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authorKenneth Heitke <kheitke@codeaurora.org>2014-02-12 20:44:24 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-15 20:55:28 +0100
commit39ae93e3a31d0c9ca99e35b754a9f3c6f1db2bee (patch)
tree88e35be655e440dbc3122ffdf67b1f62d3a4fc61 /crypto/twofish_common.c
parentspmi: add generic SPMI controller binding documentation (diff)
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spmi: Add MSM PMIC Arbiter SPMI controller
Qualcomm's PMIC Arbiter SPMI controller functions as a bus master and is used to communication with one or more PMIC (slave) devices on the SPMI bus. The PMIC Arbiter is actually a hardware wrapper around the SPMI controller that provides concurrent and autonomous PMIC access to various entities that need to communicate with the PMIC. The SPMI controller hardware handles all of the SPMI bus activity (bus arbitration, sequence start condition, transmission of frames, etc). This software driver uses the PMIC Arbiter register interface to initiate command sequences on the SPMI bus. The status register is read to determine when the command sequence has completed and whether or not it completed successfully. Signed-off-by: Kenneth Heitke <kheitke@codeaurora.org> Signed-off-by: Josh Cartwright <joshc@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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