From: Geert Uytterhoeven Date: Mon, 4 Dec 2017 10:34:51 +0000 (+0100) Subject: arm64: dts: renesas: salvator-common: Add EthernetAVB PHY reset X-Git-Tag: v4.16-rc1~100^2~36^2~9 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=f5bbcd533a9d1af97b8a0862a421bb8455f1bf6d;p=linux.git arm64: dts: renesas: salvator-common: Add EthernetAVB PHY reset Describe the GPIO used to reset the Ethernet PHY for EthernetAVB. This allows the driver to reset the PHY during probe and after system resume. This fixes Ethernet operation after resume from s2ram on Salvator-XS, where the enable pin of the regulator providing PHY power is connected to PRESETn, and PSCI powers down the SoC during system suspend. On Salvator-X, the enable pin is always pulled high, but the driver may still need to reset the PHY if this wasn't done by the bootloader before. Inspired by patches in the BSP for the individual Salvator-X/XS boards by Kazuya Mizuguchi. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi index b9505a65a793..4e800e933944 100644 --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi @@ -264,6 +264,7 @@ phy0: ethernet-phy@0 { reg = <0>; interrupt-parent = <&gpio2>; interrupts = <11 IRQ_TYPE_LEVEL_LOW>; + reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>; }; };