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LCD 8-bit data port mux/mapping [SOLVED]

Question asked by mat kattanek on Oct 30, 2017
Latest reply on Oct 31, 2017 by mat kattanek

Using currently imx6ul and trying to setup the lcd data port to run the  display over an 8-bit data port only.

 

When setting up the DTS file using  LCD_DATA16 through LCD_DATA23 I do not see any bit changes on the data

line:

        pinctrl_lcdif_dat: lcdifdatgrp {
            fsl,pins = <
                MX6UL_PAD_LCD_DATA16__LCDIF_DATA16  0x79
                MX6UL_PAD_LCD_DATA17__LCDIF_DATA17  0x79
                MX6UL_PAD_LCD_DATA18__LCDIF_DATA18  0x79
                MX6UL_PAD_LCD_DATA19__LCDIF_DATA19  0x79
                MX6UL_PAD_LCD_DATA20__LCDIF_DATA20  0x79
                MX6UL_PAD_LCD_DATA21__LCDIF_DATA21  0x79
                MX6UL_PAD_LCD_DATA22__LCDIF_DATA22  0x79
                MX6UL_PAD_LCD_DATA23__LCDIF_DATA23  0x79

            >;
        };

 

It seems like the bit controls are frozen. It works fine though when using LCD_DATA01 through LCD_DATA07.

Unfortunately I cant use these lines (0-7) on the final board, since I need to mux other signals.

 

Does someone have an idea how to setup this up properly?

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