[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>

6 files changed, 25 insertions, 49 deletions

diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 0e3e058296fa..bd2a2356d976 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 a64227254151..bf4c08408f2e 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 cccc3ed3c679..fbff557bb225 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 bb0bf51f5039..653a3b63d073 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 54d8448cad7b..87ade40865f1 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 8f8179b2fc38..eedcec0bf3f0 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);
 }
 
 /*