dma: shdma: NMI support.

Presently DMA transfers are interrupted and aborted by the NMI. This
implements some basic logic for more gracefully handling and clearing
each controller's NMIF flag via the NMI die chain, needed to resume
transfers post-NMI.

Reported-by: Michael Szafranek <Michael.Szafranek@emtrion.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 4021275a0a43..52e4fb173805 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -43,6 +43,7 @@ struct sh_dmae_device {
         struct dma_device common;
         struct sh_dmae_chan *chan[SH_DMAC_MAX_CHANNELS];
         struct sh_dmae_pdata *pdata;
+        struct list_head node;
         u32 __iomem *chan_reg;
         u16 __iomem *dmars;
 };