linux-kernel - [PATCH 1/2] dt-bindings: rtc: add properties to set battery-related functions

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Date:   Wed,  2 Aug 2023 15:11:52 -0400
From:   Hugo Villeneuve <hugo@...ovil.com>
To:     a.zummo@...ertech.it, alexandre.belloni@...tlin.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org
Cc:     linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, hugo@...ovil.com,
        bruno.thomsen@...il.com, Hugo Villeneuve <hvilleneuve@...onoff.com>
Subject: [PATCH 1/2] dt-bindings: rtc: add properties to set battery-related functions

From: Hugo Villeneuve <hvilleneuve@...onoff.com>

These properties can be defined in the board's device tree to set the
default power-on values for battery-related functions.

Signed-off-by: Hugo Villeneuve <hvilleneuve@...onoff.com>
---
 .../devicetree/bindings/rtc/rtc.yaml          | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml
index efb66df82782..0217d229e3fa 100644
--- a/Documentation/devicetree/bindings/rtc/rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/rtc.yaml
@@ -26,6 +26,25 @@ properties:
       0: not chargeable
       1: chargeable
 
+  battery-low-detect:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description: |
+      For RTC devices supporting a backup battery/supercap, this flag can be
+      used to configure the battery low detection reporting function:
+      0: disabled
+      1: enabled
+
+  battery-switch-over:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description: |
+      For RTC devices supporting a backup battery/supercap, this flag can be
+      used to configure the battery switch over when the main voltage source is
+      turned off:
+      0: disabled
+      1: enabled
+
   quartz-load-femtofarads:
     description:
       The capacitive load of the quartz(x-tal), expressed in femto
-- 
2.30.2