linux-kernel - Re: [PATCH v7 1/6] dt-bindings: leds: Add Qualcomm Light Pulse Generator binding

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Message-ID: <20210502205346.GD2484@yoga>
Date:   Sun, 2 May 2021 15:53:46 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Pavel Machek <pavel@....cz>, Andy Gross <agross@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-K?nig <u.kleine-koenig@...gutronix.de>,
        Lee Jones <lee.jones@...aro.org>, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-pwm@...r.kernel.org,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        Luca Weiss <luca@...tu.xyz>,
        Subbaraman Narayanamurthy <subbaram@...eaurora.org>
Subject: Re: [PATCH v7 1/6] dt-bindings: leds: Add Qualcomm Light Pulse
 Generator binding

On Fri 30 Apr 15:05 CDT 2021, Rob Herring wrote:
> > diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
[..]
> > +  qcom,power-source:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description:
> > +      power-source used to drive the output, as defined in the datasheet.
> > +      Should be specified if the TRILED block is present
> 
> constraints?
> 

Yes, we should be able to constrain this a little bit.

> > +
> > +  qcom,dtest:
> > +    $ref: /schemas/types.yaml#/definitions/uint32-array
> > +    description: >
> > +      A list of integer pairs, where each pair represent the dtest line the
> > +      particular channel should be connected to and the flags denoting how the
> > +      value should be outputed, as defined in the datasheet. The number of
> > +      pairs should be the same as the number of channels.
> 
> Sounds like a matrix rather than array. Constraints on the values?
> 

I wasn't aware of uint32-matrix and that I can describe the constraints
of the values in the matrix. I'll familiarize myself with it and see if
I can tighten this up a little bit.

Thanks,
Bjorn