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506,942 commits

Author SHA1 Message Date
Nicolin Chen
413312aa17 ASoC: fsl_sai: Improve fsl_sai_isr()
This patch improves fsl_sai_isr() in these ways:
1, Add comment for mask fetching code.
2, Return IRQ_NONE if the IRQ is not for the device.
3, Use regmap_write() instead of regmap_update_bits().

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:26:05 +01:00
Alexander Shiyan
204dec93ea ASoC: fsl: Allow to select individual common options
This patch allow to select individual common sound options and
as a result allow using sound cards/codecs based on DT description.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:25:04 +01:00
Alexander Shiyan
eba9e06f0c ASoC: fsl: Separation of the main audio options and boards
This patch provide separation of the main audio options and boards.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:25:04 +01:00
Peter Ujfalusi
3c25f916d3 ASoC: davinci-mcasp: Remove excess empty lines from davinci_mcasp_set_dai_fmt()
To make the code look uniform.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
423761e0ca ASoC: davinci-mcasp: Support for LEFT_J format
Configuration for LEFT_J format.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
ffd950f75d ASoC: davinci-mcasp: Add support for I2S format
The FS needs to be inverted in McASP compared to other supported formats.
Use a flag to indicate if the FS needs to be inverted.
At the same time fail when non supported format is asked since the default
case was anyways configuring McASP to a not valid format.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
83f12503bd ASoC: davinci-mcasp: Move the FS polarity change out from the switch case
FS polarity can be either rising or falling edge in McASP. Instead of
accessing the registers in every switch/case set a flag and write the
registers after the switch for the invert configuration.
This change will help when adding support for more formats also.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
188edc59c2 ASoC: davinci-mcasp: Support for DSP_A format
DSP_A is like DSP_B mode but with one bit delay after the FS.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
6dfa9a4e6a ASoC: davinci-mcasp: Format data delay configuration enhancement
Use intermediate variable for the data delay needed for the specific format
and write the register after the format configuration at once.
This will help to control the number of lines as support for more formats
going to be added.
Also fixes a case when we switch between two formats with different delay
requirements.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi
33445643c3 ASoC: davinci-mcasp: Fine tune and correct the DMA burst configuration
When the AFIFO is not enabled but more than one serializers are used the DMA
need to transfer number of words equal to active serializers when a DMA
request is generated.
When configuring the burst for the DMA avoid using value '1' for the burst
since it is going to enable additional logic in the DMA drivers. Burst '1'
means that the DMA should send/receive one word per DMA requests.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi
dd093a0f19 ASoC: davinic-mcasp: Adopt the AFIFO/DMA configuration to the stream (dynamic depth)
Configure the AFIFO numevt parameter based on the requested tx/rx_numevt,
active serializers and period size in words.
In this way McASP can adopt it's (and the DMA) configuration runtime and
can pick the most optimal setup which satisfy the parameters.
This way we do not need to place any constraint on the stream itself,
allowing application greater freedom on how they want to set up ALSA.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi
5f04c603a5 ASoC: davinci-mcasp: Configure the AFIFO and DMA burst size at the same place
Move the dma_params->fifo_level and dma_data->maxburst configuration to the
mcasp_common_hw_param() function where we configure the AFIFO registers.
It makes the code regarding to AFIFO and DMA configuration more easy to
follow since it is now clear how the AFIFO and how the DMA is going to be
configured.
Previously this has been done in two functions using a bit different
calculation form - which ended up with the same result in both case at the
end, but it was confusing.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi
0bf0e8aece ASoC: davinci-mcasp: Simplify and clean up the AFIFO configuration code
We can have more linear code flow by using variables in
mcasp_common_hw_param() related to the AFIFO configuration.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi
f5b02b4a2c ASoC: davinci-mcasp: Fix debug typo in davinci_mcasp_hw_params()
requred -> required

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi
d5902f6936 ASoC: davinci-mcasp: Assign the dma_data earlier in dai_probe callback
Set up the playback_dma_data/capture_dma_data for the dai at probe
time since the generic dmaengine PCM stack needs to have access to
this information early.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:10 +01:00
Peter Ujfalusi
1a95d8d09e ASoC: davinci-pcm: Add empty functions for !CONFIG_SND_DAVINCI_SOC builds
To save drivers using davinci-pcm and edma-pcm the need to fiddle with
!CONFIG_SND_DAVINCI_SOC in their code.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:10 +01:00
Bard Liao
1a39019e93 ASoC: core: Allow snd_soc_update_bits use 32 bits register
Change reg's type from unsigned short to unsigned int. So that we can use
32 bits reg value in snd_soc_update_bits.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:39 +01:00
Nariman Poushin
b318ad5036 ASoC: core: Fail codec probe if we fail to add controls
Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:38 +01:00
Nariman Poushin
261edc7013 ASoC: core: Fail probe if we fail to add dai widgets
Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:38 +01:00
Lars-Peter Clausen
b37f1d123c ASoC: Let snd_soc_platform subclass snd_soc_component
There is an increasing amount of code that is very similar between platforms,
CODECS and other components. Making platforms a component will allow us to
share this code. For now the patch just adds component and component_driver
fields to the platform and platform_driver structs and registers the platform as
a component. Followup patches will be used to consolidate code between the
different types of components.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:44 +01:00
Lars-Peter Clausen
98e639fb8a ASoC: Track which components have been registered with snd_soc_register_component()
snd_soc_unregister_component() takes the parent device of the component as a
parameter and then looks up the component based on this. This is a problem if
multiple components are registered for the same parent device. Currently drivers
do not do this, but some drivers register a CPU DAI component and a platform for
the same parent device. This will become a problem once platforms are also made
components. To make sure that snd_soc_unregister_component() will not
accidentally unregister the platform in such a case only consider components
that were registered with snd_soc_register_component(). This is only meant as
short term stopgap solution to be able to continue componentisation. Long term
we'll need something different.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen
20a0ec27ea ASoC: Remove IO register modifier callbacks
There are no ASoC drivers left that use them and new drivers are supposed to use
regmap for this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen
96241c8329 ASoC: Move IO functions to soc-io.c
soc-core.c is getting quite crowded. Move all IO related functions that are
still in soc-core.c to soc-io.c

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen
6137a5ca32 ASoC: Prepare SOC_SINGLE_XR_SX controls for regmap
SOC_SINGLE_XR_SX controls currently only work with CODECs that set the
'reg_word_size' field in their snd_soc_codec_driver struct. Going forward
support for ASoC level IO will eventually be removed and all drivers will be
converted to regmap. Preparing for the transition this patch adds support for
CODECs using regmap for IO to the SOC_SINGLE_XR_SX control. We already have the
val_bytes field in the CODEC struct which holds the number of bytes per word,
but it is only initialized when regmap is used. Also initialize it for drivers
still using legacy IO and update the SOC_SINGLE_XR_SX handlers to use it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen
f6272ff8a5 ASoC: Add snd_soc_kcontrol_platform() helper function
For platform controls snd_kcontrol_chip() currently returns a pointer to the
platform that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_platform() helper function that will hide the
implementation details of how the platform for a control can be obtained. This
will allow us to change this easily in the future.

The patch also updates all platforms to use this new helper function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen
ea53bf77d1 ASoC: Add snd_soc_kcontrol_codec() helper function
For CODEC controls snd_kcontrol_chip() currently returns a pointer to the
CODEC that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_codec() helper function that will hide the implementation
details of how the CODEC for a control can be obtained. This will allow us to
change this easily in the future.

The patch also updates all CODEC drivers to use the new helper function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Xiubo Li
7a34b1c1df ASoC: codec: fix the sparse check warnings.
Some thing Likes:

reproduce: make C=1 CF=-D__CHECK_ENDIAN__

sparse warnings: (new ones prefixed by >>)

>> sound/soc/codecs/wm8997.c:1084:15: sparse: symbol \
'wm8997_get_regmap' was not declared. Should it be static?

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li
964eafb1d5 ASoC: wm8997: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li
c0b6f59b70 ASoC: wm8994: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li
4504badea3 ASoC: wm8400: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li
aec0eb50e5 ASoC: wm8350: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
6e4842d30c ASoC: wm5110: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
c8b02acd45 ASoC: wm5102: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
83905ef3cb ASoC: si476x: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
d957f1651e ASoC: mc13783: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
49101a25ac ASoC: cq93vc: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
bbc0bd7fd3 ASoC: 88pm860x: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li
a39f75f790 ASoC: core: Move the default regmap I/O setting to snd_soc_register_codec()
Add the default regmap I/O setting to snd_soc_register_codec() while
the CODEC is initialising, which will be called by CODEC driver device
probe(), and then we can make XXX_set_cache_io() go away entirely from each
CODEC ASoC probe.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:18 +01:00
Charles Keepax
9374f375ab ASoC: wm5110: Add in OSR controls for OUT5/6
There are no OSR controls on outputs 1-4 on wm5110, however when these
were removed the ones on output 5 and 6 were also accidentally removed,
but those actually exist. This patch adds these controls back in.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:21:07 +01:00
Axel Lin
e4745fef55 spi: Remove unneeded include of linux/workqueue.h
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:20:15 +01:00
Axel Lin
c586feba88 spi: s3c24xx: Convert to use devm_kzalloc
Simplify the cleanup code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:19:39 +01:00
Axel Lin
7a40054361 spi: fsl-spi: Fix memory leak
mpc8xxx_spi_probe() has set master->cleanup = mpc8xxx_spi_cleanup,
however current code overrides the setting in fsl_spi_probe() and set
master->cleanup = fsl_spi_cleanup.
Thus the memory allocated for cs is not freed anywhere.
Convert to use devm_kzalloc to fix the memory leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:18:55 +01:00
Axel Lin
abcadeb255 spi: fsl: Kill mpc8xxx_spi_cleanup and convert fsl_espi_setup to use devm_kzalloc
In current code, master->cleanup and master->setup are not set in the same
function. This makes it hard to read and not good for code maintain.
One example is in fsl-spi.c, master->cleanup is overrided in mpc8xxx_spi_probe()
which leads to a memory leak.

This patch removes mpc8xxx_spi_cleanup() and converts fsl_espi_setup to use
devm_kzalloc so we don't need to take care of freeing memory.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:18:55 +01:00
Zhao Qiang
cd6339e6ce spi: add "spi-lsb-first" to devicetree
add optional property devicetree for SPI slave nodes
into devicetree so that LSB mode can be enabled by devicetree.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:17:01 +01:00
Harini Katakam
eee668a92b spi: core: Increase timeout value
The existing timeout value in wait_for_completion_timeout is
calculated from the transfer length and speed with tolerance of 10msec.
This is too low because this is used for error conditions such as
hardware hang etc.
The xfer->speed_hz considered may not be the actual speed set
because the best clock divisor is chosen from a limited set such that
the actual speed <= requested speed. This will lead to timeout being
less than actual transfer time.
Considering acceptable latencies, this timeout can be set to a
value double the expected transfer plus 100 msecs.
This patch adds the same in the core.

Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:07:02 +01:00
Axel Lin
0c3b97487d spi: atmel: Make current_remaining_bytes to be int
Don't use unsigned for current_remaining_bytes so we can check
current_remaining_bytes < 0 case.
Use int is enough for current_remaining_bytes.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:06:17 +01:00
Krzysztof Kozlowski
e80fb721ca regulator: s5m8767: Remove regulator_dev pointer from state container
Don't store pointer to regulator_dev returned by
devm_regulator_register() in state container. It isn't used anywhere
outside of probe.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:03:41 +01:00
Charles Keepax
5efe144681 regulator: core: Fix typo in of_regulator.h
Fix a typo from my patch adding of_regulator_put_match in the patch:

regulator: core: Add helper to put of_nodes from matches

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:01:24 +01:00
Charles Keepax
63c7c9e16c regulator: core: Get and put regulator of_node
Currently the regulator core does not take an additional reference to
the of_node it is passed. This means that the caller must ensure that
the of_node is valid for the duration of the regulator's existance.
It is reasonable for the framework to assume it is passed a valid
of_node but seems onerous for it to assume the caller will keep the node
valid for the life-time of the regulator, especially when
devm_regulator_register is used and there will likely be no code in the
driver called at the point it would be safe to put the of_node.

This patch adds an additional of_node_get when the regulator is
registered and an of_node_put when it is unregistered in the core. This
means individual drivers are free to put their of_node references at the
end of probe letting the regulator core handling it from there. This
simplifies code on the driver side.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:01:24 +01:00
Charles Keepax
3764806440 regulator: core: Add helper to put of_nodes from matches
As of_regulator_match will take an of_node reference to each matched
regulator, it makes sense to provide a helper to put all those
references. This patch does that.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:01:24 +01:00