[PATCH v5 13/18] dt-bindings: dma: ti: Add K3 PKTDMA V2

[Sai Sree Kartheek Adivi]

New binding document for
Texas Instruments K3 Packet DMA (PKTDMA) V2.

PKTDMA V2 is introduced as part of AM62L.

Signed-off-by: Sai Sree Kartheek Adivi <s-adivi at ti.com>
---
 .../bindings/dma/ti/ti,am62l-dmss-pktdma.yaml | 100 ++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml

diff --git a/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml b/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml
new file mode 100644
index 0000000000000..b7a04071b17a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2024-2025 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/ti/ti,am62l-dmss-pktdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments K3 DMSS PKTDMA V2
+
+maintainers:
+  - Sai Sree Kartheek Adivi <s-adivi at ti.com>
+
+description:
+  The PKTDMA V2 is intended to perform similar functions as the packet mode
+  channels of K3 UDMA-P. PKTDMA V2 only includes Split channels to service
+  PSI-L based peripherals.
+
+  The peripherals can be PSI-L native or legacy, non PSI-L native peripherals
+  with PDMAs. PDMA is tasked to act as a bridge between the PSI-L fabric and the
+  legacy peripheral.
+
+allOf:
+  - $ref: /schemas/dma/dma-controller.yaml#
+
+properties:
+  compatible:
+    const: ti,am62l-dmss-pktdma
+
+  reg:
+    items:
+      - description: Packet DMA Control & Status
+      - description: Channel Realtime
+      - description: Ring Realtime
+
+  reg-names:
+    items:
+      - const: gcfg
+      - const: chanrt
+      - const: ringrt
+
+  "#address-cells":
+    const: 0
+
+  "#interrupt-cells":
+    const: 1
+
+  "#dma-cells":
+    const: 2
+    description: |
+      cell 1: Channel identification for the peripheral
+        PSI-L thread ID of the remote (to PKTDMA) end.
+        Valid ranges for thread ID depends on the data movement direction:
+        for source thread IDs (rx): 0 - 0x7fff
+        for destination thread IDs (tx): 0x8000 - 0xffff
+
+        Please refer to the device documentation for the PSI-L thread map and
+        also the PSI-L peripheral chapter for the correct thread ID.
+
+      cell 2: ASEL value for the channel
+
+  interrupt-map-mask:
+    items:
+      - const: 0x7ff
+
+  interrupt-map:
+    description: |
+      Maps internal PKTDMA channel IDs to the parent GIC IRQ lines.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - "#address-cells"
+  - "#interrupt-cells"
+  - "#dma-cells"
+  - interrupt-map-mask
+  - interrupt-map
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    dma-controller at 485c0000 {
+        compatible = "ti,am62l-dmss-pktdma";
+        reg = <0x485c0000 0x4000>,
+              <0x48900000 0x80000>,
+              <0x47200000 0x100000>;
+        reg-names = "gcfg", "chanrt", "ringrt";
+
+        #address-cells = <0>;
+        #interrupt-cells = <1>;
+        #dma-cells = <2>;
+
+        interrupt-map-mask = <0x7ff>;
+        interrupt-map = <64 &gic500 0 0 GIC_SPI 500 IRQ_TYPE_LEVEL_HIGH>,
+                        <65 &gic500 0 0 GIC_SPI 501 IRQ_TYPE_LEVEL_HIGH>;
+    };
-- 
2.34.1