Re: [PATCH v2 3/3] arm64: dts: qcom: sm8450: Add IPA node

[Dmitry Baryshkov]

On Wed, Sep 09, 2026 at 03:11:39AM +0000, Esteban Urrutia wrote:
> Add the description of the IPA block in the SM8450 SoC.
> 
> Co-developed-by: Nazar Kompanets <xlie7669@xxxxxxxxx>
> Signed-off-by: Nazar Kompanets <xlie7669@xxxxxxxxx>
> Signed-off-by: Esteban Urrutia <esteuwu@xxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sm8450.dtsi | 59 +++++++++++++++++++++++++++++++-----
>  1 file changed, 52 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index b8793482b181..95b6fd22a846 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -2625,6 +2625,47 @@ adreno_smmu: iommu@3da0000 {
>  			dma-coherent;
>  		};
>  
> +		ipa: ipa@3f40000 {
> +			compatible = "qcom,sm8450-ipa";
> +
> +			reg = <0 0x3f40000 0 0x10000>,
> +			      <0 0x3f50000 0 0x5000>,
> +			      <0 0x3e04000 0 0xfc000>;
> +			reg-names = "ipa-reg",
> +				    "ipa-shared",
> +				    "gsi";
> +			iommus = <&apps_smmu 0x5c0 0x0>,
> +				 <&apps_smmu 0x5c2 0x0>;
> +
> +			interrupts-extended = <&intc GIC_SPI 654 IRQ_TYPE_EDGE_RISING>,
> +					      <&intc GIC_SPI 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 = <&aggre2_noc MASTER_IPA 0 &mc_virt SLAVE_EBI1 0>,
> +					<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_IPA_CFG 0>;
> +			interconnect-names = "memory",
> +					     "config";
> +
> +			qcom,qmp = <&aoss_qmp>;
> +
> +			qcom,smem-states = <&ipa_smp2p_out 0>,
> +					   <&ipa_smp2p_out 1>;
> +			qcom,smem-state-names = "ipa-clock-enabled-valid",
> +						"ipa-clock-enabled";
> +
> +			sram = <&ipa_modem_tables>;

No qcom,gsi-loader / memory-region ?

> +
> +			status = "disabled";
> +		};
> +
>  		usb_1_hsphy: phy@88e3000 {
>  			compatible = "qcom,sm8450-usb-hs-phy",
>  				     "qcom,usb-snps-hs-7nm-phy";


Also the device is disabled by default. On which platform did you enable
it? Is it supported upstream?

-- 
With best wishes
Dmitry