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Subject[PATCH] spi: dt-bindings: Convert spi-gpio binding to json-schema
Date
Convert the spi-gpio binding to DT schema format.

Cc: Mark Brown <broonie@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/spi/spi-gpio.txt | 43 -----------
.../devicetree/bindings/spi/spi-gpio.yaml | 72 +++++++++++++++++++
2 files changed, 72 insertions(+), 43 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/spi/spi-gpio.txt
create mode 100644 Documentation/devicetree/bindings/spi/spi-gpio.yaml

diff --git a/Documentation/devicetree/bindings/spi/spi-gpio.txt b/Documentation/devicetree/bindings/spi/spi-gpio.txt
deleted file mode 100644
index 52db562f17a4..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-gpio.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-SPI-GPIO devicetree bindings
-
-This represents a group of 3-n GPIO lines used for bit-banged SPI on dedicated
-GPIO lines.
-
-Required properties:
-
- - compatible: should be set to "spi-gpio"
- - #address-cells: should be set to <0x1>
- - ranges
- - sck-gpios: GPIO spec for the SCK line to use
- - miso-gpios: GPIO spec for the MISO line to use
- - mosi-gpios: GPIO spec for the MOSI line to use
- - cs-gpios: GPIOs to use for chipselect lines.
- Not needed if num-chipselects = <0>.
- - num-chipselects: Number of chipselect lines. Should be <0> if a single device
- with no chip select is connected.
-
-Deprecated bindings:
-
-These legacy GPIO line bindings can alternatively be used to define the
-GPIO lines used, they should not be used in new device trees.
-
- - gpio-sck: GPIO spec for the SCK line to use
- - gpio-miso: GPIO spec for the MISO line to use
- - gpio-mosi: GPIO spec for the MOSI line to use
-
-Example:
-
- spi {
- compatible = "spi-gpio";
- #address-cells = <0x1>;
- ranges;
-
- sck-gpios = <&gpio 95 0>;
- miso-gpios = <&gpio 98 0>;
- mosi-gpios = <&gpio 97 0>;
- cs-gpios = <&gpio 125 0>;
- num-chipselects = <1>;
-
- /* clients */
- };
-
diff --git a/Documentation/devicetree/bindings/spi/spi-gpio.yaml b/Documentation/devicetree/bindings/spi/spi-gpio.yaml
new file mode 100644
index 000000000000..55c4f1705f07
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-gpio.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/spi-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SPI-GPIO devicetree bindings
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+description:
+ This represents a group of 3-n GPIO lines used for bit-banged SPI on
+ dedicated GPIO lines.
+
+allOf:
+ - $ref: "/schemas/spi/spi-controller.yaml#"
+
+properties:
+ compatible:
+ const: spi-gpio
+
+ sck-gpios:
+ description: GPIO spec for the SCK line to use
+ maxItems: 1
+
+ miso-gpios:
+ description: GPIO spec for the MISO line to use
+ maxItems: 1
+
+ mosi-gpios:
+ description: GPIO spec for the MOSI line to use
+ maxItems: 1
+
+ cs-gpios:
+ description: GPIOs to use for chipselect lines.
+ Not needed if num-chipselects = <0>.
+ minItems: 1
+ maxItems: 1024
+
+ num-chipselects:
+ description: Number of chipselect lines. Should be <0> if a single device
+ with no chip select is connected.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ # Deprecated properties
+ gpio-sck: false
+ gpio-miso: false
+ gpio-mosi: false
+
+required:
+ - compatible
+ - num-chipselects
+ - sck-gpios
+
+examples:
+ - |
+ spi {
+ compatible = "spi-gpio";
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+
+ sck-gpios = <&gpio 95 0>;
+ miso-gpios = <&gpio 98 0>;
+ mosi-gpios = <&gpio 97 0>;
+ cs-gpios = <&gpio 125 0>;
+ num-chipselects = <1>;
+
+ /* clients */
+ };
+
+...
--
2.20.1
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