linux-kernel - [PATCH v2 1/4] dt-bindings: soc: qcom: qcom,pmic-glink: add a gpio used to determine the Type-C port plug orientation

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Message-Id: <20231002-topic-sm8550-upstream-type-c-orientation-v2-1-125410d3ff95@linaro.org>
Date:   Mon, 02 Oct 2023 12:20:21 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v2 1/4] dt-bindings: soc: qcom: qcom,pmic-glink: add a gpio
 used to determine the Type-C port plug orientation

On SM8450 and SM8550 based platforms, the Type-C plug orientation is given on a
GPIO line for each connector which are set by the PMIC(s).

Document this optional Type-C connector property, and take the
assumption an active level represents an inverted/flipped orientation.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 .../devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
index bceb479f74c5..422921cf1f82 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
@@ -35,6 +35,12 @@ properties:
   '#size-cells':
     const: 0
 
+  orientation-gpios:
+    description: Array of input gpios for the Type-C connector orientation indication.
+      The GPIO indication is used to detect the orientation of the Type-C connector.
+      The array should contain a gpio entry for each PMIC Glink connector, in reg order.
+      It is defined that GPIO active level means "CC2" or Reversed/Flipped orientation.
+
 patternProperties:
   '^connector@\d$':
     $ref: /schemas/connector/usb-connector.yaml#
@@ -44,6 +50,19 @@ patternProperties:
 required:
   - compatible
 
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - qcom,sm8450-pmic-glink
+                - qcom,sm8550-pmic-glink
+    then:
+      properties:
+        orientation-gpios: false
+
 additionalProperties: false
 
 examples:

-- 
2.34.1