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SubjectRe: [PATCH 3/3] arm64: dts: mediatek: mt8365-pumpkin: Add overlays for thp7312 cameras
On Fri, Sep 08, 2023 at 03:52:22PM -0500, Rob Herring wrote:
> On Wed, Sep 06, 2023 at 08:31:18AM +0900, Paul Elder wrote:
> > Add overlays for the Pumpkin i350 to support THP7312 cameras.
> >
> > Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> > ---
> > arch/arm64/boot/dts/mediatek/Makefile | 4 +
> > .../mt8365-pumpkin-common-thp7312.dtsi | 23 ++++++
> > .../mt8365-pumpkin-csi0-thp7312-imx258.dtso | 73 +++++++++++++++++++
> > .../mt8365-pumpkin-csi1-thp7312-imx258.dtso | 73 +++++++++++++++++++
> > 4 files changed, 173 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8365-pumpkin-common-thp7312.dtsi
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8365-pumpkin-csi0-thp7312-imx258.dtso
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8365-pumpkin-csi1-thp7312-imx258.dtso
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
> > index 20570bc40de8..ceaf24105001 100644
> > --- a/arch/arm64/boot/dts/mediatek/Makefile
> > +++ b/arch/arm64/boot/dts/mediatek/Makefile
> > @@ -56,4 +56,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8365-evk.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8365-pumpkin.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb
> >
> > +mtk-mt8365-pumpkin-dtbs := mt8365-pumpkin.dtb mt8365-pumpkin-csi0-thp7312-imx258.dtbo
> > +mtk-mt8365-pumpkin-dtbs := mt8365-pumpkin.dtb mt8365-pumpkin-csi1-thp7312-imx258.dtbo
> > mtk-mt8365-pumpkin-dtbs := mt8365-pumpkin.dtb mt8365-pumpkin-ethernet-usb.dtbo
>
> This has no effect. You are assigning the same variable 3 times. It
> needs to be every overlay applied to its base is a *-dtbs variable and
> then those are all added to 'dtb-y'. IOW, we don't allow overlays which
> can't be applied at build time.
>
> Assuming the overlays aren't mutually exclusive, you could do:
>
> mtk-mt8365-pumpkin-dtbs := mt8365-pumpkin.dtb mt8365-pumpkin-ethernet-usb.dtbo
> mtk-mt8365-pumpkin-dtbs += mt8365-pumpkin-csi0-thp7312-imx258.dtbo
> mtk-mt8365-pumpkin-dtbs += mt8365-pumpkin-csi1-thp7312-imx258.dtbo
>
> This works the same way as '-objs' variables to group .o files into a
> module.
>
> > +
> > +dtb-$(CONFIG_ARCH_MEDIATEK) += mtk-mt8365-pumpkin.dtb
>
> Looks like mtk-mt8365-pumpkin.dtb failed to get built before. In any
> case, that's a terrible name. What's the difference between
> mt8365-pumpkin.dtb and mtk-mt8365-pumpkin.dtb? There's no clue.

That's a bad name indeed. The cover letter indicates that this patch
depends on currently out-of-tree DT changes, including a
work-in-progress commit that adds mt8365-pumpkin-ethernet-usb.dtbo. The
commits order makes this patch look weird.

Paul, in your v2, please indicate in the commit message of this patch
that it isn't intended to be merged yet. A "[DNI]" prefix in the subject
line will help.

--
Regards,

Laurent Pinchart

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