i.MX ProcessorsのトピックRe: Re: Touch problem with Linux

Touch problem with Linux

vishvapathi — Tue, 29 Oct 2013 14:17:49 GMT

Hi,

Touch Screen works fine with Android, but not in Linux image. while booting in linux getting following error in Linux.

>>>>> ct360_get_vendor() called <<<<<

Chip ID: 0x1

Chip data allocation failed: 0x1

i2c-core: driver [generic_ts] using legacy suspend method

i2c-core: driver [generic_ts] using legacy resume method

i2c-core: driver [isl29023] using legacy suspend method

i2c-core: driver [isl29023] using legacy resume method

snvs_rtc snvs_rtc.0: rtc core: registered snvs_rtc as rtc0

i2c /dev entries driver

Attached dmesg of android for reference.

Any help is appreciated.

Original Attachment has been moved to: android-boot-screen.zip

Re: Touch problem with Linux

daiane_angolini — Wed, 30 Oct 2013 14:41:39 GMT

Oh! So your hardware is OK.

Where are your Android linux source code?

Where are your pure linux source code?

Let´s compare

Re: Re: Touch problem with Linux

vishvapathi — Thu, 31 Oct 2013 07:19:34 GMT

Hi Daiane,

I have attached touchscreen source of both Android Linux and pure Linux.

While making uImage i am getting the below warnings.. Attached partial log for reference

drivers/input/touchscreen/generic_ts_rel/core_i2c.c:46: warning: 'bindata' defined but not used

drivers/input/touchscreen/generic_ts_rel/core_i2c.c: In function 'core_probe':

drivers/input/touchscreen/generic_ts_rel/core_i2c.c:393: warning: 'vendor' may be used uninitialized in this function

CC drivers/input/touchscreen/generic_ts_rel/plat_i2c.o

In file included from drivers/input/touchscreen/generic_ts_rel/platform.h:8,

from drivers/input/touchscreen/generic_ts_rel/core_i2c.h:11,

from drivers/input/touchscreen/generic_ts_rel/plat_i2c.c:26:

drivers/input/touchscreen/generic_ts_rel/plat_i2c.h:47:1: warning: "PLATFORM_AW_CTP_IRQ_NUM" redefined

drivers/input/touchscreen/generic_ts_rel/plat_i2c.h:45:1: warning: this is the location of the previous definition

CC drivers/input/touchscreen/generic_ts_rel/mmgr.o

Re: Touch problem with Linux

daiane_angolini — Thu, 31 Oct 2013 15:48:21 GMT

I would start with the board file first.

This file

http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/board-mx6q_sabresd.c?h=imx_3.0.35_4.1.0

And, you can use meld or diff to see the differences. Try to focus on keyworks like "spi" "i2c" "touch" "adv7846"

Oh, I´m sorry, but I don´t remember exactly what is the touch controller partnumber you´re using. Please use the right one as keyword

Re: Touch problem with Linux

vishvapathi — Tue, 05 Nov 2013 09:41:32 GMT

Hi Daiane,

I got help from Embest tech and now my Touch screen is working fine in Linux. :smileyhappy:

https://github.com/embest-tech/linux-imx/commit/4006c19c6beda96a0bd5855a1ab27a7b2e380cb5

Thanks to all

Re: Touch problem with Linux

daiane_angolini — Wed, 06 Nov 2013 18:28:27 GMT

Perfect!

I´m glad to hear that :smileywink: