linux-kernel - Re: [PATCH v2 03/13] arm64: dts: qcom: sdm845-lg-judyln: Add battery and charger

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Message-ID: <CABN5=wHEGyCOc5XoON=oVFUJUPaAn3B1QQDvP+ZZPYi+ULitpg@mail.gmail.com>
Date: Wed, 17 Sep 2025 21:44:38 -0400
From: Chris Brown <crispybrown@...il.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Paul Sajna <sajattack@...tmarketos.org>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	David Heidelberg <david@...t.cz>, linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org, 
	Amir Dahan <system64fumo@...tonmail.com>
Subject: Re: [PATCH v2 03/13] arm64: dts: qcom: sdm845-lg-judyln: Add battery
 and charger

Source https://github.com/EmanuelCN/android_kernel_lge_sdm845/blob/U/arch/arm64/boot/dts/lge/sdm845-battery/LGE_BLT39_LGC_3000mAh.dtsi
Small assumption on my part that "fg-cutoff-voltage" has the same
meaning as "voltage-min-design-microvolt"

On Wed, 17 Sept 2025 at 09:47, Konrad Dybcio
<konrad.dybcio@....qualcomm.com> wrote:
>
> On 9/17/25 3:09 AM, Paul Sajna wrote:
> > From: Christopher Brown <crispybrown@...il.com>
> >
> > Values based on lineageos kernel
>
> A link for reference would be nice to see
>
> >
> > Signed-off-by: Christopher Brown <crispybrown@...il.com>
> > ---
> >  arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts | 13 +++++++++++++
> >  1 file changed, 13 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> > index 49225e4fa80e5f45a36964d5d733dc238e4413f8..be488891d0ab01c5bfd3762514fbf1c3bbf6845a 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> > +++ b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> > @@ -37,6 +37,14 @@ key-thinq {
> >                       interrupts = <89 IRQ_TYPE_LEVEL_LOW>;
> >               };
> >       };
> > +
> > +     battery: battery {
> > +             compatible = "simple-battery";
> > +
> > +             charge-full-design-microamp-hours = <3000000>;
> > +             voltage-min-design-microvolt = <3200000>;
>
> 3.2 is rather low.. are you sure?
>
> Konrad