linux-kernel - [PATCH 0/9] Panfrost: Improve and add MediaTek SoCs support

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Message-Id: <20230208103709.116896-1-angelogioacchino.delregno@collabora.com>
Date:   Wed,  8 Feb 2023 11:37:00 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     airlied@...il.com
Cc:     daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, tomeu.vizoso@...labora.com,
        steven.price@....com, alyssa.rosenzweig@...labora.com,
        matthias.bgg@...il.com, robh@...nel.org,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH 0/9] Panfrost: Improve and add MediaTek SoCs support

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 (6):
  dt-bindings: gpu: mali-bifrost: Don't allow sram-supply by default
  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 a compatible for MediaTek MT8186
  drm/panfrost: Add new compatible for Mali on the MT8183 SoC

 .../bindings/gpu/arm,mali-bifrost.yaml        | 68 +++++++++++++++++--
 drivers/gpu/drm/panfrost/panfrost_device.h    |  2 +-
 drivers/gpu/drm/panfrost/panfrost_drv.c       | 28 ++++++++
 drivers/gpu/drm/panfrost/panfrost_gpu.c       |  8 +++
 4 files changed, 99 insertions(+), 7 deletions(-)

-- 
2.39.1