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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 2F5DDC2BB85 for ; Thu, 16 Apr 2020 13:27:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 03B8221D82 for ; Thu, 16 Apr 2020 13:27:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587043655; bh=plcbiY9bqamDGSPKaGgFotz/H0XVxLwbhltRpzxUrCc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VvZqEKDFPMyNEfuFOgSi0e8Bc7y4N+dLl+aT7JDFvHamz44xlvQNSZA629kN5JyHD qhsRSKk5pTSKFUAvJDp4wTwhXiTr9oaO4pl3W1F8hbbiWrWrwJYgW0rOUo+2SDCtZ1 di2TT8MY5zHuOVfO0LRwpKlxRrsd/LGmZJgPMFbE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2895522AbgDPN1d (ORCPT ); Thu, 16 Apr 2020 09:27:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:36016 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2895515AbgDPN1c (ORCPT ); Thu, 16 Apr 2020 09:27:32 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 79A14221F4; Thu, 16 Apr 2020 13:27:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587043651; bh=plcbiY9bqamDGSPKaGgFotz/H0XVxLwbhltRpzxUrCc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vh/bCgdquOKArxbgpKsmFP9I4d1DNg2tWCJ+WQCB3FgiTctwEnvC1Ivko6yQ0Rkgq 2XVFMAzR0lNpPJgrDukuw8vjpgqSEFw/Gse1fe5734E/tjgmfmvjH9DUIFD4/eh6i2 Ez/x+MhZjGY/XY/aUqO5Ffu9WmtLU9MiBBTuxGxM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gyeongtaek Lee , Mark Brown Subject: [PATCH 4.19 045/146] ASoC: dapm: connect virtual mux with default value Date: Thu, 16 Apr 2020 15:23:06 +0200 Message-Id: <20200416131248.943645694@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200416131242.353444678@linuxfoundation.org> References: <20200416131242.353444678@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: 이경택 commit 3bbbb7728fc853d71dbce4073fef9f281fbfb4dd upstream. Since a virtual mixer has no backing registers to decide which path to connect, it will try to match with initial state. This is to ensure that the default mixer choice will be correctly powered up during initialization. Invert flag is used to select initial state of the virtual switch. Since actual hardware can't be disconnected by virtual switch, connected is better choice as initial state in many cases. Signed-off-by: Gyeongtaek Lee Link: https://lore.kernel.org/r/01a301d60731$b724ea10$256ebe30$@samsung.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/soc-dapm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -792,7 +792,13 @@ static void dapm_set_mixer_path_status(s val = max - val; p->connect = !!val; } else { - p->connect = 0; + /* since a virtual mixer has no backing registers to + * decide which path to connect, it will try to match + * with initial state. This is to ensure + * that the default mixer choice will be + * correctly powered up during initialization. + */ + p->connect = invert; } }