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-rw-r--r--arch/arm/common/amba.c2
-rw-r--r--arch/arm/common/dmabounce.c36
-rw-r--r--arch/arm/common/sa1111.c13
-rw-r--r--arch/arm/common/sharpsl_param.c2
4 files changed, 30 insertions, 23 deletions
diff --git a/arch/arm/common/amba.c b/arch/arm/common/amba.c
index a0507f8..c6beb75 100644
--- a/arch/arm/common/amba.c
+++ b/arch/arm/common/amba.c
@@ -169,7 +169,7 @@ static void amba_device_release(struct device *dev)
}
#define amba_attr(name,fmt,arg...) \
-static ssize_t show_##name(struct device *_dev, char *buf) \
+static ssize_t show_##name(struct device *_dev, struct device_attribute *attr, char *buf) \
{ \
struct amba_device *dev = to_amba_device(_dev); \
return sprintf(buf, fmt, arg); \
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 5797b1b..cbf2165 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -30,6 +30,8 @@
#include <linux/dmapool.h>
#include <linux/list.h>
+#include <asm/cacheflush.h>
+
#undef DEBUG
#undef STATS
@@ -91,15 +93,12 @@ static void print_alloc_stats(struct dmabounce_device_info *device_info)
static inline struct dmabounce_device_info *
find_dmabounce_dev(struct device *dev)
{
- struct list_head *entry;
-
- list_for_each(entry, &dmabounce_devs) {
- struct dmabounce_device_info *d =
- list_entry(entry, struct dmabounce_device_info, node);
+ struct dmabounce_device_info *d;
+ list_for_each_entry(d, &dmabounce_devs, node)
if (d->dev == dev)
return d;
- }
+
return NULL;
}
@@ -170,15 +169,11 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
static inline struct safe_buffer *
find_safe_buffer(struct dmabounce_device_info *device_info, dma_addr_t safe_dma_addr)
{
- struct list_head *entry;
-
- list_for_each(entry, &device_info->safe_buffers) {
- struct safe_buffer *b =
- list_entry(entry, struct safe_buffer, node);
+ struct safe_buffer *b;
+ list_for_each_entry(b, &device_info->safe_buffers, node)
if (b->safe_dma_addr == safe_dma_addr)
return b;
- }
return NULL;
}
@@ -299,15 +294,26 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
__func__, buf->ptr, (void *) virt_to_dma(dev, buf->ptr),
buf->safe, (void *) buf->safe_dma_addr);
-
DO_STATS ( device_info->bounce_count++ );
- if ((dir == DMA_FROM_DEVICE) ||
- (dir == DMA_BIDIRECTIONAL)) {
+ if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) {
+ unsigned long ptr;
+
dev_dbg(dev,
"%s: copy back safe %p to unsafe %p size %d\n",
__func__, buf->safe, buf->ptr, size);
memcpy(buf->ptr, buf->safe, size);
+
+ /*
+ * DMA buffers must have the same cache properties
+ * as if they were really used for DMA - which means
+ * data must be written back to RAM. Note that
+ * we don't use dmac_flush_range() here for the
+ * bidirectional case because we know the cache
+ * lines will be coherent with the data written.
+ */
+ ptr = (unsigned long)buf->ptr;
+ dmac_clean_range(ptr, ptr + size);
}
free_safe_buffer(device_info, buf);
}
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 21fce34..38c2eb6 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -721,16 +721,17 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
return ret;
}
+static int sa1111_remove_one(struct device *dev, void *data)
+{
+ device_unregister(dev);
+ return 0;
+}
+
static void __sa1111_remove(struct sa1111 *sachip)
{
- struct list_head *l, *n;
void __iomem *irqbase = sachip->base + SA1111_INTC;
- list_for_each_safe(l, n, &sachip->dev->children) {
- struct device *d = list_to_dev(l);
-
- device_unregister(d);
- }
+ device_for_each_child(sachip->dev, NULL, sa1111_remove_one);
/* disable all IRQs */
sa1111_writel(0, irqbase + SA1111_INTEN0);
diff --git a/arch/arm/common/sharpsl_param.c b/arch/arm/common/sharpsl_param.c
index c2c557a..c94864c 100644
--- a/arch/arm/common/sharpsl_param.c
+++ b/arch/arm/common/sharpsl_param.c
@@ -22,7 +22,7 @@
* them early in the boot process, then pass them to the appropriate drivers.
* Not all devices use all paramaters but the format is common to all.
*/
-#ifdef ARCH_SA1100
+#ifdef CONFIG_ARCH_SA1100
#define PARAM_BASE 0xe8ffc000
#else
#define PARAM_BASE 0xa0000a00
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