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Commit 1ac0e845 authored by Daniel Mack's avatar Daniel Mack Committed by Vinod Koul
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dma: mmp_pdma: fix maximum transfer length 



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: default avatarDaniel Mack <zonque@gmail.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 638a542c

drivers/dma/mmp_pdma.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */