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Message-Id: <1405960146-8959-3-git-send-email-abbotti@mev.co.uk> Date: Mon, 21 Jul 2014 17:29:06 +0100 From: Ian Abbott <abbotti@....co.uk> To: driverdev-devel@...uxdriverproject.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Ian Abbott <abbotti@....co.uk>, H Hartley Sweeten <hartleys@...ionengravers.com>, linux-kernel@...r.kernel.org Subject: [PATCH 2/2] staging: comedi: ni_6527: reset edge detection registers `ni6527_reset()` is called to reset various registers when the device is being initialized or deinitialized. The edge detection interrupt is disabled by this function, but the rising and falling edge detection registers are currently left alone. Call `ni6527_set_edge_detection()` to set them to a known, disabled state. Signed-off-by: Ian Abbott <abbotti@....co.uk> --- drivers/staging/comedi/drivers/ni_6527.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index 57d8d4c..8ea93b5 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -393,6 +393,9 @@ static void ni6527_reset(struct comedi_device *dev) /* disable deglitch filters on all channels */ ni6527_set_filter_enable(dev, 0); + /* disable edge detection */ + ni6527_set_edge_detection(dev, 0xffffffff, 0, 0); + writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT, mmio + NI6527_CLR_REG); writeb(NI6527_CTRL_DISABLE_IRQS, mmio + NI6527_CTRL_REG); -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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