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

From: [email-masked] (Daniel Mack)
Date: Wed, 7 Aug 2013 12:19:22 +0200

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 <[email-masked]>
---
 drivers/dma/mmp_pdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 */
-- 
1.8.3.1