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Message-Id: <20211214095021.572799-1-patrick.rudolph@9elements.com>
Date: Tue, 14 Dec 2021 10:50:18 +0100
From: Patrick Rudolph <patrick.rudolph@...ements.com>
To: Peter Rosin <peda@...ntia.se>, Rob Herring <robh+dt@...nel.org>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Patrick Rudolph <patrick.rudolph@...ements.com>,
linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] dt-bindings: i2c Update PCA954x
Add the Maxim MAX735x as supported chip to PCA954x and add an
example how to use it.
Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
---
.../bindings/i2c/i2c-mux-pca954x.yaml | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
index 9f1726d0356b..bd794cb80c11 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
@@ -11,6 +11,7 @@ maintainers:
description:
The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
+ Compatible with Maxim MAX7356 - MAX7358 I2C mux/switch devices.
allOf:
- $ref: /schemas/i2c/i2c-mux.yaml#
@@ -19,6 +20,9 @@ properties:
compatible:
oneOf:
- enum:
+ - maxim,max7356
+ - maxim,max7357
+ - maxim,max7358
- nxp,pca9540
- nxp,pca9542
- nxp,pca9543
@@ -40,6 +44,7 @@ properties:
interrupts:
maxItems: 1
+ description: Only supported on NXP devices. Unsupported on Maxim MAX735x.
"#interrupt-cells":
const: 2
@@ -100,6 +105,41 @@ examples:
#size-cells = <0>;
reg = <4>;
+ rtc@51 {
+ compatible = "nxp,pcf8563";
+ reg = <0x51>;
+ };
+ };
+ };
+ };
+
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c-mux@74 {
+ compatible = "maxim,max7357";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x74>;
+
+ i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ eeprom@54 {
+ compatible = "atmel,24c08";
+ reg = <0x54>;
+ };
+ };
+
+ i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+
rtc@51 {
compatible = "nxp,pcf8563";
reg = <0x51>;
--
2.33.1
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