On Agatti platform the ADSP provides FastRPC support. Add corresponding
device node, in order to be able to utilize the DSP offload from the
Linux side.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
Changes in v2:
- Add more FastRPC context banks (6, 7)
- Link to v1: https://lore.kernel.org/r/20260113-agatti-fastrpc-v1-1-e210903ffcb1@oss.qualcomm.com
---
 arch/arm64/boot/dts/qcom/agatti.dtsi | 41 ++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
index 7815ece261ea..217d465df846 100644
--- a/arch/arm64/boot/dts/qcom/agatti.dtsi
+++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
@@ -2287,6 +2287,47 @@ q6routing: routing {
 						};
 					};
 				};
+
+				fastrpc {
+					compatible = "qcom,fastrpc";
+					qcom,glink-channels = "fastrpcglink-apps-dsp";
+					label = "adsp";
+
+					qcom,non-secure-domain;
+
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					compute-cb@3 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <3>;
+						iommus = <&apps_smmu 0x1c3 0x0>;
+					};
+
+					compute-cb@4 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <4>;
+						iommus = <&apps_smmu 0x1c4 0x0>;
+					};
+
+					compute-cb@5 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <5>;
+						iommus = <&apps_smmu 0x1c5 0x0>;
+					};
+
+					compute-cb@6 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <6>;
+						iommus = <&apps_smmu 0x1c6 0x0>;
+					};
+
+					compute-cb@7 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <7>;
+						iommus = <&apps_smmu 0x1c7 0x0>;
+					};
+				};
 			};
 		};
 

---
base-commit: 0f853ca2a798ead9d24d39cad99b0966815c582a
change-id: 20260113-agatti-fastrpc-e3fe4bea2b42

Best regards,
-- 
With best wishes
Dmitry

On Tue, 13 Jan 2026 18:41:59 +0200, Dmitry Baryshkov wrote:
> On Agatti platform the ADSP provides FastRPC support. Add corresponding
> device node, in order to be able to utilize the DSP offload from the
> Linux side.
> 
> 

Applied, thanks!

[1/1] arm64: dts: qcom: agatti: enable FastRPC on the ADSP
      commit: 851d5ae6003b6517fb641675c33d4b529765fe14

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>

On 1/13/26 5:41 PM, Dmitry Baryshkov wrote:
> On Agatti platform the ADSP provides FastRPC support. Add corresponding
> device node, in order to be able to utilize the DSP offload from the
> Linux side.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
> Changes in v2:
> - Add more FastRPC context banks (6, 7)
> - Link to v1: https://lore.kernel.org/r/20260113-agatti-fastrpc-v1-1-e210903ffcb1@oss.qualcomm.com
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad