[PATCH 5/6] dt-bindings: rtc: brcm,brcmstb-waketimer: add alarm interrupt

[Doug Berger]

A second interrupt can optionally be specified for this device
to be used for generating RTC alarm interrupts.

Signed-off-by: Doug Berger <opendmb@xxxxxxxxx>
---
 .../bindings/rtc/brcm,brcmstb-waketimer.yaml  | 22 ++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.yaml b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.yaml
index 9fe079917a98..a9199f299a68 100644
--- a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.yaml
+++ b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.yaml
@@ -11,7 +11,8 @@ maintainers:
 
 description:
   The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
-  ability to wake up the system from low-power suspend/standby modes.
+  ability to wake up the system from low-power suspend/standby modes and
+  optionally generate RTC alarm interrupts.
 
 allOf:
   - $ref: "rtc.yaml#"
@@ -24,8 +25,14 @@ properties:
     maxItems: 1
 
   interrupts:
-    description: the TIMER interrupt
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: the TIMER interrupt
+      - description: the ALARM interrupt
+    description:
+      The TIMER interrupt wakes the system from low-power suspend/standby modes.
+      An ALARM interrupt may be specified to interrupt the CPU when an RTC alarm
+      is enabled.
 
   clocks:
     description: clock reference in the 27MHz domain
@@ -42,3 +49,12 @@ examples:
         interrupt-parent = <&aon_pm_l2_intc>;
         clocks = <&upg_fixed>;
     };
+
+  - |
+    rtc@f041a080 {
+        compatible = "brcm,brcmstb-waketimer";
+        reg = <0xf041a080 0x14>;
+        interrupts-extended = <&aon_pm_l2_intc 0x04>,
+                              <&upg_aux_aon_intr2_intc 0x08>;
+        clocks = <&upg_fixed>;
+    };
-- 
2.25.1