[Gta04-owner] Kernel 3.7 extensions

Dr. H. Nikolaus Schaller hns at goldelico.com
Thu Jan 31 11:55:09 CET 2013


Am 31.01.2013 um 09:32 schrieb Dr. H. Nikolaus Schaller:

> 
> Am 31.01.2013 um 01:40 schrieb Benjamin Deering:
> 
>> On 01/28/2013 04:29 AM, Dr. H. Nikolaus Schaller wrote:
>>> Hi Neil,
>>> I am working to add many nice features the hw-validation kernel already
>>> has (like tv-out, missing sensors, camera, pvr, display panel support for 3704,
>>> 7004 device variants and some minor things required mostly for hardware
>>> tests) to the 3.7 kernel.
>>> 
>>> One piece of code isn't clear to me:
>>> 
>>> #ifdef CONFIG_TOUCHSCREEN_TSC2007
>>> 	tsc2007_boardinfo.irq = gpio_to_irq(TS_PENIRQ_GPIO);
>>> 	i2c_register_board_info(2,&tsc2007_boardinfo, 1);
>>> #endif
>>> #ifdef CONFIG_BMP085
>>> 	i2c_register_board_info(2,&bmp085_boardinfo, 1);
>>> #endif
>>> 	omap_register_i2c_bus(2, 400,  gta04_i2c2_boardinfo,
>>> 				ARRAY_SIZE(gta04_i2c2_boardinfo));
>>> 
>>> Was there a specific reason to register those two devices
>>> separately and not simply have them listed in gta04_i2c2_boardinfo[]?
>>> 
>>> Nikolaus
>>> 
>>> _______________________________________________
>>> Gta04-owner mailing list
>>> Gta04-owner at goldelico.com
>>> http://lists.goldelico.com/mailman/listinfo/gta04-owner
>>> 
>> Thanks for working on this!
>> 
>> I have it booting now on my SHR install.  This change was required to get audio (including HW audio routing for A4) working.  I will try to play with the camera if I get a chance.
>> 
>> Ben
>> <3.7-hwroute.patch>
> 
> Thanks! It compiles fine.

Well, that was too early. It compiles and boots. But as soon as the kernel initializes the TWL I get white noise mixed into the sound of the left handsfree speaker.
Playing a little with different ALSA settings didn't help.

> One thing for the records of future development: we should use snd_soc_dai_set_tristate() to tri-state the interface and not tamper with pinmux.

BR,
Nikolaus



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