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

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Message-ID: <9d5de3b8-29d0-4202-a361-4bcbfa166755@gmail.com>
Date: Thu, 6 Nov 2025 14:33:10 +0530
From: Tessolve Upstream <tessolveupstream@...il.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.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 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?

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.
>