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path: root/sound/soc/samsung/i2s.c
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2014-08-04Merge remote-tracking branches 'asoc/topic/rt5670', 'asoc/topic/rt5677', ↵Mark Brown1-6/+0
'asoc/topic/s6000', 'asoc/topic/samsung' and 'asoc/topic/sh-fsi' into asoc-next
2014-07-14ASoC: samsung: remove unused DMA dataArnd Bergmann1-6/+0
The s3c_dma_client structures and the 'ch' and 'ops' members in s3c_dma_params were only used by the legacy DMA driver and serve no function any more. This removes any reference to them. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-11ASoC: samsung-i2s: Maintain CDCLK settings across i2s_{shutdown/startup}Sylwester Nawrocki1-2/+11
Currently configuration of the CDCLK pad is being overwritten in the i2s_shutdown() callback in order to gate the SoC output clock. However if an ASoC machine driver doesn't restore that clock settings each time after opening the sound device this results in the CDCLK pin being permanently configured into input mode. I.e. the output clock will always stay disabled. Fix that by saving the CDCLKCON bit state in i2s_shutdown() and and restoring it in the i2s_startup() callback. Signed-off-by: Chen Zhen <zhen1.chen@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-04ASoC: samsung: Correct I2S DAI suspend/resume opsSylwester Nawrocki1-10/+6
We should save/restore relevant I2S registers regardless of the dai->active flag, otherwise some settings are being lost after system suspend/resume cycle. E.g. I2S slave mode set only during dai initialization is not preserved and the device ends up in master mode after system resume. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2014-05-26ASoC: samsung: Use params_width()Tushar Behera1-4/+4
commit 8c5178fca4ce ("ALSA: Add params_width() helpers") introduces a helper to get the sample width. Updating Samsung related sound drivers to use this helper. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-22ASoC: samsung: Handle errors when getting the op_clk clockSylwester Nawrocki1-1/+5
Ensure i2s->op_clk is not used when clk_get() for this clock fails. This prevents working with an incorrectly configured clock in some conditions. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-22ASoC: samsung: Use devm_snd_soc_register_platformTushar Behera1-2/+0
Replaced snd_soc_register_platform with devm_snd_soc_register_platform in samsung_asoc_dma_platform_register(). This makes the function samsung_asoc_dma_platform_unregister() redundant. This is removed and all its users are updated. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-21ASoC: samsung: Allow setting OP_CLK of the IIS Multi Audio InterfaceSylwester Nawrocki1-0/+4
This patch adds support for setting source clock of the "Core CLK" of the IIS Multi Audio Interface. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-23ASoC: samsung: Don't clear clock setting during i2s_startupTushar Behera1-3/+1
In exiting kernel, if DAIFMT flags are set in dai_link and I2S is set to run in master mode, the I2S clocks are not getting configured resulting in no output. Existing code clears the current I2S clock settings during i2s_startup and requires that the clocks are reconfigured. It then assumes that sound-card driver would call snd_soc_dai_{set_sysclk/set_fmt} to configure the root clock. 1. Since I2S clock settings remain fixed for a board, it would be better to set the clocks once during sound-card probe. 2. Also if the DAIFMT flags are set in dai_link, snd_soc_dai_set_fmt is called during DAI probe. If both these conditions are true, then I2S clock remains unconfigured during audio playback. Fix this by removing the code to clear rclk_srcrate in i2s_startup. Instead, reset this during DAI probe. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-08ASoC: samsung: Fix build on multiplatformSachin Kamat1-3/+3
PCM and S/PDIF drivers referenced mach headers for a trivial data structure. This caused build errors on multiplatform builds as machine headers are not accessible from driver files. Move the data structure definition to the driver header and remove the dependency. While at it rename the structure to avoid multiple definition errors as the same structure is also used by the platform code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-24ASoC: samsung: Remove dma.h inclusionSachin Kamat1-2/+0
mach/dma.h is not referenced by this file. Remove it. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-24ASoC: samsung: Add NULL check in i2s.cSachin Kamat1-1/+2
'res' could be NULL from one of the operations above (line 1243). Thus check 'res' for NULL before releasing the region to avoid null pointer dereference. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-12ASoC: samsung: Use ASoC dmaengine code where possibleMark Brown1-0/+2
Since all Exynos platforms have been converted to dmaengine and many of the older platforms are in the process of conversion they do not need to use the legacy s3c-dma APIs for DMA but can instead use the standard ASoC dmaengine helpers. This both allows them to benefit from improvements implemented in the generic code and supports multiplatform. This patch includes some fixes from Padma for Exynos SoCs, her testing was on a slightly earlier version of the patch due to unrelated breakage preventing testing. Signed-off-by: Mark Brown <broonie@linaro.org> Tested By: Padmavathi Venna <padma.v@samsung.com>
2013-12-12ASoC: samsung: Provide helper for DMA initMark Brown1-2/+5
In preparation for using the dmaengine helpers in ASoC rather than the dmaengine wrappers for the Samsung API wrap the configuration of dma_data. The dmaengine code expects different data to that used by the legacy API. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-11-04Merge remote-tracking branch 'asoc/topic/samsung' into asoc-nextMark Brown1-1/+1
2013-10-25ASoC: samsung: fix return value check in i2s_alloc_dai()Wei Yongjun1-1/+1
In case of error, the function platform_device_alloc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-24Merge remote-tracking branch 'asoc/topic/samsung' into asoc-nextMark Brown1-7/+7
2013-10-20ASoC: samsung: Initialise DMA data at device probe timeMark Brown1-7/+2
This is a minor simplification and will help with converting the platform to use the dmaengine helpers. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-17ASoC: samsung-i2s: Use devm_snd_soc_register_component()Mark Brown1-6/+6
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-17ASoC: samsung: Allow mono in i2s driverCharles Keepax1-1/+1
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-22Merge remote-tracking branch 'asoc/topic/samsung' into asoc-nextMark Brown1-52/+141
2013-08-20ASoC: samsung: Rename DMA platform registration functionsMark Brown1-3/+3
The current naming with a simple asoc_ prefix is too generic for use in multiplatform kernels. Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Sangbeom Kim <sbkim73@samsung.com>
2013-08-13ASoC: Samsung: I2S: Modify the I2S driver to support I2S on Exynos5420Padmavathi Venna1-8/+73
Exynos5420 added support for I2S TDM mode. For this, there are some register changes in the I2S controller. This patch adds the relevant register changes to support I2S in normal mode. This patch adds a quirk for TDM mode and if TDM mode is present all the relevent changes will be applied. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-13ASoC: Samsung: I2S: Add quirks as driver data in I2SPadmavathi Venna1-26/+36
Samsung has different versions of I2S introduced in different platforms. Each version has some new support added for multichannel, secondary fifo, s/w reset control and internal mux for rclk src clk. Each newly added change has a quirk. So this patch adds all the required quirks as driver data and based on compatible string from dtsi fetches the quirks. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-01ASoC: samsung: Make secondary I2S DAI device a child of primaryMark Brown1-0/+2
More for neatness than for any great utility. Really we shouldn't be creating the child device at all, refactoring will follow. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-26ASoC: Samsung: I2S: Modify driver to give more flexibilityPadmavathi Venna1-23/+35
This patch modifies the i2s driver to give flexibility towards register handling. This is a pre requirement for enabling i2s support on Exynos5420. This patch modifies only the required registers as a pre-requirement to support on Exynos5420. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-11ASoC: Samsung: Set RFS and BFS in slave modePadmavathi Venna1-4/+4
As per the User Manual, the RFS and BFS should be set in slave mode for correct operation. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Simon Glass <sjg@google.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-02ASoC: samsung: Remove obsolete GPIO based DT pinmuxingMark Brown1-62/+4
Since the Samsung platforms have moved to pinctrl for pin muxing and that is handled in the core the old GPIO based muxing code can just be removed. Something similar had been submitted by Thomas Abraham back in March but a resubmission following review never happened. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-04-12Merge remote-tracking branch 'asoc/topic/samsung' into asoc-nextMark Brown1-1/+1
2013-04-11ASoC: samsung: fix module_device_tableArnd Bergmann1-1/+1
The second argument to the module_device_table macro must be the name of the device id array. In the samsung i2s driver, there was a small typo, resulting in a build error when building it as a loadable module. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03ASoC: core: Merge Samsung fixes to avoid trivial context conflictMark Brown1-5/+12
Merge branch 'fix/samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-component to resolve trivial conflict Conflicts: sound/soc/samsung/i2s.c
2013-04-03ASoC: Samsung: set drvdata before adding secondary devicePrathyush K1-5/+8
Currently, a new platform device is created for secondary device by calling platform_device_register_resndata and then the drvdata is set for this device. The following patch has been added to driver core: "driver core: fix possible missing of device probe". This results in the added device getting probed immediately but the drvdata for the secondary device is not yet set. This patch removes the platform_device_register_resndata call and instead calls platform_device_alloc, platform_set_drvdata and platform_device_add which fixes the above issue. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03ASoC: Samsung: return error if drvdata is not setPrathyush K1-0/+4
This patch fixes a possible crash in case drvdata for the secondary device is not set. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-27ASoC: switch over to use snd_soc_register_component() on samsung i2sKuninori Morimoto1-4/+10
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-31ASoC: Samsung: I2S: Add support for runtime S2RR. Chandrasekar1-0/+26
This patch adds runtime suspend to resume support for I2S. I2S clk is disabled at suspend and enabled at resume. Signed-off-by: R. Chandrasekar <rcsekar@samsung.com> Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-29ASoC: samsung: Add DT support for i2sPadmavathi Venna1-45/+164
Add support for device based discovery. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-26ASoC: Samsung: Add I2S S/W RST in startup functionPadmavathi Venna1-0/+3
I2S module need to be reset after S2R. Keeping the S/W rst control part in resume didn't help in playing audio after resume. So this patch adds S/W RST control part in startup function which gets triggered for every new audio stream playback. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: R. Chandrasekar <rcsekar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24ASoC: samsung: Rename samsung i2s secondary device namePadmavathi Venna1-3/+28
All Samsung SoCs has max 3 i2s controllers. So the i2s secondary fifo interface device id was named as samsung-i2s.4. Renaming this to "samsung-i2s-sec" to support device tree in i2s driver. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-09ASoC: Samsung: remove __dev* attributesBill Pemberton1-5/+4
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-07ASoC: Samsung: Do not register samsung audio dma device as pdevPadmavathi Venna1-0/+4
Previously, the ASoC 'platform' (PCM/DMA) object was instantiated via a platform_device. This didn't represent the hardware well, since there was no separate hardware associated with this platform_device; it was a virtual device with sole purpose to call snd_soc_register_platform(). This change removes the platform_device completely. Each Samsung DAI now registers the ASoC 'platform' itself. Machine drivers are adjusted for the new 'platform' name. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28ASoC: Samsung: Get I2S src_clk from clock alias id.Padmavathi Venna1-6/+6
As the I2S src clks are registered with clkdev using generic connection id, driver can get the clk name using generic id. So the variable representing the array of rclk src clks is deleted. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-15ASoC: SAMSUNG: i2s: use clk_prepare_enable and clk_disable_unprepareThomas Abraham1-4/+4
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-19ARM: samsung: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the samsung include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Bryan Wu <bryan.wu@canonical.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Felipe Balbi <balbi@ti.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Liam Girdwood <lrg@ti.com> Cc: linux-samsung-soc@vger.kernel.org
2012-03-16ASoC: Samsung: Added to support mono recordingSangsu Park1-1/+12
The dma size will be changed by requested number of channel(mono/stereo) from platform. For mono recording, channels_min value should be 1. Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-01ASoC: Samsung: Update email id of the authorJaswinder Singh1-2/+2
I moved on from a great employer and the email-id no longer exists. Update email-id to a personal one, assuming I don't move on from myself anytime soon. And when I do, people don't get the eulogies bounced. Signed-off-by: Jaswinder Singh <jassisinghbrar@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-01ASoC: Samsung: Merge two identical if-else clausesJassi Brar1-6/+4
Saves two lines and a hell of a lot of embarrassment looking at the code. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-23ASoC: Add trivial pm_runtime usage to Samsung DAI driversMark Brown1-1/+5
Currently this won't actually do anything but using this will help the core SoC code track when the system is idle. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-07ASoC: Convert Samsung I2S driver to devm_kzalloc()Mark Brown1-14/+6
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com>
2011-11-29ASoC: Fix __iomem annotation for IDMA registersMark Brown1-1/+1
We always store the register address as __iomem but pass it around as a plain void * which upsets sparse. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-25ASoC: Convert Samsung directory to module_platform_driverMark Brown1-11/+1
Saves some boilerplate code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com>
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