[PATCH] ISA: set 24-bit dma_mask for ISA devices.

[Rene Herman <rene.herman@keyaccess.nl>]

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On 31-05-08 00:11, Rene Herman wrote:

[ PNP: set the pnp_card dma_mask for use by ISAPnP cards. ]

> Thanks. I'll assume Andrew picks it up from the CC...

And here's the ISA one...

Rene.

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>From 35f30388ad8536860719b3b44ea1f232b95ba42b Mon Sep 17 00:00:00 2001
From: Rene Herman <rene.herman@gmail.com>
Date: Sat, 31 May 2008 00:31:40 +0200
Subject: [PATCH] ISA: set 24-bit dma_mask for ISA devices.

Set the ISA device dma_mask in preparation for using the actual device
with the DMA API.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
---
 drivers/base/isa.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/base/isa.c b/drivers/base/isa.c
index d222239..efd5775 100644
--- a/drivers/base/isa.c
+++ b/drivers/base/isa.c
@@ -7,6 +7,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/dma-mapping.h>
 #include <linux/isa.h>
 
 static struct device isa_bus = {
@@ -141,6 +142,9 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev)
 		isa_dev->dev.release		= isa_dev_release;
 		isa_dev->id			= id;
 
+		isa_dev->dev.coherent_dma_mask = DMA_24BIT_MASK;
+		isa_dev->dev.dma_mask = &isa_dev->dev.coherent_dma_mask;
+
 		error = device_register(&isa_dev->dev);
 		if (error) {
 			put_device(&isa_dev->dev);
-- 
1.5.2.2


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