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[media] media: ti-vpe: vpdma: Fix bus error when vpdma is writing a descriptor 

On DRA7 since l3_noc event are being reported it was found that
when the write descriptor was being written it was consistently
causing bus error events.

The write address was improperly programmed.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Benoit Parrot 2016-11-18 21:20:14 -02:00 committed by Mauro Carvalho Chehab
parent 3f43554c0a
commit 4f36178188
1 changed files with 3 additions and 2 deletions
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5
drivers/media/platform/ti-vpe/vpdma_priv.h
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@ -212,6 +212,7 @@ struct vpdma_dtd {
#define DTD_V_START_MASK 0xffff
#define DTD_V_START_SHFT 0
#define DTD_DESC_START_MASK 0xffffffe0
#define DTD_DESC_START_SHIFT 5
#define DTD_WRITE_DESC_MASK 0x01
#define DTD_WRITE_DESC_SHIFT 2
@ -294,7 +295,7 @@ static inline u32 dtd_frame_width_height(int width, int height)
static inline u32 dtd_desc_write_addr(unsigned int addr, bool write_desc,
bool drop_data, bool use_desc)
{
return (addr << DTD_DESC_START_SHIFT) |
return (addr & DTD_DESC_START_MASK) |
(write_desc << DTD_WRITE_DESC_SHIFT) |
(drop_data << DTD_DROP_DATA_SHIFT) |
use_desc;
@ -399,7 +400,7 @@ static inline int dtd_get_frame_height(struct vpdma_dtd *dtd)
static inline int dtd_get_desc_write_addr(struct vpdma_dtd *dtd)
{
return dtd->desc_write_addr >> DTD_DESC_START_SHIFT;
return dtd->desc_write_addr & DTD_DESC_START_MASK;
}
static inline bool dtd_get_write_desc(struct vpdma_dtd *dtd)