From 7101711ee4706915380bdd103902e864380a6987 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:42 -0700 Subject: [PATCH] staging: comedi: ni_mio_common: simplify AI LINKC handling Simplfy the LINKC handing for the analog input dma by moving it into the main interrupt handler. This function already hold the spinlock mite_channel_lock so call mite_sync_dma() directly instead of using the helper function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_mio_common.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 6e76c95a1e5c..9df1407a5c9d 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1295,11 +1295,6 @@ static void handle_a_interrupt(struct comedi_device *dev, { struct comedi_cmd *cmd = &s->async->cmd; -#ifdef PCIDMA - if (ai_mite_status & CHSR_LINKC) - ni_sync_ai_dma(dev); -#endif - /* test for all uncommon interrupt events at the same time */ if (status & (NISTC_AI_STATUS1_ERR | NISTC_AI_STATUS1_SC_TC | NISTC_AI_STATUS1_START1)) { @@ -5166,9 +5161,12 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) unsigned int m_status; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); - if (s_ai && devpriv->ai_mite_chan) + if (s_ai && devpriv->ai_mite_chan) { ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, s_ai); + if (ai_mite_status & CHSR_LINKC) + mite_sync_dma(devpriv->ai_mite_chan, s_ai); + } if (s_ao && devpriv->ao_mite_chan) { m_status = mite_ack_linkc(devpriv->ao_mite_chan, s_ao); -- 2.20.1