alsa-devel.alsa-project.org archive mirror
 help / color / mirror / Atom feed
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Mark Brown <broonie@kernel.org>, Dave Ertman <david.m.ertman@intel.com>
Cc: alsa-devel@alsa-project.org, tiwai@suse.de,
	gregkh@linuxfoundation.org, ranjani.sridharan@intel.com,
	parav@nvidia.com, jgg@nvidia.com
Subject: Re: [PATCH 0/6] Ancillary bus implementation and SOF multi-client support
Date: Thu, 1 Oct 2020 09:07:19 -0500	[thread overview]
Message-ID: <ddb019b8-4370-eca8-911f-38adf0531076@linux.intel.com> (raw)
In-Reply-To: <20201001125038.GC6715@sirena.org.uk>



>> are controlled by DT/ACPI. The same argument applies for not using MFD
>> in this scenario as it relies on individual function devices being
>> physical devices that are DT enumerated.
> 
> MFD has no reliance on devices being DT enumerated, it works on systems
> that don't have DT and in many cases it's not clear that the split you'd
> want for the way Linux describes devices is a sensible one for other
> operating systems so we don't want to put it into DT.  Forcing things to
> be DT enumerated would just create needless ABIs.

I agree the "DT enumerated" part should be removed.

To the best of my knowledge, the part of 'individual function devices 
being physical devices' is correct though. MFDs typically expose 
different functions on a single physical bus, and the functions are 
separated out by register maps. In the case where there's no physical 
bus/device and no register map it's unclear how MFDs would help?

  parent reply	other threads:[~2020-10-01 14:08 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-30 22:50 [PATCH 0/6] Ancillary bus implementation and SOF multi-client support Dave Ertman
2020-09-30 22:50 ` [PATCH 1/6] Add ancillary bus support Dave Ertman
2020-09-30 23:05   ` Jason Gunthorpe
2020-10-01 11:01   ` Greg KH
2020-10-01 11:46     ` Jason Gunthorpe
2020-10-01 11:54       ` Greg KH
2020-10-01 12:02         ` Jason Gunthorpe
2020-10-01 12:15           ` Greg KH
2020-10-01 18:26             ` Ertman, David M
2020-10-01 11:02   ` Greg KH
2020-10-01 16:30     ` Ertman, David M
2020-10-01 11:05   ` Greg KH
2020-10-01 11:58     ` Jason Gunthorpe
2020-10-01 12:14       ` Greg KH
2020-10-01 14:33         ` Jason Gunthorpe
2020-10-01 14:38           ` Greg KH
2020-10-01 16:06             ` Pierre-Louis Bossart
2020-10-01 17:42             ` Jason Gunthorpe
2020-10-01 14:39           ` Parav Pandit
2020-10-01 14:43             ` Greg KH
2020-10-01 13:27   ` Mark Brown
2020-09-30 22:50 ` [PATCH 2/6] ASoC: SOF: Introduce descriptors for SOF client Dave Ertman
2020-10-01 13:02   ` Greg KH
2020-10-01 15:59     ` Sridharan, Ranjani
2020-10-01 22:16     ` Sridharan, Ranjani
2020-10-02  4:53       ` gregkh
2020-10-02 17:07         ` Sridharan, Ranjani
2020-10-03  9:02           ` gregkh
2020-10-05  2:35             ` Sridharan, Ranjani
2020-10-05 11:27               ` gregkh
2020-10-05 15:18                 ` Pierre-Louis Bossart
2020-10-05 15:32                   ` gregkh
2020-10-01 13:38   ` Mark Brown
2020-10-01 16:48     ` Sridharan, Ranjani
2020-09-30 22:50 ` [PATCH 3/6] ASoC: SOF: Create client driver for IPC test Dave Ertman
2020-10-01 13:04   ` Greg KH
2020-10-01 16:46     ` Sridharan, Ranjani
2020-10-01 13:09   ` Greg KH
2020-10-01 13:55     ` Pierre-Louis Bossart
2020-10-01 16:48       ` Ertman, David M
2020-10-01 13:59   ` Mark Brown
2020-09-30 22:50 ` [PATCH 4/6] ASoC: SOF: ops: Add ops for client registration Dave Ertman
2020-09-30 22:50 ` [PATCH 5/6] ASoC: SOF: Intel: Define " Dave Ertman
2020-09-30 22:50 ` [PATCH 6/6] ASoC: SOF: debug: Remove IPC flood test support in SOF core Dave Ertman
2020-10-01  5:58 ` [PATCH 0/6] Ancillary bus implementation and SOF multi-client support Greg KH
2020-10-01 15:54   ` Ertman, David M
2020-10-01  7:14 ` Greg KH
2020-10-01 15:55   ` Ertman, David M
2020-10-01 16:10     ` Greg KH
2020-10-01 17:13       ` Ertman, David M
2020-10-02 20:23   ` Ertman, David M
2020-10-03  9:08     ` Greg KH
2020-10-03  9:09       ` Greg KH
2020-10-04  2:26       ` Parav Pandit
2020-10-04 23:45       ` Williams, Dan J
2020-10-05  1:18         ` Ertman, David M
2020-10-05  2:39           ` Parav Pandit
2020-10-05 11:25         ` gregkh
2020-10-06 22:40           ` Dan Williams
2020-10-07  9:14             ` gregkh
2020-10-07 16:19               ` Dan Williams
2020-10-07 16:22                 ` Mark Brown
2020-10-07 16:41                   ` Dan Williams
2020-10-07 16:42                   ` Pierre-Louis Bossart
2020-10-07 16:56                     ` Parav Pandit
2020-10-01 10:05 ` Rojewski, Cezary
2020-10-01 10:59   ` gregkh
2020-10-01 12:49     ` Jason Gunthorpe
2020-10-01 12:55       ` gregkh
2020-10-01 13:26         ` Jason Gunthorpe
2020-10-01 14:17           ` gregkh
2020-10-01 15:08         ` Parav Pandit
2020-10-01 12:50 ` Mark Brown
2020-10-01 13:12   ` Greg KH
2020-10-01 13:42     ` Jason Gunthorpe
2020-10-01 14:40     ` Mark Brown
2020-10-01 15:32       ` Greg KH
2020-10-01 16:03         ` Mark Brown
2020-10-01 18:16           ` Greg KH
2020-10-01 18:29             ` Ertman, David M
2020-10-01 19:38               ` Mark Brown
2020-10-01 19:54                 ` Ertman, David M
2020-10-01 20:17                   ` Mark Brown
2020-10-02  0:47                     ` Jason Gunthorpe
2020-10-02 11:19                       ` Mark Brown
2020-10-02 17:23                         ` Ertman, David M
2020-10-02 17:25                           ` Jason Gunthorpe
2020-10-02 17:44                             ` Mark Brown
2020-10-01 14:07   ` Pierre-Louis Bossart [this message]
2020-10-01 15:24     ` Mark Brown
2020-10-01 16:20       ` Pierre-Louis Bossart
2020-10-01 16:51         ` Mark Brown
2020-10-01 18:04           ` Jason Gunthorpe
2020-10-01 18:13             ` Greg KH
2020-10-01 19:23             ` Mark Brown
2020-10-01 16:50     ` Ertman, David M
2020-10-01 17:10       ` Mark Brown
2020-10-01 17:16         ` Ertman, David M
2020-10-01 17:52 ` Ertman, David M
     [not found] <20201001050534.890666-1-david.m.ertman@intel.com>
2020-10-03  9:04 ` Leon Romanovsky
2020-10-03  9:10   ` Greg KH
2020-10-03  9:24     ` Leon Romanovsky
2020-10-03  9:32       ` Greg KH
2020-10-05  1:20     ` Ertman, David M

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ddb019b8-4370-eca8-911f-38adf0531076@linux.intel.com \
    --to=pierre-louis.bossart@linux.intel.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=david.m.ertman@intel.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=jgg@nvidia.com \
    --cc=parav@nvidia.com \
    --cc=ranjani.sridharan@intel.com \
    --cc=tiwai@suse.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).