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authorDavid Brownell <david-b@pacbell.net>2007-06-22 19:17:57 -0700
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-06-23 14:53:16 +0200
commit6b84bbfc7133ee493f3e9529a42b5ee53ea69dfe (patch)
tree6f3cb3157e248d0d716a1c47b5db5de497a89132 /arch/avr32
parent7f8b9acae8a76fcce5f4af0dfac735a1b7b4fdbf (diff)
downloadlinux-2.6.34-ux500-6b84bbfc7133ee493f3e9529a42b5ee53ea69dfe.tar.gz
[AVR32] Initialize dma_mask and dma_coherent_mask
The current at32ap7000 platform devices aren't declared as supporting DMA, so that layered drivers can't tell whether they need to manage DMA. This patch makes all those platform devices report that they support DMA. Most do, but in a few cases this is inappropriate. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/mach-at32ap/at32ap7000.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index 1d2bf347a1d..4dda42d3f6d 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -9,6 +9,7 @@
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
#include <linux/spi/spi.h>
#include <asm/io.h>
@@ -45,19 +46,30 @@
.flags = IORESOURCE_IRQ, \
}
+/* REVISIT these assume *every* device supports DMA, but several
+ * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
+ */
#define DEFINE_DEV(_name, _id) \
+static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
static struct platform_device _name##_id##_device = { \
.name = #_name, \
.id = _id, \
+ .dev = { \
+ .dma_mask = &_name##_id##_dma_mask, \
+ .coherent_dma_mask = DMA_32BIT_MASK, \
+ }, \
.resource = _name##_id##_resource, \
.num_resources = ARRAY_SIZE(_name##_id##_resource), \
}
#define DEFINE_DEV_DATA(_name, _id) \
+static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
static struct platform_device _name##_id##_device = { \
.name = #_name, \
.id = _id, \
.dev = { \
+ .dma_mask = &_name##_id##_dma_mask, \
.platform_data = &_name##_id##_data, \
+ .coherent_dma_mask = DMA_32BIT_MASK, \
}, \
.resource = _name##_id##_resource, \
.num_resources = ARRAY_SIZE(_name##_id##_resource), \