linux-kernel - [PATCH v3 0/6] Enable Greybus Audio codec driver

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Message-Id: <cover.1592537217.git.vaibhav.sr@gmail.com>
Date:   Fri, 19 Jun 2020 16:50:20 +0530
From:   Vaibhav Agarwal <vaibhav.sr@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alex Elder <elder@...nel.org>, Johan Hovold <johan@...nel.org>,
        Mark Greer <mgreer@...malcreek.com>
Cc:     greybus-dev@...ts.linaro.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Vaibhav Agarwal <vaibhav.sr@...il.com>
Subject: [PATCH v3 0/6] Enable Greybus Audio codec driver

The existing GB Audio codec driver is dependent on MSM8994 Audio driver.
During the development stage, this dependency was configured due to
various changes involved in MSM Audio driver to enable addtional codec
card and some of the changes proposed in mainline ASoC framework.
However, these are not the real dependencies and some of them can be
easily removed.

The folowing patch series includes the changes to resolve unnecessary
depedencies and make the codec driver functional with the latest kernel.

Patch 1,2: Incudes jack framework related changes.
Patch 3,4,5: Resolves compilation error observed with the latest kernel and
also provides helper APIs required to allow dynamic addition/removal of
modules.
Patch 6: Finally provides config options and related Makefile changes to
enable GB Codec driver.

Thanks to Alexandre for raising the headsup [1] and motivating me to provide
the necessary changes.

This patchset is intended to resolve the componentization issue only.
And as per the suggestion [2] from Mark, I'll share a separate patch series
aligned to ASoC tree. Once the relevant changes are accepted in snd-soc
framework, I'll share relevant patches to pull GB Audio out of the
staging tree.

[1] https://lore.kernel.org/lkml/20200507212912.599433-1-alexandre.belloni@bootlin.com/
[2] https://lore.kernel.org/alsa-devel/20200612160620.GK5396@sirena.org.uk/

v1:
- Include the changes for the review comments suggested by Dan
- Rebase to latest staging-next

v2:
- Avoid defining unused 'update' pointer
- Fix the missing connect bool value required during mixer_update_power
- Added Reviewed-by tag from Dan
- Rebase to latest staging-next

Vaibhav Agarwal (6):
  staging: greybus: audio: Update snd_jack FW usage as per new APIs
  staging: greybus: audio: Maintain jack list within GB Audio module
  staging: greybus: audio: Resolve compilation errors for GB codec
    module
  staging: greybus: audio: Resolve compilation error in topology parser
  staging: greybus: audio: Add helper APIs for dynamic audio modules
  staging: greybus: audio: Enable GB codec, audio module compilation.

 drivers/staging/greybus/Kconfig          |  14 +-
 drivers/staging/greybus/Makefile         |   6 +-
 drivers/staging/greybus/audio_codec.c    | 178 +++++++++++---------
 drivers/staging/greybus/audio_codec.h    |  12 +-
 drivers/staging/greybus/audio_helper.c   | 197 +++++++++++++++++++++++
 drivers/staging/greybus/audio_helper.h   |  17 ++
 drivers/staging/greybus/audio_module.c   |  15 +-
 drivers/staging/greybus/audio_topology.c | 123 +++++++-------
 8 files changed, 409 insertions(+), 153 deletions(-)
 create mode 100644 drivers/staging/greybus/audio_helper.c
 create mode 100644 drivers/staging/greybus/audio_helper.h

base-commit: 98fe05e21a6e0ca242e974650ed58b64813cb2dc
-- 
2.26.2