Re: [PATCH v30 0/7] Add MediaTek SoC DRM (vdosys1) support for mt8195

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On Mon, Mar 27, 2023 at 11:17 PM Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> wrote:
>
> Hi, Angelo:
>
> AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> 於
> 2023年3月24日 週五 下午4:38寫道:
> >
> > Il 24/03/23 00:25, Chun-Kuang Hu ha scritto:
> > > Hi, Angelo:
> > >
> > > AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> 於
> > > 2023年3月23日 週四 下午4:58寫道:
> > >>
> > >> Il 21/03/23 13:18, Nancy.Lin ha scritto:
> > >>> The hardware path of vdosys1 with DPTx output need to go through by several modules, such as, OVL_ADAPTOR and MERGE.
> > >>>
> > >>> Add DRM and these modules support by the patches below:
> > >>>
> > >>
> > >> I've tested v30 again on MT8173, MT8192 and MT8195 based Chromebooks.
> > >> Green light from me.
> > >
> > > I'm curious about how you build code and test on Chromebooks. Do you
> > > build in cros environment or pure linux
> > > (https://archlinuxarm.org/platforms/armv8/mediatek/acer-chromebook-r13).
> > > I've a MT8183 based Chromebook (HP 11a) and I've tried to run a
> > > upstream kernel on it. cros is too heavy for me and I doubt I could
> > > use it. I've tried the pure linux and could boot up with console, but
> > > display does not work. If you use the pure linux environment, could
> > > you share how it works?
> > >
> >
> > I haven't tested MT8183 (I don't actually have any 8183 machine in my hands)... but
> > yes, I can share my test environment.
> >
> > I have one MicroSD that I use either in the MicroSD slot of the target machine, or
> > in a USB reader; this *single* system is what I boot on *all* Chromebooks that I
> > have: one kernel, multiple devicetrees, same Debian-based userspace.
> >
> > What we have to prepare this bootable media can be found at [1], but beware that
> > it currently uses an outdated kernel, so, what I have locally is a symlink to my
> > kernel tree.
> > You can change/add/remove the devicetree blobs that will get added to the image
> > by modifying `chromebook-setup.sh`; before tampering with kernel tree symlink,
> > please run that script for the first time, as it will download a cross-compiler,
> > a kernel tree (that you will replace for sure) and the (very old) Debian rootfs
> > that you can update with `apt-get dist-upgrade` after booting the Chromebook.
> >
> > If you want to check about possible kernel configuration differences, what I use
> > is at [2], so that you can compare.
>
> Thanks for the information, I would try to compare the kernel config first.

Hi CK,

Would you consider adding your repo to linux-next? That would let everyone
do integration testing, especially automated ones, earlier, before you send
your PRs to drm maintainers.

You can do so by sending an email to Stephen Rothwell to do so.


ChenYu

> >
> > [1]: https://gitlab.collabora.com/google/chromebooks/-/tree/mtk-av1
> > [2]:
> > https://gitlab.collabora.com/google/chromeos-kernel/-/blob/mt8195-tracking-master-rolling/arch/arm64/configs/defconfig
> >
> > Regards,
> > Angelo




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