So, now when I power on the board i get this errors:
------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:536 sysfs_add_one+0x78/0x98()
sysfs: cannot create duplicate filename '/devices/platform/i2c-riic.3'
Modules linked in:
[<c00132c4>] (unwind_backtrace+0x0/0xe0) from [<c001e7b0>] (warn_slowpath_common+0x4c/0x64)
[<c001e7b0>] (warn_slowpath_common+0x4c/0x64) from [<c001e7f4>] (warn_slowpath_fmt+0x2c/0x3c)
[<c001e7f4>] (warn_slowpath_fmt+0x2c/0x3c) from [<c00e9ec4>] (sysfs_add_one+0x78/0x98)
[<c00e9ec4>] (sysfs_add_one+0x78/0x98) from [<c00ea074>] (create_dir+0x58/0xb0)
[<c00ea074>] (create_dir+0x58/0xb0) from [<c00ea3e0>] (sysfs_create_dir+0xbc/0xdc)
[<c00ea3e0>]te_dir+0xbc/0xdc) from [<c01c8e9c>] (kobject_add_internal+0xd4/0x1d0)
[<c01c8e9c>] (kobject_add_internal+0xd4/0x1d0) from [<c01c91e8>] (kobject_add+0x6c/0x8c)
[<c01c91e8>] (kobject_add+0x6c/0x8c) from [<c0211508>] (device_add+0xe4/0x558)
[<c0211508>] (device_add+0xe4/0x558) from [<c0214df8>] (platform_device_add+0x130/0x1c4)
[<c0214df8>] (platform_device_add+0x130/0x1c4) from [<c0215248>] (platform_device_register_full+0x90/0xcc)
[<c0215248>] (platform_device_register_full+0x90/0xcc) from [<c04be720>] (hachiko_init+0x1a8/0x2f8)
[<c04be720>] (hachiko_init+0x1a8/0x2f8) from [<c04ba744>] (customize_machine+0x1c/0x28)
[<c04ba744>] (customize_machine+0x1c/0x28) from [<c0008624>] (do_one_initcall+0x8c/0x150)
[<c0008624>] (do_one_initcall+0x8c/0x150) from [<c04b9810>] (kernel_init_freeable+0xf4/0x1b4)
[<c04b9810>] (kernel_init_freeable+0xf4/0x1b4) from [<c038eb2c>] (kernel_init+0x8/0xe4)
[<c038eb2c>] (kernel_init+0x8/0xe4) from [<c000d9d8>] (ret_from_fork+0x14/0x3c)
---[ end trace 20e163409d1e28f9 ]---
------------[ cut here ]------------
WARNING: at lib/kobject.c:196 kobject_add_internal+0x180/0x1d0()
kobject_add_internal failed for i2c-riic.3 with -EEXIST, don't try to register things with the same name in the same directory.
Modules linked in:
[<c00132c4>] (unwind_backtrace+0x0/0xe0) from [<c001e7b0>] (warn_slowpath_common+0x4c/0x64)
[<c001e7b0>] (warn_slowpath_common+0x4c/0x64) from [<c001e7f4>] (warn_slowpath_fmt+0x2c/0x3c)
[<c001e7f4>] (warn_slowpath_fmt+0x2c/0x3c) from [<c01c8f48>] (kobject_add_internal+0x180/0x1d0)
[<c01c8f48>] (kobject_add_internal+0x180/0x1d0) from [<c01c91e8>] (kobject_add+0x6c/0x8c)
[<c01c91e8>] (kobject_add+0x6c/0x8c) from [<c0211508>] (device_add+0xe4/0x558)
[<c0211508>] (device_add+0xe4/0x558) from [<c0214df8>] (platform_device_add+0x130/0x1c4)
[<c0214df8>] (platform_device_add+0x130/0x1c4) from [<c0215248>] (platform_device_register_full+0x90/0xcc)
[<c0215248>] (platform_device_register_full+0x90/0xcc) from [<c04be720>] (hachiko_init+0x1a8/0x2f8)
[<c04be720>] (hachiko_init+0x1a8/0x2f8) from [<c04ba744>] (customize_machine+0x1c/0x28)
[<c04ba744>] (customize_machine+0x1c/0x28) from [<c0008624>] (do_one_initcall+0x8c/0x150)
[<c0008624>] (do_one_initcall+0x8c/0x150) from [<c04b9810>] (kernel_init_freeable+0xf4/0x1b4)
[<c04b9810>] (kernel_init_freeable+0xf4/0x1b4) from [<c038eb2c>] (kernel_init+0x8/0xe4)
[<c038eb2c>] (kernel_init+0x8/0xe4) from [<c000d9d8>] (ret_from_fork+0x14/0x3c)
---[ end trace 20e163409d1e28fa ]---
I verified with an oscilloscope SDA SCL and the interrupt pin. When I touch the the screen I can see waveforms, unfortunately I haven't a protocol analyzer so I can't see what's going on.