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 558C2C433F5 for ; Thu, 13 Jan 2022 18:40:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231187AbiAMSkh (ORCPT ); Thu, 13 Jan 2022 13:40:37 -0500 Received: from mga07.intel.com ([134.134.136.100]:1868 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231186AbiAMSkg (ORCPT ); Thu, 13 Jan 2022 13:40:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1642099236; x=1673635236; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=qqcMZ1IZfmNOmWmFj956qQSZ+kRWR/NKW/CT4jJutuk=; b=hi6QnFa8+T5GnyqHTE/8K4JZI9+B2bn68bEMbrhYOrEBD+0Ujudist8X pzCzFBYhbr2DE0WTB9giPCKbRxwgBsmPq+9aC1OHhHQmhm1VMCBaDntLO iYXmAaYBODkDgOwei+eGFhrO7nf+aRB0I+SKbsApg7JfjVpeFjhhrqDYl Qqrple8qi3FUvh16wbZ5ynr3NcCZjUNapUw5vUHOkMm5QRvlD0DY6vpmD WfNrvKzid0HN/n0Fw/eL7ozJxCxV2Lo9++MS24luUujsAJI6mb0jOeqOH OCh0D37lDA0A0n6QeLbpG8r2+skvIdRpm6T5ZGZ5njDIfH7N0QcaZFd0T A==; X-IronPort-AV: E=McAfee;i="6200,9189,10226"; a="307431633" X-IronPort-AV: E=Sophos;i="5.88,286,1635231600"; d="scan'208";a="307431633" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jan 2022 10:40:36 -0800 X-IronPort-AV: E=Sophos;i="5.88,286,1635231600"; d="scan'208";a="620700515" Received: from ypchen-mobl.amr.corp.intel.com (HELO [10.212.66.70]) ([10.212.66.70]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jan 2022 10:40:34 -0800 Subject: Re: [PATCH v3 1/1] firmware: mediatek: add adsp ipc protocol interface To: "allen-kh.cheng" , Matthias Brugger , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Linux-ALSA , Kai Vehmanen , cujomalainey@google.com, Kevin Hilman , Takashi Iwai , Liam Girdwood , Project_Global_Chrome_Upstream_Group@mediatek.com, tzungbi@google.com, linux-mediatek@lists.infradead.org, Ranjani Sridharan , Daniel Baluta , linux-kernel@vger.kernel.org, sound-open-firmware@alsa-project.org References: <20220113082234.29013-1-allen-kh.cheng@mediatek.com> <20220113082234.29013-2-allen-kh.cheng@mediatek.com> From: Pierre-Louis Bossart Message-ID: <32e116f5-7b71-2fe0-ad43-3fbc71a651a5@linux.intel.com> Date: Thu, 13 Jan 2022 12:40:33 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20220113082234.29013-2-allen-kh.cheng@mediatek.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 1/13/22 2:22 AM, allen-kh.cheng wrote: > From: Allen-KH Cheng > > Some of mediatek processors contain > the Tensilica HiFix DSP for audio processing. > > The communication between Host CPU and DSP firmware is > taking place using a shared memory area for message passing. > > ADSP IPC protocol offers (send/recv) interfaces using > mediatek-mailbox APIs. > > We use two mbox channels to implement a request-reply protocol. > > Reviewed-by: Curtis Malainey > Reviewed-by: Tzung-Bi Shih > Signed-off-by: Allen-KH Cheng Reviewed-by: Pierre-Louis Bossart