[PATCH v2 1/2] dt-bindings: rtc: Add property for Raspberry Pi 5 RTC

[Sander Speetjens <sander.speetjens@gmail.com>]

Add charging-voltage-millivolt property for the Raspberry Pi 5 RTC.

V1 -> V2: As discussed with Krzysztof Kozlowski, this property is folded into
the existing raspberrypi,bcm2835-firmware properties.

Signed-off-by: Sander Speetjens <sander.speetjens@gmail.com>
---
 .../bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index 983ea80eaec9..1a0432510bee 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -133,6 +133,11 @@ properties:
     required:
       - compatible
 
+  charging-voltage-millivolt:
+    $ref: /schemas/rtc/rtc.yaml#/properties/charging-voltage-millivolt
+    minimum: 1300
+    maximum: 5000
+
 required:
   - compatible
   - mboxes
@@ -171,5 +176,7 @@ examples:
             touchscreen-size-x = <800>;
             touchscreen-size-y = <480>;
         };
+
+        trickle-charge-millivolt = <3300>;
     };
 ...
-- 
2.55.0