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Date:   Mon, 27 Nov 2023 17:29:19 +0100
From:   Maxime Ripard <mripard@kernel.org>
To:     Linus Walleij <linus.walleij@linaro.org>
Cc:     Liu Ying <victor.liu@nxp.com>, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org, linux-next@vger.kernel.org,
        sfr@canb.auug.org.au, gregkh@linuxfoundation.org,
        rafael@kernel.org, andrzej.hajda@intel.com,
        neil.armstrong@linaro.org, rfoss@kernel.org,
        Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se,
        jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com,
        tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch,
        angelogioacchino.delregno@collabora.com, ulf.hansson@linaro.org
Subject: Re: [PATCH v2 0/2] drm/bridge: panel: Check device dependency before
 managing device link
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References: <20231127051414.3783108-1-victor.liu@nxp.com>
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On Mon, Nov 27, 2023 at 05:03:53PM +0100, Linus Walleij wrote:
> On Mon, Nov 27, 2023 at 6:10=E2=80=AFAM Liu Ying <victor.liu@nxp.com> wro=
te:
>=20
> > This series aims to check panel device dependency upon DRM device before
> > managing device link between them.  It fixes eariler patches in v6.7-rc1
> > which tried to manage the link.  Without this series, the link fails to
> > be added for dependent panel devices and hence relevant panel bridges
> > fail to be attached.  A real broken panel is "novatek,nt35510" defined
> > in arch/arm/boot/dts/st/ste-ux500-samsung-skomer.dts as reported by
> > Linus Walleij.
> >
> > Patch 1 exports device_is_dependent() to modules as needed by patch 2.
> > Patch 2 checks device dependency before managing the device link.
> >
> > Note that patch 2 is already in drm-misc/drm-misc-fixes and
> > drm-misc/for-linux-next-fixes.  Patch 1 needs to be reviewed and picked=
 up.
> >
> > v2:
> > * Introduce patch 1 to export device_is_dependent() to modules as neede=
d by
> >   patch 2.
> >
> > Liu Ying (2):
> >   driver core: Export device_is_dependent() to modules
> >   drm/bridge: panel: Check device dependency before managing device link
>=20
> I just applied patch 1 directly to the drm-misc-fixes so we don't have to
> revert and then re-apply patches, because that is a bigger evil. (We can't
> rebase these branches...)

Erm, you did wait for GKH or Rafael's ACK to do that, right?

Maxime

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