| Message ID | 20190214175725.60462-4-ray.jui@broadcom.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iProc I2C slave mode and NIC mode | expand |
On Thu, Feb 14, 2019 at 11:57 AM Ray Jui <ray.jui@broadcom.com> wrote: > > 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> > --- > .../devicetree/bindings/i2c/brcm,iproc-i2c.txt | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt index 81f982ccca31..7a32bf81bfa9 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 +18,14 @@ 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";