Commit graph

508 commits

Author SHA1 Message Date
Mark Brown f617134f75 Merge remote-tracking branches 'asoc/topic/rt5665', 'asoc/topic/rt5670', 'asoc/topic/rt5677', 'asoc/topic/samsung' and 'asoc/topic/simple' into asoc-next 2016-12-12 15:53:18 +00:00
Mark Brown 14eec47753 Merge remote-tracking branch 'asoc/topic/dmaengine' into asoc-next 2016-12-12 15:52:46 +00:00
Sylwester Nawrocki 1bfbc260a5 ASoC: samsung: Add machine driver for Exynos5433 based TM2 board
This patch adds the sound machine driver for the TM2 and TM2E boards.
Speaker and headphone playback, Main Mic capture, Bluetooth, Voice
call and external accessory are supported.

Signed-off-by: Inha Song <ideal.song@samsung.com>
[k.kozlowski: rebased on 4.1]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
[s.nawrocki: rebased to 4.7, adjustment to the ASoC core changes,
 removed unused ops and direct calls to the max98504 function,
 added parsing of "audio-amplifier" and "audio-codec"
 properties, added TDM API calls, switched to gpiod API]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-01 21:54:27 +00:00
Krzysztof Kozlowski 95f5609d22 ASoC: samsung: Enable COMPILE_TEST for SmartQ and WM8580
The I2S sound drivers for SmartQ board and WM8580 codec can be compile
tested to increase build coverage.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-22 16:49:01 +00:00
Krzysztof Kozlowski a41dcdeee5 ASoC: samsung: Enable COMPILE_TEST for entire Samsung ASoc
Instead of build time, Samsung ASoC drivers have rather runtime
dependency on Exynos or other Samsung platforms.  For building they
require Common Clock Framework.  If it is provided they could be compile
tested to increase build coverage.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-22 16:48:46 +00:00
Krzysztof Kozlowski cd9e2b6276 ASoC: samsung: smdk_wm8580: Remove old platforms and drop mach-types usage
MACH_SMDKC100, MACH_SMDKV210 and MACH_SMDKC110 are no longer supported
so we can drop the dead code.  After this the driver no longer
differentiates between machines (S3C24xx machines are not supported by
it) so there is no need to override I2S device id in cpu_dai_name and
SEC_PLAYBACK dai_link can be removed as well.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-22 16:48:46 +00:00
Krzysztof Kozlowski f8cbab42d9 ASoC: samsung: Remove non-existing MACH dependencies
MACH_SMDKC100 was removed in commit b8529ec1c1 ("ARM: S5PC100: no more
support S5PC100 SoC"). MACH_SMDKV210 and MACH_SMDKC110 in commit
28c8331d38 ("ARM: S5PV210: Remove support for board files").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-22 16:48:46 +00:00
Lars-Peter Clausen f174c1db90 ASoC: samsung: Remove unselectable smdk_wm8580pcm
The SND_SOC_SMDK_WM8580_PCM Kconfig entry depends on either MACH_SMDKV210
or MACH_SMDKC110. Both of which were removed in commit 28c8331d38 ("ARM:
S5PV210: Remove support for board files") over two years ago. The driver
has been unselectable ever since.

Considering the lack of complaints about this it can be concluded that the
driver is unused and can be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-11 15:38:58 +00:00
Valentin Rothberg 5acbd34398 ASoC: samsung: Makefile cleanup
Commit a076d41823 ("ASoC: samsung: Drop AC97 drivers") removed some
unused code and the associated Kconfig options, but left those options
referenced in the Makefile.  Remove the leftover references in the
Makefile.

Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-11 15:37:15 +00:00
Sylwester Nawrocki 6c9473c55e ASoC: samsung: s3c24xx-i2s.c merge fixup
This fixes a build error as below which appeared after merging
branch fix/samsung and also proper error messages are restored.

sound/soc/samsung/s3c24xx-i2s.c: In function ‘s3c24xx_iis_dev_probe’:
sound/soc/samsung/s3c24xx-i2s.c:444:8: error: ‘pdata’ undeclared (first use in this function)
sound/soc/samsung/s3c24xx-i2s.c:444:8: note: each undeclared identifier is reported only once for each function it appears in

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 09:15:37 -06:00
Sylwester Nawrocki a451332042 ASoC: samsung: spdif: Fix DMA filter initialization
This patch fixes issues introduced in commit 73f5dfc683
"ASoC: samsung: get access to DMA engine early to defer probe properly"
and indicated by a following compilation warning:

  CC [M]  sound/soc/samsung/spdif.o
sound/soc/samsung/spdif.c: In function ‘spdif_probe’:
sound/soc/samsung/spdif.c:419:6: warning: ‘filter’ may be used uninitialized
in this function [-Wuninitialized]

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 09:15:27 -06:00
Sylwester Nawrocki a076d41823 ASoC: samsung: Drop AC97 drivers
The AC97 drivers are broken and it seems these have not been used
for a long time.  This patch removes the unused code, i.e. Samsung
SoC AC97 controller driver and related machine drivers:
ln2440sbc_alc650, smdk2443_wm9710, smdk_wm9713.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 09:15:01 -06:00
Sylwester Nawrocki 5d3c1f633e ASoC: samsung: s2c24xx-i2s: remove redundant error message
There is no need to report the resource request error in
the driver as it is already handled within devm_ioremap_resource().
While at it also drop a redundant variable initialization.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 09:15:01 -06:00
Sylwester Nawrocki d8dbb4b327 ASoC: samsung: pcm: Conversion to use devm_ioremap_resource()
This simplifies the code a bit and removes a hard coded IO memory
region size.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 09:15:01 -06:00
Mark Brown 990fcfefc9 Merge branch 'fix/samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-samsung 2016-10-28 18:33:24 +01:00
Marek Szyprowski 73f5dfc683 ASoC: samsung: get access to DMA engine early to defer probe properly
ASoC Samsung sub-drivers tried to get access to their DMA engine
controllers as a last step in driver probe. If a DMA engine was not
available yet, samsung_asoc_dma_platform_register() function ended in
-EPROBE_DEFER, but the driver already registered its component to ASoC
core. This patch moves samsung_asoc_dma_platform_register() call before
registering any components, to the common place, where driver was gathering
all needed resources.

In case of Samsung Exynos i2s driver the issue was even worse. The driver
managed already to register its secondary DAI platform device before
even getting the DMA engine access. That together with -EPROBE_DEFER error
code from samsung_i2s_probe() immediately triggered another round of
deferred probe retry and in turn endless loop of driver probing.

This patch fixes broken boot on Odroid XU3 and other Exynos5422-based
boards.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-28 18:21:13 +01:00
Sylwester Nawrocki 2ef9555bd1 ASoC: samsung: s3c24xx-i2s: Debug/error trace cleanup
pr_err() are replaced with dev_err() so information about
device the error logs refer to is also included.

pr_debug() at beginning of each function are removed
as they are likely very rarely used and can always be
added again when doing any serious debugging.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-25 20:26:10 +01:00
Sylwester Nawrocki b57a089bd4 ASoC: samsung: s3c24xx-i2s: Don't use platform_data for DMA parameters
Since the s3c24xx-dma is converted to use DMA map we can rely on the
DMA subsystem to match DMA channels and slave devices, rather than
passing DMA details from platform_data.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-25 20:26:06 +01:00
Mark Brown a0a594369c Merge branch 'topic/dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-samsung 2016-10-25 20:25:42 +01:00
Sylwester Nawrocki cdaf9af1ea ASoC: samsung: Remove unneeded initialization of chan_name
This patch updates the I2S drivers to always use chan_names[] field
of struct snd_dmaengine_pcm_config for specifying DMA channel names,
rather than using struct snd_dmaengine_dai_dma_data.

This allows us to subsequently drop the
SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag, now when the last
use of that flag is removed.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-25 20:22:48 +01:00
Sylwester Nawrocki 892ccf0f21 ASoC: s3c24xx_uda134x: Move global variables to driver's data structure
Gather all driver's private variables in common data structure
and allocate the data structure dynamically.

Also unused ENFORCE_RATES symbol and local variable (leftovers
from an erroneous rebase) are removed.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-25 14:06:19 +01:00
Charles Keepax 5faf071d08 ASoC: samsung: i2s: Fixup last IRQ unsafe spin lock call
Unfortunately, I seem to have missed a case where an IRQ safe spinlock was
required, in samsung_i2s_dai_remove, when I fixed up the other calls in
this patch:

316fa9e09a ("ASoC: samsung: Use IRQ safe spin lock calls")

This causes a lockdep warning when unbinding and rebinding the audio card:

[  104.357664]        CPU0                    CPU1
[  104.362174]        ----                    ----
[  104.366692]   lock(&(&pri_dai->spinlock)->rlock);
[  104.371372]                                local_irq_disable();
[  104.377283]                                lock(&(&substream->self_group.lock)->rlock);
[  104.385259]                                lock(&(&pri_dai->spinlock)->rlock);
[  104.392469]   <Interrupt>
[  104.395072]     lock(&(&substream->self_group.lock)->rlock);
[  104.400710]
[  104.400710]  *** DEADLOCK ***

Fixes: ce8bcdbb61 ("ASoC: samsung: i2s: Protect more registers with a spinlock")
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-24 19:00:01 +01:00
Mark Brown 096388b76a Merge remote-tracking branches 'asoc/topic/rt5659', 'asoc/topic/rt5660', 'asoc/topic/rt5677' and 'asoc/topic/samsung' into asoc-next 2016-09-29 12:44:37 -07:00
Colin Ian King 5f6af6a75e ASoC: samsung: add missing \n to end of pr_err messages
Trival fix, some pr_err messages are missing a \n, so add it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-24 19:43:20 +01:00
Randy Li 090d934881 ASoC: exynos: organize the asoc audio into a menu
It is simple sound card time, we could assign different codec
to a interface without making a specific driver for it. The SPDIF
and I2S interface for Samsung would be possible used by
simple-sound-card, but not sure about the PCM.

Those S3C time entries are left alone as I don't think any new board
would need them.

Signed-off-by: Randy Li <ayaka@soulik.info>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-24 19:35:01 +01:00
Wei Yongjun fd61576fdd ASoC: samsung: i2s: Add missing clk_disable_unprepare() on error in samsung_i2s_probe()
Add the missing clk_disable_unprepare() before return
from samsung_i2s_probe() in the error handling case.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-24 12:38:02 +01:00
Sylwester Nawrocki 45ef4969d6 ASoC: samsung: s3c24xx_uda134x: debug/error trace cleanup
Switch from pr_* to dev_* macros and drop some debug traces.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 28405212b5 ASoC: samsung: Convert s3c24xx_uda134x to use devm_snd_soc_register_card()
Suppreses a following kernel warning: "soc-audio soc-audio:
ASoC: machine S3C24XX_UDA134X should use snd_soc_register_card()".

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 2da1e487ca ASoC: s3c24xx_uda134x: Drop initialization of codec's platform data
It's already taken care by the codec and its platform_data defined
in the arch/arm/mach-s3c24xx/mach-mini2440.c board file.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 84c5c20395 ASoC: s3c24xx_uda134x: Remove unused power() callback
The power() callback has always been empty so just remove it.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 9b08f30c4f ASoC: samsung: Remove unused now unused struct s3c_dma_params
There is no user of this data structure now, all users have been converted
to use struct snd_dmaengine_dai_dma_data instead.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 2feb616539 ASoC: samsung: Drop usage of of struct s3c_dma_params from pcm.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 2b6583457d ASoC: samsung: Drop usage of struct s3c_dma_params from spdif.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 996d81e167 ASoC: samsung: Drop usage of struct s3c_dma_params from ac97.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki ea37bd4df5 ASoC: samsung: Drop usage of struct s3c_dma_params from s3c2412-i2s.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 8999390e40 ASoC: samsung: Drop usage of struct s3c_dma_params from s3c24xx-i2s.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 69e7a69a22 ASoC: samsung: Drop usage of struct s3c_dma_params from i2s.c
struct s3c_dma_params already includes struct snd_dmaengine_dai_dma_data,
there is no need for such an indirection so switch to using struct
snd_dmaengine_dai_dma_data instead of struct s3c_dma_params.  This also
allows us to use snd_soc_dai_init_dma_data() function instead of the
platform specific samsung_asoc_init_dma_data helper.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:55:20 +01:00
Sylwester Nawrocki 1bc610e7a1 ASoC: samsung: Fix clock handling in S3C24XX_UDA134X card
There is no "pclk" alias in the s3c2440 clk driver for "soc-audio"
device so related clk_get() fails, which prevents any operation
of the S3C24XX_UDA134X sound card.
Instead we get the clock on behalf of the I2S device, i.e. we use
the I2S block gate clock which has PCLK is its parent clock.

Without this patch there is an error like:

s3c24xx_uda134x_startup cannot get pclk
ASoC: UDA134X startup failed: -2

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-04 11:21:14 +01:00
Sylwester Nawrocki 42a74e7747 ASoC: samsung: Specify DMA channels through struct snd_dmaengine_pcm_config
The DMA channel names are specified through struct snd_dmaengine_pcm_config
rather than using SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag when
booting with devicetree in order to properly support deferred probing.
Without this change the sound machine driver initialization can complete
successfully with unavailable DMA resources.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-21 19:18:17 +01:00
Sylwester Nawrocki 2b960386cb ASoC: samsung: Fix error paths in the I2S driver's probe()
Ensure they secondary DAI device is freed properly when asoc_dma_platform
registration fails.  This change is needed for proper deferred probe support
and will help preventing situations when the CPU DAI's initialization
completes without required DMA resources.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-21 19:18:17 +01:00
Colin Ian King 48b418d7fd ASoC: samsung: fix spelling mistake: "unknwon" -> "unknown"
trivial fix to spelling mistake in pr_err message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-26 12:29:26 +01:00
Sylwester Nawrocki ee12a817bb ASoC: samsung: Remove unused Odroid x2/u3 machine driver
We have been using "simple-audio-card" for Odroid X2/U3 boards,
as can be seen from sound node in arch/arm/boot/dts/
exynos4412-odroid-common.dtsi. A dedicated machine driver is not
needed and it is removed in this patch.
There is no dts files using "samsung,odroidx2-audio" or
"samsung,odroidu3-audio" compatible strings.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30 16:20:03 +01:00
Sylwester Nawrocki 2f7b5d1420 ASoC: samsung: Use of_device_get_match_data() helper
Simplify the code a little by using a standard function for
getting the match data.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30 16:20:03 +01:00
Sylwester Nawrocki 42b926b8d0 ASoC: samsung: Remove definition of an unused data structure
samsung_dai_type_pri is not referenced anywhere so remove it.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30 16:20:03 +01:00
Sylwester Nawrocki b084c052c7 ASoC: samsung: Remove unused "samsung-i2sv4" platform_device_id entry
"samsung-i2sv4" identifier was previously used for the I2S device
of the S5PV210 SoCs, it can be removed now when s5pv210 is a dt-only
platform.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30 16:20:03 +01:00
Mark Brown b25d2803e9 Merge remote-tracking branches 'asoc/topic/rt5640', 'asoc/topic/rt5659', 'asoc/topic/samsung' and 'asoc/topic/ssm4567' into asoc-next 2016-03-13 15:17:47 +07:00
Charles Keepax 316fa9e09a ASoC: samsung: Use IRQ safe spin lock calls
Lockdep warns of a potential lock inversion, i2s->lock is held numerous
times whilst we are under the substream lock (snd_pcm_stream_lock). If
we use the IRQ unsafe spin lock calls, you can also end up locking
snd_pcm_stream_lock whilst under i2s->lock (if an IRQ happens whilst we
are holding i2s->lock). This could result in deadlock.

[   18.147001]        CPU0                    CPU1
[   18.151509]        ----                    ----
[   18.156022]   lock(&(&pri_dai->spinlock)->rlock);
[   18.160701]                                local_irq_disable();
[   18.166622]                                lock(&(&substream->self_group.lock)->rlock);
[   18.174595]                                lock(&(&pri_dai->spinlock)->rlock);
[   18.181806]   <Interrupt>
[   18.184408]     lock(&(&substream->self_group.lock)->rlock);
[   18.190045]
[   18.190045]  *** DEADLOCK ***

This patch changes to using the irq safe spinlock calls, to avoid this
issue.

Fixes: ce8bcdbb61 ("ASoC: samsung: i2s: Protect more registers with a spinlock")
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2016-02-20 00:29:19 +09:00
Arnd Bergmann ba4bc32eaa ASoC: s3c24xx: use const snd_soc_component_driver pointer
An older patch to convert the API in the s3c i2s driver
ended up passing a const pointer into a function that takes
a non-const pointer, so we now get a warning:

sound/soc/samsung/s3c2412-i2s.c: In function 's3c2412_iis_dev_probe':
sound/soc/samsung/s3c2412-i2s.c:172:9: error: passing argument 3 of 's3c_i2sv2_register_component' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]

However, the s3c_i2sv2_register_component() function again
passes the pointer into another function taking a const, so
we just need to change its prototype.

Fixes: eca3b01d08 ("ASoC: switch over to use snd_soc_register_component() on s3c i2s")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27 14:59:46 +00:00
Linus Torvalds 6b5a12dbca ARM: SoC multiplatform code changes for v4.5
This branch is the culmination of 5 years of effort to bring the ARMv6
 and ARMv7 platforms together such that they can all be enabled and
 boot the same kernel. It has been a tremendous amount of cleanup and
 refactoring by a huge number of people, and creation of several new
 (and major) subsystems to better abstract out all the platform details
 in an appropriate manner.
 
 The bulk of this branch is a large patchset from Arnd that brings several
 of the more minor and older platforms we have closer to multiplatform
 support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview
 Much of this is moving around header files from old mach directories,
 but there are also some cleanup patches of debug_ll (lowlevel debug
 per-platform options) and other parts.
 
 Linus Walleij also has some patchs to clean up the older ARM Realview
 platforms by finally introducing DT support, and Rob Herring has some
 for ARM Versatile which is now DT-only. Both of these platforms are
 now multiplatform.
 
 Finally, a couple of patches from Russell for Dove PMU, and a fix from
 Valentin Rothberg for Exynos ADC, which were rebased on top of the
 series to avoid conflicts.
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code updates from Arnd Bergmann:
 "This branch is the culmination of 5 years of effort to bring the ARMv6
  and ARMv7 platforms together such that they can all be enabled and
  boot the same kernel.  It has been a tremendous amount of cleanup and
  refactoring by a huge number of people, and creation of several new
  (and major) subsystems to better abstract out all the platform details
  in an appropriate manner.

  The bulk of this branch is a large patchset from Arnd that brings
  several of the more minor and older platforms we have closer to
  multiplatform support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0
  and realview Much of this is moving around header files from old mach
  directories, but there are also some cleanup patches of debug_ll
  (lowlevel debug per-platform options) and other parts.

  Linus Walleij also has some patchs to clean up the older ARM Realview
  platforms by finally introducing DT support, and Rob Herring has some
  for ARM Versatile which is now DT-only.  Both of these platforms are
  now multiplatform.

  Finally, a couple of patches from Russell for Dove PMU, and a fix from
  Valentin Rothberg for Exynos ADC, which were rebased on top of the
  series to avoid conflicts"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
  ARM: realview: don't select SMP_ON_UP for UP builds
  ARM: s3c: simplify s3c_irqwake_{e,}intallow definition
  ARM: s3c64xx: fix pm-debug compilation
  iio: exynos-adc: fix irqf_oneshot.cocci warnings
  ARM: realview: build realview-dt SMP support only when used
  ARM: realview: select apropriate targets
  ARM: realview: clean up header files
  ARM: realview: make all header files local
  ARM: no longer make CPU targets visible separately
  ARM: integrator: use explicit core module options
  ARM: realview: enable multiplatform
  ARM: make default platform work for NOMMU
  ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location
  ARM: defconfig: use correct debug_ll settings
  ARM: versatile: convert to multi-platform
  ARM: versatile: merge mach code into a single file
  ARM: versatile: switch to DT only booting and remove legacy code
  ARM: versatile: add DT based PCI detection
  ARM: pxa: mark ezx structures as __maybe_unused
  ARM: pxa: mark raumfeld init functions as __maybe_unused
  ...
2016-01-20 18:03:56 -08:00
Mark Brown 14418aa7d4 Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sh', 'asoc/topic/ssm2518' and 'asoc/topic/sti' into asoc-next 2015-12-23 00:23:51 +00:00