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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)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 6 Jan 2012 22:13:56 +0000 (14:13 -0800)
commit8048ac75378918eab0f68ba175915e72ef73e0da
tree6aeb17f8c843fe352836db6f1512058e28764ef5tree
parentf3545737cf06d342d34483b7a8421d0bb90b9c1bcommit | diff
ARM:imx:fix pwm period value

commit 5776ac2eb33164c77cdb4d2b48feee15616eaba3 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/arm/plat-mxc/pwm.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git