zephyr,panel-timing

Vendor: Zephyr-specific binding

Description

Common timing settings for display panels. These timings can be added to
a panel under display-timings node. For example:

&lcdif {
  display-timings {
    compatible = "zephyr,panel-timing";
    hsync-len = <8>;
    hfront-porch = <32>;
    hback-porch = <32>;
    vsync-len = <2>;
    vfront-porch = <16>;
    vback-porch = <14>;
    hsync-active = <0>;
    vsync-active = <0>;
    de-active = <1>;
    pixelclk-active = <0>;
    clock-frequency = <62346240>;
  };
};

Properties

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

clock-frequency

int

 
Pixel clock for display controller in Hz. Must be at least as large as:
(height + vsync-len + vfront-porch + vback-porch) *
(width + hsync-len + hfront-porch + hback-porch) *
desired frame rate

hsync-len

int

 
Horizontal synchronization pulse duration of panel driven by this
controller, in pixels

This property is required.

vsync-len

int

 
Vertical synchronization pulse duration of panel driven by this
controller, in lines

This property is required.

hback-porch

int

 
Horizontal back porch duration of panel driven by this controller,
in pixels

This property is required.

vback-porch

int

 
Vertical back porch duration of panel driven by this controller, in lines

This property is required.

hfront-porch

int

 
Horizontal front porch duration of panel driven by this controller,
in pixels

This property is required.

vfront-porch

int

 
Vertical front porch duration of panel driven by this controller, in lines

This property is required.

hsync-active

int

 
Polarity of horizontal sync pulse
0 selects active low
1 selects active high

This property is required.

Legal values: 0, 1

vsync-active

int

 
Polarity of vertical sync pulse
0 selects active low
1 selects active high

This property is required.

Legal values: 0, 1

de-active

int

 
Polarity of data enable, sent with each horizontal interval.
0 selects active low
1 selects active high.

This property is required.

Legal values: 0, 1

pixelclk-active

int

 
Polarity of pixel clock. Selects which edge to drive data to display on.
0 drives pixel data on falling edge, and samples on rising edge.
1 drives pixel data on rising edge, and samples data on falling edge

This property is required.

Legal values: 0, 1

syncclk-active

int

 
Drive sync on rising or sample sync on falling edge. If not specified
then the controller uses the setup specified by pixelclk-active.
Use 0 to drive sync on falling edge
and sample sync on rising edge of pixel clock.
Use 1 to drive sync on rising edge
and sample sync on falling edge of pixel clock.

Legal values: 0, 1

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “zephyr,panel-timing” compatible.

(None)