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From: Baruch Siach <baruch@tkos.co.il>
To: Vinod Koul <vkoul@kernel.org>
Cc: Olof Johansson <olof@lixom.net>, Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: Reusing DTS from arm64 to arm
Date: Tue, 24 Nov 2020 07:38:15 +0200	[thread overview]
Message-ID: <87lferwbzs.fsf@tarshish> (raw)
In-Reply-To: <20201124052701.GF8403@vkoul-mobl>

Hi Vinod,

On Tue, Nov 24 2020, Vinod Koul wrote:
> 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..?

You might want to take a look at Raspberry Pi. For example:

arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts:
// SPDX-License-Identifier: GPL-2.0
#include "arm/bcm2837-rpi-3-b.dts"

baruch

> 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
>
> 2. Use relative path of arm64 directory and include that (seems not
> great to look at)
>
> 3. Copy the file (simplest but least preferred)
>
> Or is there a better idea to solve this...?
>
> [1]: arch/arm64/boot/dts/qcom/pm8150b.dtsi
>
> Thanks


-- 
                                                     ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -

WARNING: multiple messages have this Message-ID (diff)
From: Baruch Siach <baruch@tkos.co.il>
To: Vinod Koul <vkoul@kernel.org>
Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Olof Johansson <olof@lixom.net>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: Reusing DTS from arm64 to arm
Date: Tue, 24 Nov 2020 07:38:15 +0200	[thread overview]
Message-ID: <87lferwbzs.fsf@tarshish> (raw)
In-Reply-To: <20201124052701.GF8403@vkoul-mobl>

Hi Vinod,

On Tue, Nov 24 2020, Vinod Koul wrote:
> 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..?

You might want to take a look at Raspberry Pi. For example:

arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts:
// SPDX-License-Identifier: GPL-2.0
#include "arm/bcm2837-rpi-3-b.dts"

baruch

> 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
>
> 2. Use relative path of arm64 directory and include that (seems not
> great to look at)
>
> 3. Copy the file (simplest but least preferred)
>
> Or is there a better idea to solve this...?
>
> [1]: arch/arm64/boot/dts/qcom/pm8150b.dtsi
>
> Thanks


-- 
                                                     ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -

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  parent reply	other threads:[~2020-11-24  5:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-24  5:27 Reusing DTS from arm64 to arm Vinod Koul
2020-11-24  5:27 ` Vinod Koul
2020-11-24  5:36 ` Chen-Yu Tsai
2020-11-24  5:36   ` Chen-Yu Tsai
2020-11-24  5:44   ` Vinod Koul
2020-11-24  5:44     ` Vinod Koul
2020-11-24  5:38 ` Baruch Siach [this message]
2020-11-24  5:38   ` Baruch Siach

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