linux-kernel - Re: [PATCH 7/8] ASoC: sun50i-codec-analog: Enable DAPM for line out switch

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Message-ID: <CAGb2v67R7ObOSnU3o400PWNtnSFouNUait9ULP_1NQs4YnDccA@mail.gmail.com>
Date:   Mon, 17 Feb 2020 15:20:47 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Maxime Ripard <mripard@...nel.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Luca Weiss <luca@...tu.xyz>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 7/8] ASoC: sun50i-codec-analog: Enable DAPM for line out switch

On Mon, Feb 17, 2020 at 10:18 AM Samuel Holland <samuel@...lland.org> wrote:
>
> By including the line out mute switch in the DAPM graph, the
> Mixer/DAC inputs can be powered off when the line output is muted.
>
> The line outputs have an unusual routing scheme. The left side mute
> switch is between the source selection and the amplifier, as usual.
> The right side source selection comes *after* its amplifier (and
> after the left side amplifier), and its mute switch controls
> whichever source is currently selected. This matches the diagram in
> the SoC manual.
>
> Signed-off-by: Samuel Holland <samuel@...lland.org>

Reviewed-by: Chen-Yu Tsai <wens@...e.org>