Re: [PATCH V5 3/8] backlight: qcom-wled: Add new properties for PMI8998

From: Pavel Machek
Date: Mon Aug 27 2018 - 06:05:39 EST


Hi!

On Fri 2018-08-24 15:57:42, Kiran Gunda wrote:
> Update the bindings with the new properties used for
> PMI8998.

> Changes from V3:
> - Removed the default values.

Why?

> +- qcom,current-limit-microamp
> + Usage: optional
> + Value type: <u32>
> + Definition: uA; per-string current limit; value from 0 to 30000 with
> + 2500 uA step.
>
> - qcom,current-boost-limit
> Usage: optional
> Value type: <u32>
> Definition: mA; boost current limit.
> For pm8941: one of: 105, 385, 525, 805, 980, 1260, 1400,
> - 1680. Default: 805 mA
> + 1680.
> For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300,
> - 1500. Default: 970 mA
> + 1500.
>

I'd say that optional properties should list default values...?

> - qcom,ovp
> Usage: optional
> Value type: <u32>
> Definition: V; Over-voltage protection limit; one of:
> - 27, 29, 32, 35. default: 29V
> + 27, 29, 32, 35.
> This property is supported only for PM8941.
>

Same here.

> +- qcom,ovp-millivolt
> + Usage: optional
> + Value type: <u32>
> + Definition: mV; Over-voltage protection limit;
> + For pmi8998: one of 18100, 19600, 29600, 31100
> + If this property is not specified for PM8941, it
> + falls back to "qcom,ovp" property.
> +

"voltage-limit-millivolt"? "ovp" is not really well known acronym.
Pavel

--
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