From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh@kernel.org>,
Steven Price <steven.price@arm.com>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
Tomeu Vizoso <tomeu.vizoso@collabora.com>,
fshao@chromium.org, David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
boris.brezillon@collabora.com,
linux-mediatek@lists.infradead.org,
dri-devel@lists.freedesktop.org, hsinyi@chromium.org,
Matthias Brugger <matthias.bgg@gmail.com>,
hoegsberg@chromium.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v11 0/4] drm/panfrost: Add support for mt8183 GPU
Date: Tue, 26 Jan 2021 09:17:55 +0800 [thread overview]
Message-ID: <20210126011759.1605641-1-drinkcat@chromium.org> (raw)
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 v11:
- binding: power-domain-names not power-domainS-names
- mt8183*.dts: remove incorrect supply-names
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.
- Add gpu regulators to kukui dtsi as well.
- Power domains are now attached to spm, not scpsys
- Drop R-B.
- devfreq: New change
- Context conflicts, reflow the code.
- Use ARRAY_SIZE for power domains too.
Changes in v5:
- Rename "2d" power domain to "core2"
- Rename "2d" power domain to "core2" (keep R-B again).
- Change power domain name from 2d to core2.
Changes in v4:
- Add power-domain-names description
(kept Alyssa's reviewed-by as the change is minor)
- Add power-domain-names to describe the 3 domains.
(kept Alyssa's reviewed-by as the change is minor)
- Add power domain names.
Changes in v3:
- Match mt8183-mali instead of bifrost, as we require special
handling for the 2 regulators and 3 power domains.
Changes in v2:
- Use sram instead of mali_sram as SRAM supply name.
- Rename mali@ to gpu@.
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 | 5 +
.../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 5 +
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, 162 insertions(+)
--
2.30.0.280.ga3ce27912f-goog
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next reply other threads:[~2021-01-26 1:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 1:17 Nicolas Boichat [this message]
2021-01-26 1:17 ` [PATCH v11 1/4] dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 Nicolas Boichat
2021-02-05 17:55 ` Rob Herring
2021-02-06 3:01 ` Nicolas Boichat
2021-04-20 12:58 ` Rob Herring
2021-04-20 13:01 ` Rob Herring
2021-04-21 0:11 ` Nicolas Boichat
2021-01-26 1:17 ` [PATCH v11 3/4] drm/panfrost: devfreq: Disable devfreq when num_supplies > 1 Nicolas Boichat
2021-01-26 1:17 ` [PATCH v11 4/4] drm/panfrost: Add mt8183-mali compatible string Nicolas Boichat
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