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Message-Id: <20230818174159.1680572-1-festevam@gmail.com>
Date: Fri, 18 Aug 2023 14:41:59 -0300
From: Fabio Estevam <festevam@...il.com>
To: robh+dt@...nel.org
Cc: giometti@...eenne.com, krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Fabio Estevam <festevam@...x.de>
Subject: [PATCH v2] dt-bindings: pps: pps-gpio: Convert to yaml
From: Fabio Estevam <festevam@...x.de>
Convert from pps-gpio.txt to pps-gpio.yaml to allow schema validation.
Signed-off-by: Fabio Estevam <festevam@...x.de>
Acked-by: Rodolfo Giometti <giometti@...eenne.com>
---
Changes since v1:
- Pass maxItems to 'gpios' and 'echo-gpios'. (Rob)
- Pass 'type: boolean' to 'assert-falling-edge'. (Rob)
- Added Rodolfo's Acked-by tag.
.../devicetree/bindings/pps/pps-gpio.txt | 30 ------------
.../devicetree/bindings/pps/pps-gpio.yaml | 49 +++++++++++++++++++
2 files changed, 49 insertions(+), 30 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pps/pps-gpio.txt
create mode 100644 Documentation/devicetree/bindings/pps/pps-gpio.yaml
diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt
deleted file mode 100644
index 9012a2a02e14..000000000000
--- a/Documentation/devicetree/bindings/pps/pps-gpio.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Device-Tree Bindings for a PPS Signal on GPIO
-
-These properties describe a PPS (pulse-per-second) signal connected to
-a GPIO pin.
-
-Required properties:
-- compatible: should be "pps-gpio"
-- gpios: one PPS GPIO in the format described by ../gpio/gpio.txt
-
-Additional required properties for the PPS ECHO functionality:
-- echo-gpios: one PPS ECHO GPIO in the format described by ../gpio/gpio.txt
-- echo-active-ms: duration in ms of the active portion of the echo pulse
-
-Optional properties:
-- assert-falling-edge: when present, assert is indicated by a falling edge
- (instead of by a rising edge)
-
-Example:
- pps {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pps>;
-
- gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
- assert-falling-edge;
-
- echo-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
- echo-active-ms = <100>;
-
- compatible = "pps-gpio";
- };
diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.yaml b/Documentation/devicetree/bindings/pps/pps-gpio.yaml
new file mode 100644
index 000000000000..fd4adfa8d2d4
--- /dev/null
+++ b/Documentation/devicetree/bindings/pps/pps-gpio.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pps/pps-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PPS Signal via GPIO
+
+maintainers:
+ - Fabio Estevam <festevam@...il.com>
+
+properties:
+ compatible:
+ const: pps-gpio
+
+ gpios:
+ description: The GPIO that provides the PPS signal.
+ maxItems: 1
+
+ echo-gpios:
+ description: The GPIO that provides the PPS ECHO signal.
+ maxItems: 1
+
+ echo-active-ms:
+ description: Duration in ms of the active portion of the echo pulse.
+
+ assert-falling-edge:
+ description: Indicates a falling edge assert, when present. Rising edge if absent.
+ type: boolean
+
+required:
+ - compatible
+ - gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ pps {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pps>;
+ gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+ assert-falling-edge;
+ echo-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+ echo-active-ms = <100>;
+ };
--
2.34.1
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