The series provides a clean up for clk-fractional-diveder 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 6 is an amendment to existing user of the fractional divider outside of clock framework. Greg, it would be nice to have your Ack on this if no objections. 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 (6): clk: fractional-divider: fix sparse warnings 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 | 90 ++++++++++++++++++++++-------------- drivers/clk/rockchip/clk.c | 6 ++- drivers/tty/serial/8250/8250_dw.c | 4 -- include/linux/clk-provider.h | 3 +- 5 files changed, 62 insertions(+), 42 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
