xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunZodiac Inflight Innovations RAVE Supervisory Processor
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRAVE Supervisory Processor communicates with SoC over UART. It is
4*4882a593Smuzhiyunexpected that its Device Tree node is specified as a child of a node
5*4882a593Smuzhiyuncorresponding to UART controller used for communication.
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunRequired parent device properties:
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun - compatible: Should be one of:
10*4882a593Smuzhiyun	- "zii,rave-sp-niu"
11*4882a593Smuzhiyun	- "zii,rave-sp-mezz"
12*4882a593Smuzhiyun	- "zii,rave-sp-esb"
13*4882a593Smuzhiyun	- "zii,rave-sp-rdu1"
14*4882a593Smuzhiyun	- "zii,rave-sp-rdu2"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun - current-speed: Should be set to baud rate SP device is using
17*4882a593Smuzhiyun
18*4882a593SmuzhiyunRAVE SP consists of the following sub-devices:
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20*4882a593SmuzhiyunDevice				 Description
21*4882a593Smuzhiyun------				 -----------
22*4882a593Smuzhiyunrave-sp-wdt			: Watchdog
23*4882a593Smuzhiyunrave-sp-nvmem			: Interface to onboard EEPROM
24*4882a593Smuzhiyunrave-sp-backlight		: Display backlight
25*4882a593Smuzhiyunrave-sp-hwmon			: Interface to onboard hardware sensors
26*4882a593Smuzhiyunrave-sp-leds			: Interface to onboard LEDs
27*4882a593Smuzhiyunrave-sp-input			: Interface to onboard power button
28*4882a593Smuzhiyun
29*4882a593SmuzhiyunExample of usage:
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun	rdu {
32*4882a593Smuzhiyun		compatible = "zii,rave-sp-rdu2";
33*4882a593Smuzhiyun		current-speed = <1000000>;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun		watchdog {
36*4882a593Smuzhiyun			compatible = "zii,rave-sp-watchdog";
37*4882a593Smuzhiyun		};
38*4882a593Smuzhiyun	};
39*4882a593Smuzhiyun
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