linux-kernel - Re: [PATCH v3 08/11] arm64: dts: qcom: pm6150: Add PM6150/PM6150L PMIC peripherals

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Date:   Wed, 30 Oct 2019 12:36:05 +0530
From:   kgunda@...eaurora.org
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Rajendra Nayak <rnayak@...eaurora.org>, agross@...nel.org,
        bjorn.andersson@...aro.org, robh+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, mka@...omium.org
Subject: Re: [PATCH v3 08/11] arm64: dts: qcom: pm6150: Add PM6150/PM6150L
 PMIC peripherals

On 2019-10-29 22:08, Stephen Boyd wrote:
> Quoting Rajendra Nayak (2019-10-23 02:02:16)
>> diff --git a/arch/arm64/boot/dts/qcom/pm6150.dtsi 
>> b/arch/arm64/boot/dts/qcom/pm6150.dtsi
>> new file mode 100644
>> index 000000000000..20eb928e5ce3
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/pm6150.dtsi
>> @@ -0,0 +1,85 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +// Copyright (c) 2019, The Linux Foundation. All rights reserved.
>> +
>> +#include <dt-bindings/iio/qcom,spmi-vadc.h>
>> +#include <dt-bindings/input/linux-event-codes.h>
>> +#include <dt-bindings/interrupt-controller/irq.h>
>> +#include <dt-bindings/spmi/spmi.h>
>> +#include <dt-bindings/thermal/thermal.h>
>> +
>> +&spmi_bus {
>> +       pm6150_lsid0: pmic@0 {
>> +               compatible = "qcom,pm6150", "qcom,spmi-pmic";
>> +               reg = <0x0 SPMI_USID>;
>> +               #address-cells = <1>;
>> +               #size-cells = <0>;
>> +
>> +               pm6150_pon: pon@800 {
>> +                       compatible = "qcom,pm8998-pon";
>> +                       reg = <0x800>;
>> +                       mode-bootloader = <0x2>;
>> +                       mode-recovery = <0x1>;
> 
> Can this have status = "disabled"? Or is the idea that if the pmic 
> power
> button isn't used it should be disabled in the board dts file?
> 
Yes. The idea is to go with latter option. Disable it in the board dts 
file if the
pmic power button is not used.
>> +
>> +                       pwrkey {
>> +                               compatible = "qcom,pm8941-pwrkey";
>> +                               interrupts = <0x0 0x8 0 
>> IRQ_TYPE_EDGE_BOTH>;
>> +                               debounce = <15625>;
>> +                               bias-pull-up;
>> +                               linux,code = <KEY_POWER>;
>> +                       };
>> +               };
>> +
>> +               pm6150_temp: temp-alarm@...0 {
>> +                       compatible = "qcom,spmi-temp-alarm";
>> +                       reg = <0x2400>;
>> +                       interrupts = <0x0 0x24 0x0 
>> IRQ_TYPE_EDGE_RISING>;
>> +                       io-channels = <&pm6150_adc ADC5_DIE_TEMP>;
>> +                       io-channel-names = "thermal";
>> +                       #thermal-sensor-cells = <0>;
>> +               };
>> +
>> +               pm6150_adc: adc@...0 {
>> +                       compatible = "qcom,spmi-adc5";
>> +                       reg = <0x3100>;
>> +                       interrupts = <0x0 0x31 0x0 
>> IRQ_TYPE_EDGE_RISING>;
>> +                       #address-cells = <1>;
>> +                       #size-cells = <0>;
>> +                       #io-channel-cells = <1>;
>> +
>> +                       adc-chan@...5_DIE_TEMP {
>> +                               reg = <ADC5_DIE_TEMP>;
>> +                               label = "die_temp";
>> +                       };
>> +               };
>> +
>> +               pm6150_gpio: gpios@...0 {
>> +                       compatible = "qcom,pm6150-gpio", 
>> "qcom,spmi-gpio";
>> +                       reg = <0xc000 0xa00>;
> 
> Drop the size?
> 
Will drop it in next series.
>> +                       gpio-controller;
>> +                       #gpio-cells = <2>;
>> +                       interrupts = <0 0xc0 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc1 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc2 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc3 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc4 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc5 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc6 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc7 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc8 0 IRQ_TYPE_NONE>,
>> +                                    <0 0xc9 0 IRQ_TYPE_NONE>;
> 
> Isn't this supposed to go away?
> 
Yes. We can remove them if we want to go with the way done for pm8998.
>> +
>> +                       interrupt-names = "pm6150_gpio1", 
>> "pm6150_gpio2",
>> +                                       "pm6150_gpio3", 
>> "pm6150_gpio4",
>> +                                       "pm6150_gpio5", 
>> "pm6150_gpio6",
>> +                                       "pm6150_gpio7", 
>> "pm6150_gpio8",
>> +                                       "pm6150_gpio9", 
>> "pm6150_gpio10";
> 
> And this? And have gpio-ranges and use the irqdomain work. Basically,
> should look like pm8998.
Ok.. We can go ahead with the pm8998 way as well. We will address it in 
next series.
> 
>> +               };
>> +       };
>> +
>> +       pm6150_lsid1: pmic@1 {
>> +               compatible = "qcom,pm6150", "qcom,spmi-pmic";
>> +               reg = <0x1 SPMI_USID>;
>> +               #address-cells = <1>;
>> +               #size-cells = <0>;
>> +       };
>> +};