Граф коммитов

171 Коммитов

Автор SHA1 Сообщение Дата
Mark Brown 22d91ed32b Linux 5.1-rc1
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Merge tag 'v5.1-rc1' into asoc-5.1

Linux 5.1-rc1
2019-03-18 11:14:51 +00:00
Olivier Moysan a39fe6e206
ASoC: stm32: i2s: fix registers declaration in regmap
- Declare SR as volatile, as it is changed by hardware.
- Remove TXDR from readable and volatile register list,
as it is intended for write accesses only.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11 16:58:51 +00:00
Olivier Moysan fef050c88c
ASoC: stm32: i2s: use default dai name
Use default DAI name based on dev_name function.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11 16:33:30 +00:00
Olivier Moysan c2dc8b2c11
ASoC: stm32: i2s: improve channel capabilities handling
Use alsa snd_pcm_hw_constraint_single service to manage
channels restriction. This provides better status on driver
limitations, to the application.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11 16:33:17 +00:00
Olivier Moysan 52e7306ca2
ASoC: stm32: i2s: change trigger traces
Update traces to log capture/playback stream start/stop.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11 16:33:03 +00:00
Olivier Moysan d4180b4c02
ASoC: stm32: sai: fix set_sync service
Add error check on set_sync function return.
Add of_node_put() as of_get_parent() takes a reference
which has to be released.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03 23:40:13 +00:00
Olivier Moysan 71d9537fad
ASoC: stm32: sai: fix oversampling mode
Set OSR bit if mclk/fs ratio is 512.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03 23:39:54 +00:00
Olivier Moysan 26f98e82dd
ASoC: stm32: sai: fix race condition in irq handler
When snd_pcm_stop_xrun() is called in interrupt routine,
substream context may have already been released.
Add protection on substream context.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03 23:39:35 +00:00
Olivier Moysan b846819297
ASoC: stm32: sai: fix exposed capabilities in spdif mode
Change capabilities exposed in SAI S/PDIF mode, to match
actually supported formats.
In S/PDIF mode only 32 bits stereo is supported.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03 23:39:16 +00:00
Olivier Moysan 5f8a1000c3
ASoC: stm32: sai: fix iec958 controls indexation
Allow indexation of sai iec958 controls according
to device id.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03 23:38:57 +00:00
Takashi Iwai 70395a96bd ASoC: More changes for v5.1
Another batch of changes for ASoC, no big core changes - it's mainly
 small fixes and improvements for individual drivers.
 
  - A big refresh and cleanup of the Samsung drivers, fixing a number of
    issues which allow the driver to be used with a wider range of
    userspaces.
  - Fixes for the Intel drivers to make them more standard so less likely
    to get bitten by core issues.
  - New driver for Cirrus Logic CS35L26.
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Merge tag 'asoc-v5.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: More changes for v5.1

Another batch of changes for ASoC, no big core changes - it's mainly
small fixes and improvements for individual drivers.

 - A big refresh and cleanup of the Samsung drivers, fixing a number of
   issues which allow the driver to be used with a wider range of
   userspaces.
 - Fixes for the Intel drivers to make them more standard so less likely
   to get bitten by core issues.
 - New driver for Cirrus Logic CS35L26.
2019-02-28 13:30:55 +01:00
Olivier Moysan 7b6b0049e2
ASoC: stm32: i2s: skip useless write in slave mode
Dummy write in capture master mode is used to gate
bus clocks. This write is useless in slave mode
as the clocks are not managed by slave.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:42:10 +00:00
Olivier Moysan 3005decf4f
ASoC: stm32: i2s: fix race condition in irq handler
When snd_pcm_stop_xrun() is called in interrupt routine,
substream context may have already been released.
Add protection on substream context.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:56 +00:00
Olivier Moysan 88dce52ee9
ASoC: stm32: i2s: remove useless callback
Clocks do not need to be released on driver removal,
as this is already managed before.
Remove useless remove callback.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:43 +00:00
Olivier Moysan 1ac2bd1644
ASoC: stm32: i2s: fix dma configuration
DMA configuration is not balanced on start/stop.
Move DMA configuration to trigger callback.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:30 +00:00
Olivier Moysan ebf629d502
ASoC: stm32: i2s: fix stream count management
Move counter handling to trigger start section
to manage multiple start/stop events.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:17 +00:00
Olivier Moysan 0c4c68d6fa
ASoC: stm32: i2s: fix 16 bit format support
I2S supports 16 bits data in 32 channel length.
However the expected driver behavior, is to
set channel length to 16 bits when data format is 16 bits.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:36:43 +00:00
Olivier Moysan 8ba3c5215d
ASoC: stm32: i2s: fix IRQ clearing
Because of regmap cache, interrupts may not be cleared
as expected.
Declare IFCR register as write only and make writings
to IFCR register unconditional.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:36:40 +00:00
YueHaibing 70605450fd
ASoC: stm32: sai: remove set but not used variables 'mask, cr1'
Fixes gcc '-Wunused-but-set-variable' warning:

sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_configure_clock':
sound/soc/stm/stm32_sai_sub.c:902:11: warning:
 variable 'mask' set but not used [-Wunused-but-set-variable]
sound/soc/stm/stm32_sai_sub.c:902:6: warning:
 variable 'cr1' set but not used [-Wunused-but-set-variable]

It's not used any more after 8307b2afd3 ("ASoC: stm32: sai: set sai as
mclk clock provider")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-18 18:23:59 +00:00
Wen Yang 1c3816a194
ASoC: stm32: sai: add missing put_device()
The of_find_device_by_node() takes a reference to the underlying device
structure, we should release that reference.

Fixes: 7dd0d83558 ("ASoC: stm32: sai: simplify sync modes management")
Signed-off-by: Wen Yang <yellowriver2010@hotmail.com>
Acked-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-14 13:12:07 +00:00
Olivier Moysan 6a68eeee0f
SoC: stm32: i2s: manage clock power
Kernel clock management:
Enable/disable I2S kernel clock on audio stream startup/shutdown.

Peripheral clock management:
Manage I2S peripheral clock power through regmap services.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08 13:01:22 +00:00
Olivier Moysan 307cce4a00
ASoC: stm32: i2s: add power management
Add suspend and resume sleep callbacks,
to support system low power modes.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08 13:01:07 +00:00
Takashi Iwai 18183edaad ASoC: stm: Drop superfluous PCM preallocation error checks
snd_pcm_lib_preallocate_pages() and co always succeed, so the error
check is simply redundant.  Drop it.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-06 18:29:28 +01:00
Rob Herring dc43d3aa04
ASoC: Convert a few more users to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:07:35 -08:00
Wei Yongjun 496fa3ba0a
ASoC: stm32: sai: fix invalid use of sizeof in stm32_sai_add_mclk_provider()
sizeof() when applied to a pointer typed expression gives the
size of the pointer, not that of the pointed data.

Fixes: 8307b2afd3 ("ASoC: stm32: sai: set sai as mclk clock provider")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-13 16:27:48 -08:00
Colin Ian King 6b27e27729
ASoC: stm32: sai: fix less than zero comparison on unsigned int
Currently, the comparison of div < 0 is always false because div is
an unsigned int. Fix this by making div an int.

Detected by CoverityScan, CID#1475309 ("Unsigned compared against 0")

Fixes: 8307b2afd3 "(ASoC: stm32: sai: set sai as mclk clock provider")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05 10:33:06 +00:00
Olivier Moysan 6be0f96d79
ASoC: stm32: sai: fix master clock naming
Fixes: 8307b2afd3 ("ASoC: stm32: sai: set sai as mclk clock provider")

Fix warning issued by strncat when bound equals to source length.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-23 10:51:45 +01:00
Olivier Moysan e6d7942ce6
ASoC: stm32: add clock dependency for sai
Fixes: 8307b2afd3 ("ASoC: stm32: sai: set sai as mclk clock provider")

Add COMMON_CLK dependency for STM32 SAI,
as it is required by clock provider.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-23 10:51:44 +01:00
Olivier Moysan 8307b2afd3
ASoC: stm32: sai: set sai as mclk clock provider
Add master clock generation support in STM32 SAI.
The master clock provided by SAI can be used to feed a codec.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-19 13:12:07 +01:00
Rob Herring 5d585e1e75
ASoC: Convert to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-28 19:07:00 +01:00
Colin Ian King 18127744cf
ASoC: stm32: remove redundant pointers 'priv' and 'rtd'
Pointer 'priv' is assigned and not used, removing this allows
the removal of pointer 'rtd'.

Cleans up clang warning:
warning: variable 'priv' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-01 12:16:26 +01:00
benjamin.gaignard@linaro.org 8db339d667
ASoC: stm32: replace "%p" with "%pK"
The format specifier "%p" can leak kernel addresses.
Use "%pK" instead.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-09 12:15:30 +01:00
Takashi Iwai b1625fbb3b
ASoC: stm32: Use snd_pcm_stop_xrun() helper
The XRUN trigger from the driver should be done via
snd_pcm_stop_xrun().  It simplifies the locking as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-04 15:41:36 +01:00
olivier moysan 187e01d0d5
ASoC: stm32: sai: add iec958 controls support
Add support of iec958 controls for STM32 SAI.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-06-18 12:54:38 +01:00
Olivier Moysan 6eb17d7093
ASoC: stm32: sai: Add support of S/PDIF playback
Add support of S/PDIF iec60958 playback on STM32 SAI.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-26 11:19:04 +00:00
Mark Brown 8596c5c36c
Merge branch 'topic/generic-dmaengine' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-stm32 2018-02-26 11:18:36 +00:00
olivier moysan 037002b14b
ASoC: stm32: spdifrx: Use default dai name
Use dai name provided by framework from dev_name() function.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12 12:04:33 +00:00
olivier moysan b9aa471628
ASoC: stm32: spdifrx: fix typo in function name.
Fix function name prefix for naming consistency.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12 12:04:29 +00:00
Kuninori Morimoto 66bf428e55
ASoC: stm: stm32_adfsdm: replace platform to component
Now platform can be replaced to component, let's do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12 11:45:39 +00:00
Olivier Moysan 276d70f758
ASoC: stm32: add of dependency for stm32 drivers
Add of dependency for STM32 ASoC drivers.
DFSDM of dependency is already inherited
from STM32_DFSDM_ADC dependency.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-07 11:19:53 +00:00
Mark Brown 76987bfb0d
Merge remote-tracking branches 'asoc/topic/simple', 'asoc/topic/spdif', 'asoc/topic/st-dfsdm', 'asoc/topic/stm32' and 'asoc/topic/sun4i-i2s' into asoc-next 2018-01-12 12:29:27 +00:00
Wei Yongjun 6dee6722c6
ASoC: stm32: fix a typo in stm32_adfsdm_probe()
Fix a typo, we should return PTR_ERR(priv->iio_cb) instead of
PTR_ERR(priv->iio_ch).

Fixes: 55da094824 ("ASoC: stm32: add DFSDM DAI support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-11 12:29:27 +00:00
Arnd Bergmann 9cee7972bd
ASoC: stm32: select IIO_BUFFER
The new stm32_adfsdm driver has incomplete dependencies as shown
by Kconfig:

warning: (SND_SOC_STM32_DFSDM && LMP91000) selects IIO_BUFFER_CB which has unmet direct dependencies (IIO && IIO_BUFFER)
sound/soc/stm/stm32_adfsdm.o: In function `stm32_adfsdm_trigger':
stm32_adfsdm.c:(.text+0x8c): undefined reference to `stm32_dfsdm_get_buff_cb'
stm32_adfsdm.c:(.text+0x9c): undefined reference to `stm32_dfsdm_release_buff_cb'

This makes the dependency on SND_SOC_STM32_DFSDM unconditional, so we can
always resolve the stm32_dfsdm_get_buff_cb/stm32_dfsdm_release_buff_cb
symbols and get the implied IIO_BUFFER dependency.

compile-testing on other platforms is still possible as long as that IIO
driver is there.

Fixes: 55da094824 ("ASoC: stm32: add DFSDM DAI support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-11 10:39:19 +00:00
Arnaud Pouliquen 55da094824
ASoC: stm32: add DFSDM DAI support
Add driver to handle DAI interface for PDM microphones connected
to Digital Filter for Sigma Delta Modulators IP.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-10 10:52:05 +00:00
olivier moysan 512d1bb4e8
ASoC: stm32: sai: use devm_of_platform_populate()
Use devm_of_platform_populate() instead of of_platform_depopulate()
to simplify driver code.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-27 13:09:53 +00:00
olivier moysan 7dd0d83558
ASoC: stm32: sai: simplify sync modes management
Use function of_find_device_by_node() to retrieve SAI
synchro provider device and private data.
This allows to remove registration of probed SAI
in a linked list.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-27 13:09:49 +00:00
Mark Brown 668f21b180
Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sgtl5000', 'asoc/topic/stm32', 'asoc/topic/sunxi' and 'asoc/topic/tas571x' into asoc-next 2017-11-10 21:31:29 +00:00
Mark Brown 16a077e17c ASoC: Fixes for v4.14
I've been quite lax in sending these due to conference season but here's
 a fairly large collection of ASoC updates.  The one thing that's not
 device specific is Takashi's fix for races between delayed work and PCM
 destruction, otherwise everything is specific to an individual device.
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Merge tag 'asoc-fix-v4.14-rc6' into asoc-linus

ASoC: Fixes for v4.14

I've been quite lax in sending these due to conference season but here's
a fairly large collection of ASoC updates.  The one thing that's not
device specific is Takashi's fix for races between delayed work and PCM
destruction, otherwise everything is specific to an individual device.

# gpg: Signature made Thu 26 Oct 2017 15:11:23 BST
# gpg:                using RSA key ADE668AA675718B59FE29FEA24D68B725D5487D0
# gpg:                issuer "broonie@kernel.org"
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" [unknown]
# gpg:                 aka "Mark Brown <broonie@debian.org>" [unknown]
# gpg:                 aka "Mark Brown <broonie@kernel.org>" [unknown]
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>" [unknown]
# gpg:                 aka "Mark Brown <broonie@linaro.org>" [unknown]
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0
2017-11-10 21:30:27 +00:00
olivier moysan 98c8dc2fd5
ASoC: stm32: spdifrx: fix control DMA error management
Fix DMA channel request error handling.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-06 15:45:45 +00:00
olivier moysan 9036e4acc8
ASoC: stm32: spdifrx: fix 16 bits capture
Change DMA bus width to manage properly 16 bits packed format.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-06 15:45:36 +00:00
olivier moysan 7e751e375a
ASoC: stm32: sai: fix warning in stm32_sai_set_config()
Fix uninitialized warning introduced by
"Move static settings to DAI init" commit
in stm32_sai_set_config() function.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-02 10:58:57 +00:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Olivier Moysan 5914d285f6 ASoC: stm32: sai: Add synchronization support
Add Synchronization support for STM32 SAI.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:17:49 +01:00
Olivier Moysan 47a8907d7c ASoC: stm32: sai: Remove spurious IRQs on stop
Clear IRQ mask on stream stop to avoid spurious IRQs.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:17:49 +01:00
Olivier Moysan 61fb4ff703 ASoC: stm32: sai: Move static settings to DAI init
Audio interface direction and protocol settings does not change
at runtime. So, these settings are moved from hw_params
function to dai_probe and set_fmt.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:17:49 +01:00
Olivier Moysan 3c6f6c53ab ASoC: stm32: sai: Fix get reset controller
Use devm version of reset_control_get function
to manage driver removing properly.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:16:59 +01:00
Olivier Moysan a4529d2b88 ASoC: stm32: sai: Fix DMA burst size
Set best burst size tradeoff for 8, 16, 32 bits transfers.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:16:32 +01:00
Olivier Moysan d807cdfb48 ASoC: stm32: sai: fix stop management in isr
Add check on substream validity.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-21 11:15:34 +01:00
Philipp Zabel 635eac1e54 ASoC: stm32: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-19 17:07:04 +01:00
Dan Carpenter 81321fe9fb ASoC: stm32: sai: remove some stray tabs
This line was accidentally indented too far.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-28 18:45:04 +01:00
olivier moysan 03e4d5d56f ASoC: stm32: Add SPDIFRX support
Add SPDIFRX support to STM32.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-21 12:09:52 +01:00
olivier moysan 5561b66bd0 ASoC: stm32: change configuration flag
Use a specific flag for SAI and I2S interfaces,
instead of common flag.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-19 16:32:06 +01:00
olivier moysan 03e78a242a ASoC: stm32: sai: add h7 support
Add support of SAI on STM32H7 family.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:59:03 +01:00
olivier moysan 701a6ec3a3 ASoC: stm32: sai: manage master clock
Disable master clock by default, and activate
it only when requested.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:58:58 +01:00
olivier moysan 1c77603136 ASoC: stm32: sai: fix clock management
Allow peripheral clock enable/disable on regmap accesses.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:58:57 +01:00
olivier moysan 4fa17938ea ASoC: stm32: sai: change stop sequence
Disable SAI before stopping DMA data transfers.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:58:57 +01:00
olivier moysan 607c61d40b ASoC: stm32: sai: remove spurious trace
Remove spurious trace in sai driver.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:58:56 +01:00
olivier moysan 602fdadc54 ASoC: stm32: sai: typo fixes
Fix typos in sai driver.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-16 18:58:56 +01:00
olivier moysan e7cc49b8ad ASoC: stm32: Add full duplex support to i2s
This patch allows to use i2s interface either as single
audio path (rx or tx), or bidirectional audio path.
This patch is added separately, as the driver does not
follow recommended use of the interface, to support this
configuration.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-05-19 18:34:43 +01:00
olivier moysan e4e6ec7b12 ASoC: stm32: Add I2S driver
Add I2S ASoC driver for STM32.
This version of the driver supports only
exclusive playback and capture interface.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-05-19 18:34:43 +01:00
olivier moysan 3e086edfe0 ASoC: stm32: add SAI driver
This patch implements SAI ASoC driver for STM32.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-26 16:45:54 +01:00