[alsa-devel] [PATCH 2/2] ASoC: Intel - use control components to describe card config

[Jaroslav Kysela]

Dne 19. 11. 19 v 20:12 Pierre-Louis Bossart napsal(a):
> 
> 
> On 11/19/19 11:49 AM, Jaroslav Kysela wrote:
>> Use the control interface (field 'components' in the info structure)
>> to pass the I/O configuration details. The long card name might
>> be used in GUI. This information should be hidden.
>>
>> Signed-off-by: Jaroslav Kysela <perex at perex.cz>
>> Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
>> Cc: Mark Brown <broonie at kernel.org>
>> ---
>>    sound/soc/intel/Kconfig                |  9 +++++++++
>>    sound/soc/intel/boards/bytcht_es8316.c | 16 ++++++++++++----
>>    sound/soc/intel/boards/bytcr_rt5640.c  | 14 +++++++++++---
>>    sound/soc/intel/boards/bytcr_rt5651.c  | 26 ++++++++++++++++----------
>>    4 files changed, 48 insertions(+), 17 deletions(-)
>>
>> diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
>> index c8de0bb5bed9..3421957adedb 100644
>> --- a/sound/soc/intel/Kconfig
>> +++ b/sound/soc/intel/Kconfig
>> @@ -47,6 +47,15 @@ config SND_SOC_INTEL_SST_FIRMWARE
>>    	# Haswell/Broadwell/Baytrail legacy and will be set
>>    	# when these platforms are enabled
>>    
>> +config SND_SOC_INTEL_USE_CTL_COMPONENTS
>> +	bool "Use CTL components for I/O configuration"
>> +	help
>> +	  Some drivers might pass the I/O configuration through the
>> +	  soundcard's driver name in the control user space API.
>> +	  The new scheme is to put this information to the components
>> +	  field in the ALSA's card info structure. Say Y, if you
>> +	  have ALSA user space version 1.2.2+.
>> +
> 
> If this is at the board level, then maybe move this to
> sound/soc/intel/boards/Kconfig
> 
> I am not sure about the alsa-lib dependency, it's a bit odd, isn't it?
> shouldn't this be handled via protocol versions? or a configuration
> provided by alsa-lib somehow?

It's not about the protocol. It's about to move this type of information to 
another place. I can remove the ALSA version sentence from the help, because 
it's just a hint. I would like to create ucm2 configurations based on this 
rather than the misused long card names.

					Jaroslav

-- 
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.