ASoC: Last minute fixes for v4.4

A few final fixes for v4.4, the main one being the two patches to the
new Sky Lake drivers which fix a previous incorrect fix that went in
during an earlier -rc.

# gpg: Signature made Wed 06 Jan 2016 17:12:57 GMT using RSA key ID 5D5487D0
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# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
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# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0

A recent rework removed the only user of the hdac_hdmi_query_pin_connlist
function, so we now get a warning when building the hdac_hdmi driver:

hdac_hdmi.c:313:12: warning: 'hdac_hdmi_query_pin_connlist' defined but not used [-Wunused-function]

This removes the function, which makes the file build cleanly again.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 15b91447 ("ASoC: hdac_hdmi: Use list to add pins and converters")
Signed-off-by: Mark Brown <broonie@kernel.org>

This patch adds pcm capability to support Resume.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

On suspend the link register are lost so we need to reconfigure
them in resume. This patch adds the reconfiguration of the link
register in trigger resume.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Use the DMA resume capability to resume the DMA position when
stream is suspended/resumed.

In suspend we save the position and when stream is resumed the stream needs
to be started from the position when the stream was suspended using the new
DMA resume capabilities
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

In active suspend, any HDA interrupt should wake the system. When device
enters active suspend, we need to enable HDA controller interrupt as wake
source. Similarly disable HDA controller interrupt as wake source when
exiting active suspend.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

When device enters active suspend, we should turn off the links
as they are not in use. Similarly we need to bring back links
when we exit active suspend.
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Per HW recommendation, SW shall clear the CGCTL.MISCBDCGE and set
it back once data is transferred. So clear this when we get the
IPC and track using a driver flag, and set back on closure
Signed-off-by: Dharageswari.R <dharageswari.r@intel.com>
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

MISCBDCGE is a new register for Misc Backbone clock gate control
which is useful to control while resetting the link and ensuring
controller is in required state so add API to control it

HW recommends that we reset with CGCTL.MISCBDCGE disabled, so add
that while doing init chip and reset sequence.
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Merge branch 'topic/hdac' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel

We have an API for powering down all links, we need a similar one
for powering up links, so add for power up as well
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

HW recommends 180us for worst case values for link power up
delay, so change the current delay value from 50 (150us) to 150
(450us)
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

A stream is by default in coupled mode, in DSP operation we move
it to decoupled mode. On cleanup HW expects that we leave it back
to default state so couple the DMA on cleanup.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

Skylake sports new capability of DMA resume, DRSM where we can
resume the DMA. This capability is defined by presence of
AZX_DRSM_CAP_ID.

If this capability is present, we use this capability.
So we add:

snd_hdac_ext_stream_drsm_enable() - DMA resume caps
snd_hdac_ext_stream_set_dpibr() - set the DMA position
snd_hdac_ext_stream_set_lpib() - set the lpib
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

The detection of direction for compress was only taking into account codec
capabilities and not CPU ones. Fix this by checking the CPU side capabilities
as well

Cc: <stable@vger.kernel.org>
Tested-by: Ashish Panwar <ashish.panwar@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Future platforms may have a different set of pins/converters.
So use lists to add pins and converters based on enumeration.

Also it may be required to connect any converter to any pin
dynamically as per different use cases (for example DP is
connected to pin 6 on skylake board). So this will help in
dynamically select and route.

Fix the dai map as well to use the pin/cvt from list. Not
enabling all dai maps for now.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

It is possible that some pin widget may return with no converter
connected. So don't throw error if none are found to be connected.
Instead print a warning and continue.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

We don't want to use a bypassed write in wm5110_clear_pga_volume,
we might disable the DRE whilst the CODEC is powered down. A
normal regmap_write will always go to the hardware (when not on
cache_only) even if the written value matches the cache. As using
a normal write will still achieve the desired behaviour of bring
the cache and hardware in sync, this patch updates the function
to use a normal write, which avoids issues when the CODEC is
powered down.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

commit 3c83ac23 ("ASoC: hdac_hdmi: check error return") fixes
the static checker warning reported by Dan Carpenter:

	sound/soc/codecs/hdac_hdmi.c:416 hdac_hdmi_parse_and_map_nid()
	warn: unsigned 'hdac->num_nodes' is never less than zero.

But it doesn't fix the issue completely.

It's also a failure if no sub nodes found for an afg node. So modify
the return condition appropriately.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Merge branch 'fix/intel' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel

The BIOS for the HP ElitePad 1000 G2 uses an unexpected HID,
(INTCCFFD), add it to the white list of knowns HIDs.
Signed-off-by: Jorge Fernandez Monteagudo <jorgefm@cirsa.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

The machine driver is not loaded when the BIOS uses the 10EC5642
_HID. Add it to the white list of known _HIDs, codec_name is
already taken care of by previous commit

Tested on Asus T100TAF.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Codec name is hard-coded in machine driver, pass information
from actual ACPI HID to help support BIOS variations
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

based on bytcr-rt5640 with changes only on codec side
Quirk logic is kept as placeholder.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

The commit 95f09801
"ASoC: Intel: Move apci find machine routines"

introduced a regression in ACPI probe of the DPCM driver.
Fix by conditionally compiling sst-acpi when the DPCM driver
is not selected
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Sound is noisy when using BCLK as reference, enable ASRC in rt5640
codec
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Merge branch 'topic/rt5640' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

This provide the fix for firmware memory by freeing the pointer in driver
remove where it is safe to do so
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

This reverts commit 87b5ed8e ("ASoC: Intel:
Skylake: fix memory leak") as it causes regression on Skylake devices

The SKL drivers can be deferred probe. The topology file based widgets can
have references to topology file so this can't be freed until card is fully
created, so revert this patch for now

[   66.682767] BUG: unable to handle kernel paging request at ffffc900001363fc
[   66.690735] IP: [<ffffffff806c94dd>] strnlen+0xd/0x40
[   66.696509] PGD 16e035067 PUD 16e036067 PMD 16e038067 PTE 0
[   66.702925] Oops: 0000 [#1] PREEMPT SMP
[   66.768390] CPU: 3 PID: 57 Comm: kworker/u16:3 Tainted: G O 4.4.0-rc7-skl #62
[   66.778869] Hardware name: Intel Corporation Skylake Client platform
[   66.793201] Workqueue: deferwq deferred_probe_work_func
[   66.799173] task: ffff88008b700f40 ti: ffff88008b704000 task.ti: ffff88008b704000
[   66.807692] RIP: 0010:[<ffffffff806c94dd>]  [<ffffffff806c94dd>] strnlen+0xd/0x40
[   66.816243] RSP: 0018:ffff88008b707878  EFLAGS: 00010286
[   66.822293] RAX: ffffffff80e60a82 RBX: 000000000000000e RCX: fffffffffffffffe
[   66.830406] RDX: ffffc900001363fc RSI: ffffffffffffffff RDI: ffffc900001363fc
[   66.838520] RBP: ffff88008b707878 R08: 000000000000ffff R09: 000000000000ffff
[   66.846649] R10: 0000000000000001 R11: ffffffffa01c6368 R12: ffffc900001363fc
[   66.854765] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000
[   66.862910] FS:  0000000000000000(0000) GS:ffff88016ecc0000(0000) knlGS:0000000000000000
[   66.872150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.878696] CR2: ffffc900001363fc CR3: 0000000002c09000 CR4: 00000000003406e0
[   66.886820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.894938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.903052] Stack:
[   66.905346]  ffff88008b7078b0 ffffffff806cb1db 000000000000000e 0000000000000000
[   66.913854]  ffff88008b707928 ffffffffa00d1050 ffffffffa00d104e ffff88008b707918
[   66.922353]  ffffffff806ccbd6 ffff88008b707948 0000000000000046 ffff88008b707940
[   66.930855] Call Trace:
[   66.933646]  [<ffffffff806cb1db>] string.isra.4+0x3b/0xd0
[   66.939793]  [<ffffffff806ccbd6>] vsnprintf+0x116/0x540
[   66.945742]  [<ffffffff806d02f0>] kvasprintf+0x40/0x80
[   66.951591]  [<ffffffff806d0370>] kasprintf+0x40/0x50
[   66.957359]  [<ffffffffa00c085f>] dapm_create_or_share_kcontrol+0x1cf/0x300 [snd_soc_core]
[   66.966771]  [<ffffffff8057dd1e>] ? __kmalloc+0x16e/0x2a0
[   66.972931]  [<ffffffffa00c0dab>] snd_soc_dapm_new_widgets+0x41b/0x4b0 [snd_soc_core]
[   66.981857]  [<ffffffffa00be8c0>] ? snd_soc_dapm_add_routes+0xb0/0xd0 [snd_soc_core]
[   67.007828]  [<ffffffffa00b92ed>] soc_probe_component+0x23d/0x360 [snd_soc_core]
[   67.016244]  [<ffffffff80b14e69>] ? mutex_unlock+0x9/0x10
[   67.022405]  [<ffffffffa00ba02f>] snd_soc_instantiate_card+0x47f/0xd10 [snd_soc_core]
[   67.031329]  [<ffffffff8049eeb2>] ? debug_mutex_init+0x32/0x40
[   67.037973]  [<ffffffffa00baa92>] snd_soc_register_card+0x1d2/0x2b0 [snd_soc_core]
[   67.046619]  [<ffffffffa00c8b54>] devm_snd_soc_register_card+0x44/0x80 [snd_soc_core]
[   67.055539]  [<ffffffffa01c303b>] skylake_audio_probe+0x1b/0x20 [snd_soc_skl_rt286]
[   67.064292]  [<ffffffff808aa887>] platform_drv_probe+0x37/0x90
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Use dev_to_hdac_dev() and to_ehdac_device() instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Pull MIPS build fix from Ralf Baechle:
 "Fix a makefile issue resulting in build breakage with older binutils.

  This has sat in -next for a few days, testers and buildbot are happy
  with it, too though if you are going for another -rc that'd certainly
  help ironing out a few more issues"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: VDSO: Fix build error with binutils 2.24 and earlier