linux-kernel - Re: [PATCH] ASoC: da7219: Fix pole orientation detection on OMTP headsets when playing music

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Message-ID: <Y+ECqY/vyT2Iz2zJ@sirena.org.uk>
Date:   Mon, 6 Feb 2023 13:37:45 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     David Rau <david.rau.zg@...esas.com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "support.opensource@...semi.com" <support.opensource@...semi.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: da7219: Fix pole orientation detection on OMTP
 headsets when playing music

On Sat, Feb 04, 2023 at 07:42:22AM -0800, Guenter Roeck wrote:

> Solve the problem by enabling the ground switch immediately and only
> after an insertion has been detected. Delay pole orientation detection
> until after the chip reports that detection is complete plus an
> additional time depending on the chip configuration. Do this by
> implementing ground switch detection in a delayed worker.

This looks sensible to me.

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