From patchwork Mon Sep 12 13:02:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinan Kaya X-Patchwork-Id: 9326399 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4733A6077F for ; Mon, 12 Sep 2016 13:03:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 39BA428DB2 for ; Mon, 12 Sep 2016 13:03:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D15B28DB7; Mon, 12 Sep 2016 13:03:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CE2D428DB2 for ; Mon, 12 Sep 2016 13:03:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758786AbcILND3 (ORCPT ); Mon, 12 Sep 2016 09:03:29 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:47374 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758759AbcILND0 (ORCPT ); Mon, 12 Sep 2016 09:03:26 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id AA33E61F3D; Mon, 12 Sep 2016 13:03:25 +0000 (UTC) Received: from drakthul.qualcomm.com (global_nat1_iad_fw.qualcomm.com [129.46.232.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: okaya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id DBCEB61EBA; Mon, 12 Sep 2016 13:03:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org DBCEB61EBA Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=okaya@codeaurora.org From: Sinan Kaya To: dmaengine@vger.kernel.org, timur@codeaurora.org, devicetree@vger.kernel.org, cov@codeaurora.org, vinod.koul@intel.com, jcm@redhat.com Cc: agross@codeaurora.org, arnd@arndb.de, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sinan Kaya , Rob Herring , Mark Rutland , linux-kernel@vger.kernel.org Subject: [PATCH V2 01/10] Documentation: DT: qcom_hidma: update binding for MSI Date: Mon, 12 Sep 2016 09:02:55 -0400 Message-Id: <1473685384-19913-2-git-send-email-okaya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1473685384-19913-1-git-send-email-okaya@codeaurora.org> References: <1473685384-19913-1-git-send-email-okaya@codeaurora.org> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Adding a new binding for qcom,hidma-1.1 to distinguish HW supporting MSI interrupts from the older revision. Signed-off-by: Sinan Kaya --- Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt index fd5618b..47bfb5a 100644 --- a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt +++ b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt @@ -47,12 +47,23 @@ When the OS is not in control of the management interface (i.e. it's a guest), the channel nodes appear on their own, not under a management node. Required properties: -- compatible: must contain "qcom,hidma-1.0" +- compatible: must contain "qcom,hidma-1.0" for initial HW or "qcom,hidma-1.1" +for MSI capable HW. - reg: Addresses for the transfer and event channel - interrupts: Should contain the event interrupt - desc-count: Number of asynchronous requests this channel can handle - iommus: required a iommu node +Optional properties for MSI: +- msi-parent: pointer to the MSI controller object with the DeviceID in use. + +Example: + msi_parent: <&msi0 0x80024> + +msi0 is the MSI controller in the system. Bits 0-5 is the channel ID. 4 +is the channel ID. Bits 5-8 is the instance number. This is for the HIDMA +instance 1. + Example: Hypervisor OS configuration: