Commit Graph

17 Commits

Author SHA1 Message Date
Koro Chen c1f2a34284 ASoC: mediatek: Turn AFE on/off in runtime resume/suspend
AFE is actually allowed to be turn on before configuration of DAIs
since each DAI has its own enabling control. Turn on/off AFE in
runtime resume/suspend to avoid AFE being shut down when closing a DAI
while other DAIs are still active.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-22 23:52:20 +00:00
Koro Chen 8d6f88ce96 ASoC: mediatek: Use current HW pointer for pointer callback
Previously we recorded "last interrupt position" and used it in
pointer callback. This is not correct implementation, and it causes
underruns when user space monitors buffer level to decide when to
send next data chunk in low latency application.

Remove position recording in IRQ handler and also hw_ptr in
struct mtk_afe_memif used to record that, and let pointer callback
reports current HW pointer instead.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-08 17:06:45 +00:00
Koro Chen b45e68df06 ASoC: mediatek: Move 22M/24M clock control into I2S ops
22M/24M clocks are only required for I2S, so move the control to
I2S DAI ops.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-17 18:54:29 +00:00
Mark Brown 9abbe73e7d Merge remote-tracking branches 'asoc/topic/jz4740', 'asoc/topic/kirkwood', 'asoc/topic/mtk', 'asoc/topic/multi' and 'asoc/topic/mxs' into asoc-next 2015-09-23 11:01:22 -07:00
Koro Chen e4fba9b5be ASoC: mediatek: Increase periods_min in capture
In capture, there is chance that hw_ptr reported at IRQ is
a little smaller than period_size due to internal AFE buffer.
In the case of ping-pong buffer:

|xxxxxxxxxxxxxxxxxxxxxxxxxxxx--|-----------------------------|
                            hw_ptr < period_size

This available buffer will not be read since its size is smaller than
avail_min (which is period_size by default), and read thread continues
to sleep. If the next hw_ptr is just a little larger than buffer_size,
overrun occurs. One more period can hold the possible unread buffer.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-14 18:13:54 +01:00
Axel Lin 887e83e32d ASoC: mediatek: Convert to devm_snd_soc_register_card
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-31 16:11:32 +01:00
Mark Brown acb47ad502 Merge remote-tracking branches 'asoc/topic/mediatek', 'asoc/topic/mtk', 'asoc/topic/nuc900', 'asoc/topic/of-name' and 'asoc/topic/omap' into asoc-next 2015-08-30 15:55:21 +01:00
Mark Brown 48997b9c03 Merge remote-tracking branches 'asoc/topic/au1x', 'asoc/topic/bcm2835', 'asoc/topic/blackfin' and 'asoc/topic/card' into asoc-next 2015-08-30 15:52:41 +01:00
Axel Lin 54d8697fa5 ASoC: Set missing card owner field
Set the card owner field to prevent the module from being removed from
underneath its users.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-21 09:07:19 -07:00
Koro Chen 0643558f85 ASoC: mediatek: Remove AIF widgets for backend DAIs
DAPM core already creates widgets for DAIs. It is not necessary
to declare them by SND_SOC_DAPM_AIF_IN/SND_SOC_DAPM_AIF_OUT.
Furthermore, original codes use backend DAI's stream name to be the AIF
widget name. It causes the same widget to be created twice, and after
commit 92fa124267 ("ASoC: dapm: Add new widgets to the end of the
widget list") the first created widget (by snd_soc_dapm_new_controls)
is used, not the 2nd created one (by snd_soc_dapm_new_dai_widgets),
so audio path is broken.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-17 10:52:08 -07:00
Koro Chen 775b07de4f ASoC: mediatek: Add suspend/resume callbacks
This adds suspend/resume callbacks, which are common for each DAI.
To be able to continue the last playback/capture after resume
when suspend was done during a playback/capture, in the callbacks
we do backup/restore of registers which were set before prepare stage.
Registers to be backup/restore are defined in a backup list array.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-22 11:11:18 +01:00
Krzysztof Kozlowski 27bc1dd244 ASoC: mediatek: Drop owner assignment from platform_driver
platform_driver does not need to set an owner because
platform_driver_register() will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-14 18:10:16 +01:00
Koro Chen 94319ba10e ASoC: mediatek: Use platform_of_node for machine drivers
This replaces the platform_name in snd_soc_dai_link by device tree node.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-09 09:30:12 +01:00
Koro Chen 4623a614e8 ASoC: mediatek: Fix unbalanced calls to runtime suspend/resume
This adds call to runtime suspend in dev remove. It fixs the problem that
suspend is not called in the case of CONFIG_PM=n. It also fixs build
warning when CONFIG_PM=n.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-23 12:10:01 +01:00
Koro Chen 662e8d917f ASoC: mediatek: Add machine driver for rt5650 rt5676 codec
This is the DPCM based machine driver with rt5650 and rt5676

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-16 12:52:36 +01:00
Koro Chen a54f6f0c5b ASoC: mediatek: Add machine driver for MAX98090 codec
This is the DPCM based machine driver with MAX98090

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-16 12:52:36 +01:00
Koro Chen ee0bcaff10 ASoC: mediatek: Add AFE platform driver
This is the DPCM based platform driver of AFE (Audio Front End) unit.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-16 12:51:21 +01:00