linux-kernel - Re: [PATCH v2 10/10] arm64: dts: qcom: sc7280: Update Q6V5 MSS node

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Message-ID: <a021012616af266905099e0563d0fff5@codeaurora.org>
Date:   Wed, 21 Jul 2021 22:46:14 +0530
From:   Sibi Sankar <sibis@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     bjorn.andersson@...aro.org, mka@...omium.org, robh+dt@...nel.org,
        saiprakash.ranjan@...eaurora.org, will@...nel.org, ohad@...ery.com,
        agross@...nel.org, mathieu.poirier@...aro.org,
        robin.murphy@....com, joro@...tes.org, p.zabel@...gutronix.de,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, evgreen@...omium.org,
        dianders@...omium.org
Subject: Re: [PATCH v2 10/10] arm64: dts: qcom: sc7280: Update Q6V5 MSS node

On 2021-07-21 11:17, Stephen Boyd wrote:
> Quoting Sibi Sankar (2021-07-20 03:13:00)
>> Update MSS node to support MSA based modem boot on SC7280 SoCs.
>> 
>> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
>> ---
>>  arch/arm64/boot/dts/qcom/sc7280-idp.dts |  7 +++++++
>>  arch/arm64/boot/dts/qcom/sc7280.dtsi    | 19 ++++++++++++++++---
>>  2 files changed, 23 insertions(+), 3 deletions(-)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts 
>> b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> index 191e8a92d153..d66e3ca42ad5 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> @@ -343,3 +343,10 @@
>>                 bias-pull-up;
>>         };
>>  };
>> +
>> +&remoteproc_mpss {
>> +       status = "okay";
>> +       compatible = "qcom,sc7280-mss-pil";
>> +       iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
>> +       memory-region = <&mba_mem &mpss_mem>;
>> +};
> 
> Can this go above the pinctrl zone in this file? Preferably sorted
> alphabetically by phandle.

Sure, looks like I just added
it based on sort order. Didn't
notice that it fell below the
pinctrl zone.

> 
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi 
>> b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> index 56ea172f641f..6d3687744440 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> @@ -586,7 +586,8 @@
>> 
>>                 remoteproc_mpss: remoteproc@...0000 {
>>                         compatible = "qcom,sc7280-mpss-pas";
>> -                       reg = <0 0x04080000 0 0x10000>;
>> +                       reg = <0 0x04080000 0 0x10000>, <0 0x04180000 
>> 0 0x48>;
>> +                       reg-names = "qdsp6", "rmb";
>> 
>>                         interrupts-extended = <&intc GIC_SPI 264 
>> IRQ_TYPE_EDGE_RISING>,
>>                                               <&modem_smp2p_in 0 
>> IRQ_TYPE_EDGE_RISING>,
>> @@ -597,8 +598,11 @@
>>                         interrupt-names = "wdog", "fatal", "ready", 
>> "handover",
>>                                           "stop-ack", "shutdown-ack";
>> 
>> -                       clocks = <&rpmhcc RPMH_CXO_CLK>;
>> -                       clock-names = "xo";
>> +                       clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
>> +                                <&gcc GCC_MSS_OFFLINE_AXI_CLK>,
>> +                                <&gcc GCC_MSS_SNOC_AXI_CLK>,
>> +                                <&rpmhcc RPMH_CXO_CLK>;
>> +                       clock-names = "iface", "offline", "snoc_axi", 
>> "xo";
>> 
>>                         power-domains = <&rpmhpd SC7280_CX>,
>>                                         <&rpmhpd SC7280_MSS>;
>> @@ -611,6 +615,15 @@
>>                         qcom,smem-states = <&modem_smp2p_out 0>;
>>                         qcom,smem-state-names = "stop";
>> 
>> +                       resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
>> +                                <&pdc_reset PDC_MODEM_SYNC_RESET>;
>> +                       reset-names = "mss_restart", "pdc_reset";
>> +
>> +                       qcom,halt-regs = <&tcsr_mutex 0x23000 0x25000 
>> 0x28000 0x33000>;
>> +                       qcom,ext-regs = <&tcsr_regs 0x10000 0x10004
>> +                                        &tcsr_mutex 0x26004 0x26008>;
>> +                       qcom,qaccept-regs = <&tcsr_mutex 0x23030 
>> 0x23040 0x23020>;
>> +
>>                         status = "disabled";
>> 
>>                         glink-edge {
> 
> Any reason to not combine this stuff with the previous patch?

I split it into two separate
patches just to show that sc7280
supports two ways of bringing
modem out of reset and method
used is determined by the platform.

> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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a Linux Foundation Collaborative Project.

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