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Message-ID: <27493df8-e1c7-1a8b-e77e-dc3bd495567b@linux.intel.com>
Date:   Wed, 12 Apr 2023 09:11:09 -0500
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Subject: Re: [PATCH 00/20] ASoC/soundwire: add support for ACE2.x
Content-Language: en-US
To:     Vinod Koul <vkoul@kernel.org>,
        Bard Liao <yung-chuan.liao@linux.intel.com>
Cc:     alsa-devel@alsa-project.org, broonie@kernel.org,
        linux-kernel@vger.kernel.org, bard.liao@intel.com, tiwai@suse.de
References: <20230323054452.1543233-1-yung-chuan.liao@linux.intel.com>
 <ZDaC6D8yBiJ4GrXm@matsya>
From:   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
In-Reply-To: <ZDaC6D8yBiJ4GrXm@matsya>
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On 4/12/23 05:07, Vinod Koul wrote:
> On 23-03-23, 13:44, Bard Liao wrote:
>> This series uses the abstraction added in past kernel cycles to provide
>> support for the ACE2.x integration. The existing SHIM and Cadence
> 
> ACE2..?

Not sure I get the comment, this refers to the IP version.

ACE 2.0 IP used in LunarLake, x refers to future TDB versions.

BTW this depends on the series "[PATCH v2 00/18] ASoC: SOF: Intel:
hda-mlink: HDaudio multi-link extension update" applied yesterday by
Mark. It'd be really nice if we can have this in 6.4-rc1 to continue
adding the rest of the Lunar Lake patches.

We tried to limit the number of changes impacting both ASoC and
SoundWire subsystems but there's mechanically 2 merges needed (ASoC ->
SoundWire for the hda-mlink dependency and SoundWire->ASoC for the
interface changes below).

> 
>> registers are now split in 3 (SHIM, IP, SHIM vendor-specific), with some
>> parts also moved to the HDaudio Extended Multi link structures. Nothing
>> fundamentally different except for the register map.
>>
>> This series only provides the basic mechanisms to expose SoundWire-based
>> DAIs. The PCI parts and DSP management will be contributed later, and the
>> DAI ops are now empty as well.
>>
>> The change is mainly on SoundWire. It would be better to go through
>> SoundWire tree.
>>
>> Pierre-Louis Bossart (20):
>>   ASoC: SOF: Intel: shim: add enum for ACE 2.0 IP used in LunarLake
>>   soundwire: intel: add ACE2.x SHIM definitions
>>   soundwire: intel_ace2x: add empty new ops for LunarLake
>>   soundwire/ASOC: Intel: update offsets for LunarLake
>>   soundwire: intel/cadence: set ip_offset at run-time
>>   ASoC/soundwire: intel: pass hdac_bus pointer for link management
>>   soundwire: intel: add eml_lock in the interface for new platforms
>>   ASoC: SOF: Intel: hda: retrieve SoundWire eml_lock and pass pointer
>>   soundwire: intel_init: use eml_lock parameter
>>   soundwire: intel_ace2x: add debugfs support
>>   soundwire: intel_ace2x: add link power-up/down helpers
>>   soundwire: intel_ace2x: set SYNCPRD before powering-up
>>   soundwire: intel_ace2x: configure link PHY
>>   soundwire: intel_ace2x: add DAI registration
>>   soundwire: intel_ace2x: add sync_arm/sync_go helpers
>>   soundwire: intel_ace2x: use common helpers for bus start/stop
>>   soundwire: intel_ace2x: enable wake support
>>   soundwire: intel_ace2x: add check_cmdsync_unlocked helper
>>   soundwire: bus: add new manager callback to deal with peripheral
>>     enumeration
>>   soundwire: intel_ace2x: add new_peripheral_assigned callback
>>
>>  drivers/soundwire/Makefile              |   3 +-
>>  drivers/soundwire/bus.c                 |   3 +
>>  drivers/soundwire/cadence_master.h      |   2 +
>>  drivers/soundwire/intel.h               |  16 +
>>  drivers/soundwire/intel_ace2x.c         | 390 ++++++++++++++++++++++++
>>  drivers/soundwire/intel_ace2x_debugfs.c | 147 +++++++++
>>  drivers/soundwire/intel_auxdevice.c     |  17 ++
>>  drivers/soundwire/intel_init.c          |  21 +-
>>  include/linux/soundwire/sdw.h           |   3 +-
>>  include/linux/soundwire/sdw_intel.h     |  88 ++++++
>>  sound/soc/sof/intel/hda.c               |  31 +-
>>  sound/soc/sof/intel/shim.h              |   1 +
>>  12 files changed, 711 insertions(+), 11 deletions(-)
>>  create mode 100644 drivers/soundwire/intel_ace2x.c
>>  create mode 100644 drivers/soundwire/intel_ace2x_debugfs.c
>>
>> -- 
>> 2.25.1
>