linux-kernel - Re: Reusing DTS from arm64 to arm

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Message-ID: <20201124054456.GG8403@vkoul-mobl>
Date:   Tue, 24 Nov 2020 11:14:56 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Chen-Yu Tsai <wens@...nel.org>
Cc:     Olof Johansson <olof@...om.net>, Rob Herring <robh+dt@...nel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: Reusing DTS from arm64 to arm

Hello Chen-Yu,

On 24-11-20, 13:36, Chen-Yu Tsai wrote:
> Hi,
> 
> On Tue, Nov 24, 2020 at 1:28 PM Vinod Koul <vkoul@...nel.org> wrote:
> >
> > Hello Olof, Rob,
> >
> > We have Qualcomm arm platform which uses PMIC PM8150B. This PMIC was
> > also used in SM8150 board and is already upstream [1] but in arm64.
> >
> > So, what is the guidance to share DTS files between 32 and 64 variants?
> > Does a solution already exist which I may not be aware of..?
> >
> > I can think of following options for this, in case we dont have a
> > solution:
> >
> > 1. Hack up arm include paths to also include arm64 path so that we can
> > share DTS
> 
> These are already provided. See scripts/dtc/include-prefixes/ .
> 
> So just put
> 
> #include <arm64/qcom/pm8150b.dtsi>
> 
> in your DTS and it should work?

It does work, thank you for pointing me to this

-- 
~Vinod