From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH 4/5] dt-bindings: dma: ti-edma: Add option for reserved channel ranges Date: Fri, 30 Aug 2019 08:37:33 +0300 Message-ID: References: <20190823125618.8133-1-peter.ujfalusi@ti.com> <20190823125618.8133-5-peter.ujfalusi@ti.com> <20190829224728.GA1198@bogus> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190829224728.GA1198@bogus> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Rob Herring 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 Rob, On 30/08/2019 1.47, Rob Herring wrote: > 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. Yes, that is the reason I have asked on that and I'm in progress of converting the edma driver to use the dma-channel-mask. Just need to do some shuffling in the driver to get the mask in a form usable by the driver. I'll send an updated series early next week. - Péter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki