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List:       linaro-kernel
Subject:    Re: [PATCH 1/7] arm64: dts: qcom: pm8009: Add base dts file
From:       Dmitry Baryshkov <dmitry.baryshkov () linaro ! org>
Date:       2020-06-21 18:56:04
Message-ID: CAA8EJprbWntcJ_9sKy3veNeEds8nR4cC6sbEcXbhtrsf5Q9O1w () mail ! gmail ! com
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On Sun, 21 Jun 2020 at 09:45, Bjorn Andersson
<bjorn.andersson@linaro.org> wrote:
>
> On Wed 03 Jun 17:43 PDT 2020, Dmitry Baryshkov wrote:
>
> > Add base DTS file for pm8009 along with GPIOs and power-on nodes.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> > ---
> >  arch/arm64/boot/dts/qcom/pm8009.dtsi | 40 ++++++++++++++++++++++++++++
> >  1 file changed, 40 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/qcom/pm8009.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/qcom/pm8009.dtsi b/arch/arm64/boot/dts/qcom/pm8009.dtsi
> > new file mode 100644
> > index 000000000000..9f3e19b5bd00
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/qcom/pm8009.dtsi
> > @@ -0,0 +1,40 @@
> > +// SPDX-License-Identifier: BSD-3-Clause
> > +/*
> > + * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
> > + * Copyright (c) 2019, Linaro Limited
> > + */
> > +
> > +#include <dt-bindings/input/input.h>
> > +#include <dt-bindings/interrupt-controller/irq.h>
> > +#include <dt-bindings/spmi/spmi.h>
> > +#include <dt-bindings/iio/qcom,spmi-vadc.h>
> > +
> > +&spmi_bus {
> > +     pmic@a {
> > +             compatible = "qcom,pm8009", "qcom,spmi-pmic";
> > +             reg = <0xa SPMI_USID>;
> > +             #address-cells = <1>;
> > +             #size-cells = <0>;
> > +
> > +             power-on@800 {
>
> Please name this "pon", just for consistency.
>
> > +                     compatible = "qcom,pm8916-pon";
>
> Can you confirm that pm8009 is subtype 1, and hence the reboot reason
> going into RB_SPARE should be shifted 2 steps, rather than 1 as in the
> newer PMICs?

For pm8009 the subtype reads as 0x07, while according to msm-4.19 gen2
handling is only enabled for subtypes 0x04 and 0x05.

> Would be nice if we had a generic compatible that read the subtype,
> rather than having to add new compatibles for each pmic (or use the old
> ones)...

Will do it in a separate patch.

-- 
With best wishes
Dmitry
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