linux-kernel - Re: [v2 1/4] dt-bindings: regulator: Add labibb regulator

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Date:   Thu, 14 May 2020 17:20:06 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     agross@...nel.org, lgirdwood@...il.com,
        Mark Brown <broonie@...nel.org>, robh+dt@...nel.org,
        Nisha Kumari <nishakumari@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, kgunda@...eaurora.org,
        Rajendra Nayak <rnayak@...eaurora.org>
Subject: Re: [v2 1/4] dt-bindings: regulator: Add labibb regulator

Hello Bjorn,

Thanks for the comments!

On Tue, 12 May 2020 at 07:15, Bjorn Andersson
<bjorn.andersson@...aro.org> wrote:
>
> On Fri 08 May 13:41 PDT 2020, Sumit Semwal wrote:
>
> > From: Nisha Kumari <nishakumari@...eaurora.org>
> >
> > Adding the devicetree binding for labibb regulator.
> >
> > Signed-off-by: Nisha Kumari <nishakumari@...eaurora.org>
> > Signed-off-by: Sumit Semwal <sumit.semwal@...aro.org>
>
> Sorry, I missed this when we talked about it. But please rewrite this in
> yaml.
Sure, I will.

>
> >
> > --
> > v2: updated for better compatible string and names.
> > ---
> >  .../regulator/qcom-labibb-regulator.txt       | 47 +++++++++++++++++++
> >  1 file changed, 47 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
> >
> > diff --git a/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
> > new file mode 100644
> > index 000000000000..6e639d69f780
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
> > @@ -0,0 +1,47 @@
> > +Qualcomm's LAB(LCD AMOLED Boost)/IBB(Inverting Buck Boost) Regulator
> > +
> > +LAB can be used as a positive boost power supply and IBB can be used as a negative
> > +boost power supply for display panels. Currently implemented for pmi8998.
> > +
> > +Main node required properties:
> > +
> > +- compatible:                        Must be:
> > +                             "qcom,pmi8998-lab-ibb"
> > +- #address-cells:            Must be 1
> > +- #size-cells:                       Must be 0
>
> But the children doesn't have reg properties...
Oh, right. Let me correct that.
>
> > +
> > +LAB subnode required properties:
> > +
> > +- interrupts:                        Specify the interrupts as per the interrupt
> > +                             encoding.
> > +- interrupt-names:           Interrupt names to match up 1-to-1 with
> > +                             the interrupts specified in 'interrupts'
> > +                             property.
>
> Do specify the expected string (and given that you already have the
> lab & ibb subnodes, you don't need to include this in the string).
Yes, agreed. Keeping it as 'sc-err' makes the code easier too.
>
> Regards,
> Bjorn
Best,
Sumit.
>
> > +
> > +IBB subnode required properties:
> > +
> > +- interrupts:                        Specify the interrupts as per the interrupt
> > +                             encoding.
> > +- interrupt-names:           Interrupt names to match up 1-to-1 with
> > +                             the interrupts specified in 'interrupts'
> > +                             property.
> > +
> > +Example:
> > +     pmi8998_lsid1: pmic@3 {
> > +             labibb {
> > +                     compatible = "qcom,pmi8998-lab-ibb";
> > +                     #address-cells = <1>;
> > +                     #size-cells = <0>;
> > +
> > +                     lab: lab {
> > +                             interrupts = <0x3 0xde 0x0 IRQ_TYPE_EDGE_RISING>;
> > +                             interrupt-names = "lab-sc-err";
> > +                     };
> > +
> > +                     ibb: ibb {
> > +                             interrupts = <0x3 0xdc 0x2 IRQ_TYPE_EDGE_RISING>;
> > +                             interrupt-names = "ibb-sc-err";
> > +                     };
> > +
> > +             };
> > +     };
> > --
> > 2.26.2
> >