);
 }
 
 /*
-- 
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