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Message-Id: <20210113060703.3122661-1-drinkcat@chromium.org>
Date: Wed, 13 Jan 2021 14:06:59 +0800
From: Nicolas Boichat <drinkcat@...omium.org>
To: Rob Herring <robh@...nel.org>, Steven Price <steven.price@....com>,
Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>
Cc: Tomeu Vizoso <tomeu.vizoso@...labora.com>, fshao@...omium.org,
boris.brezillon@...labora.com, hsinyi@...omium.org,
hoegsberg@...omium.org, Nicolas Boichat <drinkcat@...omium.org>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-mediatek@...ts.infradead.org
Subject: [PATCH v10 0/4] drm/panfrost: Add support for mt8183 GPU
Hi!
Follow-up on the v5 [1], things have gotten significantly
better in the last 9 months, thanks to the efforts on Bifrost
support by the Collabora team (and probably others I'm not
aware of).
I've been testing this series on a MT8183/kukui device, with a
chromeos-5.10 kernel [2], and got basic Chromium OS UI up with
mesa 20.3.2 (lots of artifacts though).
devfreq is currently not supported, as we'll need:
- Clock core support for switching the GPU core clock (see 2/4).
- Platform-specific handling of the 2-regulator (see 3/4).
Since the latter is easy to detect, patch 3/4 just disables
devfreq if the more than one regulator is specified in the
compatible matching table.
[1] https://patchwork.kernel.org/project/linux-mediatek/cover/20200306041345.259332-1-drinkcat@chromium.org/
[2] https://crrev.com/c/2608070
Changes in v10:
- Fix the binding to make sure sram-supply property can be provided.
Changes in v9:
- Explain why devfreq needs to be disabled for GPUs with >1
regulators.
Changes in v8:
- Use DRM_DEV_INFO instead of ERROR
Changes in v7:
- Fix GPU ID in commit message
- Fix GPU ID in commit message
Changes in v6:
- Rebased, actually tested with recent mesa driver.
Nicolas Boichat (4):
dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183
arm64: dts: mt8183: Add node for the Mali GPU
drm/panfrost: devfreq: Disable devfreq when num_supplies > 1
drm/panfrost: Add mt8183-mali compatible string
.../bindings/gpu/arm,mali-bifrost.yaml | 28 +++++
arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 6 +
.../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 6 +
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 105 ++++++++++++++++++
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 ++
drivers/gpu/drm/panfrost/panfrost_drv.c | 10 ++
6 files changed, 164 insertions(+)
--
2.30.0.284.gd98b1dd5eaa7-goog
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