1* Solomon SSD1307 Framebuffer Driver
2
3Required 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, ssd1307 and
6    ssd1309.
7  - 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
10         specification [0]. Only required for the ssd1307.
11  - reset-gpios: Should contain the GPIO used to reset the OLED display
12  - 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.
16
17Optional properties:
18  - reset-active-low: Is the reset gpio is active on physical low?
19  - 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
29
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};
40
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};
51