linux-kernel - [PATCH v2 1/3] dt-bindings: rtc: add trickle-voltage-millivolt

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Message-Id: <20201007220506.360469-1-alexandre.belloni@bootlin.com>
Date:   Thu,  8 Oct 2020 00:05:04 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] dt-bindings: rtc: add trickle-voltage-millivolt

Some RTCs have a trickle charge that is able to output different voltages
depending on the type of the connected auxiliary power (battery, supercap,
...). Add a property allowing to specify the necessary voltage.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---

Changes in v2:
 - use millivolt suffix instead of mV

 Documentation/devicetree/bindings/rtc/rtc.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml
index ee237b2ed66a..93f04d5e5307 100644
--- a/Documentation/devicetree/bindings/rtc/rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/rtc.yaml
@@ -42,6 +42,13 @@ properties:
       Selected resistor for trickle charger. Should be given
       if trickle charger should be enabled.
 
+  trickle-voltage-mV:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Selected voltage for trickle charger. Should be given
+      if trickle charger should be enabled and the trickle voltage is different
+      from the RTC main power supply.
+
   wakeup-source:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
-- 
2.26.2