linux-kernel - Re: [PATCH v2 5/8] arm64: dts: qcom: sm4450: Add apps_rsc and cmd

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Date:   Fri, 22 Sep 2023 09:16:05 +0800
From:   Tengfei Fan <quic_tengfan@...cinc.com>
To:     Bjorn Andersson <andersson@...nel.org>
CC:     <will@...nel.org>, <robin.murphy@....com>, <joro@...tes.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <agross@...nel.org>,
        <konrad.dybcio@...aro.org>, <catalin.marinas@....com>,
        <geert+renesas@...der.be>, <arnd@...db.de>,
        <neil.armstrong@...aro.org>, <nfraprado@...labora.com>,
        <rafal@...ecki.pl>, <peng.fan@....com>,
        <linux-arm-kernel@...ts.infradead.org>, <iommu@...ts.linux.dev>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.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>, <kernel@...cinc.com>,
        Ajit Pandey <quic_ajipan@...cinc.com>
Subject: Re: [PATCH v2 5/8] arm64: dts: qcom: sm4450: Add apps_rsc and cmd_db
 node



在 9/20/2023 11:49 AM, Bjorn Andersson 写道:
> On Fri, Sep 15, 2023 at 10:15:06AM +0800, 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 | 34 ++++++++++++++++++++++++++++
>>   1 file changed, 34 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm4450.dtsi b/arch/arm64/boot/dts/qcom/sm4450.dtsi
>> index c4e5b33f5169..0d1d39197d77 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>;
>> @@ -335,6 +348,27 @@
>>   		dma-ranges = <0 0 0 0 0x10 0>;
>>   		compatible = "simple-bus";
>>   
>> +		apps_rsc: rsc@...00000 {
>> +			compatible = "qcom,rpmh-rsc";
>> +			reg = <0 0x17a00000 0 0x10000>,
> 
> As your later patch shows, and Krzysztof pointed out, the sort order is
> wrong here (sort nodes under /soc by address).
I will ajdust this sort order.
> 
>> +			      <0 0x17a10000 0 0x10000>,
>> +			      <0 0x17a20000 0 0x10000>;
>> +			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>;
> 
> Please confirm that you indeed want 0 CONTROL_TCSs.
> 
> Thanks,
> Bjorn
Hi Bjorn,
yes, I confirmed this from internal power team, CONTROL_TCS with 0 is ok.
> 
>> +			power-domains = <&CLUSTER_PD>;
>> +
>> +			apps_bcm_voter: bcm-voter {
>> +				compatible = "qcom,bcm-voter";
>> +			};
>> +		};
>> +
>>   		tcsr_mutex: hwlock@...0000 {
>>   			compatible = "qcom,tcsr-mutex";
>>   			reg = <0x0 0x01f40000 0x0 0x40000>;
>> -- 
>> 2.17.1
>>

-- 
Thx and BRs,
Tengfei Fan