From patchwork Mon Apr 16 11:38:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 133449 Delivered-To: patch@linaro.org Received: by 10.46.84.18 with SMTP id i18csp3463894ljb; Mon, 16 Apr 2018 04:38:53 -0700 (PDT) X-Google-Smtp-Source: AIpwx4/bYUZgehjrcV94jcMlta99LgeOcgNREfpU396Uju4iQb7jFgWTEBK1FBx+YK9fSZgJaaGJ X-Received: by 10.223.196.195 with SMTP id o3mr5272934wrf.108.1523878733426; Mon, 16 Apr 2018 04:38:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523878733; cv=none; d=google.com; s=arc-20160816; b=iLlx9hJWIv9M8EZyiLPqUfkAZcOjRD22IaKw4m7C6M54JJbHMaQMtagS/sxGgKNujo 7vsjXz2ewRbdfgokeuluRSqEukJFEYte8NW8bg9i3jjzCjOF2qKBtFIufgS9NX70iIvZ 1QQ/XQ/U2Epclc5rJEzoH1pcZF1sOEascTaJi7141m+U/TdB20OOyzY2mc/xU2rT8Zfc EGb3Fv6eAzPcyj8xWARi1fqWwPpRMpBt2CcRq3Mh/Bmjncl+JeQWf36HUHIsg2101rsv THgN646AWT6BSKQ5s7gqh1p2ZJyXJ8NpmWPK6Ln+g4z3Dl6Mmff8MO+KnjnVCt+7hYgR ug/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:cc:date:message-id:in-reply-to:to:from :dkim-signature:delivered-to:arc-authentication-results; bh=aUi3oDk7GPLfLVTIpClvfdkcrt7rS8x4sVyj9r89kww=; b=u5CCphtkg1hd6nDNF6Hnl1zKtltQ+ubz1fOnxQpqVOVbyt7b6egOLfi08uEA0xL40F p4V/7YoNtkO6FsBSWOn0YkHivlx9f7FJuMT7xYKvq0KAvIzutqph6wwiyoA+93Ph5sxJ lBWnVeKBgyZpAjSfM+5as61/e70xTjqP2PMXgG2/ihq3962cX9L/LXYFvIw0i+S32gvf kR1PgZa3mqgkRqkMeBB0QnrEoJY7Jc51XYPtSomY7W9jtgCeY/NbqF/yusYxZ/rajZ4K EkmJ7f8KGUyW/1sKRRr3BI+zleyiuQ1lEQb72sNDxTe5JrUVYNQoBcuYc1+e7Oo4/D28 NmUQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@sirena.org.uk header.s=20170815-heliosphere header.b=MASieIDT; spf=pass (google.com: domain of alsa-devel-bounces@alsa-project.org designates 77.48.224.243 as permitted sender) smtp.mailfrom=alsa-devel-bounces@alsa-project.org Return-Path: Received: from alsa0.perex.cz (alsa0.perex.cz. [77.48.224.243]) by mx.google.com with ESMTP id e16si3349292wma.110.2018.04.16.04.38.53; Mon, 16 Apr 2018 04:38:53 -0700 (PDT) Received-SPF: pass (google.com: domain of alsa-devel-bounces@alsa-project.org designates 77.48.224.243 as permitted sender) client-ip=77.48.224.243; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@sirena.org.uk header.s=20170815-heliosphere header.b=MASieIDT; spf=pass (google.com: domain of alsa-devel-bounces@alsa-project.org designates 77.48.224.243 as permitted sender) smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 754B92673C7; Mon, 16 Apr 2018 13:38:51 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 6D4EA2673CB; Mon, 16 Apr 2018 13:38:49 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail1.perex.cz X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=disabled version=3.4.0 Received: from heliosphere.sirena.org.uk (heliosphere.sirena.org.uk [172.104.155.198]) by alsa0.perex.cz (Postfix) with ESMTP id BD4472673C4 for ; Mon, 16 Apr 2018 13:38:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=CpqvooLGy56sb31nxuQLCDc+TRaVB/qI0z/skAsJBK8=; b=MASieIDT0Ldx FFJ/wukL585Ec1YpeyS82LxGmd5F35aB6DtoBhmhf0naluSj7MtdXtJRH9d6wPuo/SaSXOurQ8kHn 0LHBnhA6iWev7dGUp9aub79/pp/QYyoaBmXoZPFcS+mM9x/kIttuqfBOc1wVM7GcvMUb38QwXvE9n yHtSI=; Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by heliosphere.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1f82T5-0005cJ-9U; Mon, 16 Apr 2018 11:38:43 +0000 Received: from broonie by debutante with local (Exim 4.90_1) (envelope-from ) id 1f82T4-0007R5-Qa; Mon, 16 Apr 2018 12:38:42 +0100 From: Mark Brown To: Kuninori Morimoto In-Reply-To: <87r2ngc7k1.wl%kuninori.morimoto.gx@renesas.com> Message-Id: Date: Mon, 16 Apr 2018 12:38:42 +0100 Cc: alsa-devel@alsa-project.org, Mark Brown , Hiromitsu Yamasaki Subject: [alsa-devel] Applied "ASoC: rsnd: ssi: wait maximum 5ms for status check" to the asoc tree X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org The patch ASoC: rsnd: ssi: wait maximum 5ms for status check has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 3fd391fb7c97ab6dfb9e44926a265566d1d1ab79 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 16 Apr 2018 00:38:13 +0000 Subject: [PATCH] ASoC: rsnd: ssi: wait maximum 5ms for status check It is waiting udelay(50) x 1024 (= 50ms) for status check in worst case, but it is overkill. And we shouldn't use udelay() for 50us (linux/Documentation/timers/timers-howto.txt) Waiting maximum udelay(5) x 1024 (= 5ms) is very enough for status check. This patch fixes these issue. Reported-by: Hiromitsu Yamasaki Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.17.0 _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 31ffe3f0e163..9538f76f8e20 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -171,7 +171,7 @@ static void rsnd_ssi_status_check(struct rsnd_mod *mod, if (status & bit) return; - udelay(50); + udelay(5); } dev_warn(dev, "%s[%d] status check failed\n",