linux-kernel - Re: [PATCH v2 0/8] drm/bridge: dw-hdmi: improve i2s support

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Message-ID: <1jo90uimsk.fsf@starbuckisacylon.baylibre.com>
Date:   Mon, 12 Aug 2019 14:35:39 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>,
        Andrzej Hajda <a.hajda@...sung.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Jonas Karlman <jonas@...boo.se>,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 0/8] drm/bridge: dw-hdmi: improve i2s support

On Mon 12 Aug 2019 at 14:19, Neil Armstrong <narmstrong@...libre.com> wrote:

> Hi,
>
> On 12/08/2019 14:07, Jerome Brunet wrote:
>> The purpose of this patchset is to improve the support of the i2s
>> interface of the synopsys hdmi controller.
>> 
>> Once applied, the interface should support all the usual i2s bus formats,
>> 8 channels playback and properly setup the channel number and allocation
>> in the infoframes.
>> 
>> Also, the dw-hdmi i2s interface will now provide the eld to the generic
>> hdmi-codec so it can expose the related controls to user space.
>> 
>> This work was inspired by Jonas Karlman's work, available here [0].
>> 
>> This was tested the Amlogic meson-g12a-sei510 platform.
>> For this specific platform, which uses codec2codec links, there is a
>> runtime dependency for patch 8 on this ASoC series [1].
>> 
>> Changes since v1 [2]:
>>  * Fix copy size in .get_eld()
>> 
>> [0]: https://github.com/Kwiboo/linux-rockchip/commits/rockchip-5.2-for-libreelec-v5.2.3
>> [1]: https://lkml.kernel.org/r/20190725165949.29699-1-jbrunet@baylibre.com
>> [2]: https://lkml.kernel.org/r/20190805134102.24173-1-jbrunet@baylibre.com
>> 
>> Jerome Brunet (8):
>>   drm/bridge: dw-hdmi-i2s: support more i2s format
>>   drm/bridge: dw-hdmi: move audio channel setup out of ahb
>>   drm/bridge: dw-hdmi: set channel count in the infoframes
>>   drm/bridge: dw-hdmi-i2s: enable lpcm multi channels
>>   drm/bridge: dw-hdmi-i2s: set the channel allocation
>>   drm/bridge: dw-hdmi-i2s: reset audio fifo before applying new params
>>   drm/bridge: dw-hdmi-i2s: enable only the required i2s lanes
>>   drm/bridge: dw-hdmi-i2s: add .get_eld support
>
> Reviewed-by: Neil Armstrong <narmstrong@...libre.com>
>
> Jonas, is patch 8 ok for you now ? If yes I'll apply them to
> drm-misc-next.

Please don't ! I did not pick the right change and what I just sent is
just crazy, give me a second to resend

>
> Neil
>
>> 
>>  .../drm/bridge/synopsys/dw-hdmi-ahb-audio.c   | 20 ++-----
>>  .../gpu/drm/bridge/synopsys/dw-hdmi-audio.h   |  1 +
>>  .../drm/bridge/synopsys/dw-hdmi-i2s-audio.c   | 60 +++++++++++++++++--
>>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 37 ++++++++++++
>>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.h     | 13 +++-
>>  include/drm/bridge/dw_hdmi.h                  |  2 +
>>  6 files changed, 108 insertions(+), 25 deletions(-)
>>