On Fri, May 19, 2017 at 08:59:03AM +0200, Geert Uytterhoeven wrote:
> Hi Vinod,
>
> On Fri, May 19, 2017 at 5:51 AM, Vinod Koul <vinod.koul@xxxxxxxxx> wrote:
> > On Tue, May 16, 2017 at 01:09:15AM +0200, Niklas Söderlund wrote:
> >> The IRQ number is needed after probe to be able to add synchronisation
> >> points in other places in the driver when freeing resources and to
> >> implement a device_synchronize() callback. Store the IRQ number in the
> >> struct rcar_dmac_chan so that it can be used later.
> >>
> >> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> >> ---
> >> drivers/dma/sh/rcar-dmac.c | 13 ++++++++-----
> >> 1 file changed, 8 insertions(+), 5 deletions(-)
> >>
> >> diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
> >> index db41795fe42ae6ed..c68c3336bdad44df 100644
> >> --- a/drivers/dma/sh/rcar-dmac.c
> >> +++ b/drivers/dma/sh/rcar-dmac.c
> >> @@ -144,6 +144,7 @@ struct rcar_dmac_chan_map {
> >> * @chan: base DMA channel object
> >> * @iomem: channel I/O memory base
> >> * @index: index of this channel in the controller
> >> + * @irq: channel IRQ
> >> * @src: slave memory address and size on the source side
> >> * @dst: slave memory address and size on the destination side
> >> * @mid_rid: hardware MID/RID for the DMA client using this channel
> >> @@ -161,6 +162,7 @@ struct rcar_dmac_chan {
> >> struct dma_chan chan;
> >> void __iomem *iomem;
> >> unsigned int index;
> >> + int irq;
> >
> > Thats a bit odd choice to store per ch, I would have stored in rcar_dmac.
> > Any specific reason, do we have per ch irq here?
>
> Yes, each channel has its own interrupt.
Then this one is just fine :)
--
~Vinod
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