From dc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 28 Apr 2008 16:34:35 -0600 Subject: 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 Signed-off-by: Len Brown --- drivers/pnp/resource.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'drivers/pnp/resource.c') diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index 082a556b9dc..2a8612e31ab 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) { -- cgit v1.2.3-70-g09d2