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2012-03-02ASoC: Add dmaengine PCM helper functionsLars-Peter Clausen1-0/+49
This patch adds a set of functions which are intended to be used when implementing a dmaengine based sound PCM driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-27ALSA: Use a define for the number of jack switch typesMark Brown1-0/+3
This is intended to facilitate the merge of the two jack detection mechanisms. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-21ASoC: core: Add support for masking out parts of coefficient blocksMark Brown1-0/+9
Chip designers frequently include things like the enable and disable controls for algorithms in the register blocks which also hold the coefficients. Since it's desirable to split out the enable/disable control from userspace the plain SND_SOC_BYTES() isn't optimal for these devices. Add a SND_SOC_BYTES_MASK() which allows a bitmask from the first word of the block to be excluded from the control. This supports the needs of devices I've looked at and lets us have a reasonably simple API. Further controls can be added in future if that's needed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-21ASoC: core: Add SND_SOC_BYTES control for coefficient blocksMark Brown1-0/+18
Allow devices to export blocks of registers to the application layer, intended for use for reading and writing coefficient data which can't usefully be worked with by the kernel at runtime (for example, due to requiring complex and expensive calculations or being the results of callibration procedures). Currently drivers are using platform data to provide configurations for coefficient blocks which isn't at all convenient for runtime management or configuration development. Currently only devices using regmap are supported, an error will be generated for any attempt to work with a byte control on a non-regmap device. There's no fundamental block to other devices so support could be added if required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-19ASoC: fsi: Add DMAEngine supportKuninori Morimoto1-0/+2
This patch supports DMAEngine to FSI driver. It supports only Tx case at this point. If platform/cpu doesn't support DMAEngine, FSI driver will use PIO transfer. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-17ASoC: dapm: Implement and instantiate DAI widgetsMark Brown2-0/+8
In order to allow us to do smarter things with DAI links create DAPM widgets which directly represent the DAIs in the DAPM graph. These are automatically created from the DAIs as we probe the card with references held in both directions between the widget and the DAI. The widgets are not made available for direct instantiation by drivers, they are created automatically from the DAIs. Drivers should be updated to create stream routes using DAPM maps rather than by annotating AIF and DAC widgets with streams. In order to ease transition to this model from existing drivers we automatically create DAPM routes between the DAI widgets and the existing stream widgets which are started and stopped by the DAI widgets, though the old stream handling mechanism is still in place. This also has the nice effect of removing non-DAPM devices as any device with a DAI acquires a widget automatically which will allow future simplifications to the core DAPM logic. The intention is that in future the AIF and DAI widgets will gain the ability to interact such that we are able to manage activity on individual channels independantly rather than powering up and down the entire AIF as we do currently. Currently we only generate these for CODECs, mostly as I have no systems with non-CODEC DAPM to integrate with. It should be a simple matter of programming to add the additional hookup for these. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-17ASoC: dapm: Constify lots of names that are never modifiedMark Brown2-5/+5
Neater and avoids warnings when used in other places where const strings are desired. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-17ASoC: dapm: Supply the DAI and substream when calling stream eventsMark Brown1-2/+2
In order to allow us to do something smarter than iterate through widgets doing strcmp() to work out what to power up for stream events change the interface used to generate them to be based on the combination of a DAI and a stream direction rather than just a simple string identifying the stream. At some point we'll probably want a set of channels too. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-17ASoC: dapm: Unexport snd_soc_dapm_new_control()Mark Brown1-2/+0
Everything now uses snd_soc_dapm_new_controls() instead so we don't need to make it part of the external API. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-17ALSA: core: Constify the name in new kcontrolsMark Brown1-1/+1
We never modify it and this lets us use a const string as the name without warnings. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-15ASoC: core: add platform DAPM debugfs supportSebastien Guiriec1-0/+5
Allow platform widgets to be visible in debugfs like codec widgets. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-09Merge tag 'v3.3-rc3' as we've got several bugfixes in there which areMark Brown1-0/+2
colliding annoyingly with development. Linux 3.3-rc3 .. the number of the half-beast? Conflicts: sound/soc/codecs/wm5100.c sound/soc/codecs/wm8994.c
2012-02-09Merge branch 'topic/pcm-internal' of ↵Mark Brown1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into for-3.4
2012-02-09ASoC: core: Allow CODECs to set ignore_pmdown_time in the driver structMark Brown1-0/+2
This is usually not a use case dependant flag anyway. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-02-09ALSA: PCM - Add PCM creation API for internal PCMs.Liam Girdwood1-0/+4
The new ASoC dynamic PCM core needs to create PCMs and substreams that are for use by internal ASoC drivers only and not visible to userspace for direct IO. These new PCMs are similar to regular PCMs expect they have no device nodes or procfs entries. The ASoC component drivers use them in exactly the same way as regular PCMs for PCM and DAI operations. The intention is that a dynamic PCM based driver will register both regular PCMs and internal PCMs. The regular PCMs will be used for all IO with userspace however the internal PCMs will be used by the driver to route digital audio through numerous back end DAI links (with potentially a DSP providing different hw_params, DAI formats based on the regular front end PCM params) to devices like CODECs, MODEMs, Bluetooth, FM, DMICs, etc This patch adds a new snd_pcm_new_internal() API call to create the internal PCM without device nodes or procfs. It also adds adds a new internal flag to snd_pcm. [fixed minor coding-style issues by tiwai] Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-06ASoC: dapm: Export mixer|mux_update_power() to public API.Liam Girdwood1-0/+6
Allow for the operation of custom mixer and mux DAPM widgets that can call snd_soc_dapm_mixer_update_power() and snd_soc_dapm_mux_update_power() directly after updating their status. This is useful with complex DAPM Mixer operations where we need to do additional work in addition to setting a few mixer register bits. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-04ASoC: core: Add support for DAI and machine kcontrols.Liam Girdwood1-1/+5
Currently ASoC can only add kcontrols using codec and platform component device handles. It's also desirable to add kcontrols for DAIs (i.e. McBSP) and for SoC card machine drivers too. This allows the kcontrol to have a direct handle to the parent ASoC component DAI/SoC Card/Platform/Codec device and hence easily get it's private data. This change makes snd_soc_add_controls() static and wraps it in the folowing calls (card and dai are new) :- snd_soc_add_card_controls() snd_soc_add_codec_controls() snd_soc_add_dai_controls() snd_soc_add_platform_controls() This patch also does a lot of small mechanical changes in individual codec drivers to replace snd_soc_add_controls() with snd_soc_add_codec_controls(). It also updates the McBSP DAI driver to use snd_soc_add_dai_controls(). Finally, it updates the existing machine drivers that register controls to either :- 1) Use snd_soc_add_card_controls() where no direct codec control is required. 2) Use snd_soc_add_codec_controls() where there is direct codec control. In the case of 1) above we also update the machine drivers to get the correct component data pointers from the kcontrol (rather than getting the machine pointer via the codec pointer). Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-03ASoC: fsi: PortA/B information was controlled by sh_fsi_port_infoKuninori Morimoto1-3/+7
Current FSI got each PortA/B parameter by porta_flags/portb_flags from platform. And .set_rate function was shared for PortA/B. This structure was not readable and not flexible. This patch adds sh_fsi_port_info, and its own settings was added on each platform. it is preparation for DMAEngine support Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-31Merge branch 'fix/asoc' into for-linusTakashi Iwai2-3/+3
2012-01-30ASoC: max9768: add driver for max9768 amplifierWolfram Sang1-0/+24
Add a driver supporting the volume control and the mute pin. Shdn pin and DAPM are not taken care of yet. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-30ALSA: Add #ifdef CONFIG_PCI guard for snd_pci_quirk_* functionsAxel Lin1-0/+2
This fixes below build warning when CONFIG_PCI is not set. CC sound/sound_core.o In file included from sound/sound_core.c:15: include/sound/core.h:454: warning: 'struct pci_dev' declared inside parameter list include/sound/core.h:454: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-01-26ASoC: wm2200: Add WM2200 CODEC driverMark Brown1-0/+41
The WM2200 is a low power mobile CODEC with enhanced Wolfson myZone Ambient Noise Cancellation (ANC) intended for mobile telephony applications. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-26ASoC: Provide REGULATOR_SUPPLY widget typeMark Brown1-0/+9
Modern devices allow systems to enable and disable individual supplies on the device, allowing additional power saving by switching off regulators which power portions of the device which are not currently in use. Add a new SND_SOC_DAPM_REGULATOR_SUPPLY widget type factoring out the code for managing such widgets from individual drivers. The widget name will be used as the supply name when requesting the regulator from the regulator API. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-01-25ALSA: Release v1.0.25Jaroslav Kysela1-1/+1
Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-01-24ASoC: wm8962: Optimise power consumption for IN4 DC measurement usageMark Brown1-0/+6
When the hardware is configured with one or both of the IN4 inputs used for DC measurement (with no DC blocking capacitor connected) then we can improve power consumption slightly in idle modes by applying a register write sequence. Provide platform data to enable this, implemented using a regmap patch. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-21ASoC: Use regmap update bits operation for drivers using regmapMark Brown1-0/+1
If a driver is using regmap directly ensure that we're coherent with non-ASoC register updates by using the regmap API directly to do our read/modify/write cycles. This will bypass the ASoC cache but drivers using regmap directly should not be using the ASoC cache. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20ASoC: Allow drivers to specify how many bits are significant on a DAIMark Brown1-0/+1
Most devices accept data in formats that don't correspond directly to their internal format. ALSA allows us to set a msbits constraint which tells userspace about this in case it finds it useful (for example, in order to avoid wasting effort dithering bits that will be ignored when raising the sample size of data) so provide a mechanism for drivers to specify the number of bits that are actually significant on a DAI and add the appropriate constraints along with all the others. This is done slightly awkwardly as the constraint is specified per sample size - we loop over every possible sample size, including ones that the device doesn't support and including ones that have fewer bits than are actually used, but this is harmless as the upper layers do the right thing in these cases. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-01-12Merge branch 'for-linus' of ↵Linus Torvalds12-11/+815
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (526 commits) ASoC: twl6040 - Add method to query optimum PDM_DL1 gain ALSA: hda - Fix the lost power-setup of seconary pins after PM resume ALSA: usb-audio: add Yamaha MOX6/MOX8 support ALSA: virtuoso: add S/PDIF input support for all Xonars ALSA: ice1724 - Support for ooAoo SQ210a ALSA: ice1724 - Allow card info based on model only ALSA: ice1724 - Create capture pcm only for ADC-enabled configurations ALSA: hdspm - Provide unique driver id based on card serial ASoC: Dynamically allocate the rtd device for a non-empty release() ASoC: Fix recursive dependency due to select ATMEL_SSC in SND_ATMEL_SOC_SSC ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs ALSA: hda - Use auto-parser for HP laptops with cx20459 codec ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info() ALSA: hdsp - Fix potential Oops in snd_hdsp_info_pref_sync_ref() ALSA: hda/cirrus - support for iMac12,2 model ASoC: cx20442: add bias control over a platform provided regulator ALSA: usb-audio - Avoid flood of frame-active debug messages ALSA: snd-usb-us122l: Delete calls to preempt_disable mfd: Put WM8994 into cache only mode when suspending ... Fix up trivial conflicts in: - arch/arm/mach-s3c64xx/mach-crag6410.c: renamed speyside_wm8962 to tobermory, added littlemill right next to it - drivers/base/regmap/{regcache.c,regmap.c}: duplicate diff that had already come in with other changes in the regmap tree
2012-01-12Merge branch 'topic/hda' into for-linusTakashi Iwai1-0/+8
2012-01-12Merge branch 'topic/misc' into for-linusTakashi Iwai6-1/+731
2012-01-10ASoC: Dynamically allocate the rtd device for a non-empty release()Mark Brown1-3/+3
The device model needs a release() function so it can free devices when they become dereferenced. Do that for rtds. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-09Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-2/+2
Driver specific changes Again, a lot of platforms have changes in here: pxa, samsung, omap, at91, imx, ... * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) ARM: sa1100: clean up of the clock support ARM: pxa: add dummy clock for sa1100-rtc RTC: sa1100: support sa1100, pxa and mmp soc families RTC: sa1100: remove redundant code of setting alarm RTC: sa1100: Clean out ost register Input: zylonite-wm97xx - replace IRQ_GPIO() with gpio_to_irq() pcmcia: pxa: replace IRQ_GPIO() with gpio_to_irq() ARM: EXYNOS: Modified files for SPI consolidation work ARM: S5P64X0: Enable SDHCI support ARM: S5P64X0: Add lookup of sdhci-s3c clocks using generic names ARM: S5P64X0: Add HSMMC setup for host Controller ARM: EXYNOS: Add USB OHCI support to ORIGEN board USB: Add Samsung Exynos OHCI diver ARM: EXYNOS: Add USB OHCI support to SMDKV310 board ARM: EXYNOS: Add USB OHCI device net: macb: fix build break with !CONFIG_OF i2c: tegra: Support DVC controller in device tree i2c: tegra: Add __devinit/exit to probe/remove net/at91_ether: use gpio_is_valid for phy IRQ line ARM: at91/net: add macb ethernet controller in 9g45/9g20 DT ...
2012-01-03switch procfs to umode_t useAl Viro1-1/+1
both proc_dir_entry ->mode and populating functions Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-12-31ALSA: export compress headersVinod Koul1-0/+2
Export compress_offload.h and compress_params.h for userland to use Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-23ALSA: core: add API header and driver header filesVinod Koul2-0/+328
This patch adds the header files for ioctl definitions and header file for driver APIs for lower level device drivers to use Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-23ALSA: core: add compress parameter definationsVinod Koul1-0/+397
The patch adds the various definations used to define the encoder and decoder parameters Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-23ALSA: core: add support for compressed devicesOmair Mohammed Abdullah2-1/+4
Use the minor numbers 2 and 3 for audio compressed offload devices. Also add support for these devices in core Signed-off-by: Omair Mohammed Abdullah <omair.m.abdullah@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-22ASoC: Declare soc_new_pcm() properlyMark Brown1-0/+1
Ensure that everything is seeing the same declaration by moving it to a header file rather than putting the declaration in soc-core.c Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2011-12-22ASoC: Allow DAI links to be specified using device tree nodesStephen Warren1-0/+4
DAI link endpoints and platform (DMA) devices are currently specified by name. When instantiating sound cards from device tree, it may be more convenient to refer to these devices by phandle in the device tree, and for code to describe DAI links using the "struct device_node *" ("of_node") those phandles map to. This change adds new fields to snd_soc_dai_link which can "name" devices using of_node, enhances soc_bind_dai_link() to allow binding based on of_node, and enhances snd_soc_register_card() to ensure that illegal combinations of name and of_node are not used. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-20ASoC: Add utility to parse DAPM routes from device treeStephen Warren1-0/+2
Implement snd_soc_of_parse_audio_routing(), a utility function that can parses a simple DAPM route table from device tree.The machine driver specifies the DT property to use, since this is binding-specific. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-20ASoC: Add utility to set a card's name from device treeStephen Warren1-0/+3
Implement snd_soc_of_parse_card_name(), a utility function that sets a card's name from device tree. The machine driver specifies the DT property to use, since this is binding-specific. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-13ASoC: Remove rbtree register cacheMark Brown1-1/+0
All users now use regmap directly so delete the ASoC version of the code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-06ASoC: WM8903: Fix platform data gpio_cfg confusionStephen Warren1-2/+5
wm8903_platform_data.gpio_cfg[] was intended to be interpreted as follows: 0: Don't touch this GPIO's configuration register 1..7fff: Write that value to the GPIO's configuration register 8000: Write zero to the GPIO's configuration register other: Undefined (invalid) The rationale is that platform data is usually global data, and a value of zero means that the field wasn't explicitly set to anything (e.g. because the field was new to the pdata type, and existing users weren't update to initialize it) and hence the value zero should be ignored. 0x8000 is an explicit way to get 0 in the register. The code worked this way until commit 7cfe561 "ASoC: wm8903: Expose GPIOs through gpiolib", where the behaviour was changed due to my lack of awareness of the above rationale. This patch reverts to the intended behaviour, and updates all in-tree users to use the correct scheme. This also makes WM8903 consistent with other devices that use a similar scheme. WM8903_GPIO_NO_CONFIG is also renamed to WM8903_GPIO_CONFIG_ZERO so that its name accurately reflects its purpose. Signed-off-by: Stephen Warren <swarren@nvidia.com> Cc: Olof Johansson <olof@lixom.net> Cc: Colin Cross <ccross@android.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-02ASoC: Drop unused state parameter from CODEC suspend callbackLars-Peter Clausen1-2/+1
The existence of this parameter is purely historical. None of the CODEC drivers uses it and we always pass in the same value anyway, so it should be safe to remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-02ASoC: Add signal generator widget typeMark Brown1-0/+4
A signal generator behaves as an input would but is not considered for any of the special behaviour associated with external input pins. This is especially useful when automatically working out not connected widgets. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2011-12-02ASoC: mxs-saif: remove function in platform_dataDong Aisheng1-2/+2
Add master_mode and master_id in platfrom_data since it's board specific and board knows it. Then we can remove the function pointer in platfrom_data to make the driver more devicetree friendly. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-11-24ASoC: fsi-ak4642: modify specification method of FSI / ak464xKuninori Morimoto1-0/+12
Current fsi-ak4642 was using id_entry name in order to specify FSI port and ak464x codec. But it was no sense, no flexibility. Platform can specify FSI/ak464x pair by this patch. Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23ASoC: Implement fully_routed card propertyStephen Warren2-0/+2
A card is fully routed if the DAPM route table describes all connections on the board. When a card is fully routed, some operations can be automated by the ASoC core. The first, and currently only, such operation is described below, and implemented by this patch. Codecs often have a large number of external pins, and not all of these pins will be connected on all board designs. Some machine drivers therefore call snd_soc_dapm_nc_pin() for all the unused pins, in order to tell the ASoC core never to activate them. However, when a card is fully routed, the information needed to derive the set of unused pins is present in card->dapm_routes. In this case, have the ASoC core automatically call snd_soc_dapm_nc_pin() for each unused codec pin. This has been tested with soc/tegra/tegra_wm8903.c and soc/tegra/trimslice.c. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-16ALSA: Introduce common helper functions for jack-detection controlTakashi Iwai1-0/+8
Now move the helper function for creating and reporting the jack-detection to the common place. The driver that needs this functionality should select CONFIG_SND_KCTL_JACK kconfig. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-14ASoC: sta32x: add workaround for ESD reset issueJohannes Stezenbach1-0/+1
sta32x resets and loses all configuration during ESD test. Work around by polling the CONFA register once a second and restore all coeffcients and registers when CONFA changes unexpectedly. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 13:16:55 +0000