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Subject[PATCH v6 0/5] clk: fractional-divider: do a clean up and update
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The series provides a clean up for clk-fractional-divider together with moving
it to use rational best approximation algorithm. I think the patches are
self-explanatory.

The series was tested with 8250_dw UART driver on Intel Braswell.

Patch 5 is an amendment to existing user of the fractional divider outside of
clock framework.

Changelog v6:
- rebase on top of latest clk-next branch
- add ACKs from Heikki

Changelog v5:
- drop patch 1 (there is another fix already in upstream)
- add tags (Ack, Review)

Changelog v4:
- remove dependency to clk_div_mask() and use GENMASK() instead
- apply changes to rockchip
- amend 8250_dw driver to use proposed changes

Changelog v3:
- add patch 2/3 to simplify further usage
- don't use mult_frac() due to potential overflow on 32 bit kernels
- guarantee in ->round_rate() that m and n will not overflow

Changelog v2:
- move to rational_best_approximation() and mult_frac()
- add patch 2/2

Andy Shevchenko (5):
clk: fractional-divider: rename prate -> parent_rate
clk: fractional-divider: keep mwidth and nwidth internally
clk: rockchip: save width in struct clk_fractional_divider
clk: fractional-divider: switch to rational best approximation
serial: 8250_dw: allow lower reference frequencies

drivers/clk/Kconfig | 1 +
drivers/clk/clk-fractional-divider.c | 53 ++++++++++++++++++++++--------------
drivers/clk/rockchip/clk.c | 6 ++--
drivers/tty/serial/8250/8250_dw.c | 4 ---
include/linux/clk-provider.h | 3 +-
5 files changed, 40 insertions(+), 27 deletions(-)

--
2.5.1



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