diff options
| author | Benoit Parrot <bparrot@ti.com> | 2016-11-19 02:20:14 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-22 11:27:30 +0300 |
| commit | 4f36178188e0b33ea594e3d4849f407e40f8149d (patch) | |
| tree | 9b3d742e6b6edc861175463ebfe08978b6558262 /drivers/media | |
| parent | 3f43554c0a3c2a311f484b9131a7b9edf183f6e0 (diff) | |
| download | linux-4f36178188e0b33ea594e3d4849f407e40f8149d.tar.xz | |
[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>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/ti-vpe/vpdma_priv.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/platform/ti-vpe/vpdma_priv.h b/drivers/media/platform/ti-vpe/vpdma_priv.h index 65f0c067bed1..aeade5edc8ac 100644 --- a/drivers/media/platform/ti-vpe/vpdma_priv.h +++ b/drivers/media/platform/ti-vpe/vpdma_priv.h @@ -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) |