Hello,
I am working on the touchscreen driver for DM814x. According to the DM81xx AM38xx PSP TouchScreen Driver Guide(http://processors.wiki.ti.com/index.php/DM81xx_AM38xx_PSP_TouchScreen_Driver_Guide ), I did
1. I enabled the LCD Backlight power. Now the LD1 on LCD Adapter Board is lighting. And I can access the touchscreen controller mXT224 with I2C bus.
2. I also set GPIO0_31 (TS GPIO interrupt) as input low.
Based on the linux driver(qt602240_ts.c), I configured the TOUCH_MULTI object and SPT_STECONFIG object and set reset command. After the device reset, I check the register info, matrix_x_size and matrix_y_size value has been updated. I thought that means device Reset is ok. But when I press, release or move on the touch screen panel, the message object always show “DETECT” status and reported always is 0xff. It suppose to can get different status message when press, release or move. Do you know if there are something I did wrong or I miss?
Thanks a lot,
Jian