From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753645AbbJPHfr (ORCPT ); Fri, 16 Oct 2015 03:35:47 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:4857 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751968AbbJPHfe (ORCPT ); Fri, 16 Oct 2015 03:35:34 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Fri, 16 Oct 2015 00:34:14 -0700 From: Jon Hunter To: Laxman Dewangan , Vinod Koul , Stephen Warren , Thierry Reding , Alexandre Courbot , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala CC: , , , Jon Hunter Subject: [PATCH V3 1/2] Documentation: DT: Add binding documentation for NVIDIA ADMA Date: Fri, 16 Oct 2015 08:35:18 +0100 Message-ID: <1444980919-20331-2-git-send-email-jonathanh@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1444980919-20331-1-git-send-email-jonathanh@nvidia.com> References: <1444980919-20331-1-git-send-email-jonathanh@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add device-tree binding documentation for the Tegra210 Audio DMA controller. Signed-off-by: Jon Hunter --- .../devicetree/bindings/dma/tegra210-adma.txt | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/tegra210-adma.txt diff --git a/Documentation/devicetree/bindings/dma/tegra210-adma.txt b/Documentation/devicetree/bindings/dma/tegra210-adma.txt new file mode 100644 index 000000000000..5e4eda1d1918 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/tegra210-adma.txt @@ -0,0 +1,50 @@ +* NVIDIA Tegra Audio DMA (ADMA) controller + +Required properties: +- compatible: Must be "nvidia,tegra210-adma". +- reg: Should contain DMA registers location and length. This should be + a single entry that includes all of the per-channel registers in one + contiguous bank. +- interrupt-parent: Phandle to the interrupt parent controller. +- interrupts: Should contain all of the per-channel DMA interrupts in + ascending order with respect to the DMA channel index. +- clocks: Must contain one entry for the ADMA module clock, "adma_ape". +- clock-names: Must contain the entry "adma_ape". +- #dma-cells : Must be 1. The first cell denotes the receive/transmit + request number and should be between 1 and the maximum number of + requests supported. This value corresponds to the RX/TX_REQUEST_SELECT + fields in the ADMA_CHn_CTRL register. + + +Example: + +adma: adma@702e2000 { + compatible = "nvidia,tegra210-adma"; + reg = <0x0 0x702e2000 0x0 0x2000>; + interrupt-parent = <&tegra_agic>; + interrupts = , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + ; + clocks = <&tegra_car TEGRA210_CLK_ADMA_APE>; + clock-names = "adma_ape"; + #dma-cells = <1>; +}; -- 2.1.4