dt-bindings: i2c: iproc: make 'interrupts' optional (68258708) · Commits · 戴 / test

Update the binding document to make the 'interrupts' property optional. For certain revisions of the I2C controller (e.g., iProc NIC I2C), I2C interrupt is unwired to the interrupt controller. In such case, this 'interrupts' property should be left unspecified, and driver will fall back to polling mode Signed-off-by:

Ray Jui <ray.jui@broadcom.com> Signed-off-by:

Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Reviewed-by:

Rob Herring <robh@kernel.org> Signed-off-by:

Wolfram Sang <wsa@the-dreams.de>

Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt

+8 −3

Original line number	Diff line number	Diff line
		@@ -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 +18,14 @@ Required properties:
		- #size-cells:
		Always 0

		Optional properties:

		- interrupts:
		Should contain the I2C interrupt. For certain revisions of the I2C
		controller, I2C interrupt is unwired to the interrupt controller. In such
		case, this property should be left unspecified, and driver will fall back
		to polling mode

		Example:
		i2c0: i2c@18008000 {
		compatible = "brcm,iproc-i2c";

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