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From: Vinod Koul <vkoul@kernel.org>
To: David S Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Niklas Cassel <niklas.cassel@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Vinod Koul <vkoul@kernel.org>, Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH v2 4/5] net: phy: at803x: Disable phy delay for RGMII mode
Date: Tue,  8 Jan 2019 21:59:25 +0530
Message-ID: <20190108162926.17806-5-vkoul@kernel.org> (raw)
In-Reply-To: <20190108162926.17806-1-vkoul@kernel.org>

For RGMII mode, phy delay should be disabled. Add this case along
with disable delay routines.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 drivers/net/phy/at803x.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index f9432d053a22..e7cf1d5b0514 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -122,6 +122,18 @@ static inline int at803x_enable_tx_delay(struct phy_device *phydev)
 					AT803X_DEBUG_TX_CLK_DLY_EN);
 }
 
+static inline int at803x_disable_rx_delay(struct phy_device *phydev)
+{
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+				     AT803X_DEBUG_RX_CLK_DLY_EN, 0);
+}
+
+static inline int at803x_disable_tx_delay(struct phy_device *phydev)
+{
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_5,
+				     AT803X_DEBUG_TX_CLK_DLY_EN, 0);
+}
+
 /* save relevant PHY registers to private copy */
 static void at803x_context_save(struct phy_device *phydev,
 				struct at803x_context *context)
@@ -269,6 +281,15 @@ static int at803x_config_init(struct phy_device *phydev)
 			return ret;
 	}
 
+	if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
+		ret = at803x_disable_rx_delay(phydev);
+		if (ret < 0)
+			return ret;
+		ret = at803x_disable_tx_delay(phydev);
+		if (ret < 0)
+			return ret;
+	}
+
 	return 0;
 }
 
-- 
2.20.1

  parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-08 16:29 [PATCH v2 0/5] net: Add support for Qualcomm ethqos Vinod Koul
2019-01-08 16:29 ` [PATCH v2 1/5] dt-bindings: net: Add Qualcomm ethqos binding Vinod Koul
2019-01-15 21:03   ` Rob Herring
2019-01-17  4:03     ` Vinod Koul
2019-01-08 16:29 ` [PATCH v2 2/5] net: stmmac: Add driver for Qualcomm ethqos Vinod Koul
2019-01-08 16:29 ` [PATCH v2 3/5] MAINTAINER: Add entry for Qualcomm ETHQOS ethernet driver Vinod Koul
2019-01-08 16:29 ` Vinod Koul [this message]
2019-01-08 17:59   ` [PATCH v2 4/5] net: phy: at803x: Disable phy delay for RGMII mode Florian Fainelli
2019-01-09  4:35     ` Vinod Koul
2019-01-08 16:29 ` [PATCH v2 5/5] net: dsa: qca8k: disable " Vinod Koul
2019-01-08 18:00   ` Florian Fainelli
2019-01-09  4:43     ` Vinod Koul

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