linux-kernel - Re: [PATCH v4 00/19] Introduce support for MediaTek MT8192 Google Chromebooks

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Message-ID: <20220701150145.2myyk2o3vxydyhql@notapiano>
Date:   Fri, 1 Jul 2022 11:01:45 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Chen-Yu Tsai <wenst@...omium.org>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, kernel@...labora.com,
        Allen-KH Cheng <allen-kh.cheng@...iatek.com>,
        Fabien Parent <fparent@...libre.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Luca Weiss <luca@...tu.xyz>, Maxim Kutnij <gtk3@...ox.ru>,
        Rob Herring <robh+dt@...nel.org>,
        Sam Shih <sam.shih@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v4 00/19] Introduce support for MediaTek MT8192 Google
 Chromebooks

On Fri, Jul 01, 2022 at 08:44:53PM +0800, Chen-Yu Tsai wrote:
> On Thu, Jun 30, 2022 at 12:00 AM Nícolas F. R. A. Prado
> <nfraprado@...labora.com> wrote:
> >
> >
> > This series introduces Devicetrees for the MT8192-based Asurada platform
> > as well as Asurada Spherion and Asurada Hayato boards.
> >
> > Support for the boards is added to the extent that is currently enabled
> > in the mt8192.dtsi, and using only properties already merged in the
> > dt-bindings, as to not add any dependencies to this series.
> >
> > This series was peer-reviewed internally before submission.
> >
> > Series tested on next-20220629.
> 
> Just FYI I also got the internal display to work after some fixes to
> the dtsi [1] and copying the stuff over from the ChromeOS kernel tree.
> 
> It might be harder to enable the external display, given that we don't
> have a good way of describing the weird design of using the DP bridge
> also as a mux. See [2] for ongoing discussion.

Hi ChenYu,

I actually have both the internal and external display working on my local
branch [1], but the commits there aren't final, and I'm also following the
Type-C switch discussion to update my commits whenever the binding is settled
on.

I noticed the lack of the mandatory display aliases in the mt8192 series but
somehow missed mentioning that in the review, so thanks for adding that.

Thanks,
Nícolas

[1] https://gitlab.collabora.com/nfraprado/linux/-/commits/mt8192-asurada

> 
> ChenYu
> 
> [1] https://lore.kernel.org/linux-mediatek/CAGXv+5F_Gi_=vV1NSk0AGRVYCa3Q8+gBaE+nv3OJ1AKe2voOwg@mail.gmail.com/
> [2] https://lore.kernel.org/dri-devel/20220622173605.1168416-1-pmalani@chromium.org/
> 
> > v3: https://lore.kernel.org/all/20220512205602.158273-1-nfraprado@collabora.com/
> > v2: https://lore.kernel.org/all/20220505194550.3094656-1-nfraprado@collabora.com/
> > v1: https://lore.kernel.org/all/20220316151327.564214-1-nfraprado@collabora.com/
> >
> > Changes in v4:
> > - Added patches 17-19 enabling MMC, SCP and SPI NOR flash
> > - Switched mediatek,drive-strength-adv for drive-strength-microamp
> > - Switched mediatek,pull-up-adv for bias-pull-up
> > - Updated Vgpu minimum voltage to appropriate value
> >
> > Changes in v3:
> > - Renamed regulator nodes to be generic
> > - Fixed keyboard layout for Hayato
> >
> > Changes in v2:
> > - Added patches 1-2 for Mediatek board dt-bindings
> > - Added patches 13-16 enabling hardware for Asurada that has since been
> >   enabled on mt8192.dtsi
> >
> > Nícolas F. R. A. Prado (19):
> >   dt-bindings: arm64: dts: mediatek: Add mt8192-asurada-spherion
> >   dt-bindings: arm64: dts: mediatek: Add mt8192-asurada-hayato
> >   arm64: dts: mediatek: Introduce MT8192-based Asurada board family
> >   arm64: dts: mediatek: asurada: Document GPIO names
> >   arm64: dts: mediatek: asurada: Add system-wide power supplies
> >   arm64: dts: mediatek: asurada: Enable and configure I2C and SPI busses
> >   arm64: dts: mediatek: asurada: Add ChromeOS EC
> >   arm64: dts: mediatek: asurada: Add keyboard mapping for the top row
> >   arm64: dts: mediatek: asurada: Add Cr50 TPM
> >   arm64: dts: mediatek: asurada: Add Elan eKTH3000 I2C trackpad
> >   arm64: dts: mediatek: asurada: Add I2C touchscreen
> >   arm64: dts: mediatek: spherion: Add keyboard backlight
> >   arm64: dts: mediatek: asurada: Enable XHCI
> >   arm64: dts: mediatek: asurada: Enable PCIe and add WiFi
> >   arm64: dts: mediatek: asurada: Add MT6359 PMIC
> >   arm64: dts: mediatek: asurada: Add SPMI regulators
> >   arm64: dts: mediatek: asurada: Enable MMC
> >   arm64: dts: mediatek: asurada: Enable SCP
> >   arm64: dts: mediatek: asurada: Add SPI NOR flash memory
> >
> >  .../devicetree/bindings/arm/mediatek.yaml     |  13 +
> >  arch/arm64/boot/dts/mediatek/Makefile         |   2 +
> >  .../dts/mediatek/mt8192-asurada-hayato-r1.dts |  47 +
> >  .../mediatek/mt8192-asurada-spherion-r0.dts   |  62 ++
> >  .../boot/dts/mediatek/mt8192-asurada.dtsi     | 959 ++++++++++++++++++
> >  5 files changed, 1083 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
> >  create mode 100644 arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts
> >  create mode 100644 arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> >
> > --
> > 2.36.1
> >