From: Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>
Date: Wed, 13 May 2026 18:52:20 +0000 (+0530)
Subject: dt-bindings: dma: qcom,bam-dma: Document BAM v2.0.0 compatible
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dfd9538e78f57705e6c656d3ff5660ae7137789c;p=thirdparty%2Fkernel%2Flinux.git

dt-bindings: dma: qcom,bam-dma: Document BAM v2.0.0 compatible

Document compatible string for bam v2.0.0 version found on kaanapali.
BAM v2.0.0 differs from the earlier v1.7.X revision in terms of register
layout and offsets, requiring a distinct compatible for correct hardware
description.

Also add a new example for BAM v2.0.0 to illustrate a more complete
configuration than the existing v1.4 example. The new example covers
64-bit address and size cells, IOMMU bindings and execution
environment–related properties required on newer platforms.

Signed-off-by: Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260514-knp_qce-v2-1-890e3372eef8@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
index 6493a6968bb4b..0923fb189ada9 100644
--- a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
@@ -23,6 +23,8 @@ properties:
           - qcom,bam-v1.4.0
           # MSM8916, SDM630
           - qcom,bam-v1.7.0
+          # Kaanapali
+          - qcom,bam-v2.0.0
       - items:
           - enum:
               # SDM845, SM6115, SM8150, SM8250 and QCM2290
@@ -118,4 +120,23 @@ examples:
         #dma-cells = <1>;
         qcom,ee = <0>;
     };
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        dma-controller@1dc4000 {
+            compatible = "qcom,bam-v2.0.0";
+            reg = <0x0 0x01dc4000 0x0 0x22000>;
+            interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
+            #dma-cells = <1>;
+            iommus = <&apps_smmu 0xc0 0>, <&apps_smmu 0xc1 0>;
+            qcom,ee = <0>;
+            qcom,num-ees = <4>;
+            num-channels = <20>;
+            qcom,controlled-remotely;
+        };
+    };
 ...