PNP: add pnp_get_pnp_resource()

In some places, we need to get the struct pnp_resource, not just
the struct resource, because ISAPNP needs to store the register
index in the pnp_resource.

I don't like pnp_get_pnp_resource() and hope that it is temporary,
but we need it for a little while.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 21 insertions, 6 deletions

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 1d6bb351d323..49b4138f3476 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -21,6 +21,9 @@ void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
 
 void pnp_init_resource(struct resource *res);
 
+struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
+                                          unsigned int type, unsigned int num);
+
 #define PNP_MAX_PORT            40
 #define PNP_MAX_MEM             24
 #define PNP_MAX_IRQ              2
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 7e9f4300e5f6..c57cfe51d52a 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -499,8 +499,8 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
 #endif
 }
 
-struct resource *pnp_get_resource(struct pnp_dev *dev,
-                                  unsigned int type, unsigned int num)
+struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
+                                          unsigned int type, unsigned int num)
 {
         struct pnp_resource_table *res = dev->res;
 
@@ -508,22 +508,34 @@ struct resource *pnp_get_resource(struct pnp_dev *dev,
         case IORESOURCE_IO:
                 if (num >= PNP_MAX_PORT)
                         return NULL;
-                return &res->port[num].res;
+                return &res->port[num];
         case IORESOURCE_MEM:
                 if (num >= PNP_MAX_MEM)
                         return NULL;
-                return &res->mem[num].res;
+                return &res->mem[num];
         case IORESOURCE_IRQ:
                 if (num >= PNP_MAX_IRQ)
                         return NULL;
-                return &res->irq[num].res;
+                return &res->irq[num];
         case IORESOURCE_DMA:
                 if (num >= PNP_MAX_DMA)
                         return NULL;
-                return &res->dma[num].res;
+                return &res->dma[num];
         }
         return NULL;
 }
+
+struct resource *pnp_get_resource(struct pnp_dev *dev,
+                                  unsigned int type, unsigned int num)
+{
+        struct pnp_resource *pnp_res;
+
+        pnp_res = pnp_get_pnp_resource(dev, type, num);
+        if (pnp_res)
+                return &pnp_res->res;
+
+        return NULL;
+}
 EXPORT_SYMBOL(pnp_get_resource);
 
 /* format is: pnp_reserve_irq=irq1[,irq2] .... */