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

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Hi, Chen-yu:

Chen-Yu Tsai <wenst@xxxxxxxxxxxx> 於 2023年3月30日 週四 下午7:05寫道:
>
> 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 it currently uses an outdated kernel, so, what I have locally is a symlink to my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.

I don't understand what this process is. Does it means that I directly
upstream patches into linux-next? I prefer that my patches go through
drm maintainers' tree. Does any document introduce this process?


Regards,
Chun-Kuang.

>
>
> 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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