From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Agner Subject: [PATCH 3/5] ARM: dts: imx7-colibri: allow to disable Ethernet rail Date: Wed, 29 Mar 2017 16:21:11 -0700 Message-ID: <20170329232113.19078-3-stefan@agner.ch> References: <20170329232113.19078-1-stefan@agner.ch> Return-path: In-Reply-To: <20170329232113.19078-1-stefan@agner.ch> Sender: linux-kernel-owner@vger.kernel.org To: shawnguo@kernel.org, kernel@pengutronix.de Cc: fabio.estevam@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Stefan Agner List-Id: devicetree@vger.kernel.org The regulator-always-on property on the Ethernet rail prevents Linux from disabling the rail when Ethernet is shut down (suspend or simply link down). With this change the regulator framework will disable the rail when the Ethernet PHY is not used, saving power especially on carrier board not using Ethernet. Signed-off-by: Stefan Agner --- arch/arm/boot/dts/imx7-colibri.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index 47eab920666f..cbcab937b905 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -181,7 +181,7 @@ reg_LDO1: LDO1 { /* PWR_EN_+V3.3_ETH */ regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; - regulator-always-on; + regulator-boot-on; }; reg_LDO2: LDO2 { /* +V1.8_SD */ -- 2.12.1