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Message-ID: <f29fa789cef74d869db6728f90f28d50@XBOX01.axis.com>
Date:   Mon, 29 Mar 2021 06:03:05 +0000
From:   Hermes Zhang <Hermes.Zhang@...s.com>
To:     Rob Herring <robh@...nel.org>, Hermes Zhang <Hermes.Zhang@...s.com>
CC:     "pavel@....cz" <pavel@....cz>, "dmurphy@...com" <dmurphy@...com>,
        "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "lkml@...s.com" <lkml@...s.com>, kernel <kernel@...s.com>
Subject: Re: [PATCH v2 1/2] dt-binding: leds: Document leds-multi-gpio
 bindings

On 3/28/21 2:12 AM, Rob Herring wrote:
>> +
>> +  led-gpios:
>> +    description: Array of one or more GPIOs pins used to control the LED.
>> +    minItems: 1
>> +    maxItems: 8  # Should be enough
>> +
>> +  led-states:
>> +    description: |
>> +      The array list the supported states here which will map to brightness
>> +      from 0 to maximum. Each item in the array will present all the GPIOs
>> +      value by bit.
>> +    $ref: /schemas/types.yaml#/definitions/uint8-array
>> +    minItems: 1
>> +    maxItems: 256 # Should be enough
> Isn't this the same as the standard 'brightness-levels' from backlight 
> binding? The index is the level and the value is the h/w specific 
> setting.

Yes, it seems same.


Best Regards,

Hermes

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