Commit c63749a7 authored by Marek Vasut's avatar Marek Vasut Committed by Shawn Guo
Browse files

arm64: dts: imx8mp: Fix LAN8740Ai PHY reference clock on DH electronics i.MX8M Plus DHCOM 



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
bedd8d78 ("net: phy: smsc: LAN8710/20: add phy refclk in support")

Fixes: 8d671269 ("arm64: dts: imx8mp: Add support for DH electronics i.MX8M Plus DHCOM and PDK2")
Signed-off-by: default avatarMarek Vasut <marek.vasut@mailbox.org>
Tested-by: default avatarChristoph Niedermaier <cniedermaier@dh-electronics.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent cdf4e631

arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ mdio { 
		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>;