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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C7EFC5B543 for ; Tue, 27 May 2025 19:28:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vDO6nFUTShVTRI2iq8gUfvNHc1/68/dnTMcWjAWG1oE=; b=1+kyI9UsLv8fao58GoV+PZUrtT mVanLw5FLZBlhNbr13tP0BM4TVlrcROHyW83ggvrWzg11xA/xGmiDEunYKYuviw5gOwX0j6sXix60 rT2SNW0xCrpHtiwk6YZp5DvfAIWBsyJl60yvO3B8GduJ9BHnOL/3EO1lsnojPuVIxE4eG+2a085Ad VIDg/f+b/LQzXpWJRcw6Vdlh/0W4/23T3bZcJ1bhRqRFwnBSvgEkp6Y9Aji1IsIRmL9nWWHYn3/Dz A0rLiE+pFXLs8EmwVgIymHz+1gfJE9XjqtwoXpZchxZHoXpaP8VTIDIVjXbXvGws2wjEZR41MRPmd vyRUCPrg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJzyj-0000000BQhK-1h9t; Tue, 27 May 2025 19:28:49 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJzwa-0000000BQUr-2Mep for linux-arm-kernel@lists.infradead.org; Tue, 27 May 2025 19:26:37 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 6AA7AA4F228; Tue, 27 May 2025 19:26:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE022C4CEE9; Tue, 27 May 2025 19:26:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748373995; bh=8b7Ot1h0kWRufg9jq3azIqDVbfLb610Zg17izxeq5mE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lbWgiM8BThAq1FK9PnBWXw5Ea3jqTSikytUKVSl2TLgIvZiMebu1I70wy7sHvHuV7 Mx/asaNJz8aXte7R/VQGO8OmA0QEHjtpQFGO49Maw23fNLD9mlu4DFAzMgV4I59AAb IrD8YsHZJjl7I19eX2M46MssS503LfabJ0eWIMs5JRxImghckhaDwOZqrsbOI/pMcm 6C/wZe6lWOWaDmLT1mXeTBqbVocwP1SCkqJc8BT8PdsIkF7GOvXfztLu+pIyaLzC4+ fYJpolT/yc9BItvVIXwfUO+pOxtQag+8D6zR40aLbQfp73D5JycanCY7u7jvq4bHkP 6yjMeVfux3lLA== Date: Tue, 27 May 2025 14:26:33 -0500 From: Rob Herring To: Conor Dooley Cc: Radhey Shyam Pandey , gregkh@linuxfoundation.org, krzk+dt@kernel.org, conor+dt@kernel.org, michal.simek@amd.com, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, git@amd.com Subject: Re: [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent Message-ID: <20250527192633.GA1084631-robh@kernel.org> References: <1747401516-286356-1-git-send-email-radhey.shyam.pandey@amd.com> <20250516-exclusion-suffocate-94a1c87c1262@spud> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250516-exclusion-suffocate-94a1c87c1262@spud> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250527_122636_667435_24AB14F0 X-CRM114-Status: UNSURE ( 9.30 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 16, 2025 at 03:16:02PM +0100, Conor Dooley wrote: > On Fri, May 16, 2025 at 06:48:36PM +0530, Radhey Shyam Pandey wrote: > > On Versal Gen 2 SoC the LPD USB DMA controller is coherent with the CPU > > so allow specifying the information. > > Sounds like it should actually be marked required on this platform, no? Should still work without it, just more overhead of unnecessary cache flushes. Rob