i2c: designware: Separate timing parameter setting from HW initalization

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Mixed timing parameter validation, calculation and their debug prints
with HW initialization in i2c_dw_init_master() and i2c_dw_init_slave()
as been bothering me some time.

It makes function a little bit unclear to follow, doesn't show what steps
are needed to do only once during probe and what are needed whenever HW
needs to be reinitialized. Also those debug prints show information that
doesn't change runtime and thus are also needlessly printed multiple times
whenever HW is reinitialized.

Thus let the i2c_dw_init_master() and i2c_dw_init_slave() to do only HW
initialization and move out one time parameter setting and debug prints
to separate functions which are called only during probe.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

...

This commit is contained in:

Jarkko Nikula 2018-06-19 14:23:23 +03:00 • committed by Wolfram Sang

parent 1080ee7e28

commit 56b637b5b2

1 changed files with 80 additions and 50 deletions

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drivers/i2c/busses/i2c-designware-master.c

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