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SubjectRe: [PATCH v2 17/17] arm64: dts: sdm845: add IPA information
From
Date
On 3/11/20 5:49 AM, Jon Hunter wrote:
>
> On 06/03/2020 04:28, Alex Elder wrote:
>> Add IPA-related nodes and definitions to "sdm845.dtsi".
>>
>> Signed-off-by: Alex Elder <elder@linaro.org>
>> ---
>> arch/arm64/boot/dts/qcom/sdm845.dtsi | 51 ++++++++++++++++++++++++++++
>> 1 file changed, 51 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> index d42302b8889b..58fd1c611849 100644
>> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> @@ -675,6 +675,17 @@
>> interrupt-controller;
>> #interrupt-cells = <2>;
>> };
>> +
>> + ipa_smp2p_out: ipa-ap-to-modem {
>> + qcom,entry-name = "ipa";
>> + #qcom,smem-state-cells = <1>;
>> + };
>> +
>> + ipa_smp2p_in: ipa-modem-to-ap {
>> + qcom,entry-name = "ipa";
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> + };
>> };
>>
>> smp2p-slpi {
>> @@ -1435,6 +1446,46 @@
>> };
>> };
>>
>> + ipa@1e40000 {
>> + compatible = "qcom,sdm845-ipa";
>> +
>> + modem-init;
>> + modem-remoteproc = <&mss_pil>;
>> +
>> + reg = <0 0x1e40000 0 0x7000>,
>> + <0 0x1e47000 0 0x2000>,
>> + <0 0x1e04000 0 0x2c000>;
>> + reg-names = "ipa-reg",
>> + "ipa-shared",
>> + "gsi";
>> +
>> + interrupts-extended =
>> + <&intc 0 311 IRQ_TYPE_EDGE_RISING>,
>> + <&intc 0 432 IRQ_TYPE_LEVEL_HIGH>,
>> + <&ipa_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
>> + <&ipa_smp2p_in 1 IRQ_TYPE_EDGE_RISING>;
>> + interrupt-names = "ipa",
>> + "gsi",
>> + "ipa-clock-query",
>> + "ipa-setup-ready";
>> +
>> + clocks = <&rpmhcc RPMH_IPA_CLK>;
>> + clock-names = "core";
>> +
>> + interconnects =
>> + <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_EBI1>,
>> + <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_IMEM>,
>> + <&rsc_hlos MASTER_APPSS_PROC &rsc_hlos SLAVE_IPA_CFG>;
>> + interconnect-names = "memory",
>> + "imem",
>> + "config";
>> +
>> + qcom,smem-states = <&ipa_smp2p_out 0>,
>> + <&ipa_smp2p_out 1>;
>> + qcom,smem-state-names = "ipa-clock-enabled-valid",
>> + "ipa-clock-enabled";
>> + };
>> +
>> tcsr_mutex_regs: syscon@1f40000 {
>> compatible = "syscon";
>> reg = <0 0x01f40000 0 0x40000>;
>>
>
>
> This change is causing the following build error on today's -next ...
>
> DTC arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dtb
> arch/arm64/boot/dts/qcom/sdm845.dtsi:1710.15-1748.5: ERROR (phandle_references): /soc@0/ipa@1e40000: Reference to non-existent node or label "rsc_hlos"

This problem arises because a commit in the Qualcomm SoC tree affects
"arch/arm64/boot/dts/qcom/sdm845.dtsi", changing the interconnect provider
node(s) used by IPA:
b303f9f0050b arm64: dts: sdm845: Redefine interconnect provider DT nodes

I will send out a patch today that updates the IPA node in "sdm845.dtsi"
to correct that.

In the mean time, David, perhaps you should revert this change in net-next:
9cc5ae125f0e arm64: dts: sdm845: add IPA information
and let me work out fixing "sdm845.dtsi" with Andy and Bjorn in the
Qualcomm tree.

Thanks.

-Alex

> Cheers
> Jon
>

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