Re: [Xen-devel] [PATCH 07/11] dts: arm64: layerscape: add dma-ranges property to qoric-mc node

[Shawn Guo <shawnguo@xxxxxxxxxx>]

On Mon, Oct 14, 2019 at 12:00:25PM +0200, Nicolas Saenz Julienne wrote:
> On Mon, 2019-10-14 at 16:28 +0800, Shawn Guo wrote:
> > On Tue, Sep 24, 2019 at 08:12:38PM +0200, Nicolas Saenz Julienne wrote:
> > > qoriq-mc's dpmacs DMA configuration is inherited from their parent node,
> > > which acts a bus in this regard. So far it maked all devices as
> > > dma-coherent but no dma-ranges recommendation is made.
> > > 
> > > The truth is that the underlying interconnect has DMA constraints, so
> > > add an empty dma-ranges in qoriq-mc's node in order for DT's DMA
> > > configuration code to get the DMA constraints from it.
> > > 
> > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
> > 
> > Updated subject prefix as 'arm64: dts: ...', and applied the patch.
> 
> Hi Shawn,
> these two patches are no longer needed. This series has been superseded by 
> this
> patch[1] 951d48855d ('of: Make of_dma_get_range() work on bus nodes', 
> available
> in linux-next) which fixed the issue directly in OF code.
> 
> Sorry for the noise.

Okay, thanks for letting me know.  Dropped them.

Shawn

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