[PATCHv3 3/5] dt-bindings: misc: ge-achc: Convert to DT schema format

Sebastian Reichel
2021-05-28T11:37:05Z

Convert the binding to DT schema format. Also update the binding
to fix shortcomings

* Add "nxp,kinetis-k20" fallback compatible
* add programming SPI interface and reset GPIO
* add main clock
* add voltage supplies
* drop spi-max-frequency from required properties,
driver will setup max. frequency

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
.../devicetree/bindings/misc/ge-achc.txt | 26 -------
.../devicetree/bindings/misc/ge-achc.yaml | 67 +++++++++++++++++++
2 files changed, 67 insertions(+), 26 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/misc/ge-achc.txt
create mode 100644 Documentation/devicetree/bindings/misc/ge-achc.yaml

diff --git a/Documentation/devicetree/bindings/misc/ge-achc.txt b/Documentation/devicetree/bindings/misc/ge-achc.txt
deleted file mode 100644
index 77df94d7a32f..000000000000
--- a/Documentation/devicetree/bindings/misc/ge-achc.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-* GE Healthcare USB Management Controller
-
-A device which handles data aquisition from compatible USB based peripherals.
-SPI is used for device management.
-
-Note: This device does not expose the peripherals as USB devices.
-
-Required properties:
-
-- compatible : Should be "ge,achc"
-
-Required SPI properties:
-
-- reg : Should be address of the device chip select within
- the controller.
-
-- spi-max-frequency : Maximum SPI clocking speed of device in Hz, should be
- 1MHz for the GE ACHC.
-
-Example:
-
-spidev0: spi@0 {
- compatible = "ge,achc";
- reg = <0>;
- spi-max-frequency = <1000000>;
-};
diff --git a/Documentation/devicetree/bindings/misc/ge-achc.yaml b/Documentation/devicetree/bindings/misc/ge-achc.yaml
new file mode 100644
index 000000000000..a9c36fa7cf20
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/ge-achc.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright (C) 2021 GE Inc.
+# Copyright (C) 2021 Collabora Ltd.
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/misc/ge-achc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: GE Healthcare USB Management Controller
+
+description: |
+ A device which handles data acquisition from compatible USB based peripherals.
+ SPI is used for device management.
+
+ Note: This device does not expose the peripherals as USB devices.
+
+maintainers:
+ - Sebastian Reichel <sre@kernel.org>
+
+properties:
+ compatible:
+ items:
+ - const: ge,achc
+ - const: nxp,kinetis-k20
+
+ clocks:
+ maxItems: 1
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ vdda-supply:
+ description: Analog power supply regulator on VDDA pin
+
+ reg:
+ minItems: 2
+ maxItems: 2
+ items:
+ - description: Control interface
+ - description: Firmware programming interface
+
+ reset-gpios:
+ description: GPIO used for hardware reset.
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - reg
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ spi@1 {
+ compatible = "ge,achc", "nxp,kinetis-k20";
+ reg = <1>, <0>;
+ clocks = <&achc_24M>;
+ reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
+ };
+ };
--
2.30.2