From: "Guido Günther" <agx@sigxcpu.org>
To: "Rob Herring" <robh+dt@kernel.org>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
"NXP Linux Team" <linux-imx@nxp.com>,
"Angus Ainslie (Purism)" <angus@akkea.ca>,
"Martin Kepplinger" <martink@posteo.de>,
"Guido Günther" <agx@sigxcpu.org>,
"Abel Vesa" <abel.vesa@nxp.com>,
"Anson Huang" <Anson.Huang@nxp.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
Date: Tue, 21 Apr 2020 16:44:13 +0200 [thread overview]
Message-ID: <1a084c980fb5373f15b03ad83a404fc37eac085e.1587480093.git.agx@sigxcpu.org> (raw)
In-Reply-To: <cover.1587480093.git.agx@sigxcpu.org>
According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
when not overclocking to 1GHz (which we currently don't do).
Signed-off-by: Guido Günther <guido.gunther@puri.sm>
---
arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index 10eca94194be..0526ebf0da0f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -318,7 +318,7 @@ buck3_reg: BUCK3 {
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
- rohm,dvs-run-voltage = <1000000>;
+ rohm,dvs-run-voltage = <900000>;
};
buck4_reg: BUCK4 {
--
2.26.1
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next prev parent reply other threads:[~2020-04-21 14:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 14:44 [PATCH v2 0/2] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU Guido Günther
2020-04-21 14:44 ` Guido Günther [this message]
2020-04-21 14:44 ` [PATCH v2 2/2] arm64: dts: Don't use underscore in node name Guido Günther
2020-04-23 1:18 ` [PATCH v2 0/2] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU Shawn Guo
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