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

From: AngeloGioacchino Del Regno
Date: Tue Jul 05 2022 - 11:01:52 EST


Il 05/07/22 15:56, Nícolas F. R. A. Prado ha scritto:
On Tue, Jul 05, 2022 at 12:03:08PM +0800, Chen-Yu Tsai wrote:
On Fri, Jul 1, 2022 at 11:01 PM Nícolas F. R. A. Prado
<nfraprado@xxxxxxxxxxxxx> wrote:

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@xxxxxxxxxxxxx> 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 see. I think the internal display part is more or less final. It should
be worth including it, as it is a fairly visible indication that things
are working.

Yeah, it is final, but not all of the display-related nodes in mt8192.dtsi have
been merged yet [1] and I didn't want to introduce dependencies to the series.

If that series gets merged before this one, I could add the display to this
series as well, but I'm just worried that by introducing new commits with almost
every new series version, this series might never get reviewed and merged, and
this series is pretty big already. So I'd prefer to leave the display for a
following series.

Thanks,
Nícolas

[1] https://lore.kernel.org/all/20220701090547.21429-1-allen-kh.cheng@xxxxxxxxxxxx


Matthias, can you please give an advice on that?

Thank you,
Angelo



ChenYu

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@xxxxxxxxxxxxxx/
[2] https://lore.kernel.org/dri-devel/20220622173605.1168416-1-pmalani@xxxxxxxxxxxx/

v3: https://lore.kernel.org/all/20220512205602.158273-1-nfraprado@xxxxxxxxxxxxx/
v2: https://lore.kernel.org/all/20220505194550.3094656-1-nfraprado@xxxxxxxxxxxxx/
v1: https://lore.kernel.org/all/20220316151327.564214-1-nfraprado@xxxxxxxxxxxxx/

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

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