From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Claudiu Beznea <claudiu.beznea@microchip.com>,
lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, lars@metafoo.de,
perex@perex.cz, tiwai@suse.com, nicolas.ferre@microchip.com,
alexandre.belloni@bootlin.com
Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/3] ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding
Date: Thu, 16 Feb 2023 11:04:33 +0100 [thread overview]
Message-ID: <485d74fe-bfb5-c55e-724f-304476624abd@linaro.org> (raw)
In-Reply-To: <20230214161435.1088246-3-claudiu.beznea@microchip.com>
On 14/02/2023 17:14, Claudiu Beznea wrote:
> Add microchip,startup-delay-us binding to let PDMC users to specify
> startup delay.
>
> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
> ---
> .../devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml
> index c4cf1e5ab84b..9b40268537cb 100644
> --- a/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml
> +++ b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml
> @@ -67,6 +67,12 @@ properties:
> maxItems: 4
> uniqueItems: true
>
> + microchip,startup-delay-us:
> + description: |
> + Specifies the delay in microseconds that needs to be applied after
> + enabling the PDMC microphones to avoid unwanted noise due to microphones
> + not being ready.
Is this some hardware delay? Or OS? If OS, why Linux specific delay is
put into DT?
Best regards,
Krzysztof
next prev parent reply other threads:[~2023-02-16 10:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-14 16:14 [PATCH 0/3] ASoC: mchp-pdmc: fix poc noises when starting capture Claudiu Beznea
2023-02-14 16:14 ` [PATCH 1/3] ASoC: soc-generic-dmaengine-pcm: add option to start DMA after DAI Claudiu Beznea
2023-02-14 18:14 ` Lars-Peter Clausen
2023-02-14 21:26 ` Mark Brown
2023-02-16 9:49 ` Claudiu.Beznea
2023-02-16 13:53 ` Lars-Peter Clausen
2023-02-17 10:59 ` Claudiu.Beznea
2023-02-14 16:14 ` [PATCH 2/3] ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding Claudiu Beznea
2023-02-16 10:04 ` Krzysztof Kozlowski [this message]
2023-02-16 10:15 ` Claudiu.Beznea
2023-02-16 10:18 ` Krzysztof Kozlowski
2023-02-16 10:41 ` Claudiu.Beznea
2023-02-16 10:43 ` Krzysztof Kozlowski
2023-02-16 14:46 ` Mark Brown
2023-02-14 16:14 ` [PATCH 3/3] ASoC: mchp-pdmc: fix poc noise at capture startup Claudiu Beznea
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=485d74fe-bfb5-c55e-724f-304476624abd@linaro.org \
--to=krzysztof.kozlowski@linaro.org \
--cc=alexandre.belloni@bootlin.com \
--cc=alsa-devel@alsa-project.org \
--cc=broonie@kernel.org \
--cc=claudiu.beznea@microchip.com \
--cc=devicetree@vger.kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=lars@metafoo.de \
--cc=lgirdwood@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nicolas.ferre@microchip.com \
--cc=perex@perex.cz \
--cc=robh+dt@kernel.org \
--cc=tiwai@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).