On Wed, Feb 06, 2019 at 02:57:51PM -0600, Rob Herring wrote: > On Wed, Feb 6, 2019 at 1:42 PM Maxime Ripard <maxime.ripard@xxxxxxxxxxx> wrote: > > > > Some SoCs have devices that are using a separate bus from the main bus to > > perform DMA. > > > > These buses might have some restrictions and/or different mapping than from > > the CPU side, so we'd need to express those using the usual dma-ranges, but > > using a different DT node than the node's parent. > > > > Add support for a dma-parent property that links to the DMA bus used by the > > device in such a case. > > ?? dma-parent is gone now, right? And I see #dma-parent-cells? Urgh, right... I forgot to update the commit log, I'll resend it. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
