diff options
author | 2016-04-11 10:41:07 +0300 | |
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committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt b/kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt new file mode 100644 index 000000000..eb31ed47a --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/display/ssd1307fb.txt @@ -0,0 +1,50 @@ +* Solomon SSD1307 Framebuffer Driver + +Required properties: + - compatible: Should be "solomon,<chip>fb-<bus>". The only supported bus for + now is i2c, and the supported chips are ssd1305, ssd1306, ssd1307 and + ssd1309. + - reg: Should contain address of the controller on the I2C bus. Most likely + 0x3c or 0x3d + - pwm: Should contain the pwm to use according to the OF device tree PWM + specification [0]. Only required for the ssd1307. + - reset-gpios: Should contain the GPIO used to reset the OLED display + - solomon,height: Height in pixel of the screen driven by the controller + - solomon,width: Width in pixel of the screen driven by the controller + - solomon,page-offset: Offset of pages (band of 8 pixels) that the screen is + mapped to. + +Optional properties: + - reset-active-low: Is the reset gpio is active on physical low? + - solomon,segment-no-remap: Display needs normal (non-inverted) data column + to segment mapping + - solomon,com-seq: Display uses sequential COM pin configuration + - solomon,com-lrremap: Display uses left-right COM pin remap + - solomon,com-invdir: Display uses inverted COM pin scan direction + - solomon,com-offset: Number of the COM pin wired to the first display line + - solomon,prechargep1: Length of deselect period (phase 1) in clock cycles. + - solomon,prechargep2: Length of precharge period (phase 2) in clock cycles. + This needs to be the higher, the higher the capacitance + of the OLED's pixels is + +[0]: Documentation/devicetree/bindings/pwm/pwm.txt + +Examples: +ssd1307: oled@3c { + compatible = "solomon,ssd1307fb-i2c"; + reg = <0x3c>; + pwms = <&pwm 4 3000>; + reset-gpios = <&gpio2 7>; + reset-active-low; +}; + +ssd1306: oled@3c { + compatible = "solomon,ssd1306fb-i2c"; + reg = <0x3c>; + pwms = <&pwm 4 3000>; + reset-gpios = <&gpio2 7>; + reset-active-low; + solomon,com-lrremap; + solomon,com-invdir; + solomon,com-offset = <32>; +}; |