Lines Matching +full:remote +full:- +full:bus

1 Pinctrl-based I2C Bus DeMux
3 This binding describes an I2C bus demultiplexer that uses pin multiplexing to
10     +-------------------------------+
12     |                               |   +-----+  +-----+
13     |   +------------+              |   | dev |  | dev |
14     |   |I2C IP Core1|--\           |   +-----+  +-----+
15     |   +------------+   \-------+  |      |        |
16     |                    |Pinctrl|--|------+--------+
17     |   +------------+   +-------+  |
18     |   |I2C IP Core2|--/           |
19     |   +------------+              |
21     +-------------------------------+
24 - compatible: "i2c-demux-pinctrl"
25 - i2c-parent: List of phandles of I2C masters available for selection. The first
27 - i2c-bus-name: The name of this bus. Also needed as pinctrl-name for the I2C
30 Furthermore, I2C mux properties and child nodes. See i2c-mux.txt in this
35 Here is a snipplet for a bus to be demuxed. It contains various i2c clients for
36 HDMI, so the bus is named "i2c-hdmi":
40 		compatible = "i2c-demux-pinctrl";
41 		i2c-parent = <&gpioi2c>, <&iic2>, <&i2c2>;
42 		i2c-bus-name = "i2c-hdmi";
43 		#address-cells = <1>;
44 		#size-cells = <0>;
46 		ak4643: sound-codec@12 {
47 			compatible = "asahi-kasei,ak4643";
49 			#sound-dai-cells = <0>;
53 		composite-in@20 {
56 			remote = <&vin1>;
60 					bus-width = <8>;
61 					remote-endpoint = <&vin1ep0>;
69 			interrupt-parent = <&gpio1>;
72 			adi,input-depth = <8>;
73 			adi,input-colorspace = "rgb";
74 			adi,input-clock = "1x";
75 			adi,input-style = <1>;
76 			adi,input-justification = "evenly";
79 				#address-cells = <1>;
80 				#size-cells = <0>;
85 						remote-endpoint = <&du_out_lvds0>;
92 						remote-endpoint = <&hdmi_con>;
99 And for clarification, here are the snipplets for the i2c-parents:
102 		#address-cells = <1>;
103 		#size-cells = <0>;
104 		compatible = "i2c-gpio";
108 		i2c-gpio,delay-us = <5>;
114 	pinctrl-0 = <&i2c2_pins>;
115 	pinctrl-names = "i2c-hdmi";
117 	clock-frequency = <100000>;
123 	pinctrl-0 = <&iic2_pins>;
124 	pinctrl-names = "i2c-hdmi";
126 	clock-frequency = <100000>;
131 - pinctrl properties for the parent I2C controllers need a pinctrl state
132   with the same name as i2c-bus-name, not "default"!
134 - the i2c masters must have their status "disabled". This driver will