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authorMarek Vasut <marek.vasut@mailbox.org>2025-12-02 14:41:51 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-01-17 16:35:21 +0100
commit4977cac699a47fcabb9f25f8ff391ed7d01714c2 (patch)
treeea2f1d45b0fd443ce1d1c3cec1d148f3f051ed3d
parent5b5ef7049ebed65de138ce0106fcfd4ea8f31c3a (diff)
arm64: dts: imx8mp: Fix LAN8740Ai PHY reference clock on DH electronics i.MX8M Plus DHCOM
[ Upstream commit c63749a7ddc59ac6ec0b05abfa0a21af9f2c1d38 ] Add missing 'clocks' property to LAN8740Ai PHY node, to allow the PHY driver to manage LAN8740Ai CLKIN reference clock supply. This fixes sporadic link bouncing caused by interruptions on the PHY reference clock, by letting the PHY driver manage the reference clock and assure there are no interruptions. This follows the matching PHY driver recommendation described in commit bedd8d78aba3 ("net: phy: smsc: LAN8710/20: add phy refclk in support") Fixes: 8d6712695bc8 ("arm64: dts: imx8mp: Add support for DH electronics i.MX8M Plus DHCOM and PDK2") Signed-off-by: Marek Vasut <marek.vasut@mailbox.org> Tested-by: Christoph Niedermaier <cniedermaier@dh-electronics.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
index 68c2e0156a5c..f8303b7e2bd2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
@@ -113,6 +113,7 @@
ethphy0f: ethernet-phy@1 { /* SMSC LAN8740Ai */
compatible = "ethernet-phy-id0007.c110",
"ethernet-phy-ieee802.3-c22";
+ clocks = <&clk IMX8MP_CLK_ENET_QOS>;
interrupt-parent = <&gpio3>;
interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
pinctrl-0 = <&pinctrl_ethphy0>;