From: "Kevin P. Fleming" <kevin+linux@km6g.us>
To: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org
Cc: "Kevin P. Fleming" <kevin+linux@km6g.us>,
Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh+dt@kernel.org>
Subject: [PATCH 1/3 v3] dt-bindings: abx80x: Add autocal-filter property
Date: Mon, 15 Jun 2020 06:51:11 -0400 [thread overview]
Message-ID: <20200615105113.57770-1-kevin+linux@km6g.us> (raw)
Add a property to allow control of the autocalibration filter
capacitor.
Signed-off-by: Kevin P. Fleming <kevin+linux@km6g.us>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Rob Herring <robh+dt@kernel.org>
To: linux-rtc@vger.kernel.org
To: devicetree@vger.kernel.org
---
v3: corrected whitespace
Documentation/devicetree/bindings/rtc/abracon,abx80x.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
index 2405e35a1bc0f..1b606e33d1a83 100644
--- a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
+++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
@@ -29,3 +29,11 @@ and valid to enable charging:
- "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V)
- "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output
resistor, the other values are in kOhm.
+
+All of the devices can have a 47pf capacitor attached to increase the
+autocalibration accuracy of their RC oscillators. To enable or disable usage
+of the capacitor the following property can be defined:
+
+ - "abracon,autocal-filter": should be <0> or <1>. 0 indicates that there
+ is no capacitor attached, 1 indicates that there
+ is a capacitor attached.
--
2.26.2
next reply other threads:[~2020-06-15 10:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 10:51 Kevin P. Fleming [this message]
2020-06-15 10:51 ` [PATCH 2/3] rtc: abx80x: Add utility function for writing configuration key Kevin P. Fleming
2020-06-15 10:51 ` [PATCH 3/3 v3] rtc: abx80x: Add support for autocalibration filter capacitor Kevin P. Fleming
2020-07-13 18:39 ` [PATCH 1/3 v3] dt-bindings: abx80x: Add autocal-filter property Rob Herring
2020-07-13 22:05 ` Kevin P. Fleming
2020-09-15 16:16 ` Alexandre Belloni
2020-07-26 19:40 ` Alexandre Belloni
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