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Message-Id: <20210518232858.1535403-6-robh@kernel.org>
Date: Tue, 18 May 2021 18:28:57 -0500
From: Rob Herring <robh@...nel.org>
To: devicetree@...r.kernel.org, Peter Rosin <peda@...ntia.se>,
Wolfram Sang <wsa@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Jacopo Mondi <jacopo+renesas@...ndi.org>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Kishon Vijay Abraham I <kishon@...com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Lee Jones <lee.jones@...aro.org>,
Niklas Söderlund
<niklas.soderlund+renesas@...natech.se>,
Roger Quadros <rogerq@...com>,
Jonathan Cameron <jic23@...nel.org>
Subject: [PATCH 5/6] dt-bindings: i2c: i2c-mux-pca954x: Convert to DT schema
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Rob Herring <robh@...nel.org>
---
.../bindings/i2c/i2c-mux-pca954x.txt | 74 ------------
.../bindings/i2c/i2c-mux-pca954x.yaml | 106 ++++++++++++++++++
2 files changed, 106 insertions(+), 74 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
deleted file mode 100644
index 9f3f3eb67e87..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-* NXP PCA954x I2C bus switch
-
-The driver supports NXP PCA954x and PCA984x I2C mux/switch devices.
-
-Required Properties:
-
- - compatible: Must contain one of the following.
- "nxp,pca9540",
- "nxp,pca9542",
- "nxp,pca9543",
- "nxp,pca9544",
- "nxp,pca9545",
- "nxp,pca9546", "nxp,pca9846",
- "nxp,pca9547", "nxp,pca9847",
- "nxp,pca9548", "nxp,pca9848",
- "nxp,pca9849"
-
- - reg: The I2C address of the device.
-
- The following required properties are defined externally:
-
- - Standard I2C mux properties. See i2c-mux.txt in this directory.
- - I2C child bus nodes. See i2c-mux.txt in this directory.
-
-Optional Properties:
-
- - reset-gpios: Reference to the GPIO connected to the reset input.
- - idle-state: if present, overrides i2c-mux-idle-disconnect,
- Please refer to Documentation/devicetree/bindings/mux/mux-controller.yaml
- - i2c-mux-idle-disconnect: Boolean; if defined, forces mux to disconnect all
- children in idle state. This is necessary for example, if there are several
- multiplexers on the bus and the devices behind them use same I2C addresses.
- - interrupts: Interrupt mapping for IRQ.
- - interrupt-controller: Marks the device node as an interrupt controller.
- - #interrupt-cells : Should be two.
- - first cell is the pin number
- - second cell is used to specify flags.
- See also Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-
-Example:
-
- i2c-switch@74 {
- compatible = "nxp,pca9548";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x74>;
-
- interrupt-parent = <&ipic>;
- interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
- interrupt-controller;
- #interrupt-cells = <2>;
-
- i2c@2 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <2>;
-
- eeprom@54 {
- compatible = "atmel,24c08";
- reg = <0x54>;
- };
- };
-
- i2c@4 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <4>;
-
- rtc@51 {
- compatible = "nxp,pcf8563";
- reg = <0x51>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
new file mode 100644
index 000000000000..82d9101098c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP PCA954x I2C bus switch
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart@...asonboard.com>
+
+description:
+ The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
+
+allOf:
+ - $ref: /schemas/i2c/i2c-mux.yaml#
+
+properties:
+ compatible:
+ enum:
+ - nxp,pca9540
+ - nxp,pca9542
+ - nxp,pca9543
+ - nxp,pca9544
+ - nxp,pca9545
+ - nxp,pca9546
+ - nxp,pca9547
+ - nxp,pca9548
+ - nxp,pca9849
+ - nxp,pca9846
+ - nxp,pca9847
+ - nxp,pca9848
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#interrupt-cells":
+ const: 2
+
+ interrupt-controller: true
+
+ reset-gpios:
+ maxItems: 1
+
+ i2c-mux-idle-disconnect:
+ type: boolean
+ description: Forces mux to disconnect all children in idle state. This is
+ necessary for example, if there are several multiplexers on the bus and
+ the devices behind them use same I2C addresses.
+
+ idle-state:
+ description: if present, overrides i2c-mux-idle-disconnect
+ $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c-mux@74 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x74>;
+
+ interrupt-parent = <&ipic>;
+ interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+
+ eeprom@54 {
+ compatible = "atmel,24c08";
+ reg = <0x54>;
+ };
+ };
+
+ i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+
+ rtc@51 {
+ compatible = "nxp,pcf8563";
+ reg = <0x51>;
+ };
+ };
+ };
+ };
+...
--
2.27.0
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