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Diffstat (limited to 'dts/Bindings/gpio/snps-dwapb-gpio.txt')
-rw-r--r--dts/Bindings/gpio/snps-dwapb-gpio.txt9
1 files changed, 7 insertions, 2 deletions
diff --git a/dts/Bindings/gpio/snps-dwapb-gpio.txt b/dts/Bindings/gpio/snps-dwapb-gpio.txt
index 4a75da7..3c1118b 100644
--- a/dts/Bindings/gpio/snps-dwapb-gpio.txt
+++ b/dts/Bindings/gpio/snps-dwapb-gpio.txt
@@ -26,8 +26,13 @@ controller.
the second encodes the triger flags encoded as described in
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
- interrupt-parent : The parent interrupt controller.
-- interrupts : The interrupt to the parent controller raised when GPIOs
- generate the interrupts.
+- interrupts : The interrupts to the parent controller raised when GPIOs
+ generate the interrupts. If the controller provides one combined interrupt
+ for all GPIOs, specify a single interrupt. If the controller provides one
+ interrupt for each GPIO, provide a list of interrupts that correspond to each
+ of the GPIO pins. When specifying multiple interrupts, if any are unconnected,
+ use the interrupts-extended property to specify the interrupts and set the
+ interrupt controller handle for unused interrupts to 0.
- snps,nr-gpios : The number of pins in the port, a single cell.
- resets : Reset line for the controller.