[PATCH 18/21] dt-bindings: serial: adi,uart4: add adi,uart4 driver documentation

[Arturs Artamonovs via B4 Relay <devnull+arturs.artamonovs.analog.com@xxxxxxxxxx>]

From: Arturs Artamonovs <arturs.artamonovs@xxxxxxxxxx>

Add serial driver bindings.

Signed-off-by: Arturs Artamonovs <Arturs.Artamonovs@xxxxxxxxxx>
Signed-off-by: Utsav Agarwal <Utsav.Agarwal@xxxxxxxxxx>
Co-developed-by: Nathan Barrett-Morrison <nathan.morrison@xxxxxxxxxxx>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@xxxxxxxxxxx>
Co-developed-by: Greg Malysa <greg.malysa@xxxxxxxxxxx>
Signed-off-by: Greg Malysa <greg.malysa@xxxxxxxxxxx>
---
 .../devicetree/bindings/serial/adi,uart.yaml       | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/adi,uart.yaml b/Documentation/devicetree/bindings/serial/adi,uart.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..de58059efa7e21acaa5b7f4984ffadca18f7f53a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/adi,uart.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/adi,uart4.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices UART Driver for SC5XX-family processors
+
+maintainers:
+  - Arturs Artamonovs <arturs.artamonovs@xxxxxxxxxx>
+  - Utsav Agarwal <Utsav.Agarwal@xxxxxxxxxx>
+
+description: |
+  Analog Devices UART Driver for SC59X-family processors
+
+properties:
+  compatible:
+    enum:
+      - adi,uart
+
+  reg:
+    maxItems: 1
+
+  dmas:
+    maxItems: 2
+    minItems: 2
+    description: TX and RX DMA cluster numbers
+
+  dma-names:
+    maxItems: 2
+    minItems: 2
+    description: DMA channel names (tx and rx)
+
+  clocks:
+    maxItems: 1
+    description: Clock being used for UART
+
+  clock-names:
+    maxItems: 1
+    description: Clock name (sclk0)
+
+  interrupt-names:
+    minItems: 3
+    maxItems: 3
+    description: Interrupt names (tx + rx + status)
+
+  interrupts:
+    minItems: 3
+    maxItems: 3
+    description: GIC interrupt numbers
+
+  adi,use-edbo:
+    type: boolean
+    description: Enable divide by one in divisor
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupt-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/adi-sc5xx-clock.h>
+
+    uart0: uart@31003000 {
+      compatible = "adi,uart";
+      reg = <0x31003000 0x40>;
+      clocks = <&clk ADSP_SC598_CLK_CGU0_SCLK0>;
+      clock-names = "sclk0";
+      interrupt-parent = <&gic>;
+      interrupt-names = "tx", "rx", "status";
+      interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+                   <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>,
+                   <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+      adi,use-edbo;
+      status = "disabled";
+    };
+

-- 
2.25.1