[PATCH v3 00/11] Panfrost: Improve and add MediaTek SoCs support

From: AngeloGioacchino Del Regno
Date: Thu Feb 23 2023 - 08:35:06 EST


Changes in v3:
- Changed MT8186 bindings to declare only two power domains
- Added a commit introducing MT8186 specific platform data to
panfrost_drv

Changes in v2:
- Add power-domain-names commit from Chen-Yu to the series
- Kept sram-supply in base schema, overridden for non-MediaTek
- Added Reviewed-by tags from Steven Price to the driver commits
(as released in reply to v1's cover letter - thanks!)

This series adds support for new MediaTek SoCs (MT8186/MT8192/MT8195)
and improves MT8183 support: since the mtk-regulator-coupler driver
was picked, it is now useless for Panfrost to look for, and manage,
two regulators (GPU Vcore and GPU SRAM) on MediaTek;

The aforementioned driver will take care of keeping the voltage
relation (/constraints) of the two regulators on its own when a
voltage change request is sent to the Vcore, solving the old time
issue with not working DVFS on Panfrost+MediaTek (due to devfreq
supporting only single regulator).

In the specific case of MT8183, in order to not break the ABI, it
was necessary to add a new compatible for enabling DVFS.

Alyssa Rosenzweig (3):
drm/panfrost: Increase MAX_PM_DOMAINS to 5
drm/panfrost: Add the MT8192 GPU ID
drm/panfrost: Add mediatek,mt8192-mali compatible

AngeloGioacchino Del Regno (7):
dt-bindings: gpu: mali-bifrost: Split out MediaTek power-domains
variation
dt-bindings: gpu: mali-bifrost: Allow up to 5 power domains for MT8192
dt-bindings: gpu: mali-bifrost: Add compatible for MT8195 SoC
dt-bindings: gpu: mali-bifrost: Add new MT8183 compatible
dt-bindings: gpu: mali-bifrost: Add support for MediaTek MT8186
drm/panfrost: Add new compatible for Mali on the MT8183 SoC
drm/panfrost: Add support for Mali on the MT8186 SoC

Chen-Yu Tsai (1):
dt-bindings: gpu: mali-bifrost: Add power-domain-names to base schema

.../bindings/gpu/arm,mali-bifrost.yaml | 80 ++++++++++++++++++-
drivers/gpu/drm/panfrost/panfrost_device.h | 2 +-
drivers/gpu/drm/panfrost/panfrost_drv.c | 37 +++++++++
drivers/gpu/drm/panfrost/panfrost_gpu.c | 8 ++
4 files changed, 123 insertions(+), 4 deletions(-)

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2.39.2