linux-kernel - Re: [PATCH v4 05/22] ASoC: tegra20: spdif: Set FIFO trigger level

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Message-ID: <YbtYEml9OwaiO5IC@orome>
Date:   Thu, 16 Dec 2021 16:15:30 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Agneli <poczt@...tonmail.ch>, linux-tegra@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Rob Herring <robh+dt@...nel.org>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v4 05/22] ASoC: tegra20: spdif: Set FIFO trigger level

On Sat, Dec 04, 2021 at 05:37:08PM +0300, Dmitry Osipenko wrote:
> FIFO trigger level must be not less than the size of DMA burst, otherwise

"must be bigger than or equal to"?

> audio will be played x4 faster that it should be because part of the DMA

"faster than"

> data will be dropped on FIFO input buffer overflow.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  sound/soc/tegra/tegra20_spdif.c | 8 ++++++++
>  1 file changed, 8 insertions(+)

Makes sense:

Acked-by: Thierry Reding <treding@...dia.com>

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