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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFCFBC433EF for ; Wed, 11 May 2022 02:27:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241415AbiEKC1N (ORCPT ); Tue, 10 May 2022 22:27:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241147AbiEKC1J (ORCPT ); Tue, 10 May 2022 22:27:09 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D25EF252B9; Tue, 10 May 2022 19:27:03 -0700 (PDT) X-UUID: c336104a6f984458885a7a98b3ed924b-20220511 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4,REQID:f812588a-7128-4be8-87d9-57df20bc8858,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:faefae9,CLOUDID:d6df58b3-56b5-4c9e-8d83-0070b288eb6a,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,File:nil,QS:0,BEC:nil X-UUID: c336104a6f984458885a7a98b3ed924b-20220511 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 199278061; Wed, 11 May 2022 10:26:58 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 11 May 2022 10:26:56 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 11 May 2022 10:26:56 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 11 May 2022 10:26:56 +0800 Message-ID: <4d2b1c2c4ab27ba96d59b9a0e3adcdab311ec897.camel@mediatek.com> Subject: Re: [PATCH v2 1/3] dt-bindings: mediatek: add vdosys1 RDMA definition for mt8195 From: Rex-BC Chen To: Krzysztof Kozlowski , Chen-Yu Tsai CC: "robh+dt@kernel.org" , "krzysztof.kozlowski+dt@linaro.org" , "chunkuang.hu@kernel.org" , "p.zabel@pengutronix.de" , "devicetree@vger.kernel.org" , "airlied@linux.ie" , "Jason-JH Lin =?UTF-8?Q?=28=E6=9E=97=E7=9D=BF=E7=A5=A5=29?=" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , Project_Global_Chrome_Upstream_Group , Nancy Lin =?UTF-8?Q?=28=E6=9E=97=E6=AC=A3=E8=9E=A2=29?= , "linux-mediatek@lists.infradead.org" , "matthias.bgg@gmail.com" , "linux-arm-kernel@lists.infradead.org" , "angelogioacchino.delregno@collabora.com" Date: Wed, 11 May 2022 10:26:56 +0800 In-Reply-To: <0686125d-4984-5dcd-32ca-4eeece09d7c3@linaro.org> References: <20220509044302.27878-1-rex-bc.chen@mediatek.com> <20220509044302.27878-2-rex-bc.chen@mediatek.com> <1c3fd336-1450-9b68-df81-2f01cc2ba32f@linaro.org> <0686125d-4984-5dcd-32ca-4eeece09d7c3@linaro.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2022-05-10 at 18:57 +0800, Krzysztof Kozlowski wrote: > On 10/05/2022 12:37, Chen-Yu Tsai wrote: > > > Use a generic node name, as Devicetree spec asks: > > > "The name of a node should be somewhat generic, reflecting the > > > function > > > of the device and not its precise programming > > > > > > model. If appropriate, the name should be one of the following > > > choices:" > > > > > > I proposed dma-controller, but feel free to find better generic > > > node name. > > > > dma-controller is covered by dma-controller.yaml, which references > > dma-common.yaml in its entirety, so I don't think that would work. > > > > What about "blitter"? I think that is a generic term that is/was > > commonly > > used with display hardware and sort of describes the function of > > the RDMA > > & WDMA blocks, and if only one side is memory and the other is the > > display > > pipeline. > > Sure, sounds fine! > > > Best regards, > Krzysztof Hello Krzysztof and Chen-Yu, Nancy thinks our IP is more like rdma. Blitter may be somthing for reading memory and writing to another memory, but we don't have the function of writing memory. If we use rdma, is it ok? BRs, Rex