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Documentation / devicetree / bindings / rtc / rtc-omap.txt




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 EST.

1	TI Real Time Clock
2	
3	Required properties:
4	- compatible:
5		- "ti,da830-rtc"  - for RTC IP used similar to that on DA8xx SoC family.
6		- "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family.
7				    This RTC IP has special WAKE-EN Register to enable
8				    Wakeup generation for event Alarm. It can also be
9				    used to control an external PMIC via the
10				    pmic_power_en pin.
11		- "ti,am4372-rtc" - for RTC IP used similar to that on AM437X SoC family.
12	- reg: Address range of rtc register set
13	- interrupts: rtc timer, alarm interrupts in order
14	- interrupt-parent: phandle for the interrupt controller
15	
16	Optional properties:
17	- system-power-controller: whether the rtc is controlling the system power
18	  through pmic_power_en
19	- clocks: Any internal or external clocks feeding in to rtc
20	- clock-names: Corresponding names of the clocks
21	- pinctrl-0: a phandle pointing to the pin settings for the device
22	- pinctrl-names: should be "default"
23	
24	Optional subnodes:
25	- generic pinctrl node
26	
27	Required pinctrl subnodes properties:
28	- pins - Names of ext_wakeup pins to configure
29	
30	Optional pinctrl subnodes properties:
31	- input-enable - Enables ext_wakeup
32	- ti,active-high - Set input active high (by default active low)
33	
34	Example:
35	
36	rtc@1c23000 {
37		compatible = "ti,da830-rtc";
38		reg = <0x23000 0x1000>;
39		interrupts = <19
40			      19>;
41		interrupt-parent = <&intc>;
42		system-power-controller;
43		clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
44		clock-names = "ext-clk", "int-clk";
45	
46		pinctrl-0 = <&ext_wakeup>;
47		pinctrl-names = "default";
48	
49		ext_wakeup: ext-wakeup {
50			pins = "ext_wakeup0";
51			input-enable;
52			ti,active-high;
53		};
54	};
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