Re: [PATCH v2 4/7] of: address: Add support for the dma-parent property
From: Maxime Ripard <hidden>
Date: 2019-02-11 13:09:15
Also in:
dri-devel, linux-devicetree
On Wed, Feb 06, 2019 at 02:57:51PM -0600, Rob Herring wrote:
On Wed, Feb 6, 2019 at 1:42 PM Maxime Ripard [off-list ref] wrote:quoted
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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel