[PATCH] dt-bindings: arm: omap: ti,omap-dmm: Convert to DT schema

[PATCH] dt-bindings: arm: omap: ti,omap-dmm: Convert to DT schema

[Bhargav Joshi]

Convert the TI OMAP Dynamic Memory Manager (DMM) dt binding
from text format to DT schema.

During conversion following changes were made:
- Make the 'ti,hwmods' property optional and mark it deprecated as it is
  no longer used, it is kept to support legacy dtbs.
- Add the missing required property 'interrupts' to example node.

Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
---
 Documentation/devicetree/bindings/arm/omap/dmm.txt | 22 ---------
 .../devicetree/bindings/arm/omap/ti,omap-dmm.yaml  | 53 ++++++++++++++++++++++
 2 files changed, 53 insertions(+), 22 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/omap/dmm.txt b/Documentation/devicetree/bindings/arm/omap/dmm.txt
deleted file mode 100644
index 8bd6d0a238a8..000000000000
--- a/Documentation/devicetree/bindings/arm/omap/dmm.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-OMAP Dynamic Memory Manager (DMM) bindings
-
-The dynamic memory manager (DMM) is a module located immediately in front of the
-SDRAM controllers (called EMIFs on OMAP). DMM manages various aspects of memory
-accesses such as priority generation amongst initiators, configuration of SDRAM
-interleaving, optimizing transfer of 2D block objects, and provide MMU-like page
-translation for initiators which need contiguous dma bus addresses.
-
-Required properties:
-- compatible:	Should contain "ti,omap4-dmm" for OMAP4 family
-		Should contain "ti,omap5-dmm" for OMAP5 and DRA7x family
-- reg:		Contains DMM register address range (base address and length)
-- interrupts:	Should contain an interrupt-specifier for DMM_IRQ.
-- ti,hwmods:	Name of the hwmod associated to DMM, which is typically "dmm"
-
-Example:
-
-dmm@4e000000 {
-	compatible = "ti,omap4-dmm";
-	reg = <0x4e000000 0x800>;
-	ti,hwmods = "dmm";
-};
diff --git a/Documentation/devicetree/bindings/arm/omap/ti,omap-dmm.yaml b/Documentation/devicetree/bindings/arm/omap/ti,omap-dmm.yaml
new file mode 100644
index 000000000000..0b375385a7ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/ti,omap-dmm.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/omap/ti,omap-dmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP Dynamic Memory Manager (DMM)
+
+maintainers:
+  - Bhargav Joshi <j.bhargav.u@gmail.com>
+
+description:
+  The dynamic memory manager (DMM) is a module located immediately in front of
+  the SDRAM controllers (called EMIFs on OMAP). DMM manages various aspects of
+  memory accesses such as priority generation amongst initiators, configuration
+  of SDRAM interleaving, optimizing transfer of 2D block objects, and provide
+  MMU-like page translation for initiators which need contiguous dma bus
+  addresses.
+
+properties:
+  compatible:
+    enum:
+      - ti,omap4-dmm
+      - ti,omap5-dmm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  ti,hwmods:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: Name of the hwmod associated to DMM, which is typically "dmm"
+    deprecated: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    dmm@4e000000 {
+      compatible = "ti,omap4-dmm";
+      reg = <0x4e000000 0x800>;
+      interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+      ti,hwmods = "dmm";
+    };

---
base-commit: 8fde5d1d47f69db6082dfa34500c27f8485389a5
change-id: 20260530-ti-omap-dmm-c74669f00cf2

Best regards,
--  
Bhargav

Re: [PATCH] dt-bindings: arm: omap: ti,omap-dmm: Convert to DT schema

[Rob Herring]

On Wed, Jun 03, 2026 at 05:27:39PM +0530, Bhargav Joshi wrote:
> Convert the TI OMAP Dynamic Memory Manager (DMM) dt binding
> from text format to DT schema.
> 
> During conversion following changes were made:
> - Make the 'ti,hwmods' property optional and mark it deprecated as it is
>   no longer used, it is kept to support legacy dtbs.
> - Add the missing required property 'interrupts' to example node.
> 
> Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
> ---
>  Documentation/devicetree/bindings/arm/omap/dmm.txt | 22 ---------
>  .../devicetree/bindings/arm/omap/ti,omap-dmm.yaml  | 53 ++++++++++++++++++++++
>  2 files changed, 53 insertions(+), 22 deletions(-)

This should move to bindings/soc/ti/. Otherwise, looks good.

Rob