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=-13.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 F161CC4338F for ; Mon, 26 Jul 2021 01:24:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBF286044F for ; Mon, 26 Jul 2021 01:24:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231337AbhGZAnr (ORCPT ); Sun, 25 Jul 2021 20:43:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:36520 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230152AbhGZAnq (ORCPT ); Sun, 25 Jul 2021 20:43:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B15C360C41; Mon, 26 Jul 2021 01:24:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627262656; bh=QvcjzfCS0Eqk4twCKVhgTFa4Bf6DevWQt9Q9RUKD9UE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XZZPYDjh02jo8RpvYGOb8gne/5M1xA7gIlzQT6NxXBR5g7qApHEHSvniT+zgVLpJM yeOPBGTPgRPdEULchizYjCi+6AcFkoH8niYDebu+hylkfcJA99RmWTnjLkugfsfZAg aTs6GKjMlXWR74HhtJuh+NbTtcZ1NVYWohoK+z3nKb2DM8GwDUYevIRitE8EoL9rB3 eWZSjg+egoCNltkRmInPRuYsUKnxHD+jgjEKnFy/bzKHAAfJr+2bTEZDZjJHCONg/t FzqWwB4r9Q7Fj2yOXkfddjM1cml8+VHt1fhrA69JhHSGxwI49XFAO3iymyifp3JusL 2SYwALJMXRJBQ== Date: Mon, 26 Jul 2021 09:24:09 +0800 From: Shawn Guo To: Daniel Baluta Cc: robh+dt@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, ping.bai@nxp.com, qiangqing.zhang@nxp.com, alice.guo@nxp.com, yibin.gong@nxp.com, linux-imx@nxp.com, peng.fan@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, daniel.baluta@gmail.com, linux-kernel@vger.kernel.org, Daniel Baluta Subject: Re: [PATCH v3] arm64: dts: imx8mp: Add dsp node Message-ID: <20210726012408.GD5901@dragon> References: <20210723110540.1332145-1-daniel.baluta@oss.nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210723110540.1332145-1-daniel.baluta@oss.nxp.com> User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 23, 2021 at 02:05:40PM +0300, Daniel Baluta wrote: > From: Daniel Baluta > > i.MX8 MPlus SoC integrates Cadence HIFI4 DSP. This core runs either a > custom firmware or the open source SOF firmware [1] > > DSP device is handled by SOF OF driver found in > sound/soc/sof/sof-of-dev.c > > Notice that the DSP node makes use of: > - dsp_reserved, a reserved memory region for various Audio > resources (e.g firmware loading, audio buffers, etc). > - Messaging Unit (mu2) for passing notifications betweem ARM > core and DSP. > > [1] https://thesofproject.github.io/latest/platforms/index.html > Signed-off-by: Daniel Baluta Applied, thanks!