clocksource: samsung_pwm_timer: Correct programming of clock events
In current code, the tick count value programmed to the hardware is always decremented by one. This is reasonable for periodic mode, since there is one extra tick between 0 and COUNT (after reloading), but it makes oneshot events happen 1 tick earlier than requested, because the interrupt is triggered on transition from 1 to 0. This patch removes the decrementation from PWM channel setup code and moves it instead to periodic timer setup, to make both periodic and oneshot modes work correctly. 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>
parent
e9b852b8
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