xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/rtc/nxp,pcf8523.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun* NXP PCF8523 Real Time Clock
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible: Should contain "nxp,pcf8523".
5*4882a593Smuzhiyun- reg: I2C address for chip.
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunOptional property:
8*4882a593Smuzhiyun- quartz-load-femtofarads: The capacitive load of the quartz(x-tal),
9*4882a593Smuzhiyun  expressed in femto Farad (fF). Valid values are 7000 and 12500.
10*4882a593Smuzhiyun  Default value (if no value is specified) is 12500fF.
11*4882a593Smuzhiyun
12*4882a593SmuzhiyunExample:
13*4882a593Smuzhiyun
14*4882a593Smuzhiyunpcf8523: rtc@68 {
15*4882a593Smuzhiyun	compatible = "nxp,pcf8523";
16*4882a593Smuzhiyun	reg = <0x68>;
17*4882a593Smuzhiyun	quartz-load-femtofarads = <7000>;
18*4882a593Smuzhiyun};
19