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[04/12] dma: mmp_pdma: fix maximum transfer length

Message ID 1375870770-14263-5-git-send-email-zonque@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Daniel Mack Aug. 7, 2013, 10:19 a.m. UTC
There's no reason for limiting the maximum transfer length to 0x1000.
Take the actual bit mask instead; the PDMA is able to transfer chunks of
up to SZ_8K - 1.

Signed-off-by: Daniel Mack <zonque@gmail.com>
---
 drivers/dma/mmp_pdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 8d6aae3..1fe78d8 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -71,7 +71,7 @@ 
 #define DCMD_LENGTH	0x01fff		/* length mask (max = 8K - 1) */
 
 #define PDMA_ALIGNMENT		3
-#define PDMA_MAX_DESC_BYTES	0x1000
+#define PDMA_MAX_DESC_BYTES	DCMD_LENGTH
 
 struct mmp_pdma_desc_hw {
 	u32 ddadr;	/* Points to the next descriptor + flags */