On Tue, 08 Oct 2019, Rasmus Villemoes wrote: > Using a power-of-2 instead of power-of-10 base makes the computations > much cheaper. 2^16 is safe; retval never becomes more than 2^48 + > 2^32/2. On a 32 bit platform, the very expensive 64/32 division at the > end of cie1931() instead becomes essentially free (a shift by 32 is > just a register rename). > > Reviewed-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx> > Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> > --- > drivers/video/backlight/pwm_bl.c | 22 ++++++++++++---------- > 1 file changed, 12 insertions(+), 10 deletions(-) Applied, thanks. -- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
