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path: root/drivers/memory/renesas-rpc-if.c
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Diffstat (limited to 'drivers/memory/renesas-rpc-if.c')
-rw-r--r--drivers/memory/renesas-rpc-if.c31
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index 019a0822bde0..4316988d791a 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -259,8 +259,7 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
rpc->dev = dev;
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
- rpc->base = devm_ioremap_resource(&pdev->dev, res);
+ rpc->base = devm_platform_ioremap_resource_byname(pdev, "regs");
if (IS_ERR(rpc->base))
return PTR_ERR(rpc->base);
@@ -488,7 +487,7 @@ int rpcif_manual_xfer(struct rpcif *rpc)
case RPCIF_DATA_OUT:
while (pos < rpc->xferlen) {
u32 bytes_left = rpc->xferlen - pos;
- u32 nbytes, data[2];
+ u32 nbytes, data[2], *p = data;
smcr = rpc->smcr | RPCIF_SMCR_SPIE;
@@ -502,15 +501,9 @@ int rpcif_manual_xfer(struct rpcif *rpc)
rpc->xfer_size = nbytes;
memcpy(data, rpc->buffer + pos, nbytes);
- if (nbytes == 8) {
- regmap_write(rpc->regmap, RPCIF_SMWDR1,
- data[0]);
- regmap_write(rpc->regmap, RPCIF_SMWDR0,
- data[1]);
- } else {
- regmap_write(rpc->regmap, RPCIF_SMWDR0,
- data[0]);
- }
+ if (nbytes == 8)
+ regmap_write(rpc->regmap, RPCIF_SMWDR1, *p++);
+ regmap_write(rpc->regmap, RPCIF_SMWDR0, *p);
regmap_write(rpc->regmap, RPCIF_SMCR, smcr);
ret = wait_msg_xfer_end(rpc);
@@ -552,7 +545,7 @@ int rpcif_manual_xfer(struct rpcif *rpc)
}
while (pos < rpc->xferlen) {
u32 bytes_left = rpc->xferlen - pos;
- u32 nbytes, data[2];
+ u32 nbytes, data[2], *p = data;
/* nbytes may only be 1, 2, 4, or 8 */
nbytes = bytes_left >= max ? max : (1 << ilog2(bytes_left));
@@ -569,15 +562,9 @@ int rpcif_manual_xfer(struct rpcif *rpc)
if (ret)
goto err_out;
- if (nbytes == 8) {
- regmap_read(rpc->regmap, RPCIF_SMRDR1,
- &data[0]);
- regmap_read(rpc->regmap, RPCIF_SMRDR0,
- &data[1]);
- } else {
- regmap_read(rpc->regmap, RPCIF_SMRDR0,
- &data[0]);
- }
+ if (nbytes == 8)
+ regmap_read(rpc->regmap, RPCIF_SMRDR1, p++);
+ regmap_read(rpc->regmap, RPCIF_SMRDR0, p);
memcpy(rpc->buffer + pos, data, nbytes);
pos += nbytes;