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

Fei Shao posted 2 patches 1 month, 3 weeks ago
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(+)
[PATCH v8 0/2] drm_bridge: Add HDCP support
Posted by Fei Shao 1 month, 3 weeks ago
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
Re: [PATCH v8 0/2] drm_bridge: Add HDCP support
Posted by Doug Anderson 1 month, 3 weeks ago
Hi,

On Tue, Aug 12, 2025 at 1:22 AM Fei Shao <fshao@chromium.org> wrote:
>
> 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(+)

These seem OK to me. I checked offline with Sean and he was OK with
his Reviewed-by tag being carried forward on these two patches.

...so I'm fine with landing these patches after some bake time on the
list. Unless I hear objections, I'll land them midway through next
week. Please yell if you object or simply would like more bake time.
Thanks!

-Doug