[PATCH] ASoC: dt-bindings: Convert brcm,bcm2835-i2s to DT schema

From: Rob Herring (Arm)
Date: Tue Aug 12 2025 - 16:35:04 EST


Convert the Broadcom BCM2835 I2S/PCM binding to DT schema format. It's a
straightforward conversion.

Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
.../bindings/sound/brcm,bcm2835-i2s.txt | 24 ---------
.../bindings/sound/brcm,bcm2835-i2s.yaml | 51 +++++++++++++++++++
2 files changed, 51 insertions(+), 24 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
create mode 100644 Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.yaml

diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
deleted file mode 100644
index 7bb0362828ec..000000000000
--- a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-* Broadcom BCM2835 SoC I2S/PCM module
-
-Required properties:
-- compatible: "brcm,bcm2835-i2s"
-- reg: Should contain PCM registers location and length.
-- clocks: the (PCM) clock to use
-- dmas: List of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: Identifier string for each DMA request line in the dmas property.
- These strings correspond 1:1 with the ordered pairs in dmas.
-
- One of the DMA channels will be responsible for transmission (should be
- named "tx") and one for reception (should be named "rx").
-
-Example:
-
-bcm2835_i2s: i2s@7e203000 {
- compatible = "brcm,bcm2835-i2s";
- reg = <0x7e203000 0x24>;
- clocks = <&clocks BCM2835_CLOCK_PCM>;
-
- dmas = <&dma 2>,
- <&dma 3>;
- dma-names = "tx", "rx";
-};
diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.yaml b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.yaml
new file mode 100644
index 000000000000..f3cfe92684d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/brcm,bcm2835-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM2835 SoC I2S/PCM module
+
+maintainers:
+ - Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
+
+properties:
+ compatible:
+ const: brcm,bcm2835-i2s
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: Transmission DMA controller phandle and request line.
+ - description: Reception DMA controller phandle and request line.
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - dmas
+ - dma-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/bcm2835.h>
+
+ i2s@7e203000 {
+ compatible = "brcm,bcm2835-i2s";
+ reg = <0x7e203000 0x24>;
+ clocks = <&clocks BCM2835_CLOCK_PCM>;
+ dmas = <&dma 2>, <&dma 3>;
+ dma-names = "tx", "rx";
+ };
--
2.47.2