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: <20230818131750.4779-1-a-bhatia1@ti.com>
Date:   Fri, 18 Aug 2023 18:47:48 +0530
From:   Aradhya Bhatia <a-bhatia1@...com>
To:     Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Jyri Sarha <jyri.sarha@....fi>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     DRI Development List <dri-devel@...ts.freedesktop.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Jayesh Choudhary <j-choudhary@...com>,
        Jai Luthra <j-luthra@...com>, Aradhya Bhatia <a-bhatia1@...com>
Subject: [PATCH 0/2] Add DSS support for TI AM62A7 SoC

This patch series adds a new compatible for the Display SubSystem (DSS)
controller on TI's AM62A7 SoC. It further adds the required support, for
the same, in the tidss driver.

The DSS controller is similar to the recently added AM625 DSS, with the
key difference being the absence of VP1 output on the SoC. The VP1 in
AM62A7 DSS is tied off and cannot be used, unlike in AM625, where the
VP1 was connected to 2 OLDI TXes. The video pipeline that corresponds to
VP1 still exists and can be used to overlay planes on the VP2's primary
plane. This can be done using the overlay managers inside the SoC.
Moreover, DSS VP2 can output Full-HD RGB888 DPI video signals.

I have tested these patches on AM62A7 SK-EVM, which converts DPI signals
to HDMI on the platform using the Sil9022A HDMI transmitter. All the
patches, required to enable display on AM62A7-SK, can be found on my
github fork[0] in the branch "next_am62a".

Regards
Aradhya

[0]: https://github.com/aradhya07/linux-ab/tree/next_am62a


Aradhya Bhatia (2):
  dt-bindings: display: ti: Add support for am62a7 dss
  drivers/tidss: Add support for AM62A7 DSS

 .../bindings/display/ti/ti,am65x-dss.yaml     | 14 +++++
 drivers/gpu/drm/tidss/tidss_dispc.c           | 53 +++++++++++++++++++
 drivers/gpu/drm/tidss/tidss_dispc.h           |  2 +
 drivers/gpu/drm/tidss/tidss_drv.c             |  1 +
 4 files changed, 70 insertions(+)


base-commit: 47762f08697484cf0c2f2904b8c52375ed26c8cb
-- 
2.40.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ