Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

Hi Vinayak,

On Fri, Aug 7, 2026 at 6:51 AM Vinayak Katoch
<[email protected]> wrote:
>
> Reserve memory region for audio PD dynamic loading and remote heap
> requirements. Add the required VMID list for memory ownership
> transfers.
>
> Signed-off-by: Vinayak Katoch <[email protected]>
> ---
> Changes in v2:
> - Fixed VMID list alignment.
> - Link to v1: https://lore.kernel.org/r/[email protected]
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)

Thanks for the patch!

This fixes a boot loop on Qualcomm QRB2210 RB1 and Arduino UNO Q, I
wonder if we could add a suitable Fixes tag ?

Tested-by: Christopher Obbard <[email protected]>

> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
> index 590bd2432d85..2064eed01327 100644
> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi
> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
> @@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
>                         qcom,client-id = <1>;
>                         qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
>                 };
> +
> +               adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
> +                       compatible = "shared-dma-pool";
> +                       alloc-ranges = <0x0 0x80000000 0x0 0x80000000>;
> +                       reusable;
> +                       alignment = <0x0 0x400000>;
> +                       size = <0x0 0x800000>;
> +               };
>         };
>
>         smp2p-adsp {
> @@ -2348,6 +2356,9 @@ fastrpc {
>                                         compatible = "qcom,fastrpc";
>                                         qcom,glink-channels = "fastrpcglink-apps-dsp";
>                                         label = "adsp";
> +                                       memory-region = <&adsp_rpc_remote_heap_mem>;
> +                                       qcom,vmids = <QCOM_SCM_VMID_LPASS
> +                                                     QCOM_SCM_VMID_ADSP_HEAP>;
>
>                                         qcom,non-secure-domain;
>
>
> ---
> base-commit: 1701fda2f58e345c050f4309971bdc07cd6146ba
> change-id: 20260806-agatti-audio-357bcd74ae9c
>
> Best regards,
> --
> Vinayak Katoch <[email protected]>
>
>