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 - 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 16Optional properties: 17 - reset-gpios: The GPIO used to reset the OLED display, if available. See 18 Documentation/devicetree/bindings/gpio/gpio.txt for details. 19 - vbat-supply: The supply for VBAT 20 - solomon,segment-no-remap: Display needs normal (non-inverted) data column 21 to segment mapping 22 - solomon,col-offset: Offset of columns (COL/SEG) that the screen is mapped to. 23 - solomon,com-seq: Display uses sequential COM pin configuration 24 - solomon,com-lrremap: Display uses left-right COM pin remap 25 - solomon,com-invdir: Display uses inverted COM pin scan direction 26 - solomon,com-offset: Number of the COM pin wired to the first display line 27 - solomon,prechargep1: Length of deselect period (phase 1) in clock cycles. 28 - solomon,prechargep2: Length of precharge period (phase 2) in clock cycles. 29 This needs to be the higher, the higher the capacitance 30 of the OLED's pixels is 31 - solomon,dclk-div: Clock divisor 1 to 16 32 - solomon,dclk-frq: Clock frequency 0 to 15, higher value means higher 33 frequency 34 - solomon,lookup-table: 8 bit value array of current drive pulse widths for 35 BANK0, and colors A, B, and C. Each value in range 36 of 31 to 63 for pulse widths of 32 to 64. Color D 37 is always width 64. 38 - solomon,area-color-enable: Display uses color mode 39 - solomon,low-power. Display runs in low power mode 40 41[0]: Documentation/devicetree/bindings/pwm/pwm.txt 42 43Examples: 44ssd1307: oled@3c { 45 compatible = "solomon,ssd1307fb-i2c"; 46 reg = <0x3c>; 47 pwms = <&pwm 4 3000>; 48 reset-gpios = <&gpio2 7>; 49}; 50 51ssd1306: oled@3c { 52 compatible = "solomon,ssd1306fb-i2c"; 53 reg = <0x3c>; 54 pwms = <&pwm 4 3000>; 55 reset-gpios = <&gpio2 7>; 56 solomon,com-lrremap; 57 solomon,com-invdir; 58 solomon,com-offset = <32>; 59 solomon,lookup-table = /bits/ 8 <0x3f 0x3f 0x3f 0x3f>; 60}; 61