diff options
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c.txt | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index 1175efed4a41..8a99150ac3a7 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt @@ -12,7 +12,7 @@ Required properties - compatible - name of I2C bus controller following generic names recommended practice. -For other required properties e.g. to describe register sets, interrupts, +For other required properties e.g. to describe register sets, clocks, etc. check the binding documentation of the specific driver. The cells properties above define that an address of children of an I2C bus @@ -29,5 +29,17 @@ Optional properties These properties may not be supported by all drivers. However, if a driver wants to support one of the below features, it should adapt the bindings below. -- clock-frequency - frequency of bus clock in Hz +- clock-frequency - frequency of bus clock in Hz. - wakeup-source - device can be used as a wakeup source. + +- interrupts - interrupts used by the device. +- interrupt-names - "irq" and "wakeup" names are recognized by I2C core, + other names are left to individual drivers. + +Binding may contain optional "interrupts" property, describing interrupts +used by the device. I2C core will assign "irq" interrupt (or the very first +interrupt if not using interrupt names) as primary interrupt for the slave. + +Also, if device is marked as a wakeup source, I2C core will set up "wakeup" +interrupt for the device. If "wakeup" interrupt name is not present in the +binding, then primary interrupt will be used as wakeup interrupt. |