Commit Graph

10 Commits

Author SHA1 Message Date
Olivier Moysan 88dce52ee9
ASoC: stm32: i2s: remove useless callback
Clocks do not need to be released on driver removal,
as this is already managed before.
Remove useless remove callback.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:43 +00:00
Olivier Moysan 1ac2bd1644
ASoC: stm32: i2s: fix dma configuration
DMA configuration is not balanced on start/stop.
Move DMA configuration to trigger callback.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:30 +00:00
Olivier Moysan ebf629d502
ASoC: stm32: i2s: fix stream count management
Move counter handling to trigger start section
to manage multiple start/stop events.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:41:17 +00:00
Olivier Moysan 0c4c68d6fa
ASoC: stm32: i2s: fix 16 bit format support
I2S supports 16 bits data in 32 channel length.
However the expected driver behavior, is to
set channel length to 16 bits when data format is 16 bits.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:36:43 +00:00
Olivier Moysan 8ba3c5215d
ASoC: stm32: i2s: fix IRQ clearing
Because of regmap cache, interrupts may not be cleared
as expected.
Declare IFCR register as write only and make writings
to IFCR register unconditional.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 15:36:40 +00:00
Olivier Moysan 6a68eeee0f
SoC: stm32: i2s: manage clock power
Kernel clock management:
Enable/disable I2S kernel clock on audio stream startup/shutdown.

Peripheral clock management:
Manage I2S peripheral clock power through regmap services.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08 13:01:22 +00:00
Olivier Moysan 307cce4a00
ASoC: stm32: i2s: add power management
Add suspend and resume sleep callbacks,
to support system low power modes.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08 13:01:07 +00:00
Philipp Zabel 635eac1e54 ASoC: stm32: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-19 17:07:04 +01:00
olivier moysan e7cc49b8ad ASoC: stm32: Add full duplex support to i2s
This patch allows to use i2s interface either as single
audio path (rx or tx), or bidirectional audio path.
This patch is added separately, as the driver does not
follow recommended use of the interface, to support this
configuration.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-05-19 18:34:43 +01:00
olivier moysan e4e6ec7b12 ASoC: stm32: Add I2S driver
Add I2S ASoC driver for STM32.
This version of the driver supports only
exclusive playback and capture interface.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-05-19 18:34:43 +01:00