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TinkerBoard2 / kernel

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Raspbian official 7" touchscreen doesnt work on the 2S #2

Closed p1r473 closed 3 years ago

p1r473 commented 3 years ago

The Raspbian official 7" touchscreen doesnt work on the 2S like it did on the TinkerBoard and S

/sys/class/backlight is empty /sys/devices/platform/ff150000.i2c/i2c-3/3-0045/tinker_mcu_bl doesnt exist like it did on TinkerBoard

root@linaro-alip:/sys/devices/platform# dmesg | grep ili9
[    2.017431] tinker-mcu: tinker_mcu_ili9881c_probe: address = 0x36
[    2.023535] tinker-mcu: tinker_mcu_ili9881c_probe: i2c_id= 0x8
[    2.075209] tinker-mcu: tinker_mcu_ili9881c_probe: init_cmd_check[-6] failed, 0
root@linaro-alip:/sys/devices/platform# dmesg | grep 5406
[    6.117044] tinker-ft5406: tinker_ft5406_probe: address = 0x38
[    6.122899] tinker-ft5406: tinker_ft5406_probe: touch is on DSI-0
[    6.638485] tinker-ft5406: tinker_ft5406_probe: wait connected timeout