Re: [PATCH v6 3/5] arm64: dts: qcom: Add Lenovo Miix 630

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On Fri, Jun 14, 2019 at 6:44 AM Rob Clark <robdclark@xxxxxxxxx> wrote:
>
> On Thu, Jun 13, 2019 at 10:17 AM Jeffrey Hugo <jeffrey.l.hugo@xxxxxxxxx> 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@xxxxxxxxx>
> > ---
>
> [snip]
>
> > diff --git a/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts b/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
> > new file mode 100644
> > index 000000000000..407c6a32911c
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
> > @@ -0,0 +1,30 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/* Copyright (c) 2019, Jeffrey Hugo. All rights reserved. */
> > +
> > +/dts-v1/;
> > +
> > +#include "msm8998-clamshell.dtsi"
> > +
> > +/ {
> > +       model = "Lenovo Miix 630";
> > +       compatible = "lenovo,miix-630", "qcom,msm8998";
> > +};
>
>
> So, I'm not sure if there is some precedent for this (but maybe we
> haven't really had this problem before).. but as I mentioned on
> #arch64-laptops, I think we should put vendor/product/board-id strings
> from SMBIOS table in the dts files.  That could be used by grub to
> find the correct dtb file to load in a generic way.  (Ie, look for a
> match of all three strings, and maybe fallback to a match on just
> vendor+product??)
>
> At any rate, how the strings are used can be refined later.  But I
> think we should include the strings from the beginning for anything
> that is booting via UEFI.  It's perhaps more useful than the
> compatible string.
>


perhaps something like:

   dmi-compatible = "LENOVO 81JL/LNVNB161216", "LENOVO 81JL";

??

(well, those are the strings from my yoga c630, not sure what they are
on the miix 630.. but you get the idea)

BR,
-R



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