From: Søren Andersen <san@xxxxxxx>
The NXP pcf85063 support two different quartz loads.
- 7 pF (default)
- 12.5 pF (minimum power consumption)
The pcf85063 needs to know the size of the external capacitor,
otherwise the RTC will have a bad precision (hours/week).
The power-on default is 7 pF
Add a property that tells if the external capacitor is 12.5 pF
Signed-off-by: Søren Andersen <san@xxxxxxx>
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
---
.../devicetree/bindings/rtc/nxp,pcf85063.txt | 19 +++++++++++++++++++
Documentation/devicetree/bindings/trivial-devices.txt | 1 -
2 files changed, 19 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt
diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt
new file mode 100644
index 000000000000..22ebb2ce52c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt
@@ -0,0 +1,19 @@
+* NXP PCF85063 Real Time Clock
+
+NXP PCF85063 Real Time Clock
+
+Required properties:
+- compatible: Should contain "nxp,pcf85063".
+- reg: I2C address for chip.
+
+Optional property:
+- nxp,quartz_load_12.5pF: The capacitive load on the quartz is 12.5 pF,
+ which differ from the default value of 7 pF
+
+Example:
+
+pcf85063: pcf85063@51 {
+ compatible = "nxp,pcf85063";
+ reg = <0x51>;
+ nxp,quartz_load_12.5pF;
+};
diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt
index 297dc82b67ad..440632682e31 100644
--- a/Documentation/devicetree/bindings/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/trivial-devices.txt
@@ -170,7 +170,6 @@ nxp,pca9557 8-bit I2C-bus and SMBus I/O port with reset
nxp,pcf2127 Real-time clock
nxp,pcf2129 Real-time clock
nxp,pcf8563 Real-time clock/calendar
-nxp,pcf85063 Tiny Real-Time Clock
oki,ml86v7667 OKI ML86V7667 video decoder
ovti,ov5642 OV5642: Color CMOS QSXGA (5-megapixel) Image Sensor with OmniBSI and Embedded TrueFocus
pericom,pt7c4338 Real-time Clock Module
--
2.12.0
