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 5EBF7C433FE for ; Tue, 15 Mar 2022 09:13:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346446AbiCOJOg (ORCPT ); Tue, 15 Mar 2022 05:14:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236128AbiCOJOe (ORCPT ); Tue, 15 Mar 2022 05:14:34 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1852932EFD; Tue, 15 Mar 2022 02:13:23 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: kholk11) with ESMTPSA id 446551F4362D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1647335601; bh=WTLghMeeqz2nQSPwBowI6r0QAX6EDrZ3m29sr4Yi4ho=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Oi1ZZjAsd6/qOeKtUyGx8/ixu79ia/qbH4VoFPcFMWoVY8pV3Zu1zwIR6VA5csjQr uo5jscAUKtBxJK3aG8FzWinOow4i6RTQvAv4wgC5FapKTvFZcuIfNl8TpP5tgxz+9Y k6+mdae2ApV4i2I6leHG0pdaCjatXJtZvvjxdxaP3oZwpbTpw53iQooCjAjOZ7KwHk nUbK4EQlturOL/GHmBKbZAoUUHsSFBmkD5oRApjljgDarEHwenrHVFpcs+US7S8c/2 Z9V8aBKwyBx8sWPQi3iYjvshI+oohpw2yDy6xFochfp+r++vuU7s+dnYSNXyYNDghv Fp8lwNjMQ9g1A== Message-ID: <5fb2d5bc-9951-86f7-d825-8dae9b7c7698@collabora.com> Date: Tue, 15 Mar 2022 10:13:17 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [PATCH v13 6/6] soc: mediatek: mutex: add functions that operate registers by CMDQ Content-Language: en-US To: Moudy Ho , Mauro Carvalho Chehab , Rob Herring , Matthias Brugger , Hans Verkuil , Jernej Skrabec Cc: Chun-Kuang Hu , Geert Uytterhoeven , Rob Landley , Laurent Pinchart , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Alexandre Courbot , tfiga@chromium.org, drinkcat@chromium.org, pihsun@chromium.org, hsinyi@google.com, Maoguang Meng , daoyuan huang , Ping-Hsun Wu , menghui.lin@mediatek.com, sj.huang@mediatek.com, allen-kh.cheng@mediatek.com, randy.wu@mediatek.com, jason-jh.lin@mediatek.com, roy-cw.yeh@mediatek.com, river.cheng@mediatek.com, srv_heupstream@mediatek.com, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220315061031.21642-1-moudy.ho@mediatek.com> <20220315061031.21642-7-moudy.ho@mediatek.com> From: AngeloGioacchino Del Regno In-Reply-To: <20220315061031.21642-7-moudy.ho@mediatek.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 15/03/22 07:10, Moudy Ho ha scritto: > Due to hardware limitations, MDP3 is necessary to enable MUTEX in > each frame for SOF triggering and cooperate with CMDQ control to > reduce the amount of interrupts generated(also, reduce frame latency). > > In response to the above situation, a new interface > "mtk_mutex_enable_by_cmdq" has been added to achieve the purpose. > > Signed-off-by: Moudy Ho Reviewed-by: AngeloGioacchino Del Regno