From: Tomasz Figa <t.figa@samsung.com>
Date: Tue, 23 Apr 2013 15:46:30 +0000 (+0200)
Subject: clocksource: samsung_pwm_timer: Work around rounding errors in clockevents core
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~6^2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81d4f7bfdc9417e7d8fc1133c762daa4458eec5e;p=pandora-kernel.git

clocksource: samsung_pwm_timer: Work around rounding errors in clockevents core

Due to rounding errors in clockevents core (in conversions between ticks
and nsecs), it might happen that the set_next_event callback gets called
with cycles = 0, causing the code to incorrectly program the PWM timer.

This patch modifies the callback to program the timer for 1 tick, if
received tick count value is 0.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---

Reading git-diff-tree failed