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path: root/sound/pci/hda/patch_hdmi.c
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2015-09-03drm/i915: Drop port_mst_index parameter from pin/eld callbackDavid Henningsson1-1/+1
The port_mst_index parameter was reserved for future use, but maintainers prefer to add it later when it is actually used. [Note: this is an update patch to commit [51e1d83cab99: drm/i915: Call audio pin/ELD notify function] where I mistakenly applied the older version. Jani and Daniel's review tags were to the latest version, so I add them below, too -- tiwai] Signed-off-by: David Henningsson <david.henningsson@canonical.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-02ALSA: hda - Wake the codec up on pin/ELD notify eventsDavid Henningsson1-1/+21
Whenever there is an event from the i915 driver, wake the codec and recheck plug/unplug + ELD status. This fixes the issue with lost unsol events in power save mode, the codec and controller can now sleep in D3 and still know when the HDMI monitor has been connected. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-25ALSA: hda - Refresh sysfs at snd_hda_codec_update_widgets()Takashi Iwai1-1/+0
In the commit [fa4f18b4f402: ALSA: hda - Refresh widgets sysfs at probing Haswell+ HDMI codecs], snd_hdac_refresh_widget_sysfs() is explicitly called in the codec driver. But this results in refreshing twice, as snd_hdac_refresh_widget_sysfs() itself calls snd_hdac_refresh_widgets() function. Instead, we can replace the call in snd_hda_codec_update_widgets() with snd_hdac_refresh_widget_sysfs(). This also fixes the missing sysfs update for ca0132, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-21ALSA: hda - Refresh widgets sysfs at probing Haswell+ HDMI codecsTakashi Iwai1-0/+1
Intel Haswell (and later) codec refreshes the widgets tree to expose the whole widget nodes at probing. However, this refresh was missing for sysfs tree. This patch adds the missing piece, as we have now a proper API. Reported-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-07-21ALSA: hda - Add new GPU codec ID 0x10de007d to snd-hdaAaron Plattner1-0/+2
Vendor ID 0x10de007d is used by a yet-to-be-named GPU chip. This chip also has the 2-ch audio swapping bug, so patch_nvhdmi is appropriate here. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-07-06ALSA: hda - add codec ID for Broxton display audio codecLibin Yang1-0/+2
This patch adds codec ID (0x8086280a) and module alias for Broxton display codec. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-29ALSA: hda: Delete an unnecessary check before the function call ↵Markus Elfring1-1/+1
"snd_info_free_entry" The snd_info_free_entry() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-09ALSA: hda: Intel: enable automatic runtime pm for HDMI codecs by defaultLu, Han1-0/+4
Enable runtime PM of the HDMI audio codec on the latest Intel platforms. So the HD-A controller or HDMI codec can suspend when idle timeout by default and release the GFX power well. The patch influences HSW/BDW/BYT/BSW/SKL. Eariler platforms and third party analog codecs will not be influenced. Signed-off-by: Lu, Han <han.lu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-03ALSA: hda - remove controller dependency on i915 power well for SKLLibin Yang1-1/+1
For SKL, only the HDMI codec is in the display power well while the HD-A controller isn't. So the controller flag 'need_i915_power' is not set to release the display power after probe, and the codec flag 'link_power_control' is set to request/release the display power via bus link_power ops. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-27ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FSJie Yang1-2/+2
We may disable proc fs only for sound part, to reduce ALSA memory footprint. So add CONFIG_SND_PROC_FS and replace the old CONFIG_PROC_FSs in alsa code. With sound proc fs disabled, we can save about 9KB memory size on X86_64 platform. Signed-off-by: Jie Yang <yang.jie@intel.com> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-18ALSA: hda/hdmi - Add Tegra210 supportThierry Reding1-0/+1
Tegra210 contains a similar codec as Tegra124 and can be supported using the same patch function. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-18ALSA: hda/hdmi - Add Tegra114 supportThierry Reding1-0/+1
Tegra114 contains the same codec as Tegra124 and can be supported using the same patch function. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-18ALSA: hda/hdmi - Add Tegra30 supportThierry Reding1-0/+1
Tegra30 contains the same codec as Tegra124 and can be supported using the same patch function. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-18ALSA: hda/hdmi - Implement Tegra-specific patchThierry Reding1-1/+166
The HDMI codec on NVIDIA Tegra SoCs has a feature that doesn't exist on the MCP or GPU variants. The highest bit in the vendor-defined scratch registers can be used to trigger an interrupt in the HDMI codec, which is signalled to the HDMI driver. This can be used to pass information, such as the HDA format, to the HDMI driver so that it can reconfigure itself accordingly. While at it, change the name of the codec to Tegra124 since there are no other SoCs in the Tegra12x family. There isn't really a Tegra12x family. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-11ALSA: hda - Remove unused call to "get_pin" in patch_hdmi.cDavid Henningsson1-2/+0
Janitorial patch (no functional change) Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-29Merge branch 'topic/hda' into for-nextTakashi Iwai1-0/+9
2015-04-29ALSA: hda - remove controller dependency on i915 power well for ↵Mengdong Lin1-0/+9
Baytrail/Braswell For Baytrail (Valleyview) and Braswell (Cherryview), only the HDMI codec is in the display power well while the HD-A controller isn't. So the controller flag 'need_i915_power' is not set to release the display power after probe, and the codec flag 'link_power_control" is set to request/release the display power via bus link_power ops. Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-28Merge branch 'topic/jack' into for-nextTakashi Iwai1-1/+1
2015-04-27ALSA: hda - Update to use the new jack kctls methodJie Yang1-1/+1
Jack snd_kcontrols can now be created during snd_jack_new() or by later calling snd_jack_add_new_kctls(). This patch creates the jacks during the initialisation stage for both phantom and non phantom jacks. Signed-off-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-24ALSA: core: Remove child proc file elements recursivelyTakashi Iwai1-1/+1
This patch changes the way to manage the resource release of proc files: namely, let snd_info_free_entry() freeing the whole children. This makes it us possible to drop the snd_device_*() management. Then snd_card_proc_new() becomes merely a wrapper to snd_info_create_card_entry(). Together with this change, now you need to call snd_info_free_entry() for a proc entry created via snd_card_proc_new(), while it was freed via snd_device_free() beforehand. Acked-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-08ALSA: hda - Work around races of power up/down with runtime PMTakashi Iwai1-2/+2
Currently, snd_hdac_power_up()/down() helpers checks whether the codec is being in pm (suspend/resume), and skips the call of runtime get/put during it. This is needed as there are lots of power up/down sequences called in the paths that are also used in the PM itself. An example is found in hda_codec.c::codec_exec_verb(), where this can power up the codec while it may be called again in its power up sequence, too. The above works in most cases, but sometimes we really want to wait for the real power up. For example, the control element get/put may want explicit power up so that the value change is assured to reach to the hardware. Using the current snd_hdac_power_up(), however, results in a race, e.g. when it's called during the runtime suspend is being performed. In the worst case, as found in patch_ca0132.c, it can even lead to the deadlock because the code assumes the power up while it was skipped due to the check above. For dealing with such cases, this patch makes snd_hdac_power_up() and _down() to two variants: with and without in_pm flag check. The version with pm flag check is named as snd_hdac_power_up_pm() while the version without pm flag check is still kept as snd_hdac_power_up(). (Just because the usage of the former is fewer.) Then finally, the patch replaces each call potentially done in PM with the new _pm() variant. In theory, we can implement a unified version -- if we can distinguish the current context whether it's in the pm path. But such an implementation is cumbersome, so leave the code like this a bit messy way for now... Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=96271 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23ALSA: hda - Use regmap for command verb caches, tooTakashi Iwai1-1/+1
Like the previous patches, this patch converts also to the regmap, at this time, the cached verb writes are the target. But this conversion needs a bit more caution than before. - In the old code, we just record any verbs as is, and restore them at resume. For the regmap scheme, this doesn't work, since a few verbs like AMP or DIGI_CONVERT are asymmetrical. Such verbs are converted either to the dedicated function (snd_hda_regmap_xxx_amp()) or changed to the unified verb. - Some verbs have to be declared as vendor-specific ones before accessing via regmap. Also, the minor optimization with codec->cached_write flag is dropped in a few places, as this would confuse the operation. Further optimizations will be brought in the later patches, if any. This conversion ends up with a drop of significant amount of codes, mostly the helper codes that are no longer used. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23ALSA: hda - Use regmap for amp accessesTakashi Iwai1-1/+1
This patch converts the amp access functions to the regmap helpers. The amp values were formerly cached in the own hash table. Now it's dropped by the regmap's cache. The only tricky conversion is snd_hda_codec_amp_init(). This function shouldn't do anything if the amp was already initialized. For achieving this behavior, a value is read once at first temporarily in the cache-only mode. Only if it returns an error, i.e. the item still doesn't exist in the cache, it proceeds to the update. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23ALSA: hda - Move a part of hda_codec stuff into hdac_deviceTakashi Iwai1-10/+10
Now some codes and functionalities of hda_codec struct are moved to hdac_device struct. A few basic attributes like the codec address, vendor ID number, FG numbers, etc are moved to hdac_device, and they are accessed like codec->core.addr. The basic verb exec functions are moved, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-03ALSA: hda - Use standard workqueue for unsol and jack eventsTakashi Iwai1-5/+3
The events that are handled by HD-audio drivers are no frequent and urgent ones, so we can use the standard workqueue without any problem nowadays. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-03ALSA: hda - Allocate hda_pcm objects dynamicallyTakashi Iwai1-20/+10
So far, the hda_codec object kept the hda_pcm list in an array, and the codec driver was expected to assign the array. However, this makes the object life cycle management harder, because the assigned array is freed at the codec driver detach while it might be still accessed by the opened streams. In this patch, we allocate each hda_pcm object dynamically and manage it as a linked list. Each object has a kref refcount, and both the codec driver binder and the PCM open/close touches it, so that the object won't be freed while in use. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-03ALSA: hda - Add card field to hda_codec structTakashi Iwai1-3/+3
Allow the codec object to have an individual card pointer. Not only this simplifies the redirections in many places, also this will allow us to make each codec assigned to a different card object. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: hda - Bind codecs via standard busTakashi Iwai1-23/+4
Now we create the standard HD-audio bus (/sys/bus/hdaudio), and bind the codec driver with the codec device over there. This is the first step of the whole transition so that the changes to each codec driver are kept as minimal as possible. Each codec driver needs to register hda_codec_driver struct containing the currently existing preset via the new helper macro module_hda_codec_driver(). The old hda_codec_preset_list is replaced with this infrastructure. The generic parsers (for HDMI and other) are also included in the preset with the special IDs to bind uniquely. In HD-audio core side, the device binding code is split to hda_bind.c. It provides the snd_hda_bus_type implementation to match the codec driver with the given codec vendor ID. It also manages the module auto-loading by itself like before: when the matching isn't found, it tries to probe the corresponding codec modules, and finally falls back to the generic drivers. (The special ID mentioned above is set at this stage.) The only visible change to outside is that the hdaudio sysfs entry now appears in /sys/bus/devices, not as a sound class device. More works to move the suspend/resume and remove ops will be (hopefully) done in later patches. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-07ALSA: hda - Add new GPU codec ID 0x10de0072 to snd-hdaAaron Plattner1-0/+2
Vendor ID 0x10de0072 is used by a yet-to-be-named GPU chip. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-16ALSA: hda/hdmi - apply Haswell fix-ups to Skylake display codecLibin Yang1-1/+3
Skylake and Haswell have the same behavior on display audio. So this patch applys Haswell fix-ups to Skylake. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-15ALSA: hda - add codec ID for Skylake display audio codecLibin Yang1-0/+2
This patch adds codec ID (0x80862809) and module alias for Skylake display codec. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-20ALSA: hda - hdmi: Fix missing ELD change event on plug/unplugAnssi Hannula1-6/+9
The ELD ALSA control change event is sent by hdmi_present_sense() when eld_changed is true. Currently, it is only true when the ELD buffer contents have been modified. However, the user-visible ELD controls also change to a zero-length value and back when eld_valid is unset/set, and no event is currently sent in such cases (such as when unplugging or replugging a sink). Fix the code to always set eld_changed if eld_valid value is changed, and therefore to always send the change event when the user-visible value changes. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Cc: David Henningsson <david.henningsson@canonical.com> Cc: <stable@vger.kernel.org> # 3.9+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-09-16ALSA: hda - Allow multiple callbacks for jackTakashi Iwai1-4/+10
So far, hda_jack infrastructure allows only one callback per jack, and this makes things slightly complicated when a driver wants to assign multiple tasks to a jack, e.g. the standard auto-mute with a power up/down sequence. This can be simplified if the hda_jack accepts multiple callbacks. This patch is such an extension: the callback-specific part (the function and private_data) is split to another struct from hda_jack_tbl, and multiple such objects can be assigned to a single hda_jack_tbl entry. The new struct hda_jack_callback is passed to each callback function now, thus the patch became bigger than expected. But these changes are mostly trivial. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-09-11ALSA: hda - Get rid of action field from struct hda_jack_tblTakashi Iwai1-2/+2
The action value assigned to each hda_jack_tbl entry is mostly superfluous. The actually used values are either the widget NID or a value specific to the callback. The former case can be simply replaced by a reference to widget NID itself. The only place doing the latter is STAC/IDT codec driver for the powermap handling. But, the code doesn't need to check the action field at all -- the function jack_update_power() is called either with a specific pin or with NULL. So the check of jack->action can be removed completely there, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-19ALSA: hda/hdmi - apply Valleyview fix-ups to Cherryview display codecLibin Yang1-4/+7
Valleyview and Cherryview have the same behavior on display audio. So this patch defines is_valleyview_plus() to include codecs for both Valleyview and its successor Cherryview, and apply Valleyview fix-ups to Cherryview. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-19ALSA: hda/hdmi - set depop_delay for haswell plusLibin Yang1-2/+1
Both Haswell and Broadwell need set depop_delay to 0. So apply this setting to haswell plus. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-04ALSA: hda - add codec ID for Braswell display audio codecLibin Yang1-0/+2
This patch adds codec ID (0x80862883) and module alias for Braswell display codec. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-07-15Merge branch 'for-linus' into for-nextTakashi Iwai1-0/+2
Since init_failed flag was moved to struct hda_intel, its access in the commit [4da63c6f: ALSA: hda - Fix broken PM due to incomplete i915 initialization] is also replaced with hda->init_failed appropriately.
2014-07-08ALSA: hda - Add new GPU codec ID 0x10de0070 to snd-hdaAaron Plattner1-0/+2
Vendor ID 0x10de0070 is used by a yet-to-be-named GPU chip. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-26Merge branch 'for-linus' into for-nextTakashi Iwai1-1/+1
2014-06-25ALSA: hda - Kill snd_printd*() in HDMI debug / info printsTakashi Iwai1-5/+6
Pass codec instance to each function that still prints info and debug outputs via snd_printd*(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-23ALSA: hda - hdmi: call overridden init on resumePierre Ossman1-1/+1
We need to call the proper init function in case it has been overridden, as it might restore things that the generic routing doesn't know anything about. E.g. AMD cards have special verbs that need resetting. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=77901 Fixes: 5a61358433b1 ('ALSA: hda - hdmi: Add ATI/AMD multi-channel audio support') Signed-off-by: Pierre Ossman <pierre@ossman.eu> Cc: <stable@vger.kernel.org> [v3.13+] Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-12ALSA: hda - verify pin:converter connection on unsol event for HSW and VLVMengdong Lin1-1/+9
This patch will verify the pin's coverter selection for an active stream when an unsol event reports this pin becomes available again after a display mode change or hot-plug event. For Haswell+ and Valleyview: display mode change or hot-plug can change the transcoder:port connection and make all the involved audio pins share the 1st converter. So the stream using 1st convertor will flow to multiple pins but active streams using other converters will fail. This workaround is to assure the pin selects the right conveter and an assigned converter is not shared by other unused pins. Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-27Merge branch 'topic/firewire' into for-nextTakashi Iwai1-0/+2
This is a merge of big firewire audio stack updates by Takashi Sakamoto.
2014-05-20ALSA: hda/hdmi - Add Nvidia Tegra124 HDMI supportSumit Bhattacharya1-0/+2
Add the Tegra12x HDA codec id to patch_hdmi. Signed-off-by: Sumit Bhattacharya <sumitb@nvidia.com> Signed-off-by: Dylan Reid <dgreid@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-13ALSA: hda - Add new GPU codec ID to snd-hdaAaron Plattner1-0/+2
Vendor ID 0x10de0071 is used by a yet-to-be-named GPU chip. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-05ALSA: hda - hdmi: Set infoframe and channel mapping even without sinkAnssi Hannula1-4/+0
Currently infoframe contents and channel mapping are only set when a sink (monitor) is present. However, this does not make much sense, since 1) We can make a very reasonable guess on CA after 18e391862c ("ALSA: hda - hdmi: Fallback to ALSA allocation when selecting CA") or by relying on a previously valid ELD (or we may be using a user-specified channel map). 2) Not setting infoframe contents and channel count simply means they are left at a possibly incorrect state - playback is still allowed to proceed (with missing or wrongly mapped channels). Reasons for monitor_present being 0 include disconnected cable, video driver issues, or codec not being spec-compliant. Note that in actual disconnected-cable case it should not matter if these settings are wrong as they will be re-set after jack detection, though. Change the behavior to allow the infoframe contents and the channel mapping to be set even without a sink/monitor, either based on the previous valid ELD contents, if any, or based on sensible defaults (standard channel layouts or provided custom map, sink type HDMI). Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Tested-by: Stephan Raue <stephan@openelec.tv> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-05ALSA: hda - hdmi: Set converter channel count even without sinkAnssi Hannula1-1/+3
Since commit 1df5a06a ("ALSA: hda - hdmi: Fix programmed active channel count") channel count is no longer being set if monitor_present is 0. This is because setting the count was moved after the CA value is determined, which is only after the monitor_present check in hdmi_setup_audio_infoframe(). Unfortunately, in some cases, such as with a non-spec-compliant codec or with a problematic video driver, monitor_present is always 0. As a specific example, this seems to happen with gen1 ATV (SiI1390 codec), causing left-channel-only stereo playback (multi-channel playback has apparently never worked with this codec despite it reporting 8 channels, reason unknown). Simply setting converter channel count without setting the pin infoframe and channel mapping as well does not theoretically make much sense as this will just mean they are out-of-sync and multichannel playback will have a wrong channel mapping. However, adding back just setting the converter channel count even in no-monitor case is the safest change which at least fixes the stereo playback regression on SiI1390 codec. Do that. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Reported-by: Stephan Raue <stephan@openelec.tv> Tested-by: Stephan Raue <stephan@openelec.tv> Cc: <stable@vger.kernel.org> # 3.12+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-03-20ALSA: hda - verify pin:cvt connection on preparing a stream for Intel HDMI codecMengdong Lin1-0/+32
This is a temporary fix for some Intel HDMI codecs to avoid no sound output for a resuming playback after S3. After S3, the audio driver restores pin:cvt connection selections by snd_hda_codec_resume_cache(). However this can happen before the gfx side is ready and such connect selection is overlooked by HW. After gfx is ready, the pins make the default selection again. And this will cause multiple pins share a same convertor and mute control will affect each other. Thus a resumed audio playback become silent after S3. This patch verifies pin:cvt connection on preparing a stream, to assure the pin selects the right convetor and an assigned convertor is not shared by other unused pins. Apply this fix-up on Haswell, Broadwell and Valleyview (Baytrail). We need this temporary fix before a reliable software communication channel is established between audio and gfx, to sync audio/gfx operations. Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-03-11ALSA: hda - initialize audio InfoFrame to be all zeroMengdong Lin1-0/+1
This patch initialized the local audio InfoFrame variable 'ai' to be all zero, thus the data bytes will indicate "Refer to Stream Header" by default. Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>