Re: BUG: "iommu: Retire bus ops" breaks omap-iommu and omap3isp

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Am Mon, 7 Oct 2024 11:48:24 -0300
schrieb Jason Gunthorpe <jgg@xxxxxxxxxx>:

> On Mon, Oct 07, 2024 at 04:01:17PM +0200, Andreas Kemnade wrote:
> > > @@ -1233,6 +1233,12 @@ static int omap_iommu_probe(struct
> > > platform_device *pdev) err = iommu_device_register(&obj->iommu,
> > > &omap_iommu_ops, &pdev->dev); if (err)
> > >                         goto out_sysfs;
> > > +               /*
> > > +                * omap has a DT reprensetation but can't use the
> > > common DT
> > > +                * code. Setting fwnode to NULL causes probe to be
> > > called for
> > > +                * every device.
> > > +                */
> > > +               obj->iommu.fwnode = NULL;
> > >                 obj->has_iommu_driver = true;
> > >         }
> > >   
> > hmm, that looks nice for a regression fix.
> > 
> > Does it make sense to adopt dt so that the common code can be used
> > to ease future maintenance?  
> 
> It would be nice, but I recall omap doesn't use the standard dt
> layout?
> 
that is what is said in the comment. But what is missing? Is it one or
two properties at one place, or is it turing everything upside-down?

Regards,
Andreas




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