dt-bindings: rtc: ds1307: let aux-voltage-chargeable supersede trickle-diode-disable

trickle-diode-disable is deprecated, so reflect that in the driver's
binding and add the new aux-voltage-chargeable.

Signed-off-by: Bastian Krause <bst@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200917183246.19446-3-bst@pengutronix.de

diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
index 66f0a31ae9ce68b947a501f63fda5f1f69194753..08ea9734da80e9cca1168f76ca1a65b08915dbb9 100644 (file)
--- a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
+++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
@@ -31,9 +31,16 @@ Optional properties:
        Selected resistor for trickle charger
        Possible values are 250, 2000, 4000
        Should be given if trickle charger should be enabled
-- trickle-diode-disable : ds1339, ds1340 and ds 1388 only
+- aux-voltage-chargeable: ds1339, ds1340 and ds1388 only
+       Tells whether the battery/supercap of the RTC (if any) is
+       chargeable or not.
+       Possible values are 0 (not chargeable), 1 (chargeable)
+
+Deprecated properties:
+- trickle-diode-disable : ds1339, ds1340 and ds1388 only
        Do not use internal trickle charger diode
        Should be given if internal trickle charger diode should be disabled
+       (superseded by aux-voltage-chargeable)
 
 Example:
        ds1339: rtc@68 {