linux-kernel - Re: [PATCH v3 2/5] arm64: dts: qcom: sm4450: Add apps_rsc and cmd

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Message-ID: <6c9bee5a-fee6-4c0f-b165-57d40fb41a42@quicinc.com>
Date:   Fri, 22 Sep 2023 09:24:18 +0800
From:   Tengfei Fan <quic_tengfan@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>, <agross@...nel.org>,
        <andersson@...nel.org>, <tglx@...utronix.de>, <maz@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <catalin.marinas@....com>, <will@...nel.org>
CC:     <geert+renesas@...der.be>, <arnd@...db.de>,
        <neil.armstrong@...aro.org>, <nfraprado@...labora.com>,
        <rafal@...ecki.pl>, <peng.fan@....com>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <quic_tsoni@...cinc.com>,
        <quic_shashim@...cinc.com>, <quic_kaushalk@...cinc.com>,
        <quic_tdas@...cinc.com>, <quic_tingweiz@...cinc.com>,
        <quic_aiquny@...cinc.com>, <quic_ajipan@...cinc.com>,
        <kernel@...cinc.com>
Subject: Re: [PATCH v3 2/5] arm64: dts: qcom: sm4450: Add apps_rsc and cmd_db
 node



在 9/20/2023 6:14 PM, Konrad Dybcio 写道:
> 
> 
> On 9/20/23 08:54, Tengfei Fan wrote:
>> From: Ajit Pandey <quic_ajipan@...cinc.com>
>>
>> Add apps_rsc node and cmd_db memory region for sm4450.
>>
>> Signed-off-by: Ajit Pandey <quic_ajipan@...cinc.com>
>> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sm4450.dtsi | 35 ++++++++++++++++++++++++++++
>>   1 file changed, 35 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm4450.dtsi 
>> b/arch/arm64/boot/dts/qcom/sm4450.dtsi
>> index c4e5b33f5169..3d9d3b5e9510 100644
>> --- a/arch/arm64/boot/dts/qcom/sm4450.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm4450.dtsi
>> @@ -5,6 +5,7 @@
>>   #include <dt-bindings/gpio/gpio.h>
>>   #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/soc/qcom,rpmh-rsc.h>
>>   / {
>>       interrupt-parent = <&intc>;
>> @@ -328,6 +329,18 @@
>>           };
>>       };
>> +    reserved_memory: reserved-memory {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +        ranges;
>> +
>> +        aop_cmd_db_mem: cmd-db@...60000 {
>> +            compatible = "qcom,cmd-db";
>> +            reg = <0x0 0x80860000 0x0 0x20000>;
>> +            no-map;
>> +        };
>> +    };
>> +
>>       soc: soc@0 {
>>           #address-cells = <2>;
>>           #size-cells = <2>;
>> @@ -419,6 +432,28 @@
>>                   status = "disabled";
>>               };
>>           };
>> +
>> +        apps_rsc: rsc@...00000 {
>> +            compatible = "qcom,rpmh-rsc";
>> +            reg = <0 0x17a00000 0 0x10000>,
>> +                  <0 0x17a10000 0 0x10000>,
>> +                  <0 0x17a20000 0 0x10000>;
> 0x0 for consistency
Hi Konrad,
Yes, I will update "0" to "0x0" for consistency.
> 
>> +            reg-names = "drv-0", "drv-1", "drv-2";
>> +            interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
>> +            label = "apps_rsc";
>> +            qcom,tcs-offset = <0xd00>;
>> +            qcom,drv-id = <2>;
>> +            qcom,tcs-config = <ACTIVE_TCS    2>, <SLEEP_TCS     3>,
>> +                      <WAKE_TCS      3>, <CONTROL_TCS   0>;
> You haven't addressed Bjorn's comment about the number of
> CONTROL_TCSes, are you sure 0 is correct?
> 
> Konrad
I got confirm from internal power team, setting CONTROL_TCS with 0 is 
correct.


-- 
Thx and BRs,
Tengfei Fan