IMX6SX LCD TFT spi

[LPs]

Hi all,

I'm struggling understanding the management of LCD with LCDIF.

I inited lcdif with DTB as follows

&lcdif1 {
  pinctrl-names = "default";
  pinctrl-0 = <&pinctrl_lcdif_dat
      &pinctrl_lcdif_ctrl>;
  lcd-supply = <&reg_lcd_3v3>;
  display = <&display0>;
  status = "okay";
  display0: display {
  bits-per-pixel = <24>;
  bus-width = <24>;
  display-timings {
  native-mode = <&timing0>;
  timing0: timing0 {
  clock-frequency = <6500000>; 
  hactive = <320>;
  vactive = <240>;
  hback-porch = <75>; 
  hfront-porch = <22>;z
  vback-porch = <18>;
  vfront-porch = <4>;
  hsync-len = <10>;
  vsync-len = <10>;
  hsync-active = <0>;
  vsync-active = <0>;
  de-active = <0>;
  pixelclk-active = <1>;
  };
  };
  };
};

My display woks and display linux splash screen and I'm able to launch my Qt application.

My display controller is HX8238-D. It has spi serial line that is need to set some parameters.

Questions are:

1. Is it mandatory to set parameters through spi channel?
2. Can I set it by dtb?
3. If yes where I can find the lcd spi driver?

Thank you in advance.

[igorpadykov]

Hi LPs

1. if it works fine with default lcd parameters, seems it is not necessary

2. I believe it can be set in board init file

3. suggest to ask driver from lcd vendor

Best regards

igor

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