soundwire: Add IO transfer

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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 <sanyog.r.kale@intel.com>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Vinod Koul 2017-12-14 11:19:37 +05:30 • committed by Greg Kroah-Hartman

parent 6f3da1f388

commit 9d715fa005

3 changed files with 365 additions and 0 deletions

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272

drivers/soundwire/bus.c

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36

drivers/soundwire/bus.h

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57

include/linux/soundwire/sdw.h

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