linux-kernel - PROBLEM: lenovo yoga 11e touchscreen (baytrail SoC) does not work on 4.0.0 rc2

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Date:	Wed, 04 Mar 2015 17:35:22 -0500
From:	Matthew Hiles <matthew.hiles@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: PROBLEM: lenovo yoga 11e touchscreen (baytrail SoC) does not work
 on 4.0.0 rc2

[1.] One line summary of the problem: Touchscreen on a Lenovo Yoga 11e does not work under 4.0 rc2
[2.] Full description of the problem/report: See below
[3.] Keywords (i.e., modules, networking, kernel): hid-i2c, touchscreen
[4.] Kernel version (from /proc/version): 4.0
[5.] Output of Oops.. message (if applicable) with symbolic information
      resolved (see Documentation/oops-tracing.txt) n/a
[6.] A small shell script or example program which triggers the
      problem (if possible) n/a
[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
[7.2.] Processor information (from /proc/cpuinfo): see attached cpuinfo
[7.3.] Module information (from /proc/modules):
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem): See attached
[7.5.] PCI information ('lspci -vvv' as root) see attached lspci
[7.6.] SCSI information (from /proc/scsi/scsi)
[7.7.] Other information that might be relevant to the problem
        (please look in /proc and include all information that you
        think to be relevant):
[X.] Other notes, patches, fixes, workarounds:

	Relevant excerpt from dmesg.log (also attached):
	
[    3.763182] i2c_hid i2c-ITE8386:00: Could not register for ITE8386:00 interrupt, irq = -1, ret = -22
[    3.773742] i2c_hid: probe of i2c-ITE8386:00 failed with error -22
[    3.788298] i2c_hid i2c-ATML1000:00: Could not register for ATML1000:00 interrupt, irq = -1, ret = -22
[    3.806867] i2c_hid: probe of i2c-ATML1000:00 failed with error -22

I also included the output of /proc/bus/input/devices (attached as bus-input-devices).

I get the same above dmesg errors on 3.18.6 and 3.19. I saw that a lot of patches specific to the baytrail SoC
went into 4.0 rc2 and thought I'd give it a shot.

I'm back to running my distro's "stable" kernel version which is 3.18.6 because wifi (iwlwifi) is broken in 4.0 as well
(there's a stack trace in the included dmesg.log file), but if anyone wants me to try change a few settings or recompiling
with different options, I can do that.



Regards,

Matthew


View attachment "cpuinfo" of type "text/plain" (3708 bytes)

View attachment "lspci" of type "text/plain" (21158 bytes)

View attachment "dmesg.log" of type "text/x-log" (68560 bytes)

View attachment "bus-input-devices" of type "text/plain" (3165 bytes)

View attachment ".config" of type "text/plain" (160961 bytes)

View attachment "iomem" of type "text/plain" (2548 bytes)

View attachment "ioports" of type "text/plain" (1265 bytes)