aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pnp/resource.c
diff options
context:
space:
mode:
authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-04-28 18:34:35 -0400
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,
602 return pnp_res; 602 return pnp_res;
603} 603}
604 604
605struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
606 int flags)
607{
608 struct pnp_resource *pnp_res;
609 struct resource *res;
610 static unsigned char warned;
611
612 pnp_res = pnp_new_resource(dev, IORESOURCE_DMA);
613 if (!pnp_res) {
614 if (!warned) {
615 dev_err(&dev->dev, "can't add resource for DMA %d\n",
616 dma);
617 warned = 1;
618 }
619 return NULL;
620 }
621
622 res = &pnp_res->res;
623 res->flags = IORESOURCE_DMA | flags;
624 res->start = dma;
625 res->end = dma;
626
627 dev_dbg(&dev->dev, " add dma %d flags %#x\n", dma, flags);
628 return pnp_res;
629}
630
605/* format is: pnp_reserve_irq=irq1[,irq2] .... */ 631/* format is: pnp_reserve_irq=irq1[,irq2] .... */
606static int __init pnp_setup_reserve_irq(char *str) 632static int __init pnp_setup_reserve_irq(char *str)
607{ 633{