[meta-freescale] I.MX6 Atmel mxt touchscreen

[eien sakebe]

Dears,
i've some troubles connecting this touchscreen to my different I.MX6 boards
(including Sabre Auto, SABRE for Smart Devices).
When i connect the touchscreen to my main machine it works perfectly, i get
the following dmesg
[  986.006296] usb 2-1.2: new full-speed USB device number 3 using ehci-pci
[  986.107245] usb 2-1.2: New USB device found, idVendor=03eb,
idProduct=2118
[  986.107254] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[  986.107260] usb 2-1.2: Product: Atmel mXT Digitizer (S)
[  986.107264] usb 2-1.2: Manufacturer: Atmel
[  986.243058] hidraw: raw HID events driver (C) Jiri Kosina
[  986.252890] usbcore: registered new interface driver usbhid
[  986.252893] usbhid: USB HID core driver
[  986.281648] hid-generic 0003:03EB:2118.0002: hiddev0,hidraw0: USB HID
v2.00 Device [Atmel Atmel mXT Digitizer (S)] on usb-0000:00:1d.0-1.2/input1
[  986.287559] input: Atmel Atmel mXT Digitizer (S) as
/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/0003:03EB:2118.0001/input/input24

However, when i connect the touchscreen to my demo boards nothing works,
and i can see the following output
usb 1-1.4: new full-speed USB device number 5 using ci_hdrc
imx_usb 2184200.usb: Can't register ci_hdrc platform device, err=-517
platform 2184200.usb: Driver imx_usb requests probe deferral
hid-generic 0003:03EB:2118.0003: device has no listeners, quitting
imx_usb 2184200.usb: Can't register ci_hdrc platform device, err=-517
platform 2184200.usb: Driver imx_usb requests probe deferral
usb 1-1.2: USB disconnect, device number 4
EXT3-fs error (device sda2): ext3_find_entry: reading directory #51912
offset 0

Any begining of idea please ?
Thanks
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