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2013-06-07ASoC: dapm: Treat DAI widgets like AIF widgets for powerMark Brown1-23/+26
Even though they are virtual widgets DAI widgets still get counted for the DAPM context power management so we can't just use the active state to check if they should be powered as they may not be part of a complete path. Instead split them into input and output widgets and do the same power checks as we perform on AIFs. Reported-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-05-03Merge tag 'asoc-v3.10-4' of ↵Takashi Iwai1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v3.10 A few more bug fixes, the DAPM clock fix is actually a driver specific one since currently there's only one user of the clock support due to the problems relying on the clock API.
2013-04-30ASoC: dapm: use clk_prepare_enable and clk_disable_unprepareFabio Baltieri1-2/+2
Update dapm_clock_event to use clk_prepare_enable and clk_disable_unprepare. Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-12Merge remote-tracking branch 'asoc/topic/dapm' into asoc-nextMark Brown1-148/+171
2013-04-12Merge remote-tracking branch 'asoc/topic/core' into asoc-nextMark Brown1-1/+0
2013-04-01ASoC: dapm: Only clear paths we've walkedRyo Tsutsui1-12/+35
When clearing the walked flags there is no need to clear all paths, we only need to clear the paths we actually walked. This means we can split dapm_clear_walk() into input and output versions and rather than going through all DAPM paths we can recurse down the path until we encounter paths we have not yet walked. This reduces the number of operations we need to perform and improves cache locality. [Pulled out of the vendor tree that the patch was originally generated for by me, any bugs were introduced in that process -- broonie] Signed-off-by: Ryo Tsutsui <Ryo.Tsutsui@wolfsonmicro.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-01ASoC: dapm: Remove redundant clear_walk() for supply widgetsRyo Tsutsui1-2/+0
We already clear the walked state in dapm_widget_power_check(), no need to do it again. Signed-off-by: Ryo Tsutsui <Ryo.Tsutsui@wolfsonmicro.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-31ASoC: dapm: Implement mixer control sharingStephen Warren1-134/+136
This is the equivalent of commit af46800 "ASoC: Implement mux control sharing", but applied to mixers instead of muxes. This allows a single control to affect multiple mixer widgets at once, which is useful when there is a single set of register bits that affects multiple mixers in HW, for example both the L and R mixers of a stereo path. Without this, you either: 1) End up with multiple controls that affect the same register bits, but whose DAPM state falls out of sync with HW, since the DAPM state is only updated for the specific control that is modified, and not for other paths that are affected by the register bit(s). 2) False paths through DAPM, since you end up merging unconnected stereo paths together into a single widget which hosts the single control, and then branching back out again, thus conjoining the enable states of the two input paths. Now that the kcontrol creation logic is split out into a separate function, dapm_create_or_share_mixmux_kcontrol(), also use that to replace most of the body of dapm_new_mux(). This should produce no functional change, but simply eliminates some mostly duplicated code. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-26Merge remote-tracking branch 'asoc/fix/dapm' into asoc-nextMark Brown1-0/+14
2013-03-15ASoC: dapm: Fix pointer dereference in is_connected_output_ep()Peter Ujfalusi1-1/+0
*path is not yet initialized when we check if the widget is connected. The compiler also warns about this: sound/soc/soc-dapm.c: In function 'is_connected_output_ep': sound/soc/soc-dapm.c:824:18: warning: 'path' may be used uninitialized in this function Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-08ASoC: core: Remove unused "n_widgets" field from snd_soc_dapm structLars-Peter Clausen1-1/+0
Commit 497098be ("ASoC: dapm: Remove bodges for no-widget CODECs") removed the last user of the n_widgets field. Currently it is incremented for each widget added, but the value is never used, so we can remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-25ASoC: dapm: Fix handling of loopsMark Brown1-0/+15
Currently if a path loops back on itself we correctly skip over it to avoid going into an infinite loop but this causes us to ignore the need to power up the path as we don't count the loop for the purposes of counting inputs and outputs. This means that internal loopbacks within a device that have powered devices on them won't be powered up. Fix this by treating any path that is currently in the process of being recursed as having a single input or output so that it is counted for the purposes of power decisions. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
2013-02-11Merge remote-tracking branch 'asoc/topic/compress' into asoc-nextMark Brown1-2/+4
2013-02-08ASoC: core: Allow digital mute for captureMark Brown1-2/+4
Help avoid noise from the power up of the capture path propagating through into the start of the recording (especially noise caused by the ramp of microphone biases) by keeping the capture muted until after we've finished powering things up with DAPM in the same manner we do for playback. This allows us to take advantage of soft mute support in the hardware more effectively and is more consistent. The core code using the existing digital mute operation is updated to take advantage of this. Some additional cases in the soc-pcm code and suspend will need separate handling but these are less practically relevant than the main runtime stream start/stop case. Rather than refactor the digital mute function in every single driver a new operation is added for drivers taking advantage of this functionality, the old operation should be phased out over time. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by Vinod Koul <vinod.koul@intel.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
2013-01-12ASoC: dapm: Fix sense of regulator bypass modeMark Brown1-2/+10
Enable bypass when the regulator is idle, not when it is in use. This is consistent with what the few existing users actually want. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-21ASoC: dapm: Standardise ASoC DAPM messagesLiam Girdwood1-60/+74
Currently ASoC has a mixture of message prefixes e.g. "ASoC", "asoc" or none and message types e.g. pr_debug or dev_dbg. Make sure all ASoC core messages use the same "ASoC" prefix and convert any component device specific messages to use dev_dbg instead of pr_debug. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-09ASoC: dapm: Use card_list during DAPM shutdownMisael Lopez Cruz1-1/+1
DAPM shutdown incorrectly uses "list" field of codec struct while iterating over probed components (codec_dev_list). "list" field refers to codecs registered in the system, "card_list" field is used for probed components. Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com> Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-09-26ASoC: dapm: Allow regulators to bypass as well as disable when idleMark Brown1-2/+21
Allow regulators managed via DAPM to make use of the bypass support that has recently been added to the regulator API by setting a flag SND_SOC_DAPM_REGULATOR_BYPASS. When this flag is set the regulator will be put into bypass mode before being disabled, allowing the regulator to fall into bypass mode if it can't be disabled due to other users. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-22Merge tag 'v3.6-rc6' into for-3.7Mark Brown1-1/+4
Linux 3.6-rc6 has all our bug fixes. Conflicts (trivial overlap): sound/soc/omap/am3517evm.c
2012-09-18ASoC: Avoid recalculating the bitmask for SOC_ENUM controlsLars-Peter Clausen1-14/+8
For ENUM controls the bitmask is calculated based on the number of items. Currently this is done each time the control is accessed. And while the performance impact of this should be negligible we can easily do better. The roundup_pow_of_two macro performs the same calculation which is currently done manually, but it is also possible to use this macro with compile time constants and so it can be used to initialize static data. So we can use it to initialize the mask field of a ENUM control during its declaration. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-06ASoC: dapm: Ensure bypass paths are suspended and resumedMark Brown1-0/+22
Since bypass paths aren't part of DAPM streams and we may not have any DAPM streams there may not be anything that triggers a DAPM sync for them. Mark all input and output widgets as dirty and then sync to do so at the end of suspend and resume. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-08-25ASoC: dapm: Don't force card bias level to be updatedMark Brown1-1/+2
Commit 412312 (ASoC: dapm: Make sure all dapm contexts are updated) means that any DAPM context being updated will have the bias level automatically set, including the card. We can't safely do this as the card callbacks are called for each device context and so the management of the card bias is more complex. Several multi-component cards rely on this behaviour. Skip updates during the asynchronous run entirely. We should really do them in the synchronous section but it's not 100% clear which values to pick as the different DAPM contexts may have different bias levels. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-25ASoC: dapm: Make sure we update the bias level for CODECs with no opMark Brown1-0/+2
Commit 412312 (ASoC: dapm: Make sure all dapm contexts are updated) ensures that we update non-CODEC DAPM contexts but means that if a CODEC has no set_bias_level() operation it'll not be updated. Fix that. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-24Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-1/+1
Pull first round of SCSI updates from James Bottomley: "The most important feature of this patch set is the new async infrastructure that makes sure async_synchronize_full() synchronizes all domains and allows us to remove all the hacks (like having scsi_complete_async_scans() in the device base code) and means that the async infrastructure will "just work" in future. The rest is assorted driver updates (aacraid, bnx2fc, virto-scsi, megaraid, bfa, lpfc, qla2xxx, qla4xxx) plus a lot of infrastructure work in sas and FC. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (97 commits) [SCSI] Revert "[SCSI] fix async probe regression" [SCSI] cleanup usages of scsi_complete_async_scans [SCSI] queue async scan work to an async_schedule domain [SCSI] async: make async_synchronize_full() flush all work regardless of domain [SCSI] async: introduce 'async_domain' type [SCSI] bfa: Fix to set correct return error codes and misc cleanup. [SCSI] aacraid: Series 7 Async. (performance) mode support [SCSI] aha152x: Allow use on 64bit systems [SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning [SCSI] bfa: squelch lockdep complaint with a spin_lock_init [SCSI] qla2xxx: remove unnecessary reads of PCI_CAP_ID_EXP [SCSI] qla4xxx: remove unnecessary read of PCI_CAP_ID_EXP [SCSI] ufs: fix incorrect return value about SUCCESS and FAILED [SCSI] ufs: reverse the ufshcd_is_device_present logic [SCSI] ufs: use module_pci_driver [SCSI] usb-storage: update usb devices for write cache quirk in quirk list. [SCSI] usb-storage: add support for write cache quirk [SCSI] set to WCE if usb cache quirk is present. [SCSI] virtio-scsi: hotplug support for virtio-scsi [SCSI] virtio-scsi: split scatterlist per target ...
2012-07-23Merge branch 'for-3.5' into for-3.6Mark Brown1-7/+11
2012-07-23ASoC: dapm: Fix _PRE and _POST events for DAPM performance improvementsMark Brown1-1/+9
Ever since the DAPM performance improvements we've been marking all widgets as not dirty after each DAPM run. Since _PRE and _POST events aren't part of the DAPM graph this has rendered them non-functional, they will never be marked dirty again and thus will never be run again. Fix this by skipping them when marking widgets as not dirty. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Cc: stable@vger.kernel.org
2012-07-20[SCSI] async: introduce 'async_domain' typeDan Williams1-1/+1
This is in preparation for teaching async_synchronize_full() to sync all pending async work, and not just on the async_running domain. This conversion is functionally equivalent, just embedding the existing list in a new async_domain type. The .registered attribute is used in a later patch to distinguish between domains that want to be flushed by async_synchronize_full() versus those that only expect async_synchronize_{full|cookie}_domain to be used for flushing. [jejb: add async.h to scsi_priv.h for struct async_domain] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Tested-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-13ASoC: dapm: Fix compilation warningMarek Belisko1-0/+1
Fix following: sound/soc/soc-dapm.c: In function ‘dapm_clock_event’: sound/soc/soc-dapm.c:1021:1: warning: control reaches end of non-void function [-Wreturn-type] Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-06ASoC: dapm: Allow routes to be deleted at runtimeMark Brown1-0/+77
Since we're now relying on DAPM for things like enabling clocks when we reparent the clocks for widgets we need to either use conditional routes (which are expensive) or remove routes at runtime. Add a route removal API to support this use case. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-07-06ASoC: dapm: Mark widgets as dirty when a route is addedMark Brown1-0/+4
If we add a new route at runtime then we'll need to recheck the connections to the affected widgets. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-07-06ASoC: dapm: Make sure all dapm contexts are updatedLiam Girdwood1-3/+3
Make sure we set the bias level for all DAPM contexts when changing level. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-06ASoC: dapm: Fix locking during codec shutdownLiam Girdwood1-0/+5
Codec shutdown performs a DAPM power sequence that might cause conflicts and/or race conditions if another stream power event is running simultaneously. Use card's dapm mutex to protect any potential race condition between them. Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com> Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-07-03ASoC: dapm: Fix dapm_set_path_status() connectBenoît Thébaudeau1-4/+3
dapm_set_path_status() sets connect incorrectly in the case max > 1 with invert. In that case, the raw disconnect value should be max, which corresponds to the userspace value 0. This use case currently does not appear upstream, but it could break SOC_DAPM_SINGLE() or SOC_DAPM_SINGLE_TLV() elsewhere or in the future. This patch completes commit 3a9abe8. Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: <alsa-devel@alsa-project.org> Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-03ASoC: dapm: Remove incomplete stereo codeBenoît Thébaudeau1-10/+12
Stereo is not yet supported by dapm widgets, so remove stereo code from snd_soc_dapm_get_volsw(), and warn if stereo controls are detected. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-29ASoC: dapm: Fix snd_soc_dapm_put_volsw() connectBenoît Thébaudeau1-7/+1
snd_soc_dapm_put_volsw() sets connect incorrectly in the case max > 1 with invert. In that case, the raw disconnect value should be max, which corresponds to the userspace value 0. This use case currently does not appear upstream, but it could break SOC_DAPM_SINGLE() or SOC_DAPM_SINGLE_TLV() elsewhere or in the future. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-25Merge tag 'v3.5-rc4' into for-3.6Mark Brown1-2/+2
Linux 3.5-rc4 contains some bug fixes which overlap with new features.
2012-06-23ASoC: dapm: Try to add all routes even if one failsMark Brown1-4/+4
We may as well print as many errors as we can in one go rather than requiring developers to iterate through all their typos. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-06-08ASoC: dapm: Fix input list to use source widgetsLiam Girdwood1-1/+1
We should only add source widgets to the input list. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-05ASoC: dapm: The clock API is even less consistent than thoughtMark Brown1-1/+1
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04ASoC: dapm: Bodge for lack of a widely available clk APIMark Brown1-0/+6
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-06-04ASoC: dapm: Fix connected widget capture path query.Liam Girdwood1-1/+1
Make sure we check the correct path for capture. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04ASoC: dapm: Use devm_clk_get()Mark Brown1-1/+1
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-06-03ASoC: core: Add widget SND_SOC_DAPM_CLOCK_SUPPLYOla Lilja1-0/+38
Adds a supply-widget variant for connection to the clock-framework. This widget-type corresponds to the variant for regulators. Signed-off-by: Ola Lilja <ola.o.lilja@stericsson.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-13Merge tag 'v3.4-rc7' into for-3.5Mark Brown1-0/+2
Linux 3.4-rc7 Conflicts): drivers/base/regmap/regmap.c (overlap with bug fixes) sound/soc/blackfin/bf5xx-ssm2602.c (overlap with bug fixes)
2012-04-27ASoC: dapm: Move CODEC<->CODEC params off stackMark Brown1-12/+20
Reduce our stack consumption by moving the params off the stack, they are reasonably large and might be an issue on platforms with small stacks. Reported-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Ackeded-by: Liam Girdwood <lrg@ti.com>
2012-04-26Merge tag 'sound-3.4' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A workaround for an ASUS laptop and a few ASoC changes; most of the commits are tagged for stable, too." * tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: wm8994: Improve sequencing of AIF channel enables ALSA: HDA: Add external mic quirk for Asus Zenbook UX31E ASoC: fsi: update for dmaengine prep_slave_sg fallout. ASoC: core: Fix card RTD count for deferred probe. ASoC: cs42l73: don't use negative array index ASoC: dapm: Ensure power gets managed for line widgets
2012-04-26ASoC: dpcm: Add runtime dynamic route updateLiam Girdwood1-2/+6
This patch allows DPCM to dynamically alter the FE to BE PCM links at runtime based on mixer setting updates. DAPM is looked up after every mixer update and we perform a DPCM runtime update if the mixer has a change of value. This patchs adds/changes the following :- o Adds DPCM runtime update core. o Changes soc_dapm_mixer_update_power() and soc_dapm_mux_update_power() to return if a change has occured rather than 0. No other users check atm. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-18ASoC: dapm: Add API call to query valid DAPM pathsLiam Girdwood1-10/+112
In preparation for ASoC DSP support. Add a DAPM API call to determine whether a DAPM audio path is valid between source and sink widgets. This also takes into account all kcontrol mux and mixer settings in between the source and sink widgets to validate the audio path. This will be used by the DSP core to determine the runtime DAI mappings between FE and BE DAIs in order to run PCM operations. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-16ASoC: soc-dapm: Use '%llx' with 'u64' type.Fabio Estevam1-1/+1
Fix the following build warning: sound/soc/soc-dapm.c: In function 'snd_soc_dai_link_event': sound/soc/soc-dapm.c:2913: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'u64' '%llx' should be used with 'u64' type. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-16ASoC: core: Support transparent CODEC<->CODEC DAI linksMark Brown1-3/+152
Rather than having the user half start a stream but avoid any DMA to trigger data flow on links which don't pass through the CPU create a DAPM route between the two DAI widgets using a hw_params configuration provided by the machine driver with the new 'params' member of the dai_link struct. If no configuration is provided in the dai_link then use the old style even for CODEC<->CODEC links to avoid breaking systems. This greatly simplifies the userspace usage of such links, making them as simple as analogue connections with the stream configuration being completely transparent to them. This is achieved by defining a new dai_link widget type which is created when CODECs are linked and triggering the configuration of the link via the normal PCM operations from there. It is expected that the bias level callbacks will be used for clock configuration. Currently only the DAI format, rate and channel count can be configured and currently the only DAI operations which can be called are hw_params and digital_mute(). This corresponds well to the majority of CODEC drivers which only use other callbacks for constraint setting but there is obviously much room for extension here. We can't simply call hw_params() on startup as things like the system clocking configuration may change at runtime and in future it will be desirable to offer some configurability of the link parameters. At present we are also restricted to a single DAPM link for the entire DAI. Once we have better support for channel mapping it would also be desirable to extend this feature so that we can propagate per-channel power state over the link. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
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