kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

dmaengine: edma: predecence bug in GET_NUM_QDMACH()

Browse source 
The current code uses bits 0-2 instead of 4-6 as the comment says.

Fixes: 633e42b8c5 ('dmaengine: edma: Get qDMA channel information from HW also')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Dan Carpenter 2015-11-04 16:38:31 +03:00 committed by Vinod Koul
parent 638bdc8ce8
commit f5ea7ad252
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/dma/edma.c
View file

@ -107,7 +107,7 @@
/* CCCFG register */
#define GET_NUM_DMACH(x) (x & 0x7) /* bits 0-2 */
#define GET_NUM_QDMACH(x) (x & 0x70 >> 4) /* bits 4-6 */
#define GET_NUM_QDMACH(x) ((x & 0x70) >> 4) /* bits 4-6 */
#define GET_NUM_PAENTRY(x) ((x & 0x7000) >> 12) /* bits 12-14 */
#define GET_NUM_EVQUE(x) ((x & 0x70000) >> 16) /* bits 16-18 */
#define GET_NUM_REGN(x) ((x & 0x300000) >> 20) /* bits 20-21 */