linux-kernel - [PATCH v3 2/2] dt-bindings: aspeed-i2c: add properties for setting i2c clock duty cycle

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Message-Id: <20220607163703.26355-3-potin.lai.pt@gmail.com>
Date:   Wed,  8 Jun 2022 00:37:03 +0800
From:   Potin Lai <potin.lai.pt@...il.com>
To:     Brendan Higgins <brendanhiggins@...gle.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        Rob Herring <robh+dt@...nel.org>,
        Rayn Chen <rayn_chen@...eedtech.com>
Cc:     Patrick Williams <patrick@...cx.xyz>,
        Potin Lai <potin.lai@...ntatw.com>, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Potin Lai <potin.lai.pt@...il.com>
Subject: [PATCH v3 2/2] dt-bindings: aspeed-i2c: add properties for setting i2c clock duty cycle

Introduce a new property for setting a minimum duty cycle for clock high.

* i2c-clk-duty-cycle-min: a minimum percentage of clock high

Signed-off-by: Potin Lai <potin.lai.pt@...il.com>
---
 Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
index ea643e6c3ef5..af4c49111cc0 100644
--- a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
@@ -49,6 +49,14 @@ properties:
     description:
       states that there is another master active on this bus
 
+  i2c-clk-duty-cycle-min:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    maximum: 100
+    default: 50
+    description:
+      a minimum percentage of clock high
+
 required:
   - reg
   - compatible
-- 
2.17.1