linux-kernel - [PATCH v4 0/3] drm: rockchip: vop2: Add VP clock resets support

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Message-ID: <20241115162120.83990-1-detlev.casanova@collabora.com>
Date: Fri, 15 Nov 2024 11:20:39 -0500
From: Detlev Casanova <detlev.casanova@...labora.com>
To: linux-kernel@...r.kernel.org
Cc: Sandy Huang <hjc@...k-chips.com>,
	Heiko Stübner <heiko@...ech.de>,
	Andy Yan <andy.yan@...k-chips.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko.stuebner@...rry.de>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Dragan Simic <dsimic@...jaro.org>,
	Alexey Charkov <alchark@...il.com>,
	Jianfeng Liu <liujianfeng1994@...il.com>,
	Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	kernel@...labora.com,
	Detlev Casanova <detlev.casanova@...labora.com>
Subject: [PATCH v4 0/3] drm: rockchip: vop2: Add VP clock resets support

The clock reset must be used when the VOP is configured. Skipping it can
put the VOP in an unknown state where the HDMI signal is either lost or
not matching the selected mode.

This adds support for rk3588(s) based SoCs.

Changes since v3:
- Rebased on drm-misc-next
- Reword first patch subject
- Reorder commits for different trees

Changes since v2:
- Rebase on latest master
- Add details on how to reproduce the issue

Changes since v1:
- Add AXI and AHB clock resets
- Set maxItems for !rk3588 in vop2 bindings

Detlev Casanova (3):
  dt-bindings: display: vop2: Add VP clock resets
  drm/rockchip: vop2: Add clock resets support
  arm64: dts: rockchip: Add VOP clock resets for rk3588s

 .../display/rockchip/rockchip-vop2.yaml       | 40 +++++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 12 ++++++
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c  | 30 ++++++++++++++
 3 files changed, 82 insertions(+)

-- 
2.47.0