Messages in this thread Patch in this message | | | From | Naresh Solanki <> | Subject | [PATCH v2 1/2] dt-bindings: i2c: Add custom properties for MAX7357/MAX7358 | Date | Thu, 31 Aug 2023 12:15:11 +0200 |
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From: Patrick Rudolph <patrick.rudolph@9elements.com>
Both chips have a configuration register to enable additional features. These features aren't enabled by default & its up to board designer to enable the same.
Add booleans for: - maxim,isolate-stuck-channel - maxim,send-flush-out-sequence - maxim,preconnection-wiggle-test-enable
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com> --- Changes in V2: - Update properties. --- .../bindings/i2c/i2c-mux-pca954x.yaml | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml index 2d7bb998b0e9..fa73eadfdf7b 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml @@ -71,6 +71,23 @@ properties: description: A voltage regulator supplying power to the chip. On PCA9846 the regulator supplies power to VDD2 (core logic) and optionally to VDD1. + maxim,isolate-stuck-channel: + type: boolean + description: Allows to use non faulty channels while a stuck channel is + isolated from the upstream bus. If not set all channels are isolated from + the upstream bus until the fault is cleared. + + maxim,send-flush-out-sequence: + type: boolean + description: Send a flush-out sequence to stuck auxiliary buses + automatically after a stuck channel is being detected. + + maxim,preconnection-wiggle-test-enable: + type: boolean + description: Send a STOP condition to the auxiliary buses when the switch + register activates a channel to detect a stuck high fault. On fault the + channel is isolated from the upstream bus. + required: - compatible - reg @@ -95,6 +112,20 @@ allOf: "#interrupt-cells": false interrupt-controller: false + - if: + not: + properties: + compatible: + contains: + enum: + - maxim,max7357 + - maxim,max7358 + then: + properties: + maxim,isolate-stuck-channel: false + maxim,send-flush-out-sequence: false + maxim,preconnection-wiggle-test-enable: false + unevaluatedProperties: false examples: base-commit: f9ea75e087b81081f33e34c4e1ba8b4abe841d9f -- 2.41.0
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