From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guodong Xu Subject: [PATCH v2 1/4] dt-bindings: k3dma: add optional property hisilicon,dma-min-chan Date: Fri, 6 Jul 2018 11:55:18 +0800 Message-ID: <20180706035521.13736-2-guodong.xu@linaro.org> References: <20180706035521.13736-1-guodong.xu@linaro.org> Return-path: In-Reply-To: <20180706035521.13736-1-guodong.xu@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: vkoul@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, dan.j.williams@intel.com, xuwei5@hisilicon.com, catalin.marinas@arm.com, will.deacon@arm.com Cc: 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, Guodong Xu List-Id: devicetree@vger.kernel.org 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>; interrupts = <0 12 4>; clocks = <&pclk>; }; -- 2.17.1