# \[PATCH v3 2/9\] ASoC: rockchip: Remove obsolete dmic-delay

- From: jeffy \<hidden\>
- Date: 2017-08-18 01:48:04 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2017/08/5070107
- Thread: https://ratatoskr.run/linux-devicetree/2017/08/5069095/t.md

```text
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...
```