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[78.94.0.51]) by smtp.gmail.com with ESMTPSA id h5-20020a1709062dc500b009a2235ed496sm604388eji.141.2023.08.31.03.15.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Aug 2023 03:15:15 -0700 (PDT) From: Naresh Solanki X-Google-Original-From: Naresh Solanki To: Peter Rosin , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laurent Pinchart Cc: Patrick Rudolph , Naresh Solanki , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: i2c: Add custom properties for MAX7357/MAX7358 Date: Thu, 31 Aug 2023 12:15:11 +0200 Message-ID: <20230831101513.2042773-1-Naresh.Solanki@9elements.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: Patrick Rudolph 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 Signed-off-by: Naresh Solanki --- Changes in V2: - Update properties. --- .../bindings/i2c/i2c-mux-pca954x.yaml | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) base-commit: f9ea75e087b81081f33e34c4e1ba8b4abe841d9f 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: