[PATCH 4/7] dt-bindings: sdm845-pinctrl: add wakeup interrupt parent for GPIO

[Lina Iyer <ilina@codeaurora.org>]

SDM845 SoC has an always-on interrupt controller (PDC) with select GPIO
routed to the PDC as interrupts that can be used to wake the system up
from deep low power modes and suspend.

Cc: devicetree@vger.kernel.org
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
---
 .../devicetree/bindings/pinctrl/qcom,sdm845-pinctrl.txt    | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sdm845-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sdm845-pinctrl.txt
index 665aadb5ea28..a522ca46667d 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,sdm845-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sdm845-pinctrl.txt
@@ -29,6 +29,11 @@ SDM845 platform.
 	Definition: must be 2. Specifying the pin number and flags, as defined
 		    in <dt-bindings/interrupt-controller/irq.h>
 
+- wakeup-parent:
+	Usage: optional
+	Value type: <phandle>
+	Definition: A phandle to the wakeup interrupt controller for the SoC.
+
 - gpio-controller:
 	Usage: required
 	Value type: <none>
@@ -53,7 +58,6 @@ pin, a group, or a list of pins or groups. This configuration can include the
 mux function to select on those pin(s)/group(s), and various pin configuration
 parameters, such as pull-up, drive strength, etc.
 
-
 PIN CONFIGURATION NODES:
 
 The name of each subnode is not important; all subnodes should be enumerated
@@ -160,6 +164,7 @@ Example:
 		#gpio-cells = <2>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
+		wakeup-parent = <&pdc>;
 
 		qup9_active: qup9-active {
 			mux {
-- 
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