[PATCHv4 0/4] tegra-cec: add Tegra HDMI CEC support

[Hans Verkuil]

Hi Thierry,

On 09/11/2017 02:29 PM, Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil at cisco.com>
> 
> This patch series adds support for the Tegra CEC functionality.
> 
> This v4 has been rebased to the latest 4.14 pre-rc1 mainline.
> 
> Please review! Other than for the bindings that are now Acked I have not
> received any feedback.

Can you or someone else from the Tegra maintainers review this?

I have not heard anything about this patch series, nor of the previous
versions of this series. What's the hold-up?

Regards,

	Hans

> 
> The first patch documents the CEC bindings, the second adds support
> for this to tegra124.dtsi and enables it for the Jetson TK1.
> 
> The third patch adds the CEC driver itself and the final patch adds
> the cec notifier support to the drm/tegra driver in order to notify
> the CEC driver whenever the physical address changes.
> 
> I expect that the dts changes apply as well to the Tegra X1/X2 and possibly
> other Tegra SoCs, but I can only test this with my Jetson TK1 board.
> 
> The dt-bindings and the tegra-cec driver would go in through the media
> subsystem, the drm/tegra part through the drm subsystem and the dts
> changes through (I guess) the linux-tegra developers. Luckily they are
> all independent of one another.
> 
> To test this you need the CEC utilities from git://linuxtv.org/v4l-utils.git.
> 
> To build this:
> 
> git clone git://linuxtv.org/v4l-utils.git
> cd v4l-utils
> ./bootstrap.sh; ./configure
> make
> sudo make install # optional, you really only need utils/cec*
> 
> To test:
> 
> cec-ctl --playback # configure as playback device
> cec-ctl -S # detect all connected CEC devices
> 
> See here for the public CEC API:
> 
> https://hverkuil.home.xs4all.nl/spec/uapi/cec/cec-api.html
> 
> Regards,
> 
> 	Hans
> 
> Changes since v3:
> 
> - Use the new CEC_CAP_DEFAULTS define
> - Use IS_ERR(cec->adap) instead of IS_ERR_OR_NULL(cec->adap)
>   (cec_allocate_adapter never returns a NULL pointer)
> - Drop the device_init_wakeup: wakeup is not (yet) supported by
>   the CEC framework and I have never tested it.
> 
> Hans Verkuil (4):
>   dt-bindings: document the tegra CEC bindings
>   ARM: tegra: add CEC support to tegra124.dtsi
>   tegra-cec: add Tegra HDMI CEC driver
>   drm/tegra: add cec-notifier support
> 
>  .../devicetree/bindings/media/tegra-cec.txt        |  27 ++
>  MAINTAINERS                                        |   8 +
>  arch/arm/boot/dts/tegra124-jetson-tk1.dts          |   4 +
>  arch/arm/boot/dts/tegra124.dtsi                    |  12 +-
>  drivers/gpu/drm/tegra/Kconfig                      |   1 +
>  drivers/gpu/drm/tegra/drm.h                        |   3 +
>  drivers/gpu/drm/tegra/hdmi.c                       |   9 +
>  drivers/gpu/drm/tegra/output.c                     |   6 +
>  drivers/media/platform/Kconfig                     |  11 +
>  drivers/media/platform/Makefile                    |   2 +
>  drivers/media/platform/tegra-cec/Makefile          |   1 +
>  drivers/media/platform/tegra-cec/tegra_cec.c       | 501 +++++++++++++++++++++
>  drivers/media/platform/tegra-cec/tegra_cec.h       | 127 ++++++
>  13 files changed, 711 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/media/tegra-cec.txt
>  create mode 100644 drivers/media/platform/tegra-cec/Makefile
>  create mode 100644 drivers/media/platform/tegra-cec/tegra_cec.c
>  create mode 100644 drivers/media/platform/tegra-cec/tegra_cec.h
>