PNP: add pnp_resource_type_name() helper function

This patch adds a "pnp_resource_type_name(struct resource *)" that
returns the string resource type.  This will be used by the sysfs
"show resources" function and the debug resource dump function.

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

2 files changed, 16 insertions, 0 deletions

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 4c2a62564994..c91315826da2 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -43,6 +43,7 @@ int pnp_check_mem(struct pnp_dev *dev, struct resource *res);
 int pnp_check_irq(struct pnp_dev *dev, struct resource *res);
 int pnp_check_dma(struct pnp_dev *dev, struct resource *res);
 
+char *pnp_resource_type_name(struct resource *res);
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
 
 void pnp_init_resource(struct resource *res);
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index 7f594ccf4958..eb07345f5cf7 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -52,6 +52,21 @@ void pnp_eisa_id_to_string(u32 id, char *str)
         str[7] = '\0';
 }
 
+char *pnp_resource_type_name(struct resource *res)
+{
+        switch (pnp_resource_type(res)) {
+        case IORESOURCE_IO:
+                return "io";
+        case IORESOURCE_MEM:
+                return "mem";
+        case IORESOURCE_IRQ:
+                return "irq";
+        case IORESOURCE_DMA:
+                return "dma";
+        }
+        return NULL;
+}
+
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
 {
 #ifdef DEBUG