linux-kernel - Re: [PATCH v2 0/3] drm/panfrost: enable G31 on H616

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Message-ID: <3aea4181-427f-4859-8a89-54c139775da6@gmail.com>
Date: Mon, 28 Apr 2025 08:10:53 +0200
From: Philippe Simons <simons.philippe@...il.com>
To: Boris Brezillon <boris.brezillon@...labora.com>,
 Rob Herring <robh@...nel.org>, Steven Price <steven.price@....com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-sunxi@...ts.linux.dev, Andre Przywara <andre.przywara@....com>,
 Jernej Škrabec <jernej.skrabec@...il.com>
Subject: Re: [PATCH v2 0/3] drm/panfrost: enable G31 on H616

Hi, is there any issue with this serie

Thanks,

Philippe

On 4/3/25 07:52, Philippe Simons wrote:
> Allwinner H616 has a dedicated power domain for its Mali G31.
>
> Currently after probe, the GPU is put in runtime suspend which
> disable the power domain.
> On first usage of GPU, the power domain enable hangs the system.
>
> This series adds the necessary calls to enable the clocks and
> deasserting the reset line after the power domain enabling and
> asserting the reset line and disabling the clocks prior to the
> power domain disabling.
>
> This allows to use the Mali GPU on all Allwinner H616
> boards and devices.
>
> Changelog v1 .. v2:
> - merge flags to a single GPU_PM_RT flag
> - reorder init/deinit powerup/down sequences according to
>    Mali manuals.
> Link to v1:
> https://lore.kernel.org/linux-sunxi/20250312232319.25712-1-simons.philippe@gmail.com/
>
> Philippe Simons (3):
>    drm/panfrost: Add PM runtime flag
>    drm/panfrost: add h616 compatible string
>    drm/panfrost: reorder pd/clk/rst sequence
>
>   drivers/gpu/drm/panfrost/panfrost_device.c | 71 ++++++++++++++++------
>   drivers/gpu/drm/panfrost/panfrost_device.h |  3 +
>   drivers/gpu/drm/panfrost/panfrost_drv.c    |  8 +++
>   3 files changed, 63 insertions(+), 19 deletions(-)
>
>
> base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
> prerequisite-patch-id: eb8a11e2b24bb282970d8b8528834dea7ee392cc