Re: [PATCH 1/3] arm64: dts: qcom: sm8450: Add IPA support

[Krzysztof Kozlowski <krzk@kernel.org>]

On Mon, Jun 22, 2026 at 09:44:17PM -0400, Esteban Urrutia wrote:
> Add support for IPA in DT while expanding the IMEM region just enough to
> accommodate the modem tables used by IPA.
> As reference, SM8450 uses IPA v5.1.
> 
> Signed-off-by: Esteban Urrutia <esteuwu@proton.me>
> ---
>  arch/arm64/boot/dts/qcom/sm8450.dtsi | 55 ++++++++++++++++++++++++++++++++----
>  1 file changed, 50 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 56cb6e959e4e..c904720008fa 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -2639,6 +2639,47 @@ adreno_smmu: iommu@3da0000 {
>  			dma-coherent;
>  		};
>  
> +		ipa: ipa@3f40000 {
> +			compatible = "qcom,sm8450-ipa";
> +
> +			iommus = <&apps_smmu 0x5c0 0x0>,
> +				 <&apps_smmu 0x5c2 0x0>;
> +			reg = <0 0x3f40000 0 0x10000>,

'reg' is always the second property, followed by reg-names.

> +			      <0 0x3f50000 0 0x5000>,
> +			      <0 0x3e04000 0 0xfc000>;
> +			reg-names = "ipa-reg",
> +				    "ipa-shared",
> +				    "gsi";

Best regards,
Krzysztof