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Maxime Riparda2ed00d2012-12-07 12:30:38 -08001* Solomon SSD1307 Framebuffer Driver
2
3Required properties:
Maxime Ripardbbc79082013-04-22 11:55:54 +02004 - compatible: Should be "solomon,<chip>fb-<bus>". The only supported bus for
Olliver Schinagl3ac58d52015-09-08 21:19:51 +02005 now is i2c, and the supported chips are ssd1305, ssd1306, ssd1307 and
6 ssd1309.
Maxime Riparda2ed00d2012-12-07 12:30:38 -08007 - reg: Should contain address of the controller on the I2C bus. Most likely
8 0x3c or 0x3d
9 - pwm: Should contain the pwm to use according to the OF device tree PWM
Maxime Ripardbbc79082013-04-22 11:55:54 +020010 specification [0]. Only required for the ssd1307.
Maxime Riparda2ed00d2012-12-07 12:30:38 -080011 - reset-gpios: Should contain the GPIO used to reset the OLED display
Maxime Ripardbbc79082013-04-22 11:55:54 +020012 - solomon,height: Height in pixel of the screen driven by the controller
13 - solomon,width: Width in pixel of the screen driven by the controller
14 - solomon,page-offset: Offset of pages (band of 8 pixels) that the screen is
15 mapped to.
Maxime Riparda2ed00d2012-12-07 12:30:38 -080016
17Optional properties:
18 - reset-active-low: Is the reset gpio is active on physical low?
Thomas Niederprümc89eacf2015-03-31 20:27:10 +020019 - solomon,segment-no-remap: Display needs normal (non-inverted) data column
20 to segment mapping
21 - solomon,com-seq: Display uses sequential COM pin configuration
22 - solomon,com-lrremap: Display uses left-right COM pin remap
23 - solomon,com-invdir: Display uses inverted COM pin scan direction
24 - solomon,com-offset: Number of the COM pin wired to the first display line
25 - solomon,prechargep1: Length of deselect period (phase 1) in clock cycles.
26 - solomon,prechargep2: Length of precharge period (phase 2) in clock cycles.
27 This needs to be the higher, the higher the capacitance
28 of the OLED's pixels is
Maxime Riparda2ed00d2012-12-07 12:30:38 -080029
30[0]: Documentation/devicetree/bindings/pwm/pwm.txt
31
32Examples:
33ssd1307: oled@3c {
34 compatible = "solomon,ssd1307fb-i2c";
35 reg = <0x3c>;
36 pwms = <&pwm 4 3000>;
37 reset-gpios = <&gpio2 7>;
38 reset-active-low;
39};
Thomas Niederprümc89eacf2015-03-31 20:27:10 +020040
41ssd1306: oled@3c {
42 compatible = "solomon,ssd1306fb-i2c";
43 reg = <0x3c>;
44 pwms = <&pwm 4 3000>;
45 reset-gpios = <&gpio2 7>;
46 reset-active-low;
47 solomon,com-lrremap;
48 solomon,com-invdir;
49 solomon,com-offset = <32>;
50};