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 };