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mfd: Add Renesas Synchronization Management Unit (SMU) support

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Add support for ClockMatrix(TM) and 82P33xxx families of timing
and synchronization devices. The access interface can be either
SPI or I2C. Currently, it will create 2 types of MFD devices,
which are to be used by the corresponding rsmu character device
driver and the PTP hardware clock driver, respectively.

Signed-off-by: Min Li <min.li.xe@renesas.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Min Li 2021-06-18 12:37:12 -04:00 • committed by Lee Jones
commit a1867f85e0
9 changed files with 1490 additions and 0 deletions
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