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    SubjectRE: [PATCH v1] ARM: dts: imx6sl-evk: keep sw4 always on
    Date


    Anson Huang
    Best Regards!


    > -----Original Message-----
    > From: Fabio Estevam [mailto:festevam@gmail.com]
    > Sent: Monday, July 2, 2018 9:00 AM
    > To: Anson Huang <anson.huang@nxp.com>
    > Cc: Shawn Guo <shawnguo@kernel.org>; Robin Gong <yibin.gong@nxp.com>;
    > Mark Rutland <mark.rutland@arm.com>; open list:OPEN FIRMWARE AND
    > FLATTENED DEVICE TREE BINDINGS <devicetree@vger.kernel.org>;
    > linux-kernel <linux-kernel@vger.kernel.org>; Rob Herring
    > <robh+dt@kernel.org>; dl-linux-imx <linux-imx@nxp.com>; Sascha Hauer
    > <kernel@pengutronix.de>; Fabio Estevam <fabio.estevam@nxp.com>;
    > moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
    > <linux-arm-kernel@lists.infradead.org>
    > Subject: Re: [PATCH v1] ARM: dts: imx6sl-evk: keep sw4 always on
    >
    > Hi Anson,
    >
    > On Sun, Jul 1, 2018 at 9:57 PM, Anson Huang <anson.huang@nxp.com> wrote:
    >
    > > Just want to know how to handle such case? The kernel patch will never
    > > be applied or is there any way to make kernel patch and dtb patch
    > > applied together to avoid any breakage?
    >
    > We always want to avoid breaking a working dtb when it is used with a newer
    > kernel.
    >
    > In this case we need to revert the kernel patch as it causes regression with old
    > dtbs.

    So that mean such kind of kernel patch will never be into kernel? Even if it is a
    necessary patch for fixing some other issues? I just wonder how this case being
    handled.

    Anson.
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