linux-kernel - Re: [PATCH] arm64: dts: qcom: Add SDM845 SMEM nodes

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Date:   Thu, 26 Apr 2018 19:55:12 +0530
From:   Sibi S <sibis@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     andy.gross@...aro.org, david.brown@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, catalin.marinas@....com, will.deacon@....com,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-soc@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: Add SDM845 SMEM nodes

Hi Bjorn,

Thanks for the review

On 04/26/2018 03:36 AM, Bjorn Andersson wrote:
> On Wed 25 Apr 07:46 PDT 2018, Sibi Sankar wrote:
>> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> index 9be763da0664..bea985045759 100644
>> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> @@ -21,6 +21,27 @@
>>   		reg = <0 0x80000000 0 0>;
>>   	};
>>   
>> +	reserved-memory {
>> +		#address-cells = <2>;
>> +		#size-cells = <2>;
>> +		ranges;
>> +
>> +		memory@...c0000 {
>> +			reg = <0 0x85fc0000 0 0x40000>;
> 
> The region 0x85fe0000 + 0x20000 seems to be command db, which should be
> described on its own. So please reduce the size to 0x20000.
> 
>> +			no-map;
>> +		};
>> +
>> +		smem_mem: smem-mem@...00000 {
> 
> smem_mem: memory@...00000 ?

Should I update kernel docs as well to say all nodes should
have memory has default name? Just followed what was done in
msm8916 and msm8996.

> 
>> +			reg = <0x0 0x86000000 0x0 0x200000>;
>> +			no-map;
>> +		};
>> +
>> +		memory@...00000 {
> 
> memory@...00000
> 
>> +			reg = <0 0x86200000 0 0x2d00000>;
>> +			no-map;
>> +		};
>> +	};
>> +
> 
> The rest looks good.
> 
> Regards,
> Bjorn
> 

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