From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 4/5] dt-bindings: dma: ti-edma: Add option for reserved channel ranges Date: Thu, 29 Aug 2019 17:47:28 -0500 Message-ID: <20190829224728.GA1198@bogus> References: <20190823125618.8133-1-peter.ujfalusi@ti.com> <20190823125618.8133-5-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190823125618.8133-5-peter.ujfalusi@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Peter Ujfalusi Cc: vkoul@kernel.org, dan.j.williams@intel.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org List-Id: devicetree@vger.kernel.org On Fri, Aug 23, 2019 at 03:56:17PM +0300, Peter Ujfalusi wrote: > Similarly to paRAM slots, channels can be used by other cores. > > Add optional property to configure the reserved channel ranges. > > Signed-off-by: Peter Ujfalusi > --- > Documentation/devicetree/bindings/dma/ti-edma.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt > index 4bbc94d829c8..1198682ada99 100644 > --- a/Documentation/devicetree/bindings/dma/ti-edma.txt > +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt > @@ -42,6 +42,9 @@ Optional properties: > - ti,edma-reserved-slot-ranges: PaRAM slot ranges which should not be used by > the driver, they are allocated to be used by for example the > DSP. See example. > +- ti,edma-reserved-chan-ranges: channel ranges which should not be used by > + the driver, they are allocated to be used by for example the > + DSP. See example. Based on the other thread, I think extending dma-channel-mask to a uint32-array makes sense here. Rob