About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Documentation / devicetree / bindings / gpio / gpio-tz1090-pdc.txt




Custom Search

Based on kernel version 3.13. Page generated on 2014-01-20 22:00 EST.

1	ImgTec TZ1090 PDC GPIO Controller
2	
3	Required properties:
4	- compatible: Compatible property value should be "img,tz1090-pdc-gpio".
5	
6	- reg: Physical base address of the controller and length of memory mapped
7	  region. This starts at and cover the SOC_GPIO_CONTROL registers.
8	
9	- gpio-controller: Specifies that the node is a gpio controller.
10	
11	- #gpio-cells: Should be 2. The syntax of the gpio specifier used by client
12	  nodes should have the following values.
13	     <[phandle of the gpio controller node]
14	      [PDC gpio number]
15	      [gpio flags]>
16	
17	  Values for gpio specifier:
18	  - GPIO number: a value in the range 0 to 6.
19	  - GPIO flags: bit field of flags, as defined in <dt-bindings/gpio/gpio.h>.
20	    Only the following flags are supported:
21	      GPIO_ACTIVE_HIGH
22	      GPIO_ACTIVE_LOW
23	
24	Optional properties:
25	- gpio-ranges: Mapping to pin controller pins (as described in
26	  Documentation/devicetree/bindings/gpio/gpio.txt)
27	
28	- interrupts: Individual syswake interrupts (other GPIOs cannot interrupt)
29	
30	
31	Example:
32	
33		pdc_gpios: gpio-controller@02006500 {
34			gpio-controller;
35			#gpio-cells = <2>;
36	
37			compatible = "img,tz1090-pdc-gpio";
38			reg = <0x02006500 0x100>;
39	
40			interrupt-parent = <&pdc>;
41			interrupts =	<8  IRQ_TYPE_NONE>,	/* Syswake 0 */
42					<9  IRQ_TYPE_NONE>,	/* Syswake 1 */
43					<10 IRQ_TYPE_NONE>;	/* Syswake 2 */
44			gpio-ranges = <&pdc_pinctrl 0 0 7>;
45		};
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.