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dmaengine: edma: predecence bug in GET_NUM_QDMACH()

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

Fixes: 633e42b8c546 ('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>
Dan Carpenter 9 年之前
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共有 1 個文件被更改,包括 1 次插入1 次删除
  1. 1 1
      drivers/dma/edma.c

+ 1 - 1
drivers/dma/edma.c

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