Re: [Freedreno] [PATCH] of/device: add blacklist for iommu dma_ops

Hi Rob,

On 2019-06-05 14:57, Rob Clark wrote:

On Tue, Jun 4, 2019 at 11:58 PM Tomasz Figa tfiga@chromium.org wrote:

...

But first of all, I remember Marek already submitted some patches long ago that extended struct driver with some flag that means that the driver doesn't want the IOMMU to be attached before probe. Why wouldn't that work? Sounds like a perfect opt-out solution.

Actually, yeah.. we should do that. That is the simplest solution.

Tomasz has very good memory. It took me a while to find that old patches:

https://patchwork.kernel.org/patch/4677251/ https://patchwork.kernel.org/patch/4677941/ https://patchwork.kernel.org/patch/4677401/

It looks that my idea was a bit ahead of its time ;)

Best regards