| Intel GMA Bindings |
| ================== |
| |
| This is the Intel Graphics Media Accelerator. This binding supports selection |
| of display parameters only. |
| |
| |
| Required properties: |
| - compatible : "intel,gma"; |
| |
| Optional properties: |
| - intel,dp-hotplug : values for digital port hotplug, one cell per value for |
| ports B, C and D |
| - intel,panel-port-select : output port to use: 0=LVDS 1=DP_B 2=DP_C 3=DP_D |
| - intel,panel-power-cycle-delay : T4 time sequence (6 = 500ms) |
| |
| The following delays are in units of 0.1ms: |
| - intel,panel-power-up-delay : T1+T2 time sequence |
| - intel,panel-power-down-delay : T3 time sequence |
| - intel,panel-power-backlight-on-delay : T5 time sequence |
| - intel,panel-power-backlight-off-delay : Tx time sequence |
| |
| - intel,cpu-backlight : Value for CPU Backlight PWM |
| - intel,pch-backlight : Value for PCH Backlight PWM |
| |
| Example |
| ------- |
| |
| gma { |
| compatible = "intel,gma"; |
| intel,dp_hotplug = <0 0 0x06>; |
| intel,panel-port-select = <1>; |
| intel,panel-power-cycle-delay = <6>; |
| intel,panel-power-up-delay = <2000>; |
| intel,panel-power-down-delay = <500>; |
| intel,panel-power-backlight-on-delay = <2000>; |
| intel,panel-power-backlight-off-delay = <2000>; |
| intel,cpu-backlight = <0x00000200>; |
| intel,pch-backlight = <0x04000000>; |
| }; |
