linux-kernel - Re: [PATCH v4 10/11] arm64: dts: mt7986: add Bananapi R3

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Message-ID: <CAL_JsqLrgj97gCSvN7_WbHck5zpJECfVicUhV1P2cw0GONO_Sw@mail.gmail.com>
Date:   Fri, 18 Nov 2022 15:44:27 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     frank-w@...lic-files.de
Cc:     Daniel Golle <daniel@...rotopia.org>,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        Ryder Lee <ryder.lee@...iatek.com>,
        Bo Jiao <Bo.Jiao@...iatek.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org,
        Kishon Vijay Abraham I <kishon@...com>,
        Jianjun Wang <jianjun.wang@...iatek.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 10/11] arm64: dts: mt7986: add Bananapi R3

On Wed, Nov 16, 2022 at 3:07 AM Frank Wunderlich
<frank-w@...lic-files.de> wrote:
>
> Am 15. November 2022 23:01:20 MEZ schrieb Daniel Golle <daniel@...rotopia.org>:
>
>
> >The device can boot from all 4 storage options. Both, SPI and MMC, can
> >be switched using hardware switches on the board, see
> >https://wiki.banana-pi.org/Banana_Pi_BPI-R3#Jumper_setting
> >
> >So why do the SPI-NAND vs. SPI-NOR switching with device tree overlays
> >and the SD card vs. eMMC switching with dtsi + 2x dts? To me this looks
> >inconsitent. Use either one or the other method.
>
> Hi Daniel
>
> It is still in discussion,if mainline-kernel will support devicetree-overlays [1].

No it's not. We're just in the middle of renaming overlay .dts files
to .dtso. Overlays have been supported for the last 1.5 years.

Rob