[PATCH 0/4] drm/bridge/adv7511: add CEC support

[Archit Taneja]

Hi Hans,

On 07/30/2017 06:37 PM, Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil at cisco.com>
> 
> This patch series adds CEC support to the drm adv7511/adv7533 drivers.
> 
> I have tested this with the Qualcomm Dragonboard C410 (adv7533 based)
> and the Renesas R-Car Koelsch board (adv7511 based).
> 
> Note: the Dragonboard needs this patch:
> 
> https://patchwork.kernel.org/patch/9824773/
> 
> Archit, can you confirm that this patch will go to kernel 4.14?
> 
> And the Koelsch board needs this 4.13 fix:
> 
> https://patchwork.kernel.org/patch/9836865/
> 
> I only have the Koelsch board to test with, but it looks like other
> R-Car boards use the same adv7511. It would be nice if someone can
> add CEC support to the other R-Car boards as well. The main thing
> to check is if they all use the same 12 MHz fixed CEC clock source.
> 
> Anyone who wants to test this will need the CEC utilities that
> are part of the v4l-utils git repository:
> 
> git clone git://linuxtv.org/v4l-utils.git
> cd v4l-utils
> ./bootstrap.sh
> ./configure
> make
> sudo make install
> 
> Now configure the CEC adapter as a Playback device:
> 
> cec-ctl --playback
> 
> Discover other CEC devices:
> 
> cec-ctl -S

I tried the instructions, and I get the following output. I don't think I have
any CEC device connected, though. Is this the expected behaviour?

#cec-ctl -S
Driver Info:
         Driver Name                : adv7511
         Adapter Name               : 3-0039
         Capabilities               : 0x0000000e
                 Logical Addresses
                 Transmit
                 Passthrough
         Driver version             : 4.13.0
         Available Logical Addresses: 3
         Physical Address           : 1.0.0.0
         Logical Address Mask       : 0x0000
         CEC Version                : 2.0
         Logical Addresses          : 0

#cec-ctl --playback
[ 1038.761545] cec-3-0039: cec_thread_func: message 44 timed out!
Driver Info:
         Driver Name                : adv7511
         Adapter Name               : 3-0039
         Capabilities               : 0x0000000e
                 Logical Addresses
                 Transmit
                 Passthrough
         Driver version             : 4.13.0
         Available Logical Addresses: 3
         Physical Address           : 1.0.0.0
         Logical Address Mask       : 0x0010
         CEC Version                : 2.0
         Vendor ID                  : 0x000c03
         Logical Addresses          : 1 (Allow RC Passthrough)

           Logical Address          : 4
             Primary Device Type    : Playback
             Logical Address Type   : Playback
             All Device Types       : Playback
             RC TV Profile          : None
             Device Features        :
                 None


[ 1041.063605] cec-3-0039: cec_thread_func: message 4f a6 06 10 00 00 timed out!
[ 1043.367482] cec-3-0039: cec_thread_func: message 4f 84 10 00 04 timed out!

Thanks,
Archit

> 
> Regards,
> 
> 	Hans
> 
> Hans Verkuil (4):
>    dt-bindings: adi,adv7511.txt: document cec clock
>    arm: dts: qcom: add cec clock for apq8016 board
>    arm: dts: renesas: add cec clock for Koelsch board
>    drm: adv7511/33: add HDMI CEC support
> 
>   .../bindings/display/bridge/adi,adv7511.txt        |   4 +
>   arch/arm/boot/dts/r8a7791-koelsch.dts              |   8 +
>   arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi          |   2 +
>   drivers/gpu/drm/bridge/adv7511/Kconfig             |   8 +
>   drivers/gpu/drm/bridge/adv7511/Makefile            |   1 +
>   drivers/gpu/drm/bridge/adv7511/adv7511.h           |  45 ++-
>   drivers/gpu/drm/bridge/adv7511/adv7511_cec.c       | 314 +++++++++++++++++++++
>   drivers/gpu/drm/bridge/adv7511/adv7511_drv.c       | 152 +++++++++-
>   drivers/gpu/drm/bridge/adv7511/adv7533.c           |  30 +-
>   9 files changed, 514 insertions(+), 50 deletions(-)
>   create mode 100644 drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
> 

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project