X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpnp%2Fcore.c;h=3e20b1cc7778930f2477dc626fc281606b7e320b;hb=a9eea9ae6e82d1b0f453c24103a84ce7af5d1e15;hp=aec83ec5ea23f2471c55fbbe3dafd073b296c42e;hpb=8006fdd6dc387abaa4b683bda4868c879fd76070;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index aec83ec5ea2..3e20b1cc777 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
+#include <linux/dma-mapping.h>
 
 #include "base.h"
 
@@ -22,6 +23,14 @@ static LIST_HEAD(pnp_protocols);
 LIST_HEAD(pnp_global);
 DEFINE_SPINLOCK(pnp_lock);
 
+/*
+ * ACPI or PNPBIOS should tell us about all platform devices, so we can
+ * skip some blind probes.  ISAPNP typically enumerates only plug-in ISA
+ * devices, not built-in things like COM ports.
+ */
+int pnp_platform_devices;
+EXPORT_SYMBOL(pnp_platform_devices);
+
 void *pnp_alloc(long size)
 {
 	void *result;
@@ -114,6 +123,8 @@ int __pnp_add_device(struct pnp_dev *dev)
 	int ret;
 	pnp_fixup_device(dev);
 	dev->dev.bus = &pnp_bus_type;
+	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dma_mask = dev->dev.coherent_dma_mask = DMA_24BIT_MASK;
 	dev->dev.release = &pnp_release_device;
 	dev->status = PNP_READY;
 	spin_lock(&pnp_lock);