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-rw-r--r--drivers/pnp/pnpacpi/rsparser.c16
-rw-r--r--include/linux/ioport.h6
2 files changed, 15 insertions, 7 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 0201c8adfda7..ab09fe6fe1e4 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -56,9 +56,11 @@ static int irq_flags(int triggering, int polarity, int shareable)
return flags;
}
-static void decode_irq_flags(int flag, int *triggering, int *polarity)
+static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
+ int *polarity)
{
- switch (flag) {
+ switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
+ IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
case IORESOURCE_IRQ_LOWLEVEL:
*triggering = ACPI_LEVEL_SENSITIVE;
*polarity = ACPI_ACTIVE_LOW;
@@ -75,6 +77,12 @@ static void decode_irq_flags(int flag, int *triggering, int *polarity)
*triggering = ACPI_EDGE_SENSITIVE;
*polarity = ACPI_ACTIVE_HIGH;
break;
+ default:
+ dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
+ flags);
+ *triggering = ACPI_EDGE_SENSITIVE;
+ *polarity = ACPI_ACTIVE_HIGH;
+ break;
}
}
@@ -790,7 +798,7 @@ static void pnpacpi_encode_irq(struct pnp_dev *dev,
struct acpi_resource_irq *irq = &resource->data.irq;
int triggering, polarity;
- decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
+ decode_irq_flags(dev, p->flags, &triggering, &polarity);
irq->triggering = triggering;
irq->polarity = polarity;
if (triggering == ACPI_EDGE_SENSITIVE)
@@ -813,7 +821,7 @@ static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
int triggering, polarity;
- decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
+ decode_irq_flags(dev, p->flags, &triggering, &polarity);
extended_irq->producer_consumer = ACPI_CONSUMER;
extended_irq->triggering = triggering;
extended_irq->polarity = polarity;
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index d5d40a9f7929..c6801bffe76d 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -53,14 +53,14 @@ struct resource_list {
#define IORESOURCE_AUTO 0x40000000
#define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */
-/* ISA PnP IRQ specific bits (IORESOURCE_BITS) */
+/* PnP IRQ specific bits (IORESOURCE_BITS) */
#define IORESOURCE_IRQ_HIGHEDGE (1<<0)
#define IORESOURCE_IRQ_LOWEDGE (1<<1)
#define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
#define IORESOURCE_IRQ_LOWLEVEL (1<<3)
#define IORESOURCE_IRQ_SHAREABLE (1<<4)
-/* ISA PnP DMA specific bits (IORESOURCE_BITS) */
+/* PnP DMA specific bits (IORESOURCE_BITS) */
#define IORESOURCE_DMA_TYPE_MASK (3<<0)
#define IORESOURCE_DMA_8BIT (0<<0)
#define IORESOURCE_DMA_8AND16BIT (1<<0)
@@ -76,7 +76,7 @@ struct resource_list {
#define IORESOURCE_DMA_TYPEB (2<<6)
#define IORESOURCE_DMA_TYPEF (3<<6)
-/* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */
+/* PnP memory I/O specific bits (IORESOURCE_BITS) */
#define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */
#define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */
#define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */