From: Arnd Bergmann Date: Tue, 23 Apr 2013 16:30:47 +0000 (+0200) Subject: staging: comedi/daqboard2000: use mdelay for large delays X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=4623c3e0a997e7bac5cb45bb57edcd082f131708;p=openwrt%2Fstaging%2Fblogic.git staging: comedi/daqboard2000: use mdelay for large delays On ARM, it is not legal to pass values larger than 2ms into udelay(), and mdelay() must be used instead, to avoid this build error: ERROR: "__bad_udelay" [drivers/staging/comedi/drivers/daqboard2000.ko] undefined! On a related note, any use of mdelay() or large udelay() numbers should be carefully reviewed, and replaced with msleep() or a different implementation that does not rely on delaying the work. Signed-off-by: Arnd Bergmann Reviewed-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c index c1f14f0b6c1a..b87f95c3e17d 100644 --- a/drivers/staging/comedi/drivers/daqboard2000.c +++ b/drivers/staging/comedi/drivers/daqboard2000.c @@ -462,9 +462,9 @@ static void daqboard2000_resetLocalBus(struct comedi_device *dev) struct daqboard2000_private *devpriv = dev->private; writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); } static void daqboard2000_reloadPLX(struct comedi_device *dev) @@ -472,11 +472,11 @@ static void daqboard2000_reloadPLX(struct comedi_device *dev) struct daqboard2000_private *devpriv = dev->private; writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); } static void daqboard2000_pulseProgPin(struct comedi_device *dev) @@ -484,9 +484,9 @@ static void daqboard2000_pulseProgPin(struct comedi_device *dev) struct daqboard2000_private *devpriv = dev->private; writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c); - udelay(10000); + mdelay(10); writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c); - udelay(10000); /* Not in the original code, but I like symmetry... */ + mdelay(10); /* Not in the original code, but I like symmetry... */ } static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)