These patches optimize the cie1913() implementation by using fewer 64 bit divisions and multiplications. It also contains a minor fix for the linear constant used. v2: - Drop patch 5. - Fix thinko in patch 4, otherwise no code change. - Better changelog in patch 3. - Add Daniel's Reviewed-By to the four patches. Daniel, I took the liberty of adding your R-B to patch 4 despite changing it a little to fix a thinko - I should add 1<<31 and not 1<<15. Please tell me if that was inappropriate. Rasmus Villemoes (4): backlight: pwm_bl: fix cie1913 comments and constant backlight: pwm_bl: eliminate a 64/32 division backlight: pwm_bl: drop use of int_pow() backlight: pwm_bl: switch to power-of-2 base for fixed-point math drivers/video/backlight/pwm_bl.c | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-) -- 2.20.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
