The RXFC register is the only one being read using 8-bit accessors.
To make it easier to support the 16-bit accesses used by the parallel
bus variant of KS8851, use 16-bit accessor to read RXFC register as
well as neighboring RXFCTR register.
Remove ks8851_rdreg8() as it is not used anywhere anymore.
There should be no functional change.
Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: David S. Miller <da...@davemloft.net>
Cc: Lukas Wunner <lu...@wunner.de>
Cc: Petr Stetiar <yn...@true.cz>
Cc: YueHaibing <yuehaib...@huawei.com>
---
V2: No change
V3: No change
V4: Drop the NOTE from the comment, the performance is OK
V5: No change
V6: No change
---
drivers/net/ethernet/micrel/ks8851.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/micrel/ks8851.c
b/drivers/net/ethernet/micrel/ks8851.c
index 1b81340e811f..e2e75041e931 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -236,21 +236,6 @@ static void ks8851_rdreg(struct ks8851_net *ks, unsigned
op,
memcpy(rxb, trx + 2, rxl);
}
-/**
- * ks8851_rdreg8 - read 8 bit register from device
- * @ks: The chip information
- * @reg: The register address
- *
- * Read a 8bit register from the chip, returning the result
-*/
-static unsigned ks8851_rdreg8(struct ks8851_net *ks, unsigned reg)
-{
- u8 rxb[1];
-
- ks8851_rdreg(ks, MK_OP(1 << (reg & 3), reg), rxb, 1);
- return rxb[0];
-}
-
/**
* ks8851_rdreg16 - read 16 bit register from device
* @ks: The chip information
@@ -470,7 +455,7 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
unsigned rxstat;
u8 *rxpkt;
- rxfc = ks8851_rdreg8(ks, KS_RXFC);
+ rxfc = (ks8851_rdreg16(ks, KS_RXFCTR) >> 8) & 0xff;
netif_dbg(ks, rx_status, ks->netdev,
"%s: %d packets\n", __func__, rxfc);
--
2.25.1
