xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593SmuzhiyunBindings for MEN A21 Watchdog device connected to GPIO lines
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible: "men,a021-wdt"
5*4882a593Smuzhiyun- gpios: Specifies the pins that control the Watchdog, order:
6*4882a593Smuzhiyun  1: Watchdog enable
7*4882a593Smuzhiyun  2: Watchdog fast-mode
8*4882a593Smuzhiyun  3: Watchdog trigger
9*4882a593Smuzhiyun  4: Watchdog reset cause bit 0
10*4882a593Smuzhiyun  5: Watchdog reset cause bit 1
11*4882a593Smuzhiyun  6: Watchdog reset cause bit 2
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunOptional properties:
14*4882a593Smuzhiyun- None
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunExample:
17*4882a593Smuzhiyun	watchdog {
18*4882a593Smuzhiyun		compatible ="men,a021-wdt";
19*4882a593Smuzhiyun		gpios = <&gpio3 9  1	/* WD_EN */
20*4882a593Smuzhiyun			 &gpio3 10 1	/* WD_FAST */
21*4882a593Smuzhiyun			 &gpio3 11 1	/* WD_TRIG */
22*4882a593Smuzhiyun			 &gpio3 6  1	/* RST_CAUSE[0] */
23*4882a593Smuzhiyun			 &gpio3 7  1	/* RST_CAUSE[1] */
24*4882a593Smuzhiyun			 &gpio3 8  1>;	/* RST_CAUSE[2] */
25*4882a593Smuzhiyun	};
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