linux-kernel - [PATCH 0/2] i.MX91/93 parallel display bridge

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250211084119.849324-1-alexander.stein@ew.tq-group.com>
Date: Tue, 11 Feb 2025 09:41:17 +0100
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.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>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Alexander Stein <alexander.stein@...tq-group.com>
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] i.MX91/93 parallel display bridge

Hi,

i.MX91/93 support a parallel display interface. There is a single register
for configuring the output format. There is not much documentation, but
apparently this does some internal conversion.
Add a bridge driver (similar to fsl-ldb.c) for connecting a bridge/panel
to lcdif.
I'm a bit unsure about the name. There is no dedicated IP, according to
reference manual, just that single register. I would also agree
to imx9-dpi or imx93-dpi.
Note: It's only applicable to i.MX91/93, but not i.MX95!

Tested on TQMa9352 on MBa91xxCA

Best regards,
Alexander

Alexander Stein (2):
  dt-bindings: display: bridge: ldb: Implement simple Freescale
    i.MX91/93 DPI bridge
  drm: bridge: imx9-parallel-disp-fmt: add i.MX91/93 parallel display
    bridge

 .../bridge/fsl,imx9-parallel-disp-fmt.yaml    |  78 +++++++
 drivers/gpu/drm/bridge/Kconfig                |  10 +
 drivers/gpu/drm/bridge/Makefile               |   1 +
 .../gpu/drm/bridge/imx9-parallel-disp-fmt.c   | 213 ++++++++++++++++++
 4 files changed, 302 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
 create mode 100644 drivers/gpu/drm/bridge/imx9-parallel-disp-fmt.c

-- 
2.34.1