linux-toradex.git/include/linux/soundwire, branch v4.16-rc4

soundwire: intel: Add Intel init module

2017-12-19T10:32:35+00:00

The SoundWire Master is implemented as part of Audio controller in
Intel platforms. Add a init module which creates SoundWire Master
platform devices based on the links supported in the hardware.

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: intel: Add Intel Master driver

2017-12-19T10:32:02+00:00

Some Intel platforms have SoundWire Master, so add Intel SoundWire
Master driver which uses Cadence module. This patch adds probe and
initialization routines for Intel Master driver.

Signed-off-by: Hardik T Shah 
Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add slave status handling

2017-12-19T10:28:13+00:00

Add status handling API sdw_handle_slave_status() to handle
Slave status changes.

Signed-off-by: Hardik T Shah 
Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add Slave status handling helpers

2017-12-19T10:27:33+00:00

SoundWire Slaves report status to bus. Add helpers to handle
the status changes.

Signed-off-by: Hardik T Shah 
Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add IO transfer

2017-12-19T10:14:57+00:00

SoundWire bus supports read or write register(s) for SoundWire Slave
device. sdw_read() and sdw_write() APIs are provided for single
register read/write. sdw_nread() and sdw_nwrite() for operations on
contiguous registers.

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add SoundWire MIPI defined registers

2017-12-19T10:14:57+00:00

MIPI SoundWire spec defines standard SoundWire registers mandatory for
SoundWire Slave devices, so add them.

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add MIPI DisCo property helpers

2017-12-19T10:14:57+00:00

MIPI Discovery And Configuration (DisCo) Specification for SoundWire
specifies properties to be implemented for SoundWire Masters and
Slaves. The DisCo spec doesn't mandate these properties. However,
SDW bus cannot work without knowing these values.

The helper functions read the Master and Slave properties.
Implementers of Master or Slave drivers can use any of the below
three mechanisms:
   a) Use these APIs here as .read_prop() callback for Master
      and Slave
   b) Implement own methods and set those as .read_prop(), but invoke
      APIs in this file for generic read and override the values with
      platform specific data
   c) Implement ones own methods which do not use anything provided
      here

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add Master registration

2017-12-19T10:14:56+00:00

A Master adds a SoundWire bus instance which scans the firmware
provided for device description.

In this patch we scan ACPI namespaces and create SoundWire
Slave devices based on ACPI description

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

soundwire: Add SoundWire bus type

2017-12-19T10:14:56+00:00

This adds the base SoundWire bus type, bus and driver registration.
along with changes to module device table for new SoundWire
device type.

Signed-off-by: Sanyog Kale 
Reviewed-by: Philippe Ombredanne 
Acked-By: Pierre-Louis Bossart 
Reviewed-by: Takashi Iwai 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman