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H A Dpwm-imx-util.cb2580877b599f94730d8d174e0d83cb89217e2d6 Wed May 06 07:57:48 UTC 2015 Brecht Neyrinck <bnrn@psicontrol.com> bugfix i.mx6 pwm: prevent overflow of period_c * duty_ns

Prevent overflow by casting duty_ns to ull first. This bug came up when trying to create a 200 Hz PWM

Signed-off-by: Brecht Neyrinck <bnrn@psicontrol.com>
Acked-by: Heiko Schocher<hs@denx.de>