One of the debugging/logging features for an IPC4 based firmware is the use
of the debug window to deliver log messages to host via the shared SRAM.

The initial implementation of the mtrace supports only TGL/MTL style of
logging, but can be extended to support other types, like APL, SKL, CNL,
etc.

The window is split into 16 'slots' where the first slot contains the
descriptors for the remaining 15 slots.

Each DSP core logs to a separate slot and the slot allocation is not fixed,
we can not assume that the first slot is always used by core0 for example.

The firmware sends LOG_BUFFER_STATUS message when new log batch is
available from one of the cores (after it updated the write_ptr in the
given slot).
Host should update the read_ptr in the same slot when it has taken out log
data.

The patch also updates the sof_ipc4_fw_data struct with parameters needed
for the mtrace to be enabled and used safely.
Co-developed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Co-developed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220909114332.31393-6-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

The debug window for IPC4 compatible firmware is always window #2,
set the debug_box.offset accordingly.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220909114332.31393-5-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Instead of using the index number directly, add a define for the outbox
window index.
It is always window 1 with IPC4.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220909114332.31393-4-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

The LOG_BUFFER_STATUS message includes the ID of the core which updated
its log buffer.
With IPC4 each core logs to a different slot in the debug window.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220909114332.31393-3-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Do not print messages when the SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS flag
is not set to reduce the amount of prints when the tracing is used.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220909114332.31393-2-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

These are remains of my previous cleanup patch-set.

Most function in ak4458_probe() and ak4458_remove() are
duplicate with dai ops, so remove them and move dsd_path
setting to dai ops.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/1662622316-23426-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

Return the value regmap_write() and sti_sas_init_sas_registers() directly
instead of storing it in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220908010304.342760-1-ye.xingchen@zte.com.cnSigned-off-by: Mark Brown <broonie@kernel.org>

 The Amp is already control in userspace before trigger calibrate function.
Remove unnecessary control in calibrate function and
add condition to check calibration is ready.
Signed-off-by: Steve Lee <steve.lee.analog@gmail.com>
Link: https://lore.kernel.org/r/20220908060359.13606-1-steve.lee.analog@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

snd_soc_dai_link_event_pre_pmu() is using if/else for config->formats
check, but "else" case is for just error.
Unnecessary if/else is not good for readable code. this patch checks
if config->formats was zero as error case.

Moreover, we don't need to indicate config->formats value in error message,
because it is zero. This patch tidyup it, too.

=>	if (config->formats) {
		...
	} else {
		dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n",
=>			 config->formats);
		...
	}

Link: https://lore.kernel.org/all/YxiDkDOwRsbXeZ17@sirena.org.uk/Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/877d2ebn3t.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

snd_soc_dai_link_event_pre_pmu() is using kzalloc()/kfree() for params.
It looks we don't need to use these, but are necessary.
But, it is difficult to know why it is necessary without any comments.
This patch adds the reasons via comment.

Link: https://lore.kernel.org/all/Yxc2wzbZsSVZNf8Y@sirena.org.uk/Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/878rmubn47.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series from AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>:

This series fixes Sound Open Firmware support for MT8195 by making
sure that the sound card driver is actually able to probe and IPC
can finally happen.
It is now possible to get DSP support for audio.

Tested on MT8195 Tomato - Acer Chromebook Spin 513 CP513-2H (Pipewire).

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

These are cleanup patches for soc-dapm.c.
Each patches are not related, very random cleanup.

Current snd_soc_dapm_new_control_unlocked() error handling is wrong.
It is using "goto request_failed" (A), but error message is using
"w->name" (B) which is not yet created in such timing.

	snd_soc_dapm_new_control_unlocked(xxx)
	{
		...
		switch (w->id) {
		case xxx:
			...
			if (IS_ERR(...)) {
				ret = PTR_ERR(...);
(A)				goto request_failed;
			}
		...
		}

		prefix = soc_dapm_prefix(...);
		if (prefix)
(B)			w->name = kasprintf(...);
		else
(B)			w->name = kstrdup_const(...);
		...

(A)	request_failed:
		if (ret != -EPROBE_DEFER)
(B)			dev_err(..., w->name, ...);

		return ...;
	}

we can create "w->name" at beginning of this function.
In such case, we need to call kfree_const(w->name) at error case.
This patch do these.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87wnah8l7e.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

Current snd_soc_dai_link_event_pre_pmu() is checking "config".
It is using dev_err() (A) if it was NULL, so we don't need to use
WARN_ON() (B) to check it, it is over-kill. This patch removes it.

(B)	if (WARN_ON(!config)) {
(A)		dev_err(...);
		...
	}
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zgfd8l7s.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

qcom,q6core is already described in soc/qcom/qcom,apr.yaml.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220906121110.301900-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

This patch switches the driver away from legacy gpio/of_gpio API to
gpiod API, and removes use of of_get_named_gpio_flags() which I want to
make private to gpiolib.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/YxeaITtlJexygQo9@google.comSigned-off-by: Mark Brown <broonie@kernel.org>

Support devicetree by adding a snd_soc_of_mach array, specifying SOF
topologies for a generic MT8195 machine and for Google Tomato
Chromebooks.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-6-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Use the generic sof_stream_pcm_{open,close}() functions for the
pcm_{open,close} callbacks.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-5-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add the .mailbox_{read,write} generic callbacks for SOF IPC and, while
at it, also change the ipc_msg_data callback to use the SOF API
sof_ipc_msg_data() instead of the custom function mt8195_ipc_msg_data().
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-4-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Here we're using function mtk_adsp_dump() from mtk-adsp-common:
explicitly import its namespace.

Fixes: 3a054f90 ("ASoC: SOF: mediatek: Add mt8195 debug dump")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-3-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Adding a probe callback on this snd_soc_card is required when
Sound Open Firmware support is desired, as we need to appropriately
populate the stream_name for SOF to be able to bind widgets.
Failing to do so will produce errors when applying the SOF topology
leading to card registration failure (so, no sound).
While at it, also make sure to fill the topology_shortname as required.

Fixes: 0caf1120 ("ASoC: mediatek: mt8195: extract SOF common code")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-2-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:

Continuation of recent upstream discussion [1] regarding user string
tokenization.

First, parse_int_array_user() is introduced to allow for splitting
specified user string into a sequence of integers. Makes use of
get_options() internally so the parsing logic is not duplicated.

With that done, redundant parts of the sound driver are removed.

Originally similar functionality was added for the SOF sound driver. As
more users are on the horizon, it is desirable to update existing
string_helpers code and provide a unified solution.

Merge series from Martin Povišer <povik+lin@cutebit.org>:

The tas2562 driver does the same thing with the setting of PWR_CTRL
field as the tas2764/tas2770 drivers were doing.
Link: https://lore.kernel.org/alsa-devel/20220808141246.5749-1-povik+lin@cutebit.org/T/#t
Link: https://lore.kernel.org/alsa-devel/20220825140241.53963-1-povik+lin@cutebit.org/T/#t

These are blindly written patches without testing since I don't have
the hardware. (I even tried TI's formal sample request program but
was refused there. CCing @ti.com addresses I found on other series
recently submitted.)

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

These are not related, but random cleanup patches for soc-pcm.c

Make use of global integer-array parsing helper instead of the internal
one as both serve same purpose. With that, both strsplit_u32() and
tokenize_input() become unused so remove them.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220904102840.862395-3-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add new helper function to allow for splitting specified user string
into a sequence of integers. Internally it makes use of get_options() so
the returned sequence contains the integers extracted plus an additional
element that begins the sequence and specifies the integers count.
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220904102840.862395-2-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Move the requesting of DMA channels further down from 'probe' to
'pcm_new'. This is to spare the allocated DMA channel resources as we
typically only ever use one or two of the clusters for PCM streaming.
Before we would request DMA channels for all clusters.

(This is prompted by a change in the Audio DMA Controller driver, which
will now be allocating cache SRAM to channels.)
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220905074030.1293-1-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>

From current design in sof_machine_check the SOF can only support
ACPI type machine.

In sof_machine_check if there is no ACPI machine exist, the function
will return -ENODEV directly, that's we don't expected if we do not
base on ACPI machine.

So we add a new function named sof_of_machine_select that we can pass
sof_machine_check and obtain info required by snd_sof_new_platform_drv.
Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220903032151.13664-1-chunxu.li@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

The tracing capabilities for the speaker protection fw enabled via
commit c55b3e46 ("ASoC: wm_adsp: Add trace caps to speaker
protection FW") are not be available on all platforms, such as the
Valve's Steam Deck which is based on the Halo Core DSP.

As a consequence, whenever the firmware is loaded, a rather misleading
'Failed to parse legacy: -19' error message is written to the kernel
ring buffer:

[  288.977412] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: Firmware version: 3
[  288.978002] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: cs35l41-dsp1-spk-prot.wmfw: Fri 02 Apr 2021 21:03:50 W. Europe Daylight Time
[  289.094065] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: Firmware: 400a4 vendor: 0x2 v0.33.0, 2 algorithms
[  289.095073] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: 0: ID cd v29.53.0 XM@94 YM@e
[  289.095665] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: 1: ID f20b v0.0.1 XM@170 YM@0
[  289.096275] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: Protection: C:\Users\ocanavan\Desktop\cirrusTune_july2021.bin
[  291.172383] steamdeck kernel: cs35l41 spi-VLV1776:01: DSP1: Failed to parse legacy: -19

Update wm_adsp_buffer_init() to print a more descriptive info message
when wm_adsp_buffer_parse_legacy() returns -ENODEV.

Fixes: c55b3e46 ("ASoC: wm_adsp: Add trace caps to speaker protection FW")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220825220530.1205141-1-cristian.ciocaltea@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

Because the PWR_CTRL field is modeled as the power state of the DAC
widget, and at the same time it is used to implement mute/unmute, we
need some additional book-keeping to have the right end result no matter
the sequence of calls. Without this fix, one permanently mutes an
ongoing stream by toggling the associated speaker pin control.

(This mirrors commit 1e5907bc ("ASoC: tas2770: Fix handling of
mute/unmute") which was a fix to the tas2770 driver.)
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220825142226.80929-3-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>

The driver is setting the PWR_CTRL field in both the set_bias_level
callback and on DAPM events of the DAC widget (and also in the
mute_stream method). Drop the set_bias_level callback altogether as the
power setting it does is in conflict with the other code paths.

(This mirrors commit c8a6ae3fe1c8 ("ASoC: tas2770: Drop conflicting
set_bias_level power setting") which was a fix to the tas2770 driver.)
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220825142226.80929-2-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Current dpcm_add_paths() is checking fe condition in loop (= A),
but fe condition (X) is not related to the loop (B).

(X)	static int dpcm_add_paths(fe, stream, ...)
	{
		...
(B)		for_each_dapm_widgets(list, i, widget) {
			...
(A)			if (!fe->dpcm[stream].runtime && !fe->fe_compr)
				continue;
			...
		}
		...
	}

This patch checks fe condition at out of loop
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pmgi4dz4.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

Current soc-pcm.c has many similar code for error case.
This patch adds soc_pcm_ret() and share the code and error message.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r10y4dzb.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

commit 4bf2e385 ("ASoC: core: Init pcm runtime work early to
avoid warnings") has added generic close_delayed_work() which checks
close_delayed_work_func

	static void close_delayed_work(...) {
		...
=>		if (rtd->close_delayed_work_func)
			rtd->close_delayed_work_func(rtd);
	}

So, we don't need to have NULL function for Codec2Codec.

=>	static void codec2codec_close_delayed_work()
	{
		/*
		 * Currently nothing to do for c2c links
		 * Since c2c links are internal nodes in the DAPM graph and
		 * don't interface with the outside world or application layer
		 * we don't have to do any special handling on close.
		 */
	}

	int soc_new_pcm(...)
	{
		...
		if (rtd->dai_link->params)
=>			rtd->close_delayed_work_func = codec2codec_close_delayed_work;
		else
			rtd->close_delayed_work_func = snd_soc_close_delayed_work;
		...
	}
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sfle4dzk.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

As rsnd_mod_power_on() can return negative numbers,
it should be better to check the return value and
deal with the exception.

Fixes: e7d850dd ("ASoC: rsnd: use mod base common method on SSI-parent")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20220902013030.3691266-1-jiasheng@iscas.ac.cnSigned-off-by: Mark Brown <broonie@kernel.org>

This is what was meant of course.

Fixes: 3df5d0d9 ("ASoC: apple: mca: Start new platform driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220901113415.27449-2-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>

The MCA driver selects COMMON_CLK, which leads to misconfiguration
on platforms with HAVE_LEGACY_CLK (under compile test). Kconfig catches
the conflict with the following warning:

  WARNING: unmet direct dependencies detected for COMMON_CLK
  Depends on [n]: !HAVE_LEGACY_CLK [=y]
  Selected by [m]:
  - SND_SOC_APPLE_MCA [=m] && SOUND [=m] && !UML && SND [=m] &&
    SND_SOC [=m] && (ARCH_APPLE || COMPILE_TEST [=y])

Eventually the build fails with errors like:

>> drivers/clk/clk.c:867:6: error: redefinition of 'clk_unprepare'
     867 | void clk_unprepare(struct clk *clk)
         |      ^~~~~~~~~~~~~
   In file included from drivers/clk/clk.c:9:
   include/linux/clk.h:303:20: note: previous definition of 'clk_unprepare' with type 'void(struct clk *)'
     303 | static inline void clk_unprepare(struct clk *clk)
         |                    ^~~~~~~~~~~~~

which appears to be because COMMON_CLK is selected but HAVE_CLK_PREPARE
is not. In the end it seems we had no business selecting COMMON_CLK from
an unrelated driver like that, so remove the selection. The linux/clk.h
API is there anyway.

Fixes: 3df5d0d9 ("ASoC: apple: mca: Start new platform driver")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220901113415.27449-1-povik+lin@cutebit.orgSigned-off-by: Mark Brown <broonie@kernel.org>

The RK817 codec uses regmap API and not directly regmap I2C.  It is the
parent MFD who uses and selects regmap I2C.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220901101458.365354-2-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

The WCD934X codec is a Slimbus driver, so it must depend on SLIMBUS,
also for compile tests:

  ERROR: modpost: "slim_stream_prepare" [sound/soc/codecs/snd-soc-wcd934x.ko] undefined!
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 5b7f4e5d ("ASoC: codecs: allow compile testing without MFD drivers")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220901101458.365354-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>