dmaengine: pl330: Remove duplicated cachecontrol enum

The settings for destination and source cache control are exactly the same. This
patch removes the duplicated enum and uses the same for both destination and
source cache control.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/pl330.c

@@ -33,26 +33,15 @@
 #define PL330_MAX_IRQS		32
 #define PL330_MAX_PERI		32
 
-enum pl330_srccachectrl {
-	SCCTRL0,	/* Noncacheable and nonbufferable */
-	SCCTRL1,	/* Bufferable only */
-	SCCTRL2,	/* Cacheable, but do not allocate */
-	SCCTRL3,	/* Cacheable and bufferable, but do not allocate */
-	SINVALID1,
-	SINVALID2,
-	SCCTRL6,	/* Cacheable write-through, allocate on reads only */
-	SCCTRL7,	/* Cacheable write-back, allocate on reads only */
-};
-
-enum pl330_dstcachectrl {
-	DCCTRL0,	/* Noncacheable and nonbufferable */
-	DCCTRL1,	/* Bufferable only */
-	DCCTRL2,	/* Cacheable, but do not allocate */
-	DCCTRL3,	/* Cacheable and bufferable, but do not allocate */
-	DINVALID1,	/* AWCACHE = 0x1000 */
-	DINVALID2,
-	DCCTRL6,	/* Cacheable write-through, allocate on writes only */
-	DCCTRL7,	/* Cacheable write-back, allocate on writes only */
+enum pl330_cachectrl {
+	CCTRL0,		/* Noncacheable and nonbufferable */
+	CCTRL1,		/* Bufferable only */
+	CCTRL2,		/* Cacheable, but do not allocate */
+	CCTRL3,		/* Cacheable and bufferable, but do not allocate */
+	INVALID1,	/* AWCACHE = 0x1000 */
+	INVALID2,
+	CCTRL6,		/* Cacheable write-through, allocate on writes only */
+	CCTRL7,		/* Cacheable write-back, allocate on writes only */
 };
 
 enum pl330_byteswap {
@@ -337,8 +326,8 @@ struct pl330_reqcfg {
 	unsigned brst_len:5;
 	unsigned brst_size:3; /* in power of 2 */
 
-	enum pl330_dstcachectrl dcctl;
-	enum pl330_srccachectrl scctl;
+	enum pl330_cachectrl dcctl;
+	enum pl330_cachectrl scctl;
 	enum pl330_byteswap swap;
 	struct pl330_config *pcfg;
 };
@@ -1490,14 +1479,14 @@ static inline u32 _prepare_ccr(const struct pl330_reqcfg *rqc)
 
 static inline bool _is_valid(u32 ccr)
 {
-	enum pl330_dstcachectrl dcctl;
-	enum pl330_srccachectrl scctl;
+	enum pl330_cachectrl dcctl;
+	enum pl330_cachectrl scctl;
 
 	dcctl = (ccr >> CC_DSTCCTRL_SHFT) & CC_DRCCCTRL_MASK;
 	scctl = (ccr >> CC_SRCCCTRL_SHFT) & CC_SRCCCTRL_MASK;
 
-	if (dcctl == DINVALID1 || dcctl == DINVALID2
-			|| scctl == SINVALID1 || scctl == SINVALID2)
+	if (dcctl == INVALID1 || dcctl == INVALID2
+			|| scctl == INVALID1 || scctl == INVALID2)
 		return false;
 	else
 		return true;
@@ -2485,8 +2474,8 @@ static inline void _init_desc(struct dma_pl330_desc *desc)
 	desc->req.x = &desc->px;
 	desc->req.token = desc;
 	desc->rqcfg.swap = SWAP_NO;
-	desc->rqcfg.scctl = SCCTRL0;
-	desc->rqcfg.dcctl = DCCTRL0;
+	desc->rqcfg.scctl = CCTRL0;
+	desc->rqcfg.dcctl = CCTRL0;
 	desc->req.cfg = &desc->rqcfg;
 	desc->req.xfer_cb = dma_pl330_rqcb;
 	desc->txd.tx_submit = pl330_tx_submit;