Messages in this thread |  | | Date | Wed, 16 Jun 2021 09:45:10 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH v9 1/3] dmaengine: ptdma: Initial driver for the AMD PTDMA |
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On 15-06-21, 16:50, Sanjay R Mehta wrote:
> >> +static struct pt_device *pt_alloc_struct(struct device *dev) > >> +{ > >> + struct pt_device *pt; > >> + > >> + pt = devm_kzalloc(dev, sizeof(*pt), GFP_KERNEL); > >> + > >> + if (!pt) > >> + return NULL; > >> + pt->dev = dev; > >> + pt->ord = atomic_inc_return(&pt_ordinal); > > > > What is the use of this number? > > > > There are eight similar instances of this DMA engine on AMD SOC. > It is to differentiate each of these instances.
Are they individual device objects?
-- ~Vinod
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