Re: [PATCH V3 2/3] PCI: rcar: Do not abort on too many inbound dma-ranges

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On Fri, Aug 16, 2019 at 03:28:04PM +0200, Marek Vasut wrote:
> On 8/16/19 3:23 PM, Simon Horman wrote:
> > On Fri, Aug 09, 2019 at 07:57:40PM +0200, marek.vasut@xxxxxxxxx wrote:
> >> From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> >>
> >> In case the "dma-ranges" DT property contains either too many ranges
> >> or the range start address is unaligned in such a way that populating
> >> the range into the controller requires multiple entries, a situation
> >> may occur where all ranges cannot be loaded into the controller.
> >>
> >> Currently, the driver refuses to probe in such a situation. Relax this
> >> behavior, load as many ranges as possible and warn if some ranges do
> >> not fit anymore.
> > 
> > What is the motivation for relaxing this?
> 
> U-Boot can fill the ranges in properly now, the list would be longer in
> such a case and the driver would fail to probe (because the list is
> longer than what the hardware can support).

Thanks, I think that would be worth adding to the changelog.

Regardless,

Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>




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