Re: it913x: probe of 8-001c failed with error -22

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On 11/25/2014 05:32 PM, kapetr@xxxxxxxxx wrote:
Hello.

U12.04 with newly installed 3.8 kernel:

3.8.0-44-generic #66~precise1-Ubuntu SMP Tue Jul 15 04:01:04 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux

USB dvb-t tuner:

Bus 001 Device 005: ID 048d:9135 Integrated Technology Express, Inc.
Zolid Mini DVB-T Stick

Newest V4L drivers installed. But there is an error in log by inserting
of the USB tuner:

-------------------
Nov 25 16:24:38 zly-hugo kernel: [  315.927923] usb 1-1.3: new
high-speed USB device number 5 using ehci-pci
Nov 25 16:24:38 zly-hugo kernel: [  316.021755] usb 1-1.3: New USB
device found, idVendor=048d, idProduct=9135
Nov 25 16:24:38 zly-hugo kernel: [  316.021760] usb 1-1.3: New USB
device strings: Mfr=0, Product=0, SerialNumber=0
Nov 25 16:24:38 zly-hugo kernel: [  316.023071] usb 1-1.3:
dvb_usb_af9035: prechip_version=83 chip_version=02 chip_type=9135
Nov 25 16:24:38 zly-hugo kernel: [  316.023443] usb 1-1.3: dvb_usb_v2:
found a 'ITE 9135 Generic' in cold state
Nov 25 16:24:38 zly-hugo kernel: [  316.023519] usb 1-1.3: dvb_usb_v2:
downloading firmware from file 'dvb-usb-it9135-02.fw'
Nov 25 16:24:38 zly-hugo mtp-probe: checking bus 1, device 5:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3"
Nov 25 16:24:38 zly-hugo kernel: [  316.119961] usb 1-1.3:
dvb_usb_af9035: firmware version=3.40.1.0
Nov 25 16:24:38 zly-hugo kernel: [  316.119974] usb 1-1.3: dvb_usb_v2:
found a 'ITE 9135 Generic' in warm state
Nov 25 16:24:38 zly-hugo kernel: [  316.120972] usb 1-1.3: dvb_usb_v2:
will pass the complete MPEG2 transport stream to the software demuxer
Nov 25 16:24:38 zly-hugo kernel: [  316.120996] DVB: registering new
adapter (ITE 9135 Generic)
Nov 25 16:24:38 zly-hugo mtp-probe: bus: 1, device: 5 was not an MTP device
Nov 25 16:24:38 zly-hugo kernel: [  316.123808] af9033 8-0038: firmware
version: LINK 3.40.1.0 - OFDM 3.40.1.0
Nov 25 16:24:38 zly-hugo kernel: [  316.123812] af9033 8-0038: Afatech
AF9033 successfully attached
Nov 25 16:24:38 zly-hugo kernel: [  316.123822] usb 1-1.3: DVB:
registering adapter 0 frontend 0 (Afatech AF9033 (DVB-T))...
Nov 25 16:24:38 zly-hugo kernel: [  316.125115] it913x: probe of 8-001c
failed with error -22
---------------------

What is wrong ?

it913x_probe() fails with error -EINVAL. There is only 2 ways it could fail, kzalloc() and regmap_init_i2c(). It must be later one.

Do you have regmap module installed?
What says: "modinfo regmap-i2c" command?

Antti
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