This patch changes the devicetree bindings for the pps-gpio driver
from the integer based API to the descriptor based API. It also adds
documentation for the device tree capture-clear option.
The change from integer based GPIO API to the descriptor based API
breaks backward compatibility for the devicetree. This is due to
the descriptor based API appending "-gpio" or "-gpios" (see
Documentation/gpio/base.txt.)
Signed-off-by: Tom Burkart <tom@xxxxxxxxxx>
---
Documentation/devicetree/bindings/pps/pps-gpio.txt | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt
index 3683874832ae..f7789e48a022 100644
--- a/Documentation/devicetree/bindings/pps/pps-gpio.txt
+++ b/Documentation/devicetree/bindings/pps/pps-gpio.txt
@@ -5,19 +5,21 @@ a GPIO pin.
Required properties:
- compatible: should be "pps-gpio"
-- gpios: one PPS GPIO in the format described by ../gpio/gpio.txt
+- pps-gpios: one PPS GPIO in the format described by ../gpio/gpio.txt
Optional properties:
- assert-falling-edge: when present, assert is indicated by a falling edge
(instead of by a rising edge)
+- capture-clear: when present, also capture the PPS clear event
Example:
pps {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pps>;
- gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+ pps-gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
assert-falling-edge;
+ capture-clear;
compatible = "pps-gpio";
};
--
2.12.3
