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Mark Brown b4a5675334
Merge series "ASoC: stm32: manage rebind issue" from Olivier Moysan <olivier.moysan@st.com>: 
This patchset corrects a rebind issue on STM32 SPDIFRX and I2S drivers.

The same correction has already been applied for SAI driver:
0d6defc7e0 ("ASoC: stm32: sai: manage rebind issue")

The commit e894efef9a ("ASoC: core: add support to card rebind")
allows to rebind the sound card after a rebind of one of its component.
With this commit, the sound card is actually rebound,
but may be no more functional.

The following problems have been seen on STM32 drivers.

1) DMA channel is not requested:

With the sound card rebind the simplified call sequence is:
    probe
        snd_soc_register_component
                snd_soc_try_rebind_card
                        snd_soc_instantiate_card
        devm_snd_dmaengine_pcm_register

The problem occurs because the pcm must be registered,
before snd_soc_instantiate_card() is called.

Modify the driver, to change the call sequence as follows:
    probe
        devm_snd_dmaengine_pcm_register
        snd_soc_register_component
                snd_soc_try_rebind_card

2) DMA channel is not released:

dma_release_channel() is not called when
devm_dmaengine_pcm_release() is executed.
This occurs because SND_DMAENGINE_PCM_DRV_NAME component,
has already been released through devm_component_release().

devm_dmaengine_pcm_release() should be called before
devm_component_release() to avoid this problem.

Call snd_dmaengine_pcm_unregister() and snd_soc_unregister_component()
explicitly from the driver, to have the right sequence.

Olivier Moysan (3):
  ASoC: stm32: spdifrx: fix regmap status check
  ASoC: stm32: spdifrx: manage rebind issue
  ASoC: stm32: i2s: manage rebind issue

 sound/soc/stm/stm32_i2s.c     | 40 ++++++++++++++++------
 sound/soc/stm/stm32_spdifrx.c | 64 +++++++++++++++++++----------------
 2 files changed, 63 insertions(+), 41 deletions(-)

--
2.17.1
2020-03-18 21:41:27 +00:00
arch ARM: SoC fixes 2020-03-08 17:36:22 -07:00
block block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-06 07:00:58 -07:00
certs certs: Add wrapper function to check blacklisted binary hash 2019-11-12 12:25:50 +11:00
crypto Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-02-20 15:15:16 -08:00
Documentation ASoC: brcm: DSL/PON SoC device tree bindings of audio driver 2020-03-13 16:01:36 +00:00
drivers Linux 5.6-rc5 2020-03-11 18:45:26 +00:00
fs Driver core / debugfs fixes for 5.6-rc5 2020-03-08 10:39:40 -05:00
include Merge series "ALSA: compress: Add wma, alac and ape support" from Vinod Koul <vkoul@kernel.org>: 2020-03-16 18:07:42 +00:00
init Tracing updates: 2020-02-26 10:34:42 -08:00
ipc Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" 2020-02-21 11:22:15 -08:00
kernel block-5.6-2020-03-07 2020-03-07 14:14:38 -06:00
lib Tracing updates: 2020-02-26 10:34:42 -08:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled 2020-03-06 07:06:09 -06:00
net vsock: fix potential deadlock in transport->release() 2020-02-27 12:03:56 -08:00
samples Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
scripts parse-maintainers: Mark as executable 2020-03-06 16:29:21 -06:00
security Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-02-20 15:15:16 -08:00
sound Merge series "ASoC: stm32: manage rebind issue" from Olivier Moysan <olivier.moysan@st.com>: 2020-03-18 21:41:27 +00:00
tools for-linus-2020-03-07 2020-03-07 08:01:43 -06:00
usr Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
virt KVM/arm fixes for 5.6, take #1 2020-02-28 11:50:06 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore selftest/lkdtm: Use local .gitignore 2020-03-02 08:39:39 -07:00
.mailmap A handful of small documentation fixes that wandered in. 2020-02-07 13:03:10 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Hand MIPS over to Thomas 2020-02-24 22:43:18 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS Merge branch 'for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.7 2020-03-13 18:52:23 +00:00
Makefile Linux 5.6-rc5 2020-03-08 17:44:44 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.