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Documentation / devicetree / bindings / video / ssd1307fb.txt




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Based on kernel version 4.3. Page generated on 2015-11-02 12:48 EST.

1	* Solomon SSD1307 Framebuffer Driver
2	
3	Required properties:
4	  - compatible: Should be "solomon,<chip>fb-<bus>". The only supported bus for
5	    now is i2c, and the supported chips are ssd1305, ssd1306 and ssd1307.
6	  - reg: Should contain address of the controller on the I2C bus. Most likely
7	         0x3c or 0x3d
8	  - pwm: Should contain the pwm to use according to the OF device tree PWM
9	         specification [0]. Only required for the ssd1307.
10	  - reset-gpios: Should contain the GPIO used to reset the OLED display
11	  - solomon,height: Height in pixel of the screen driven by the controller
12	  - solomon,width: Width in pixel of the screen driven by the controller
13	  - solomon,page-offset: Offset of pages (band of 8 pixels) that the screen is
14	    mapped to.
15	
16	Optional properties:
17	  - reset-active-low: Is the reset gpio is active on physical low?
18	  - solomon,segment-no-remap: Display needs normal (non-inverted) data column
19	                              to segment mapping
20	  - solomon,com-seq: Display uses sequential COM pin configuration
21	  - solomon,com-lrremap: Display uses left-right COM pin remap
22	  - solomon,com-invdir: Display uses inverted COM pin scan direction
23	  - solomon,com-offset: Number of the COM pin wired to the first display line
24	  - solomon,prechargep1: Length of deselect period (phase 1) in clock cycles.
25	  - solomon,prechargep2: Length of precharge period (phase 2) in clock cycles.
26	                         This needs to be the higher, the higher the capacitance
27	                         of the OLED's pixels is
28	
29	[0]: Documentation/devicetree/bindings/pwm/pwm.txt
30	
31	Examples:
32	ssd1307: oled@3c {
33	        compatible = "solomon,ssd1307fb-i2c";
34	        reg = <0x3c>;
35	        pwms = <&pwm 4 3000>;
36	        reset-gpios = <&gpio2 7>;
37	        reset-active-low;
38	};
39	
40	ssd1306: oled@3c {
41	        compatible = "solomon,ssd1306fb-i2c";
42	        reg = <0x3c>;
43	        pwms = <&pwm 4 3000>;
44	        reset-gpios = <&gpio2 7>;
45	        reset-active-low;
46	        solomon,com-lrremap;
47	        solomon,com-invdir;
48	        solomon,com-offset = <32>;
49	};
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