linux-kernel - Re: [PATCH 4/4] arm64: dts: qcom: sc8280xp: add missing spi nodes

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Date:   Tue, 13 Dec 2022 14:08:47 +0100
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Brian Masney <bmasney@...hat.com>,
        Shazad Hussain <quic_shazhuss@...cinc.com>,
        Mark Brown <broonie@...nel.org>
Cc:     andersson@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        konrad.dybcio@...aro.org, robh+dt@...nel.org,
        johan+linaro@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ahalaney@...hat.com, echanude@...hat.com, linux-spi@...r.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: qcom: sc8280xp: add missing spi nodes

Hello Krzysztof,

Long time no see :)

On 12/13/22 14:02, Krzysztof Kozlowski wrote:
> On 13/12/2022 13:27, Brian Masney wrote:

[...]

> 
> qcom,spi-video-codec is still not specific enough. You need to describe
> real device behind spidev. To be clear - you do not describe userspace,
> but the device.
> 

Agree.

I believe Brian just used "qcom,spi-video-codec" as an example but is only
a make up name to illustrate the concept. QC needs to determine what would
be the correct <vendor,device> tuple for the IP block that the user-space
driver will drive.

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat