linux-kernel - [PATCH v4 3/8] dt-bindings: i2c: iproc: make 'interrupts' optional

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Date:   Mon,  4 Feb 2019 15:15:49 -0800
From:   Ray Jui <ray.jui@...adcom.com>
To:     Wolfram Sang <wsa@...-dreams.de>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>,
        Ray Jui <ray.jui@...adcom.com>
Subject: [PATCH v4 3/8] dt-bindings: i2c: iproc: make 'interrupts' optional

In prep for the introduction of polling mode into the driver, update the
binding document to make the 'interrupts' property optional

Signed-off-by: Ray Jui <ray.jui@...adcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>
---
 .../devicetree/bindings/i2c/brcm,iproc-i2c.txt         | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
index 81f982ccca31..d3a3620b1f06 100644
--- a/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
@@ -9,9 +9,6 @@ Required properties:
     Define the base and range of the I/O address space that contain the iProc
     I2C controller registers
 
-- interrupts:
-    Should contain the I2C interrupt
-
 - clock-frequency:
     This is the I2C bus clock. Need to be either 100000 or 400000
 
@@ -21,6 +18,13 @@ Required properties:
 - #size-cells:
     Always 0
 
+Optional properties:
+
+- interrupts:
+    Should contain the I2C interrupt. If unspecified, driver will fall back to
+    polling mode
+
+
 Example:
 	i2c0: i2c@...08000 {
 		compatible = "brcm,iproc-i2c";
-- 
2.17.1