linux-kernel - [PATCH] net: phy: at803x: fix clock sink configuration on ATH8030 and ATH8035

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Message-Id: <20200401095732.23197-1-o.rempel@pengutronix.de>
Date:   Wed,  1 Apr 2020 11:57:32 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>,
        David Jander <david@...tonic.nl>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Fabio Estevam <festevam@...il.com>,
        kernel@...gutronix.de, Liam Girdwood <lgirdwood@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-imx@....com,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        netdev@...r.kernel.org,
        Philippe Schenker <philippe.schenker@...adex.com>
Subject: [PATCH] net: phy: at803x: fix clock sink configuration on ATH8030 and ATH8035

The masks in priv->clk_25m_reg and priv->clk_25m_mask are one-bits-set
for the values that comprise the fields, not zero-bits-set.

This patch fixes the clock frequency configuration for ATH8030 and
ATH8035 Atheros PHYs by removing the erroneous "~".

To reproduce this bug, configure the PHY  with the device tree binding
"qca,clk-out-frequency" and remove the machine specific PHY fixups.

Fixes: 2f664823a47021 ("net: phy: at803x: add device tree binding")
Reported-by: Russell King <linux@...linux.org.uk>
Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 drivers/net/phy/at803x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 481cf48c9b9e4..31f731e6df720 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -425,8 +425,8 @@ static int at803x_parse_dt(struct phy_device *phydev)
 		 */
 		if (at803x_match_phy_id(phydev, ATH8030_PHY_ID) ||
 		    at803x_match_phy_id(phydev, ATH8035_PHY_ID)) {
-			priv->clk_25m_reg &= ~AT8035_CLK_OUT_MASK;
-			priv->clk_25m_mask &= ~AT8035_CLK_OUT_MASK;
+			priv->clk_25m_reg &= AT8035_CLK_OUT_MASK;
+			priv->clk_25m_mask &= AT8035_CLK_OUT_MASK;
 		}
 	}
 
-- 
2.26.0.rc2