[PATCH linux dev-5.4 1/3] fsi: master: Remove link enable read-back

[Eddie James]

Both the Aspeed and hub masters read back the link enable register
after enabling the link, but this is unnecessary, so remove it.

Signed-off-by: Eddie James <eajames at linux.ibm.com>
---
 drivers/fsi/fsi-master-aspeed.c | 11 +----------
 drivers/fsi/fsi-master-hub.c    |  6 +++---
 2 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/fsi/fsi-master-aspeed.c b/drivers/fsi/fsi-master-aspeed.c
index fe2da6f90590..0c04656208a6 100644
--- a/drivers/fsi/fsi-master-aspeed.c
+++ b/drivers/fsi/fsi-master-aspeed.c
@@ -306,7 +306,7 @@ static int aspeed_master_link_enable(struct fsi_master *master, int link)
 {
 	struct fsi_master_aspeed *aspeed = to_fsi_master_aspeed(master);
 	int idx, bit, ret;
-	__be32 reg, result;
+	__be32 reg;
 
 	idx = link / 32;
 	bit = link % 32;
@@ -319,15 +319,6 @@ static int aspeed_master_link_enable(struct fsi_master *master, int link)
 
 	mdelay(FSI_LINK_ENABLE_SETUP_TIME);
 
-	ret = opb_readl(aspeed, ctrl_base + FSI_MENP0 + (4 * idx), &result);
-	if (ret)
-		return ret;
-
-	if (result != reg) {
-		dev_err(aspeed->dev, "%s failed: %08x\n", __func__, result);
-		return -EIO;
-	}
-
 	return 0;
 }
 
diff --git a/drivers/fsi/fsi-master-hub.c b/drivers/fsi/fsi-master-hub.c
index def35cf92571..f89c25d68b5a 100644
--- a/drivers/fsi/fsi-master-hub.c
+++ b/drivers/fsi/fsi-master-hub.c
@@ -90,12 +90,12 @@ static int hub_master_link_enable(struct fsi_master *master, int link)
 	reg = cpu_to_be32(0x80000000 >> bit);
 
 	rc = fsi_device_write(hub->upstream, FSI_MSENP0 + (4 * idx), &reg, 4);
+	if (rc)
+		return rc;
 
 	mdelay(FSI_LINK_ENABLE_SETUP_TIME);
 
-	fsi_device_read(hub->upstream, FSI_MENP0 + (4 * idx), &reg, 4);
-
-	return rc;
+	return 0;
 }
 
 static void hub_master_release(struct device *dev)
-- 
2.24.0