ARM: pxa: convert incorrect IRQ_TO_IRQ() to irq_to_gpio()

This fixes the failure to register the IRQ_RTCAlrm alarm as a wakeup
event.  It is misinterpreted as a gpio irq not a PWER bitmask. Fixed
this by converting the incorrect IRQ_TO_IRQ() to a correct version of
irq_to_gpio().

Reported-by: Nick Bane <nickbane1@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
index 48ef925..c463950 100644 (file)
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -103,7 +103,20 @@
 
 #define gpio_to_bank(gpio)     ((gpio) >> 5)
 #define gpio_to_irq(gpio)      IRQ_GPIO(gpio)
-#define irq_to_gpio(irq)       IRQ_TO_GPIO(irq)
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+       int gpio;
+
+       if (irq == IRQ_GPIO0 || irq == IRQ_GPIO1)
+               return irq - IRQ_GPIO0;
+
+       gpio = irq - PXA_GPIO_IRQ_BASE;
+       if (gpio >= 2 && gpio < NR_BUILTIN_GPIO)
+               return gpio;
+
+       return -1;
+}
 
 #ifdef CONFIG_CPU_PXA26x
 /* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted,

diff --git a/arch/arm/mach-pxa/include/mach/irqs.h b/arch/arm/mach-pxa/include/mach/irqs.h
index a4285fc..0384024 100644 (file)
--- a/arch/arm/mach-pxa/include/mach/irqs.h
+++ b/arch/arm/mach-pxa/include/mach/irqs.h
@@ -93,9 +93,6 @@
 #define GPIO_2_x_TO_IRQ(x)     (PXA_GPIO_IRQ_BASE + (x))
 #define IRQ_GPIO(x)    (((x) < 2) ? (IRQ_GPIO0 + (x)) : GPIO_2_x_TO_IRQ(x))
 
-#define IRQ_TO_GPIO_2_x(i)     ((i) - PXA_GPIO_IRQ_BASE)
-#define IRQ_TO_GPIO(i) (((i) < IRQ_GPIO(2)) ? ((i) - IRQ_GPIO0) : IRQ_TO_GPIO_2_x(i))
-
 /*
  * The following interrupts are for board specific purposes. Since
  * the kernel can only run on one machine at a time, we can re-use

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 6bde595..a4af8c5 100644 (file)
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -285,7 +285,7 @@ static inline void pxa25x_init_pm(void) {}
 
 static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
 {
-       int gpio = IRQ_TO_GPIO(d->irq);
+       int gpio = irq_to_gpio(d->irq);
        uint32_t mask = 0;
 
        if (gpio >= 0 && gpio < 85)

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 1cb5d0f..909756e 100644 (file)
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -345,7 +345,7 @@ static inline void pxa27x_init_pm(void) {}
  */
 static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
 {
-       int gpio = IRQ_TO_GPIO(d->irq);
+       int gpio = irq_to_gpio(d->irq);
        uint32_t mask;
 
        if (gpio >= 0 && gpio < 128)

diff --git a/drivers/pcmcia/pxa2xx_trizeps4.c b/drivers/pcmcia/pxa2xx_trizeps4.c
index 5bb4e1a..b829e65 100644 (file)
--- a/drivers/pcmcia/pxa2xx_trizeps4.c
+++ b/drivers/pcmcia/pxa2xx_trizeps4.c
@@ -69,15 +69,15 @@ static int trizeps_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
        for (i = 0; i < ARRAY_SIZE(irqs); i++) {
                if (irqs[i].sock != skt->nr)
                        continue;
-               if (gpio_request(IRQ_TO_GPIO(irqs[i].irq), irqs[i].str) < 0) {
+               if (gpio_request(irq_to_gpio(irqs[i].irq), irqs[i].str) < 0) {
                        pr_err("%s: sock %d unable to request gpio %d\n",
-                               __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq));
+                               __func__, skt->nr, irq_to_gpio(irqs[i].irq));
                        ret = -EBUSY;
                        goto error;
                }
-               if (gpio_direction_input(IRQ_TO_GPIO(irqs[i].irq)) < 0) {
+               if (gpio_direction_input(irq_to_gpio(irqs[i].irq)) < 0) {
                        pr_err("%s: sock %d unable to set input gpio %d\n",
-                               __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq));
+                               __func__, skt->nr, irq_to_gpio(irqs[i].irq));
                        ret = -EINVAL;
                        goto error;
                }
@@ -86,7 +86,7 @@ static int trizeps_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 
 error:
        for (; i >= 0; i--) {
-               gpio_free(IRQ_TO_GPIO(irqs[i].irq));
+               gpio_free(irq_to_gpio(irqs[i].irq));
        }
        return (ret);
 }
@@ -97,7 +97,7 @@ static void trizeps_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
        /* free allocated gpio's */
        gpio_free(GPIO_PRDY);
        for (i = 0; i < ARRAY_SIZE(irqs); i++)
-               gpio_free(IRQ_TO_GPIO(irqs[i].irq));
+               gpio_free(irq_to_gpio(irqs[i].irq));
 }
 
 static unsigned long trizeps_pcmcia_status[2];