linux-kernel - Re: [PATCH] arm64: dts: qcom: Add Lenovo Miix 630

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Date:   Mon, 1 Apr 2019 08:13:38 -0600
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     bjorn.andersson@...aro.org, Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>, robh+dt@...nel.org,
        mark.rutland@....com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: Add Lenovo Miix 630

Hi Lee.

On Mon, Apr 1, 2019 at 4:52 AM Lee Jones <lee.jones@...aro.org> wrote:
>
> On Tue, 26 Mar 2019, Jeffrey Hugo wrote:
>
> > This adds the initial DT for the Lenovo Miix 630 laptop.  Supported
> > functionality includes USB (host), microSD-card, keyboard, and trackpad.
> >
> > Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
> > ---
> >  arch/arm64/boot/dts/qcom/Makefile             |   1 +
> >  arch/arm64/boot/dts/qcom/msm8998-cls.dtsi     | 278 ++++++++++++++++++
>
> What is cls?

Clamshell.  I left a comment in the file that is intended to clarify
this.  If one does some digging, they should find a fair number of
"cls" references within the firmware and windows.

>
> How much of this will be reusable with the other laptops?

The intent is that all the common stuff, which I expect is >90%, is in
the cls.dtsi so that we don't have multiple copies of it.  Variances,
such as the SD detect GPIO stuff we've discovered would be in the
individual dtb.  Or at-least, that is the idea.  I'm open to
suggestions.

I'm unable to post dts files based on the HP/Asus at this time, but
hopefully that changes soon.  Otherwise, Its my goal that this
provides a good framework for adding those devices.

>
> >  .../boot/dts/qcom/msm8998-lenovo-miix-630.dts |  33 +++
> >  3 files changed, 312 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/qcom/msm8998-cls.dtsi
> >  create mode 100644 arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
>
> --
> Lee Jones [李琼斯]
> Linaro Services Technical Lead
> Linaro.org │ Open source software for ARM SoCs
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