From: Sean Cross <xobs@kosagi.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Grant Likely <grant.likely@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
linux-pwm@vger.kernel.org, devicetree@vger.kernel.org
Cc: Sean Cross <xobs@kosagi.com>
Subject: [PATCH] pwm: imx: Add support for low-speed PWM
Date: Mon, 28 Apr 2014 16:55:30 +0800 [thread overview]
Message-ID: <1398675331-10980-1-git-send-email-xobs@kosagi.com> (raw)
The i.MX PWM driver has a selectable clock source. In order to get very
long period lengths, the driver must select the 32.768 kHz clock.
It's unclear what the threshold should be to switch clocks, so set it
arbitrarily to 100 usecs.
Sean Cross (1):
pwm: imx: Support very long period lengths
drivers/pwm/pwm-imx.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--
1.9.2
next reply other threads:[~2014-04-28 9:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-28 8:55 Sean Cross [this message]
[not found] ` <1398675331-10980-1-git-send-email-xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
2014-04-28 8:55 ` [PATCH] pwm: imx: Support very long period lengths Sean Cross
2014-04-28 9:22 ` Sascha Hauer
2014-04-28 12:10 ` Sean Cross
2014-04-28 12:43 ` Sascha Hauer
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