linux-kernel - [PATCH v8 0/2] drm_bridge: Add HDCP support

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: <20250812082135.3351172-1-fshao@chromium.org>
Date: Tue, 12 Aug 2025 16:17:57 +0800
From: Fei Shao <fshao@...omium.org>
To: Douglas Anderson <dianders@...omium.org>
Cc: Hubert Mazur <hmazur@...gle.com>,
	Sean Paul <seanpaul@...omium.org>,
	Fei Shao <fshao@...omium.org>,
	Xin Ji <xji@...logixsemi.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v8 0/2] drm_bridge: Add HDCP support

Hi Doug,

This is a refreshed series to add HDCP support to DRM bridge.

This v8 revision is based on [v7] and rebased on top of next-20250731.
Note that v7 includes 3 patches, while v8 has only 2. The rationale for
this change is provided below.

In this series:
- Patch 1 registers the content protection property to the bridge
  connector if a bridge supports HDCP.
- Patch 2 sets the HDCP bit in the ANX7625 bridge driver.

Both Patch 1 and Patch 2 were previously reviewed and acked (sort of,
see [ref]). The Reviewed-by tags are carried over as there are no major
changes in v8, except for the rebase.

The third patch from v7, which was specific to the ite-it6505 driver,
isn't included in this series. Discussion on that patch had stalled, and
it was later reverted in the downstream ChromeOS tree, meaning no
manufactured Chromebook devices in the field currently use it.

As a result, I think we can only focus on the first two patches which
have already undergone review.

Please take a look. Thank you.

[v7]: https://lore.kernel.org/all/20221123100529.3943662-1-hsinyi@chromium.org/
[v6]: https://lore.kernel.org/all/20221117110804.1431024-1-hsinyi@chromium.org/
[v5]: https://lore.kernel.org/all/20221115062835.3785083-1-hsinyi@chromium.org/
[ref]: https://lore.kernel.org/all/CAD=FV=VoF5PyeNWX+4_3sseyRemZVsr5WtQVeg-8mhfgm40w3g@mail.gmail.com/

Regards,
Fei

Changes in v8:
- rebase on top of next-20250731

Fei Shao (2):
  drm_bridge: register content protect property
  drm/bridge: anx7625: register content protect property

 drivers/gpu/drm/bridge/analogix/anx7625.c      | 1 +
 drivers/gpu/drm/display/drm_bridge_connector.c | 9 +++++++++
 include/drm/drm_bridge.h                       | 4 ++++
 3 files changed, 14 insertions(+)

-- 
2.51.0.rc0.205.g4a044479a3-goog