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From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net-next 1/2] net: r6040: Use logical or for MDIO operations
Date: Sun, 23 May 2021 08:54:10 -0700	[thread overview]
Message-ID: <20210523155411.11185-2-f.fainelli@gmail.com> (raw)
In-Reply-To: <20210523155411.11185-1-f.fainelli@gmail.com>

This is not a functional change, but we should be using a logical or to
assign the bits we will be writing to the MDIO read and write registers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/ethernet/rdc/r6040.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/rdc/r6040.c b/drivers/net/ethernet/rdc/r6040.c
index 7c74318620b1..aff68e2cb700 100644
--- a/drivers/net/ethernet/rdc/r6040.c
+++ b/drivers/net/ethernet/rdc/r6040.c
@@ -200,7 +200,7 @@ static int r6040_phy_read(void __iomem *ioaddr, int phy_addr, int reg)
 	int limit = MAC_DEF_TIMEOUT;
 	u16 cmd;
 
-	iowrite16(MDIO_READ + reg + (phy_addr << 8), ioaddr + MMDIO);
+	iowrite16(MDIO_READ | reg | (phy_addr << 8), ioaddr + MMDIO);
 	/* Wait for the read bit to be cleared */
 	while (limit--) {
 		cmd = ioread16(ioaddr + MMDIO);
@@ -224,7 +224,7 @@ static int r6040_phy_write(void __iomem *ioaddr,
 
 	iowrite16(val, ioaddr + MMWD);
 	/* Write the command to the MDIO bus */
-	iowrite16(MDIO_WRITE + reg + (phy_addr << 8), ioaddr + MMDIO);
+	iowrite16(MDIO_WRITE | reg | (phy_addr << 8), ioaddr + MMDIO);
 	/* Wait for the write bit to be cleared */
 	while (limit--) {
 		cmd = ioread16(ioaddr + MMDIO);
-- 
2.25.1


  reply	other threads:[~2021-05-23 15:54 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-23 15:54 [PATCH net-next 0/2] net: r6040: Non-functional changes Florian Fainelli
2021-05-23 15:54 ` Florian Fainelli [this message]
2021-05-23 15:54 ` [PATCH net-next 2/2] net: r6040: Use ETH_FCS_LEN Florian Fainelli
2021-05-24  0:30 ` [PATCH net-next 0/2] net: r6040: Non-functional changes patchwork-bot+netdevbpf

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