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2019-05-15lib/math: move int_pow() from pwm_bl.c for wider useAndy Shevchenko1-0/+32
The integer exponentiation is used in few places and might be used in the future by other call sites. Move it to wider use. Link: http://lkml.kernel.org/r/20190323172531.80025-2-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: Ray Jui <rjui@broadcom.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>