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Date:   Mon, 17 Feb 2020 15:30:23 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Mylène Josserand 
        <mylene.josserand@...e-electrons.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: [RFC PATCH 10/34] ASoC: sun8i-codec: Advertise only
 hardware-supported rates

On Mon, Feb 17, 2020 at 12:42:26AM -0600, Samuel Holland wrote:
> The hardware does not support 64kHz, 88.2kHz, or 176.4kHz sample rates,
> so the driver should not advertise them. The hardware can handle two
> additional non-standard sample rates: 12kHz and 24kHz, so declare
> support for them via SNDRV_PCM_RATE_KNOT.
> 
> Cc: stable@...nel.org
> Fixes: 36c684936fae ("ASoC: Add sun8i digital audio codec")
> Fixes: eda85d1fee05 ("ASoC: sun8i-codec: Add ADC support for a33")
> Signed-off-by: Samuel Holland <samuel@...lland.org>

The new sample rates are new functionality, they are definitely not
stable material.   For the sample rates you are removing do we
understand why they were added - do they work for people, are they
perhaps supported for some users and not others for example?

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