linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: Add support for QCS615 talos evk board

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Message-ID: <42b297e8-b7ab-4527-962d-7689f7efcbdf@gmail.com>
Date: Mon, 15 Sep 2025 17:53:06 +0530
From: Tessolve Upstream <tessolveupstream@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: konradybcio@...nel.org, andersson@...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,
 tingweiz@....qualcomm.com
Subject: Re: [PATCH 2/2] arm64: dts: qcom: Add support for QCS615 talos evk
 board



On 09/09/25 19:35, Krzysztof Kozlowski wrote:
> On 09/09/2025 16:02, Dmitry Baryshkov wrote:
>> On Tue, Sep 09, 2025 at 06:22:55PM +0530, Sudarshan Shetty wrote:
>>> Introduce the device tree support for the QCS615-based talos-evk
>>> platform, which follows the SMARC (Smart Mobility ARChitecture)
>>> standard. The platform is composed of two main hardware
>>> components: the IQ-QCS615-SOM and the talos-evk carrier board.
>>>
>>> The IQ-QCS615-SOM is a compact System on Module that integrates the
>>> QCS615 SoC, PMIC, and essential GPIO connectivity. It follows the
>>> SMARC standard, which defines a modular form factor allowing the SoM
>>> to be paired with different carrier boards for varied applications.
>>>
>>> The talos-evk is one such carrier board, designed for evaluation
>>> and development purposes. It provides additional peripherals
>>> such as UART, USB, and other interfaces to enable rapid
>>> prototyping and hardware bring-up.
>>>
>>> This initial device tree provides the basic configuration needed
>>> to boot the platform to a UART shell. Further patches will extend
>>> support for additional peripherals and subsystems.
>>>
>>> The initial device tree includes basic support for:
>>>
>>> - CPU and memory
>>>
>>> - UART
>>>
>>> - GPIOs
>>>
>>> - Regulators
>>>
>>> - PMIC
>>>
>>> - Early console
>>>
>>> - AT24MAC602 EEPROM
>>>
>>> - MCP2515 SPI to CAN
>>>
>>> Signed-off-by: Sudarshan Shetty <tessolveupstream@...il.com>
>>> ---
>>>
>>> This series depend on the below patch changes
>>> https://lore.kernel.org/linux-arm-msm/20250625063213.1416442-1-quic_ziyuzhan@quicinc.com/T/#t
>>> https://lore.kernel.org/all/20241224-fix-board-clocks-v3-0-e9b08fbeadd3@linaro.org/
>>> https://lore.kernel.org/linux-arm-msm/20250604-qcs615-sm6150-v1-0-2f01fd46c365@oss.qualcomm.com/T/#t
> 
> Huge dependency list... basically unmergeable. But some of these were
> applied months ago, so you claiming there is dependency is just
> misleading. Or you are working on some old, downstream fork... In such
> case it would be NAK.
Thanks — you’re right. I mistakenly listed patches as dependencies that are already merged. I’ll rebase
this series on top of current upstream/qcom, remove merged entries from the cover letter, and resend
a cleaned-up series.>>> ---
>>>  arch/arm64/boot/dts/qcom/Makefile        |   1 +
>>>  arch/arm64/boot/dts/qcom/qcs615-som.dtsi | 414 +++++++++++++++++++++++
>>>  arch/arm64/boot/dts/qcom/talos-evk.dts   |  42 +++
>>>  3 files changed, 457 insertions(+)
>>>  create mode 100644 arch/arm64/boot/dts/qcom/qcs615-som.dtsi
>>>  create mode 100644 arch/arm64/boot/dts/qcom/talos-evk.dts
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
>>> index 4bfa926b6a08..588dc55995c5 100644
>>> --- a/arch/arm64/boot/dts/qcom/Makefile
>>> +++ b/arch/arm64/boot/dts/qcom/Makefile
>>> @@ -117,6 +117,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= qcm6490-shift-otter.dtb
>>>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-1000.dtb
>>>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
>>>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs615-ride.dtb
>>> +dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk.dtb
>>>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-rb3gen2.dtb
>>
>> BTW, 'talos' > 'qsc6490'. I think the list is expected to be sorted.
> Yes it is.
> 
> Best regards,
> Krzysztof