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Received: from shell.armlinux.org.uk ([2002:4e20:1eda:1:5054:ff:fe00:4ec]:59668) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ip8fD-0006UG-S2; Wed, 08 Jan 2020 10:34:12 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1ip8f9-0007tY-P4; Wed, 08 Jan 2020 10:34:07 +0000 Date: Wed, 8 Jan 2020 10:34:07 +0000 From: Russell King - ARM Linux admin To: Marco Felsch Subject: Re: [PATCH v2 1/3] ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage Message-ID: <20200108103407.GL25745@shell.armlinux.org.uk> References: <20200108101057.29599-1-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200108101057.29599-1-m.felsch@pengutronix.de> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200108_023631_619642_6F1A7DF9 X-CRM114-Status: GOOD ( 15.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: s.riedmueller@phytec.de, s.christ@phytec.de, chf.fritz@googlemail.com, robh+dt@kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, c.hemp@phytec.de, shawnguo@kernel.org, festevam@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jan 08, 2020 at 11:10:55AM +0100, Marco Felsch wrote: > The current set minimum voltage of 730000mV seems to be wrong. I don't mV =3D milli-volt, /1000th of a volt. So you just said 730V. =B5V or uV =3D micro-volt, which I think is what you mean here. > know the document which specifies that but the imx6qdl datasheets says > that the minimum voltage should be 0.925V for VDD_ARM (LDO bypassed, > lowest opp) and 1.15V for VDD_SOC (LDO bypassed, lowest opp). > = > Fixes: ddec5d1c0047 ("ARM: dts: imx6: Add initial support for phyCORE-i.M= X 6 SOM") > Signed-off-by: Marco Felsch > --- > v2: > - use ldo bypassed values > - adapt commit message > = > arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > = > diff --git a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi b/arch/arm= /boot/dts/imx6qdl-phytec-phycore-som.dtsi > index 6486df3e2942..f23eef1e54e0 100644 > --- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi > @@ -107,14 +107,14 @@ > regulators { > vdd_arm: buck1 { > regulator-name =3D "vdd_arm"; > - regulator-min-microvolt =3D <730000>; > + regulator-min-microvolt =3D <925000>; > regulator-max-microvolt =3D <1380000>; > regulator-always-on; > }; > = > vdd_soc: buck2 { > regulator-name =3D "vdd_soc"; > - regulator-min-microvolt =3D <730000>; > + regulator-min-microvolt =3D <1150000>; > regulator-max-microvolt =3D <1380000>; > regulator-always-on; > }; > -- = > 2.20.1 > = > = > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > = -- = RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps = up According to speedtest.net: 11.9Mbps down 500kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel