linux-kernel - Re: [PATCH v2 2/2] dt-bindings: add bindings for QCOM flash LED

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Message-ID: <385ad635-ddea-b3c7-7e4d-2ad18c72e145@quicinc.com>
Date:   Fri, 30 Sep 2022 09:10:28 +0800
From:   Fenglin Wu <quic_fenglinw@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        <linux-leds@...r.kernel.org>, <devicetree@...r.kernel.org>
CC:     <collinsd@...eaurora.org>, <subbaram@...eaurora.org>
Subject: Re: [PATCH v2 2/2] dt-bindings: add bindings for QCOM flash LED



On 2022/9/29 20:40, Krzysztof Kozlowski wrote:
> On 29/09/2022 14:15, Fenglin Wu wrote:
>> Add binding document for flash LED module inside Qualcomm Technologies,
>> Inc. PMICs.
>>
>> Signed-off-by: Fenglin Wu <quic_fenglinw@...cinc.com>
> 
> Thank you for your patch. There is something to discuss/improve.
> 
>> +  reg:
>> +    description: address offset of the flash LED controller
>> +    maxItems: 1
>> +
>> +patternProperties:
>> +  "^led[0-3]$":
> 
> In such case: ^led-[0-9]$"
Sure, I will update in next patchset
> 
>> +    type: object
>> +    $ref: common.yaml#
>> +    unevaluatedProperties: false
>> +    description: |
>> +      Represents the physical LED components which are connected to the
>> +      flash LED channels' output.
>> +
>> +    properties:
>> +      led-sources:
>> +        description: |
>> +          The HW indices of the flash LED channels that connect to the
>> +          physical LED
>> +        allOf:
>> +          - minItems: 1
>> +            maxItems: 2
>> +            items:
>> +              enum: [1, 2, 3, 4]
>> +
>> +      led-max-microamp:
>> +        description: |
>> +          The maximum current value when LED is not operating in flash mode (i.e. torch mode)
>> +          Valid values when an LED is connected to one flash LED channel:
>> +            5000 - 500000, step by 5000
>> +          Valid values when an LED is connected to two flash LED channels:
>> +            10000 - 1000000, step by 10000
>> +        minimum: 5000
>> +        maximum: 1000000
>> +
>> +      flash-max-microamp:
>> +        description: |
>> +          The maximum current value when LED is operating in flash mode.
>> +          Valid values when an LED is connected to one flash LED channel:
>> +            12500 - 1500000, step by 12500
>> +          Valid values when an LED is connected to two flash LED channels:
>> +            25000 - 2000000, step by 12500
>> +        minimum: 12500
>> +        maximum: 2000000
>> +
>> +      flash-max-timeout-us:
>> +        description: |
>> +          The maximum timeout value when LED is operating in flash mode.
>> +          Valid values: 10000 - 1280000, step by 10000
>> +        minimum: 10000
>> +        maximum: 1280000
>> +
>> +    required:
>> +      - led-sources
>> +      - led-max-microamp
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/leds/common.h>
>> +    spmi_bus {
> 
> No underscores in node names, so just "bus"
Sure, I will update in next patchset
> 
>> +        #address-cells = <1>;
>> +        #size-cells = <0>;
> 
> Best regards,
> Krzysztof
>