diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2016-04-21 12:04:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-28 22:19:49 -0700 |
| commit | f7d005c33c109ef034c9480334d3d25d91aa2d6d (patch) | |
| tree | f9e0c28cf63ecb090e0900dc1daf2320883ad1fb /drivers/staging/comedi/drivers/ni_pcidio.c | |
| parent | 3da088cae2a5f2ae6e8192db4b6e36496fd81514 (diff) | |
staging: comedi: mite: make mite_ack_linkc() handle mite_sync_dma()
The mite dma is always synced on a LINKC status. Some of the mite users
sync the dma regadless of the status.
Add a 'sync' parameter to mite_ack_linkc() to force a dma sync. Then do
the dma sync as needed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_pcidio.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_pcidio.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index b4c6bab57a26..4a34da5140e0 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -400,13 +400,8 @@ static irqreturn_t nidio_interrupt(int irq, void *d) spin_lock(&devpriv->mite_channel_lock); if (devpriv->di_mite_chan) { - unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan, - s); - - if (m_status & CHSR_LINKC) { - mite_sync_dma(devpriv->di_mite_chan, s); - /* XXX need to byteswap */ - } + mite_ack_linkc(devpriv->di_mite_chan, s, false); + /* XXX need to byteswap sync'ed dma */ } spin_unlock(&devpriv->mite_channel_lock); |