On 1/13/21 7:06 AM, Nicolas Boichat wrote:
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).
Btw, don't know if you plan to retest with a newer Mesa, but a recent
master should have pretty good ES 3.0 compliance on the Duet.
Cheers,
Tomeu
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-drink...@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(+)
