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path: root/drivers/pnp/resource.c
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Diffstat (limited to 'drivers/pnp/resource.c')
-rw-r--r--drivers/pnp/resource.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index eee6d8eddcb4..ef8835ec5778 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -487,6 +487,33 @@ int pnp_check_dma(struct pnp_dev *dev, int idx)
#endif
}
+struct resource *pnp_get_resource(struct pnp_dev *dev,
+ unsigned int type, unsigned int num)
+{
+ struct pnp_resource_table *res = &dev->res;
+
+ switch (type) {
+ case IORESOURCE_IO:
+ if (num >= PNP_MAX_PORT)
+ return NULL;
+ return &res->port_resource[num];
+ case IORESOURCE_MEM:
+ if (num >= PNP_MAX_MEM)
+ return NULL;
+ return &res->mem_resource[num];
+ case IORESOURCE_IRQ:
+ if (num >= PNP_MAX_IRQ)
+ return NULL;
+ return &res->irq_resource[num];
+ case IORESOURCE_DMA:
+ if (num >= PNP_MAX_DMA)
+ return NULL;
+ return &res->dma_resource[num];
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(pnp_get_resource);
+
/* format is: pnp_reserve_irq=irq1[,irq2] .... */
static int __init pnp_setup_reserve_irq(char *str)
{