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authorHeiko Schocher <hs@denx.de>2015-10-16 14:31:29 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2015-11-08 16:12:29 +0300
commita39a6405d5f949bc651694028a55d74c514ef1f9 (patch)
treee4d7958c093e69a71233c55e91cf73a7c51f2239 /Documentation
parentdbb812b141f3bf3dbea75353da799da3d3373d53 (diff)
downloadlinux-a39a6405d5f949bc651694028a55d74c514ef1f9.tar.xz
rtc: pcf8563: add CLKOUT to common clock framework
Add the clkout output clk to the common clock framework. Disable the CLKOUT of the RTC after power-up. After power-up/reset of the RTC, CLKOUT is enabled by default, with CLKOUT enabled the RTC chip has 2-3 times higher power consumption. Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/rtc/pcf8563.txt25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/pcf8563.txt b/Documentation/devicetree/bindings/rtc/pcf8563.txt
new file mode 100644
index 000000000000..72f6d2c9665e
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/pcf8563.txt
@@ -0,0 +1,25 @@
+* Philips PCF8563/Epson RTC8564 Real Time Clock
+
+Philips PCF8563/Epson RTC8564 Real Time Clock
+
+Required properties:
+see: Documentation/devicetree/bindings/i2c/trivial-devices.txt
+
+Optional property:
+- #clock-cells: Should be 0.
+- clock-output-names:
+ overwrite the default clock name "pcf8563-clkout"
+
+Example:
+
+pcf8563: pcf8563@51 {
+ compatible = "nxp,pcf8563";
+ reg = <0x51>;
+ #clock-cells = <0>;
+};
+
+device {
+...
+ clocks = <&pcf8563>;
+...
+};