From fc1aee038b609dc33067ca9dd477b16ea893cae0 Mon Sep 17 00:00:00 2001
From: Xiubo Li <Li.Xiubo@freescale.com>
Date: Wed, 11 Dec 2013 01:19:42 -0800
Subject: [PATCH] leds: leds-pwm: fix duty time overflow.

Overflow maybe occurs when calculates the duty time. For instance,
the period time is 990000000ns, and the max_brightness is 127, when
setting the brightness to 12, the duty value will be 25906026ns, but
it should be 93543307ns.

Signed-off-by: Bryan Wu <cooloney@gmail.com>
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