Re: [PATCH 3/3] arm64: dts: qcom: Add X1E78100 ThinkPad T14s Gen 6

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On Mon, Jul 22, 2024 at 08:00:19AM GMT, Rob Clark wrote:
> On Mon, Jul 22, 2024 at 3:11 AM Abel Vesa <abel.vesa@xxxxxxxxxx> wrote:
> >
> > On 24-07-22 10:42:57, Konrad Dybcio wrote:
> > > On 21.07.2024 6:40 PM, Abel Vesa wrote:
> > > > On 24-07-19 22:16:38, Konrad Dybcio wrote:
> > > >> Add support for the aforementioned laptop. That includes:
> > > >>
> > > >> - input methods, incl. lid switch (keyboard needs the pdc
> > > >>   wakeup-parent removal hack..)
> > > >> - NVMe, WiFi
> > > >> - USB-C ports
> > > >> - GPU, display
> > > >> - DSPs
> > > >>
> > > >> Notably, the USB-A ports on the side are depenedent on the USB
> > > >> multiport controller making it upstream.
> > > >>
> > > >> At least one of the eDP panels used (non-touchscreen) identifies as
> > > >> BOE 0x0b66.
> > > >>
> > > >> See below for the hardware description from the OEM.
> > > >>
> > > >> Link: https://www.lenovo.com/us/en/p/laptops/thinkpad/thinkpadt/lenovo-thinkpad-t14s-gen-6-(14-inch-snapdragon)/len101t0099
> > > >> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> > > >
> > > > Few comments below. Otherwise, LGTM.
> > > >
> > > > Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
> > > >
> > > >> ---
> > > >>  arch/arm64/boot/dts/qcom/Makefile                  |   1 +
> > > >>  .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts     | 792 +++++++++++++++++++++
> > > >>  2 files changed, 793 insertions(+)
> > > >>
> > > >> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> > > >> index 0e5c810304fb..734a05e04c4a 100644
> > > >> --- a/arch/arm64/boot/dts/qcom/Makefile
> > > >> +++ b/arch/arm64/boot/dts/qcom/Makefile
> > > >> @@ -261,6 +261,7 @@ dtb-$(CONFIG_ARCH_QCOM)        += sm8650-hdk-display-card.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += sm8650-hdk.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += sm8650-mtp.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += sm8650-qrd.dtb
> > > >> +dtb-$(CONFIG_ARCH_QCOM)   += x1e78100-lenovo-thinkpad-t14s.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += x1e80100-asus-vivobook-s15.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += x1e80100-crd.dtb
> > > >>  dtb-$(CONFIG_ARCH_QCOM)   += x1e80100-lenovo-yoga-slim7x.dtb
> > > >> diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
> > > >
> > > > So what happens for SKUs of this model wil have x1e80100 ?
> > > >
> > > > Maybe we should stick to x1e80100 ?
> > >
> > > This one only ships with 78100
> > >
> >
> > Sure, but then in upstream we only have 80100. Plus, it is included in
> > this file as well.
> >
> > I don't know what's the right thing to do here. But I think it keeps
> > things more simple if we keep everything under the x1e80100 umbrella.
> 
> plus sticking to x1e80100 will avoid angering tab completion :-P

This is an old argument, with no clear answer. For some devices we
choose to use correct SoC name (sda660-inforce-ifc6560). For other we
didn't (sdm845-db845c, which really is SDA845). However for most of the
devices the goal is to be accurate (think about all the qcs vs qcm
stories). So my 2c. would go to x1e78100.

-- 
With best wishes
Dmitry




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