linux-kernel - Re: [PATCH v3 2/9] ASoC: rockchip: Remove obsolete dmic-delay

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Message-ID: <599645E2.4020402@rock-chips.com>
Date:   Fri, 18 Aug 2017 09:41:54 +0800
From:   jeffy <jeffy.chen@...k-chips.com>
To:     Mark Brown <broonie@...nel.org>
CC:     linux-kernel@...r.kernel.org, dgreid@...omium.org, heiko@...ech.de,
        briannorris@...omium.org, mka@...omium.org, dianders@...omium.org,
        Jaroslav Kysela <perex@...ex.cz>, devicetree@...r.kernel.org,
        alsa-devel@...a-project.org, linux-rockchip@...ts.infradead.org,
        Liam Girdwood <lgirdwood@...il.com>,
        Takashi Iwai <tiwai@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/9] ASoC: rockchip: Remove obsolete dmic-delay

Hi Mark,

thanks for your reply

On 08/18/2017 01:11 AM, Mark Brown wrote:
> On Thu, Aug 17, 2017 at 12:44:10PM +0800, Jeffy Chen wrote:
>
>> This property is no longer used.
>
>> -Optional properties:
>> -- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready.
>> -  If this option is specified, which means it's required dmic need
>> -  delay for DMIC to ready so that rt5514 can avoid recording before
>> -  DMIC send valid data
>
> Why would nobody ever want to use this in future?
>

hmmm, check again, rt5514 fixed this issue in there driver instead in:
a5461fd6c8f7 ASoC: rt5514: Add the DMIC initial delay to wait it ready.

so we don't need this...