linux-kernel - Re: [PATCH v5 0/2] Add Qualcomm Technologies, Inc. Talos EVK SMARC support

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Message-ID: <CAO9ioeX0ha31ouOEN2HqJdq8TY4B_Y87UxeBBgeuC0X_inQjSQ@mail.gmail.com>
Date: Thu, 6 Nov 2025 14:17:53 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Tessolve Upstream <tessolveupstream@...il.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 0/2] Add Qualcomm Technologies, Inc. Talos EVK SMARC support

On Thu, 6 Nov 2025 at 11:03, Tessolve Upstream
<tessolveupstream@...il.com> wrote:
>
>
>
> On 05/11/25 20:23, Dmitry Baryshkov wrote:
> > On Wed, Nov 05, 2025 at 06:27:42PM +0530, Tessolve Upstream wrote:
> >>
> >>
> >> On 05/11/25 06:35, Dmitry Baryshkov wrote:
> >>> On Tue, Nov 04, 2025 at 06:21:24PM +0530, Sudarshan Shetty wrote:
> >>>> Hi all,
> >>>>
> >>>> This patch series adds device tree binding and board support for the
> >>>> Qualcomm Technologies, Inc. Talos EVK SMARC platform based on the
> >>>> QCS615 SoC.
> >>>>
> >>>> The first patch introduces the DT binding entry for the Talos EVK
> >>>> SMARC board, and the second patch adds the corresponding DTS
> >>>> files for the platform.
> >>>>
> >>>> Note:
> >>>> USB(usb_1_dwc3) supports host-only mode based on the switch SW1 on
> >>>> the SoM, which is purely a hardware controlled as USB-ID and USB-VBUS
> >>>> is not connected the switching cannot be handled from SW.
> >>>> Hence from SW Host-only mode is supported on Linux boot up.
> >>>>
> >>>> Changes in v5:
> >>>>  - Updated commit message. (suggested by Krzysztof)
> >>>>  - Introduced generic node name for can, dp, hdmi-bridge. (suggested by
> >>>>    Krzysztof)
> >>>>  - Introduced talos-evk-cb.dtsi, which has common carrier board
> >>>>    interfaces.
> >>>
> >>> Common between what?
> >>
> >> Introduced talos-evk-cb.dtsi to define carrier board–specific interfaces
> >> common to both HDMI and LVDS top-level DTS variants.
> >
> > Are those two different carrier boards? Is it a single carrier board
> > with mezzanines? With extension boards? With a DIP switch?

Thank you for describing this in the cover letter and in the commit
message in the nextt revision.

>
> It’s a single carrier board.
> HDMI and LVDS share the same DSI interface, and only one can be active at
> a time depending on a DIP switch.
> >
>


-- 
With best wishes
Dmitry