[PATCH 7/8] dt-bindings: serial: Convert ingenic,uart.txt to YAML

Paul Cercueil
2020-04-26T19:00:00Z

Convert the ingenic,uart.txt to a new ingenic,uart.yaml file.

A few things were changed in the process:
- the dmas and dma-names properties are now required.
- the ingenic,jz4770-uart and ingenic,jz4775-uart compatible strings now
require the ingenic,jz4760-uart string to be used as fallback, since
the hardware is compatible.
- the ingenic,jz4725b-uart compatible string was added, with a fallback
to ingenic,jz4740-uart.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
.../bindings/serial/ingenic,uart.txt | 28 ------
.../bindings/serial/ingenic,uart.yaml | 94 +++++++++++++++++++
2 files changed, 94 insertions(+), 28 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/serial/ingenic,uart.txt
create mode 100644 Documentation/devicetree/bindings/serial/ingenic,uart.yaml

diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.txt b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
deleted file mode 100644
index 24ed8769f4af..000000000000
--- a/Documentation/devicetree/bindings/serial/ingenic,uart.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* Ingenic SoC UART
-
-Required properties:
-- compatible : One of:
- - "ingenic,jz4740-uart",
- - "ingenic,jz4760-uart",
- - "ingenic,jz4770-uart",
- - "ingenic,jz4775-uart",
- - "ingenic,jz4780-uart",
- - "ingenic,x1000-uart".
-- reg : offset and length of the register set for the device.
-- interrupts : should contain uart interrupt.
-- clocks : phandles to the module & baud clocks.
-- clock-names: tuple listing input clock names.
- Required elements: "baud", "module"
-
-Example:
-
-uart0: serial@10030000 {
- compatible = "ingenic,jz4740-uart";
- reg = <0x10030000 0x100>;
-
- interrupt-parent = <&intc>;
- interrupts = <9>;
-
- clocks = <&ext>, <&cgu JZ4740_CLK_UART0>;
- clock-names = "baud", "module";
-};
diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.yaml b/Documentation/devicetree/bindings/serial/ingenic,uart.yaml
new file mode 100644
index 000000000000..c023d650e9c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/ingenic,uart.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/ingenic,uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic SoCs UART controller devicetree bindings
+
+maintainers:
+ - Paul Cercueil <paul@crapouillou.net>
+
+properties:
+ $nodename:
+ pattern: "^serial@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - ingenic,jz4740-uart
+ - ingenic,jz4760-uart
+ - ingenic,jz4780-uart
+ - ingenic,x1000-uart
+ - items:
+ - enum:
+ - ingenic,jz4770-uart
+ - ingenic,jz4775-uart
+ - const: ingenic,jz4760-uart
+ - items:
+ - const: ingenic,jz4725b-uart
+ - const: ingenic,jz4740-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Baud clock
+ - description: UART module clock
+
+ clock-names:
+ items:
+ - const: baud
+ - const: module
+
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for RX
+ - description: DMA controller phandle and request line for TX
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/jz4780-cgu.h>
+ #include <dt-bindings/dma/jz4780-dma.h>
+ #include <dt-bindings/gpio/gpio.h>
+ serial@10032000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10032000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <49>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
+ clock-names = "baud", "module";
+
+ dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
+ <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
+ dma-names = "rx", "tx";
+
+ bluetooth {
+ compatible = "brcm,bcm4330-bt";
+ reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
+ vcc-supply = <&wlan0_power>;
+ device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
+ host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
+ shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
+ };
+ };
--
2.26.2