Hi Bharat, On 1/13/2021 8:55 AM, Florian Fainelli wrote: > On 1/13/21 12:05 AM, Arnd Bergmann wrote: >> On Wed, Jan 13, 2021 at 4:42 AM Bharat Gooty <bharat.gooty@xxxxxxxxxxxx> wrote: >>> >>> Hello Ray, >>> >>> I had cross checked with Design and integration team. >>> Yes we can set the "dma-rages" to 40 bit DMA ranges. Tested, it is working. >>> >>> -----Original Message----- >>> From: Ray Jui <ray.jui@xxxxxxxxxxxx> >>> >>> Bharat can correct me if I'm wrong, but I don't think we have a bug in >>> the USB DMA engine that causes it can only address 32-bit. I believe we >>> can set dma-ranges size to 40-bit here. >>> >>> The dma-range property is though required to be specified, instead of >>> leaving it as empty, with the use of IOMMU. That seems to be a v5.10 >>> specific behavior as I described below. >> >> Ok, thanks for double-checking. I had misremembered the version >> that actually went into the as the one that used 64-bit dma-ranges >> and thought that was what broke, rather than the version without >> dma-ranges. >> >> If any of you want to send me that bugfix directly, or have Florian >> pick it up through his fixes branch, I'll make sure we get it into v5.11. > > I have another change for v5.11 that I would like to send, so please do > send a bugfix when you get a chance and we can lump those two changes > together, say, by the end of the week? > Would you be able to help to send this out by the end of this week as Florian advised? Your previous patch with the extension to 40-bit in size plus a fixes-by tag should do! Thanks! Ray
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