From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Tue, 13 Dec 2016 20:14:59 +0100 Subject: [PATCH 6/6] ARM: dts: sun8i: raise the max voltage of DCDC2 in sun8i reference tablets In-Reply-To: <20161213152252.53749-7-icenowy@aosc.xyz> References: <20161213152252.53749-1-icenowy@aosc.xyz> <20161213152252.53749-7-icenowy@aosc.xyz> Message-ID: <20161213191459.mmoejcmf26qqtyze@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Dec 13, 2016 at 11:22:52PM +0800, Icenowy Zheng wrote: > The "extremity_freq" frequency described in the original FEX files uses > a voltage of 1.46v, which is beyond the current maximum voltage value of > DCDC2 (Cortex-A7 supply) in the sun8i reference tablet DTSI file. > > Raise the maximum value to 1.46v. > > Signed-off-by: Icenowy Zheng > --- > arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi > index 7ac8bb4bc95a..325ca5bd67a5 100644 > --- a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi > +++ b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi > @@ -180,7 +180,7 @@ > ®_dcdc2 { > regulator-always-on; > regulator-min-microvolt = <900000>; > - regulator-max-microvolt = <1400000>; > + regulator-max-microvolt = <1460000>; This is outside of the voltage range tolerated by the CPU. NAK. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: not available URL: