linux-toradex.git/sound/soc/dwc, branch v4.15

ASoC: dwc: fix typos in Kconfig

2017-10-09T08:47:48+00:00

This fixes a few typos in the snd_designware description.

Signed-off-by: Nik Nyby 
Signed-off-by: Mark Brown

ASoC: dwc: Delete an error message for a failed memory allocation in dw_i2s_probe()

2017-08-14T16:28:51+00:00

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring 
Signed-off-by: Mark Brown

ASoC: dwc: constify snd_soc_dai_ops structure

2017-07-17T15:54:30+00:00

This structure is only stored in the ops field of a snd_soc_dai_driver
structure. That field is declared const, so snd_soc_dai_ops structures
that have this property can be declared as const also.

Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: Mark Brown

ASoC: dwc: Added a quirk DW_I2S_QUIRK_16BIT_IDX_OVERRIDE to dwc driver

2017-06-28T18:01:12+00:00

Added quirk DW_I2S_QUIRK_16BIT_IDX_OVERRIDE to Designware
driver. This quirk will set idx value to 1.

By setting this quirk, it will override supported format
as 16 bit resolution and bus width as 2 Bytes.

Reviewed-by: Alex Deucher 
Signed-off-by: Vijendar Mukunda 
Signed-off-by: Alex Deucher 
Signed-off-by: Mark Brown

ASoC: dwc: Disallow building designware_pcm as a module

2017-04-30T12:27:04+00:00

Designware PCM is an extension to Designware I2S and they are dependent
on each other. For this reason, make Designware PCM a boolean which will
compile with Desigwnare I2S module. The name of the module is not changed
but the name of the files need to be changed.

Also, without this commit we get errors when probbing designware_i2s module
because of unspecified license:

designware_pcm: module license 'unspecified' taints kernel.
Disabling lock debugging due to kernel taint
designware_pcm: Unknown symbol __rcu_read_lock (err 0)
designware_pcm: Unknown symbol devm_snd_soc_register_platform (err 0)
designware_pcm: Unknown symbol synchronize_rcu (err 0)
designware_pcm: Unknown symbol __rcu_read_unlock (err 0)
designware_pcm: Unknown symbol snd_soc_set_runtime_hwparams (err 0)

So, this is really needed as a fix.

Fixes: 79361b2b98b7 ("ASoC: dwc: Add PIO PCM extension")
Signed-off-by: Lubomir Rintel 
Signed-off-by: Jose Abreu 
Signed-off-by: Mark Brown

ASoC: dwc: Enable 24 bit sample size in PIO mode

2017-01-09T11:59:09+00:00

Sample size of 24 bits use in reality 32 bits for storage. We
can safelly enable this sample size and treat the data as
32 bits.

Tested in a x86_64 platform and in ARC AXS101 SDP platform.

Signed-off-by: Jose Abreu 
Signed-off-by: Mark Brown

ASoC: dwc: Add record capability in PIO mode

2017-01-09T11:59:05+00:00

Up until now PIO mode offered only playback support. With
this patch we add support for record mode. The PCM was
refactored so that we could reuse the existing infrastructure
without many changes.

We have support for 16 and 32 bits of sample size using
only 2 channels.

Tested in a x86_64 platform and in ARC AXS101 SDP platform.

Signed-off-by: Jose Abreu 
Signed-off-by: Mark Brown

ASoC: dwc: Fix PIO mode initialization

2016-12-14T14:38:10+00:00

We can no longer rely on the return value of
devm_snd_dmaengine_pcm_register(...) to check if the DMA
handle is declared in the DT.

Previously this check activated PIO mode but currently
dma_request_chan returns either a valid channel or -EPROBE_DEFER.

In order to activate PIO mode check instead if the interrupt
line is declared. This reflects better what is documented in
the DT bindings (see Documentation/devicetree/bindings/sound/
designware-i2s.txt).

Also, initialize use_pio variable which was never being set
causing PIO mode to never work.

Signed-off-by: Jose Abreu 
Signed-off-by: Mark Brown

ASoC: dwc: Drop DMA channel names assignment

2016-08-08T10:54:50+00:00

The dw_configure_dai_by_dt() function and further dev->{play,capture}
_dma_data.dt data structures seem to be used in this driver only in case
of a system using devicetree, thus chan_name assignments have no effect
since they will be ignored in dmaengine_pcm_request_chan_of() call and
will be substituted with values taken form dmaengine_pcm_dma_channel_names[]
table ("tx", "rx").

Also there is no any "TX", "RX" dma-names entries in arch/arm/boot/dts,
only lower case "tx", "rx" seem to be used.

Lastly, this driver doesn't set SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME
flag when registering a dmaengine PCM to indicate the chan_name should be
used.

My intention is to eventually remove the struct snd_dmaengine_dai_dma_data
chan_name field as there is also a chan_names[] field in struct
snd_dmaengine_pcm_config which can be used for same purpose.

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Mark Brown

SoC: dwc: trivial fix of spelling mistake "unsuppted" -> "unsupported"

2016-06-26T01:18:52+00:00

trivial fix to spelling mistake in dev_err message

Signed-off-by: Colin Ian King 
Signed-off-by: Mark Brown