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