Re: [PATCH] ASoC: cs42l42: make HSBIAS_SENSE_EN optional

[Mark Brown]

On Fri, May 07, 2021 at 03:17:48PM +0100, Lucas Tanure wrote:

> +  - cirrus,hs-bias-sense-en: Configures HSBIAS output current sense through
> +  the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce
> +  the potential pop noise during the headset plug out slowly. But on some
> +  platforms ESD voltage will affect it causing test to fail, especially
> +  with CTIA headset type. For different hardware setups, a designer might
> +  want to tweak default behavior.
> +
> +  0 - disabled
> +  1 - enabled
> +  Default = 1

A boolean property would generally be present/absent rather than having
a value...

> +	ret = device_property_read_u32(dev, "cirrus,hs-bias-sense-en", &val);

...and read using device_property_read_bool().

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