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ARM:imx:fix pwm period value
authorJason Chen <jason.chen@linaro.org>
Mon, 19 Dec 2011 03:23:28 +0000 (11:23 +0800)
committerSascha Hauer <s.hauer@pengutronix.de>
Mon, 19 Dec 2011 11:25:35 +0000 (12:25 +0100)
According to imx pwm RM, the real period value should be
PERIOD value in PWMPR plus 2.

PWMO (Hz) = PCLK(Hz) / (period +2)

Signed-off-by: Jason Chen <jason.chen@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable@kernel.org

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