Other Parts Discussed in Thread: TFP410
Hello,
I'm in the process of filling the following information in the Linux kernel device tree:
- hfront-porch, hback-porch, hsync-len: horizontal display timing parameters
in pixels
vfront-porch, vback-porch, vsync-len: vertical display timing parameters in
lines
Looking at the datasheet( https://www.ti.com/lit/ds/symlink/tfp410-ep.pdf ) didn't reveal much to me.
Can I please get some assistance in determining the value for the front\back porch and vsync len for both horizontal and vertical value?
Below is the complete device tree entry:
&lcdif {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lcdif_dat
&pinctrl_lcdif_ctrl>;
display = <&display0>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lcdif_dat
&pinctrl_lcdif_ctrl>;
display = <&display0>;
status = "okay";
display0: display {
bits-per-pixel = <24>;
bus-width = <24>;
bits-per-pixel = <24>;
bus-width = <24>;
display-timings {
native-mode = <&timing0>;
timing0: dvi {
/* 1024x768p60 */
clock-frequency = <65000000>;
hactive = <1024>;
hfront-porch = <1>;
hback-porch = <1>;
hsync-len = <2>;
vactive = <768>;
vfront-porch = <1>;
vback-porch = <1>;
vsync-len = <2>;
native-mode = <&timing0>;
timing0: dvi {
/* 1024x768p60 */
clock-frequency = <65000000>;
hactive = <1024>;
hfront-porch = <1>;
hback-porch = <1>;
hsync-len = <2>;
vactive = <768>;
vfront-porch = <1>;
vback-porch = <1>;
vsync-len = <2>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <0>;
};
};
};
};
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <0>;
};
};
};
};
