From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2906C3403D for ; Tue, 18 Feb 2020 14:31:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8783021D56 for ; Tue, 18 Feb 2020 14:31:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="N1zndXMn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726751AbgBRObb (ORCPT ); Tue, 18 Feb 2020 09:31:31 -0500 Received: from lelv0142.ext.ti.com ([198.47.23.249]:51784 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726739AbgBROb2 (ORCPT ); Tue, 18 Feb 2020 09:31:28 -0500 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01IEVNYA025566; Tue, 18 Feb 2020 08:31:23 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1582036283; bh=afuYAwY1eOQaArGZOvGeyCSYFQzetKyAVrKQfS+rh7s=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=N1zndXMnb/XjoM3hOcFZOwrm5U7+AbCo0mz6CygTPfXUPkzcxdUEL8CobbkmugGoe DlHjAXhr8cNC6576pg2ookHcLOvSLeB3RBs2XkIBTPFr91gVke+9bLFNj3aVNGN3Fh bCN40DdYaPdXkMdoCBirI2Y9p9T6+bLORfS7TbW8= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 01IEVNjx117196 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 18 Feb 2020 08:31:23 -0600 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Tue, 18 Feb 2020 08:31:22 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Tue, 18 Feb 2020 08:31:22 -0600 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01IEVHXK098737; Tue, 18 Feb 2020 08:31:20 -0600 From: Peter Ujfalusi To: , , CC: , , , , Subject: [PATCH 1/2] dt-bindings: dma: ti: k3-udma: Update for atype support (virtualization) Date: Tue, 18 Feb 2020 16:31:25 +0200 Message-ID: <20200218143126.11361-2-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200218143126.11361-1-peter.ujfalusi@ti.com> References: <20200218143126.11361-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In UDMA each channel can use different ATYPE value which tells UDMA how the addresses in the descriptors should be treated: 0: pointers are physical addresses (no translation) 1: pointers are intermediate addresses (PVU) 2: pointers are virtual addresses (SMMU) When virtualized environment is used then the dma binding should use additional cell to configure the desired ATYPE for the channel. Signed-off-by: Peter Ujfalusi --- .../devicetree/bindings/dma/ti/k3-udma.yaml | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml index 8b5c346f23f6..567bb820b182 100644 --- a/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml +++ b/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml @@ -45,7 +45,8 @@ allOf: properties: "#dma-cells": - const: 1 + minimum: 1 + maximum: 2 description: | The cell is the PSI-L thread ID of the remote (to UDMAP) end. Valid ranges for thread ID depends on the data movement direction: @@ -55,6 +56,8 @@ properties: Please refer to the device documentation for the PSI-L thread map and also the PSI-L peripheral chapter for the correct thread ID. + When #dma-cells is 2, the second parameter is the channel ATYPE. + compatible: enum: - ti,am654-navss-main-udmap @@ -131,6 +134,20 @@ required: - ti,sci-rm-range-rchan - ti,sci-rm-range-rflow +if: + properties: + "#dma-cells": + const: 2 +then: + properties: + ti,udma-atype: + description: ATYPE value which should be used by non slave channels + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + required: + - ti,udma-atype + examples: - |+ cbass_main { -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki