linux-kernel - Re: [PATCH v8 5/6] arm64: dts: mt8195: Add efuse node to mt8195

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Date:   Mon, 1 Aug 2022 09:57:01 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Balsam CHIHI <bchihi@...libre.com>
Cc:     rafael@...nel.org, rui.zhang@...el.com, daniel.lezcano@...aro.org,
        amitk@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, khilman@...libre.com,
        mka@...omium.org, robh+dt@...nel.org, krzk+dt@...nel.org,
        matthias.bgg@...il.com, p.zabel@...gutronix.de,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, james.lo@...iatek.com,
        fan.chen@...iatek.com, louis.yu@...iatek.com,
        rex-bc.chen@...iatek.com, abailon@...libre.com
Subject: Re: [PATCH v8 5/6] arm64: dts: mt8195: Add efuse node to mt8195

On Mon, Aug 01, 2022 at 02:33:31PM +0200, Balsam CHIHI wrote:
> On Fri, Jul 29, 2022 at 10:14 PM Nícolas F. R. A. Prado
> <nfraprado@...labora.com> wrote:
> >
> > On Tue, Jul 26, 2022 at 03:55:05PM +0200, Balsam CHIHI wrote:
> > > This adds the efuse node. This will be required by the thermal driver
> > > to get the calibration data.
> > >
> > > Signed-off-by: Alexandre Bailon <abailon@...libre.com>
> > > Signed-off-by: Balsam CHIHI <bchihi@...libre.com>
> > > ---
> > >  arch/arm64/boot/dts/mediatek/mt8195.dtsi | 16 ++++++++++++++++
> > >  1 file changed, 16 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > > index 0ff34edcf8c8..4fbf24b5d202 100644
> > > --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > > +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > > @@ -1236,6 +1236,22 @@ nor_flash: spi@...2c000 {
> > >                       status = "disabled";
> > >               };
> > >
> > > +             efuse: efuse@...10000 {
> > > +                     compatible = "mediatek,efuse";
> > > +                     reg = <0 0x11c10000 0 0x1000>;
> > > +                     #address-cells = <1>;
> > > +                     #size-cells = <1>;
> > > +                     lvts_efuse_data1: lvts1-calib@1bc {
> > > +                             reg = <0x1bc 0x14>;
> > > +                     };
> > > +                     lvts_efuse_data2: lvts2-calib@1d0 {
> > > +                             reg = <0x1d0 0x38>;
> > > +                     };
> > > +                     svs_calibration: calib@580 {
> > > +                             reg = <0x580 0x64>;
> > > +                     };
> > > +             };
> > > +
> >
> > This commit doesn't apply, there's already an efuse node on mt8195.dtsi. Please
> > rebase.
> >
> > Thanks,
> > Nícolas
> 
> Hello Nícolas,
> 
> Thank you so much for the review.
> I rebased on top of the latest kernel version "linux-5.19.0" but I
> can't find efuse node on mt8195.dtsi.
> But, this node is indeed present on mt8192.dtsi.

Hi Balsam,

no I'm really talking about mt8195. For the dts patches in the series you should
base on top of Matthias' -next/dts64 branch [1]. And there you can see the efuse
node on mt8195 [2].

Thanks,
Nícolas

[1] https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/log/?h=v5.19-next/dts64
[2] https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=v5.19-next/dts64&id=ab43a84c9863b65dc20373d5aca4e4d012aa852e