[PATCH v3 1/2] dt-bindings: sound: add DT bindings for Microchip S/PDIF TX Controller

From: Codrin Ciubotariu
Date: Mon Aug 03 2020 - 04:19:13 EST


This patch adds DT bindings for the new Microchip S/PDIF TX Controller
embedded inside sama7g5 SoCs.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@xxxxxxxxxxxxx>
---

Changes in v3:
- removed 'oneOf' from 'compatible' property;
- added 'maxItems: 1' to 'dmas' property;
- removed pinctrl related properties;

Changes in v2:
- replaced https with http;
- reworked example, included bindings;

.../bindings/sound/mchp,spdiftx.yaml | 75 +++++++++++++++++++
1 file changed, 75 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml

diff --git a/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml b/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml
new file mode 100644
index 000000000000..a03b0b871fc9
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mchp,spdiftx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip S/PDIF Tx Controller Device Tree Bindings
+
+maintainers:
+ - Codrin Ciubotariu <codrin.ciubotariu@xxxxxxxxxxxxx>
+
+description:
+ The Microchip Sony/Philips Digital Interface Transmitter is a
+ serial port compliant with the IEC-60958 standard.
+
+properties:
+ "#sound-dai-cells":
+ const: 0
+
+ compatible:
+ const: microchip,sama7g5-spdiftx
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Peripheral Bus Clock
+ - description: Generic Clock
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: gclk
+
+ dmas:
+ description: TX DMA Channel
+ maxItems: 1
+
+ dma-names:
+ const: tx
+
+required:
+ - "#sound-dai-cells"
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+ #include <dt-bindings/dma/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ spdiftx@e1618000 {
+ #sound-dai-cells = <0>;
+ compatible = "microchip,sama7g5-spdiftx";
+ reg = <0xe1618000 0x4000>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma0 AT91_XDMAC_DT_PERID(50)>;
+ dma-names = "tx";
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 85>, <&pmc PMC_TYPE_GCK 85>;
+ clock-names = "pclk", "gclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spdiftx_default>;
+ };
--
2.25.1