Modification for calibration to get better performance.
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20201109062958.16917-1-jack.yu@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series "ASoC: dt-bindings: audio-graph-card: switch to yaml base Documentation" from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

Hi Rob, Mark
Cc: Sameer

These are v6 of switch to yaml base Documentation for
audio-graph-card and renesas,rsnd which uses audio-graph-card.

v5 -> v6
	- add Acked-by/Reviewed-by on each patch
	- remove "audio-graph-card,xxx" property
	- remove un-needed if "ok"

v4 -> v5
	- move "endpoint" under "port"

v3 -> v4
	- fixuped yamllint warnings/errors

v2 -> v3
	- fixuped Rob's pointed points

v1 -> v2
	- upgrade dt-schema, and fixup errors for [2/2] patch

Kuninori Morimoto (3):
  dt-bindings: ASoC: audio-graph-card: switch to yaml base Documentation
  dt-bindings: ASoC: renesas,rsnd: switch to yaml base Documentation
  dt-bindings: ASoC: renesas,rsnd: Add r8a77961 support

 .../bindings/sound/audio-graph-card.txt       | 337 ------------
 .../bindings/sound/audio-graph-card.yaml      | 153 ++++++
 .../bindings/sound/renesas,rsnd.txt           | 520 ------------------
 .../bindings/sound/renesas,rsnd.yaml          | 451 +++++++++++++++
 4 files changed, 604 insertions(+), 857 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card.txt
 create mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/renesas,rsnd.yaml

--
2.25.1

Document R-Car M3-W+ (R8A77961) SoC bindings.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87a6vwbavq.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch switches from .txt base to .yaml base Document.
It is still keeping detail explanations at .txt
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87blgcbaw4.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch switches from .txt base to .yaml base Document.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87d00sbawh.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

The AUD2HTX is a digital module that provides a bridge between
the Audio Subsystem and the HDMI RTX Subsystem. This module
includes intermediate storage to queue SDMA transactions prior
to being synchronized and passed to the HDMI RTX Subsystem over
the Audio Link.

The AUD2HTX contains a DMA request routed to the SDMA module.
This DMA request is controlled based on the watermark level in
the 32-entry sample buffer.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1604281947-26874-2-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

AUD2HTX (Audio Subsystem TO HDMI TX Subsystem) is a new
IP module found on i.MX8MP.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1604281947-26874-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

ecause clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201029090104.29552-1-vulab@iscas.ac.cnSigned-off-by: Mark Brown <broonie@kernel.org>

Because clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201029084137.28771-1-vulab@iscas.ac.cnSigned-off-by: Mark Brown <broonie@kernel.org>

This patch fixes below warning when module is compiled with W=1 C=1

sound/soc/qcom/qdsp6/q6afe-clocks.c:122:18: warning: symbol 'q6afe_clks'
was not declared. Should it be static?

Fixes: 520a1c39 ("ASoC: q6afe-clocks: add q6afe clock controller")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201105114435.22860-1-srinivas.kandagatla@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

soc-pcm's dpcm_fe_dai_do_trigger() supported DRAIN commnad up to kernel
v5.4 where explicit switch(cmd) has been introduced which takes into
account all SNDRV_PCM_TRIGGER_xxx but SNDRV_PCM_TRIGGER_DRAIN. Update
switch statement to reactive support for it.

As DRAIN is somewhat unique by lacking negative/stop counterpart, bring
behaviour of dpcm_fe_dai_do_trigger() for said command back to its
pre-v5.4 state by adding it to START/RESUME/PAUSE_RELEASE group.

Fixes: acbf2774 ("ASoC: pcm: update FE/BE trigger order based on the command")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20201026100129.8216-1-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Fix the following sparse warnings:

./mt8192-dai-i2s.c:2040:5: warning: symbol 'mt8192_dai_i2s_get_share' was not declared. Should it be static?
./mt8192-dai-i2s.c:2060:5: warning: symbol 'mt8192_dai_i2s_set_priv' was not declared. Should it be static?
./mt8192-afe-gpio.c:15:16: warning: symbol 'aud_pinctrl' was not declared. Should it be static?
./mt8192-afe-pcm.c:70:5: warning: symbol 'mt8192_get_memif_pbuf_size' was not declared. Should it be static?
./mt8192-afe-pcm.c:2137:39: warning: symbol 'mt8192_afe_component' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Acked-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604579287-25251-1-git-send-email-zou_wei@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

A build of arm64 allmodconfig with next-20201105 fails with the error:
ERROR: modpost: "mt8192_afe_gpio_request" undefined!
ERROR: modpost: "mt8192_afe_gpio_init" undefined!

Export the symbols so that mt8192-mt6359-rt1015-rt5682.ko finds it.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20201105124747.18383-1-sudipm.mukherjee@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch fixes below warning when module is compiled with W=1 C=1

lpass-cpu.c:677:22: warning: symbol 'lpass_hdmi_regmap_config'
was not declared. Should it be static?

Fixes: 7cb37b7b ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201105114100.18647-1-srinivas.kandagatla@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series "ASoC: topology: Change to resource managed memory" from Amadeusz Sławiński<amadeuszx.slawinski@linux.intel.com>:

Almost all other allocations in ASoC API are resource managed, the only
exception is soc-topology.c.

This patchset clean ups few unnecessary functions in preparation for
change and then changes to devm_ functions for allocation.

Amadeusz Sławiński (6):
  ASoC: topology: Remove unused functions from topology API
  ASoC: topology: Remove multistep topology loading
  ASoC: topology: Unify all device references
  ASoC: topology: Change allocations to resource managed
  ASoC: topology: Remove empty functions
  ASoC: topology: Simplify remove_widget function

 include/sound/soc-topology.h           |  13 +-
 sound/soc/intel/skylake/skl-topology.c |   9 +-
 sound/soc/soc-topology.c               | 302 +++++--------------------
 sound/soc/sof/pcm.c                    |   2 +-
 sound/soc/sof/topology.c               |   4 +-
 5 files changed, 57 insertions(+), 273 deletions(-)

--
2.25.1

This series of patches adds support for Mediatek AFE for MT8192 SoC. At the same
time, the calibration function of MT6359 is completed with real machine driver.
The patch is based on broonie tree "for-next" branch.

Change since v3:
  - use normal conditional statements to improve legiblity in [v3,3/9]
  - remove mtk_i2s_hd_en_event as there's trace in the core
  - impove mt8192_i2s_enum and mt8192_adda_enum

Change since v2:
  - split the dai driver files as a separate patch
  - fix dt-bindings to GPL-2.0-only License
  - remove unnecessary preperty descriptions such as 'maxItems'

Change since v1:
  - fixed some typos related to dt-bindings in [v1,3/5] and [v1,5/5]
  - add vendor prefix to the properties, such as "mediatek,apmixedsys"
  - add a dependency description to indicate the required header files

Jiaxin Yu (9):
  ASoC: mediatek: mt6359: add the calibration functions
  ASoC: mediatek: mt8192: add platform driver
  ASoC: mediatek: mt8192: support i2s in platform driver
  ASoC: mediatek: mt8192: support adda in platform driver
  ASoC: mediatek: mt8192: support pcm in platform driver
  ASoC: mediatek: mt8192: support tdm in platform driver
  dt-bindings: mediatek: mt8192: add audio afe document
  ASoC: mediatek: mt8192: add machine driver with mt6359, rt1015 and
    rt5682
  dt-bindings: mediatek: mt8192: add mt8192-mt6358-rt1015-rt5682
    document

 .../bindings/sound/mt8192-afe-pcm.yaml        |  100 +
 .../sound/mt8192-mt6359-rt1015-rt5682.yaml    |   42 +
 sound/soc/codecs/mt6359.c                     |  110 +
 sound/soc/codecs/mt6359.h                     |    7 +
 sound/soc/mediatek/Kconfig                    |   23 +
 sound/soc/mediatek/Makefile                   |    1 +
 sound/soc/mediatek/common/mtk-afe-fe-dai.c    |   13 +-
 sound/soc/mediatek/common/mtk-base-afe.h      |    1 +
 sound/soc/mediatek/mt8192/Makefile            |   16 +
 sound/soc/mediatek/mt8192/mt8192-afe-clk.c    |  669 ++++
 sound/soc/mediatek/mt8192/mt8192-afe-clk.h    |  244 ++
 sound/soc/mediatek/mt8192/mt8192-afe-common.h |  170 +
 .../soc/mediatek/mt8192/mt8192-afe-control.c  |  163 +
 sound/soc/mediatek/mt8192/mt8192-afe-gpio.c   |  306 ++
 sound/soc/mediatek/mt8192/mt8192-afe-gpio.h   |   19 +
 sound/soc/mediatek/mt8192/mt8192-afe-pcm.c    | 2389 +++++++++++++
 sound/soc/mediatek/mt8192/mt8192-dai-adda.c   | 1471 ++++++++
 sound/soc/mediatek/mt8192/mt8192-dai-i2s.c    | 2110 +++++++++++
 sound/soc/mediatek/mt8192/mt8192-dai-pcm.c    |  409 +++
 sound/soc/mediatek/mt8192/mt8192-dai-tdm.c    |  778 ++++
 .../mediatek/mt8192/mt8192-interconnection.h  |   65 +
 .../mt8192/mt8192-mt6359-rt1015-rt5682.c      | 1058 ++++++
 sound/soc/mediatek/mt8192/mt8192-reg.h        | 3131 +++++++++++++++++
 23 files changed, 13291 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
 create mode 100644 sound/soc/mediatek/mt8192/Makefile
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-clk.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-clk.h
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-common.h
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-control.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-gpio.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-gpio.h
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-dai-adda.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-dai-i2s.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-dai-pcm.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-dai-tdm.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-interconnection.h
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c
 create mode 100644 sound/soc/mediatek/mt8192/mt8192-reg.h

--
2.18.0

Add TDM slot callback function to support TDM configuration
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201104092005.2227-1-shumingf@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds document for the machine board with mt6358, rt1015
and rt5682.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-10-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds support for the machine board with mt6359, rt1015
and rt5682.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-9-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 audio afe document.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-8-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 tdm dai driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-7-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 pcm dai driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-6-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 adda dai driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-5-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 i2s dai driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-4-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

This patch adds mt8192 platform and affiliated drivers.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-3-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add the calibraion functions for initializing the codec when registering
the machine driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1604390378-23993-2-git-send-email-jiaxin.yu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

Now that enum and mixer kcontrols are freed by resource management
framework, removing kcontrol becomes one function call, so simplify code
in remove_widget.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-7-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

After changing memory management to resource managed one, some of the
functions became no ops, remove them as they are no longer needed.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-6-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

In order for topology to be resource managed, change all allocations to
be resource managed:
k*alloc -> devm_k*alloc
kstrdup -> devm_kstrdup

Exceptions where non resource managed allocation is left is
soc_tplg_dapm_widget_create(), as it uses pointer to memory locally and
frees it up after use, as well as soc_tplg_dapm_graph_elems_load(),
which has temporary pointer to table of routes.

After conversion all redundant calls in error and clean up paths were
removed.

Also removed some variables which become unneeded when there is no calls
using them.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-5-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

In few places tplg->comp->dev is used, while everywhere else tplg->dev
is being used. Unify those uses towards tplg->dev, as it is being set to
comp->dev during initialization anyway.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-4-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

In theory topology can be loaded in multiple steps by providing index to
snd_soc_tplg_component_load, however, from usability point of view it
doesn't make sense, as can be seen from all current users loading
topology in one go. Remove the unnecessary parameter.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-3-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Topology API exposes snd_soc_tplg_widget_remove and
snd_soc_tplg_widget_remove_all, but both are nowhere used. All current
users load and unload topology as a whole. As following commits
introduce resource managed memory, remove them to simplify code and
reduce maintenance burden.
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-2-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

A semicolon is not needed after a switch statement.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201101160312.2296146-1-trix@redhat.comSigned-off-by: Mark Brown <broonie@kernel.org>

This code is correct, but it should be indented one more tab.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20201103101853.GD1127762@mwandaSigned-off-by: Mark Brown <broonie@kernel.org>

A semicolon is not needed after a switch statement.
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20201101172412.2306144-1-trix@redhat.comSigned-off-by: Mark Brown <broonie@kernel.org>

davinci_mcasp_get_dt_params alway return zero, and its return value
could be ignored by the caller. So make it 'void' type to avoid the
check its return value.

Fixes: 764958f2 ("ASoC: ti: davinci-mcasp: Support for auxclk-fs-ratio")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20201102103428.32678-1-zhangqilong3@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

A semicolon is not needed after a switch statement.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201101171742.2304458-1-trix@redhat.comSigned-off-by: Mark Brown <broonie@kernel.org>

Besides the fact that muxclk is optional, muxclk can be set using
assigned-clocks, removing the need to set it in driver. The warning is
thus unneeded, so we can transform it in a debug print, eventually to just
reflect that muxclk was not set by the driver.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20201103100554.1307190-1-codrin.ciubotariu@microchip.comSigned-off-by: Mark Brown <broonie@kernel.org>

A semicolon is not needed after a switch statement.
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201101171943.2305030-1-trix@redhat.comSigned-off-by: Mark Brown <broonie@kernel.org>

Because clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20201029082513.28233-1-vulab@iscas.ac.cnSigned-off-by: Mark Brown <broonie@kernel.org>