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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-04-28 16:34:35 -0600
committerLen Brown <len.brown@intel.com>2008-04-29 03:22:28 -0400
commitdc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2 (patch)
treeb4ba965b7c5e1e6011697160aa5346b63afbbbf9 /drivers/pnp/resource.c
parentdbddd0383c59d588f8db5e773b062756e39117ec (diff)
PNP: make generic pnp_add_dma_resource()
Add a pnp_add_dma_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pnp/resource.c')
-rw-r--r--drivers/pnp/resource.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 082a556b9dcc..2a8612e31ab7 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -602,6 +602,32 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
return pnp_res;
}
+struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
+ int flags)
+{
+ struct pnp_resource *pnp_res;
+ struct resource *res;
+ static unsigned char warned;
+
+ pnp_res = pnp_new_resource(dev, IORESOURCE_DMA);
+ if (!pnp_res) {
+ if (!warned) {
+ dev_err(&dev->dev, "can't add resource for DMA %d\n",
+ dma);
+ warned = 1;
+ }
+ return NULL;
+ }
+
+ res = &pnp_res->res;
+ res->flags = IORESOURCE_DMA | flags;
+ res->start = dma;
+ res->end = dma;
+
+ dev_dbg(&dev->dev, " add dma %d flags %#x\n", dma, flags);
+ return pnp_res;
+}
+
/* format is: pnp_reserve_irq=irq1[,irq2] .... */
static int __init pnp_setup_reserve_irq(char *str)
{

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