From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH v2 1/4] dt-bindings: k3dma: add optional property hisilicon,dma-min-chan Date: Wed, 11 Jul 2018 10:09:27 -0600 Message-ID: <20180711160927.GA31359@rob-hp-laptop> References: <20180706035521.13736-1-guodong.xu@linaro.org> <20180706035521.13736-2-guodong.xu@linaro.org> <20180709103438.GC22377@vkoul-mobl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20180709103438.GC22377@vkoul-mobl> Sender: linux-kernel-owner@vger.kernel.org To: Vinod , Guodong Xu Cc: mark.rutland@arm.com, dan.j.williams@intel.com, xuwei5@hisilicon.com, catalin.marinas@arm.com, will.deacon@arm.com, liyu65@hisilicon.com, suzhuangluan@hisilicon.com, xuhongtao8@hisilicon.com, zhongkaihua@huawei.com, xuezhiliang@hisilicon.com, xupeng7@huawei.com, sunliang10@huawei.com, fengbaopeng@hisilicon.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Mon, Jul 09, 2018 at 04:04:38PM +0530, Vinod wrote: > On 06-07-18, 11:55, Guodong Xu wrote: > > From: Li Yu > > > > Add optional property hisilicon,dma-min-chan for k3dma. > > > > Signed-off-by: Li Yu > > Signed-off-by: Guodong Xu > > --- > > Documentation/devicetree/bindings/dma/k3dma.txt | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt > > index 4945aeac4dc4..f34202a80f3c 100644 > > --- a/Documentation/devicetree/bindings/dma/k3dma.txt > > +++ b/Documentation/devicetree/bindings/dma/k3dma.txt > > @@ -12,6 +12,11 @@ Required properties: > > have specific request line > > - clocks: clock required > > > > +Optional properties: > > +- hisilicon,dma-min-chan: the minimum DMA channel number which is usable > > + Default value is 0, but in some platform it is > > + configured 1, like in hi3660 platform > > + > > Example: > > > > Controller: > > @@ -21,6 +26,7 @@ Controller: > > #dma-cells = <1>; > > dma-channels = <16>; > > dma-requests = <27>; > > + hisilicon,dma-min-chan = <1>; > > Am still expecting this to be a mask If so calling it 'min' doesn't make sense. And a mask should have 'mask' in the name. Rob