Commit 5a7faef7 authored by Christoph Hellwig's avatar Christoph Hellwig

sparc: set a default 32-bit dma mask for OF devices

This keeps the historic default behavior for devices without a DMA mask,
but removes the warning about a lacking DMA mask for doing DMA without
a mask.
Reported-by: default avatarMeelis Roos <mroos@linux.ee>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Tested-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent c1d0af1a
......@@ -9,6 +9,7 @@
#include <linux/irq.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/dma-mapping.h>
#include <asm/leon.h>
#include <asm/leon_amba.h>
......@@ -381,6 +382,9 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
else
dev_set_name(&op->dev, "%08x", dp->phandle);
op->dev.coherent_dma_mask = DMA_BIT_MASK(32);
op->dev.dma_mask = &op->dev.coherent_dma_mask;
if (of_device_register(op)) {
printk("%s: Could not register of device.\n",
dp->full_name);
......
......@@ -2,6 +2,7 @@
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/mod_devicetable.h>
......@@ -675,6 +676,8 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
dev_set_name(&op->dev, "root");
else
dev_set_name(&op->dev, "%08x", dp->phandle);
op->dev.coherent_dma_mask = DMA_BIT_MASK(32);
op->dev.dma_mask = &op->dev.coherent_dma_mask;
if (of_device_register(op)) {
printk("%s: Could not register of device.\n",
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment