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Date:   Wed, 12 Apr 2023 20:52:31 +0530
From:   Vinod Koul <vkoul@kernel.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc:     Bard Liao <yung-chuan.liao@linux.intel.com>,
        alsa-devel@alsa-project.org, broonie@kernel.org,
        linux-kernel@vger.kernel.org, bard.liao@intel.com, tiwai@suse.de
Subject: Re: [PATCH 00/20] ASoC/soundwire: add support for ACE2.x
Message-ID: <ZDbMt5BRrAV5UUEw@matsya>
References: <20230323054452.1543233-1-yung-chuan.liao@linux.intel.com>
 <ZDaC6D8yBiJ4GrXm@matsya>
 <27493df8-e1c7-1a8b-e77e-dc3bd495567b@linux.intel.com>
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On 12-04-23, 09:11, Pierre-Louis Bossart wrote:
> 
> 
> 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.

What does ACE mean, it should be expanded so that people know what it
might refer to..?

> 
> 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.

That should be mentioned in cover, I can ack this if okay and Mark might
apply..? or u folks have something else in mind?

> 
> 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
> > 

-- 
~Vinod