[PATCH] ASoC: fsl_spdif: implement bypass mode from in to out

[Mark Brown]

On Sun, 26 Sep 2021 17:49:20 +0800, Shengjiu Wang wrote:
> From: Viorel Suman <viorel.suman at nxp.com>
> 
> Implement SPDIF bypass mode. It implies internal SoC
> routing of SPDIF input signal to SPDIF output signal. The
> test bed requires two boards: B1 configured in bypass mode,
> and B2 to feed B1 SPDIF RX port and read B1 SPDIF TX port:
>    B2 TX -> B1 RX,
>    B2 RX <- B1 TX.
> The test procedure:
>  a) Boot both boards
>  b) B2: start "arecord <spdifcard> -r 48kHz | aplay <local DAC>"
>  c) B2: start "aplay <spdifcard> -r 48kHz <2ch 48kHz audio file>"
>  d) B1: enable bypass mode:
> 	amixer -cimxspdif cset numid=8,iface=PCM,name='Bypass Mode' on
>  e) B2: check DAC audio, make sure the same sample rate is used at
> 	steps b) and c), in example above the rate is 48kHz.
>  f) B1: try to run "aplay" or "arecord" on imxspdif card while in
> 	bypass mode - both must fail until bypass mode is disabled
>  g) B1: disable bypass mode:
> 	amixer -cimxspdif cset numid=8,iface=PCM,name='Bypass Mode' off
>  h) B1: check the usual playback and capture on imxspdif card.
> 	During this test try to set bypass mode - must not be allowed
> 	while playback or capture is running.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: fsl_spdif: implement bypass mode from in to out
      commit: 83bea088f976a289bc2efe4e404af47ab79d6639

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
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Thanks,
Mark