linux-kernel - Re: [PATCH v3 07/11] arm64: dts: qcom: sc7180: Add SPMI PMIC arbiter device

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Date:   Wed, 30 Oct 2019 11:36:43 +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 07/11] arm64: dts: qcom: sc7180: Add SPMI PMIC arbiter
 device

On 2019-10-29 22:11, Stephen Boyd wrote:
> Quoting Rajendra Nayak (2019-10-23 02:02:15)
>> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi 
>> b/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> index 04808a07d7da..6584ac6e6c7b 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> @@ -224,6 +224,25 @@
>>                         };
>>                 };
>> 
>> +               spmi_bus: spmi@...0000 {
>> +                       compatible = "qcom,spmi-pmic-arb";
>> +                       reg = <0 0xc440000 0 0x1100>,
> 
> Please pad out the registers to 8 numbers. See sdm845.
Ok.. Will address it in the next series.
> 
>> +                             <0 0xc600000 0 0x2000000>,
>> +                             <0 0xe600000 0 0x100000>,
>> +                             <0 0xe700000 0 0xa0000>,
>> +                             <0 0xc40a000 0 0x26000>;
>> +                       reg-names = "core", "chnls", "obsrvr", "intr", 
>> "cnfg";
>> +                       interrupt-names = "periph_irq";
>> +                       interrupts-extended = <&pdc 1 
>> IRQ_TYPE_LEVEL_HIGH>;
> 
> This is different than sdm845. I guess pdc is working?
> 
Yes. For SDM845 pdc controller support was not yet added. That's why 
still the GIC interrupt is used.
Where as for SC7180 the same is added with 
https://lore.kernel.org/patchwork/patch/1143335/.

Yes. pdc is working.

>> +                       qcom,ee = <0>;
>> +                       qcom,channel = <0>;
>> +                       #address-cells = <1>;
>> +                       #size-cells = <1>;
>> +                       interrupt-controller;
>> +                       #interrupt-cells = <4>;
>> +                       cell-index = <0>;
>> +               };
>> +