[PATCH v2 0/2] Add HDMI audio on the Radxa ROCK 5B

From: Detlev Casanova <detlev.casanova@collabora.com>
To: linux-kernel@vger.kernel.org
Cc: Algea Cao <algea.cao@rock-chips.com>,
	Heiko Stuebner <heiko@sntech.de>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Kever Yang <kever.yang@rock-chips.com>,
	dri-devel@lists.freedesktop.org,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Andrzej Hajda <andrzej.hajda@intel.com>,
	kernel@collabora.com, David Airlie <airlied@gmail.com>,
	Dragan Simic <dsimic@manjaro.org>,
	Simona Vetter <simona@ffwll.ch>, Rob Herring <robh@kernel.org>,
	Detlev Casanova <detlev.casanova@collabora.com>,
	Robert Foss <rfoss@kernel.org>,
	Sebastian Reichel <sebastian.reichel@collabora.com>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Sugar Zhang <sugar.zhang@rock-chips.com>,
	linux-rockchip@lists.infradead.org,
	FUKAUMI Naoki <naoki@radxa.com>,
	devicetree@vger.kernel.org, Conor Dooley <conor+dt@kernel.org>,
	Jonas Karlman <jonas@kwiboo.se>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Johan Jonker <jbx6244@gmail.com>,
	linux-arm-kernel@lists.infradead.org,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Jianfeng Liu <liujianfeng1994@gmail.com>,
	Alexey Charkov <alchark@gmail.com>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>
Subject: [PATCH v2 0/2] Add HDMI audio on the Radxa ROCK 5B
Date: Thu, 23 Jan 2025 17:28:05 -0500	[thread overview]
Message-ID: <20250123222850.223255-1-detlev.casanova@collabora.com> (raw)

To support HDMI audio on the rk3588 based devices, the generic HDMI
Codec framework is used in the dw-hdmi-qp DRM bridge driver.

The implementation is mainly based on the downstream driver, ported to the
generic HDMI Codec framework [1] recently merged in the DRM tree.
The parameters computation has been kept as is and the data stored in the
dw_hdmi_qp struct as been cleaned up.

The downstream kernel also implements a machine driver for HDMI audio but
it is doing exactly what the simple-audio-card driver does, so use that
instead in the ROCK 5B device tree.

Based on Linus' master branch.

Changes since v1:
 - Remove useless audio_mutex (was used downstream for multiple drivers access
   to audio functions)
 - Let hdmi_codec build and setup audio infoframes
 - Only access audio registers when connector is connected
 - Rebased on master branch

Detlev Casanova (1):
  arm64: dts: rockchip: Add HDMI0 audio output on rock-5b

Sugar Zhang (1):
  drm/bridge: synopsys: Add audio support for dw-hdmi-qp

 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi |   1 +
 .../boot/dts/rockchip/rk3588-rock-5b.dts      |  19 +
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c  | 424 ++++++++++++++++++
 3 files changed, 444 insertions(+)

-- 
2.48.1

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