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=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 CAA2BC3815B for ; Thu, 16 Apr 2020 15:45:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 95FE120732 for ; Thu, 16 Apr 2020 15:45:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587051951; bh=1c08XC1B6rSTFGUlvN4qhU6O/IY9IRqHTGMA58kStOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lvqXWtksp4tdb5nefzRAPqrrqFnIdbbtP/B4qp/aBdUNGrfl9wRHOfIUrFxAXHIQw fcMljm7Fe5ith9BLpRLDjHF1wICCGAvUZ53e3vMNsmUHoZuxQl0IKU8ltSkW6q2U3K iivVHe+hRZZM6AMpaGqzD1g3a0TiPQka7rvbnrhw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2635052AbgDPPpu (ORCPT ); Thu, 16 Apr 2020 11:45:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:46810 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2897050AbgDPNfC (ORCPT ); Thu, 16 Apr 2020 09:35:02 -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 20328208E4; Thu, 16 Apr 2020 13:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587044101; bh=1c08XC1B6rSTFGUlvN4qhU6O/IY9IRqHTGMA58kStOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vh3G5Dzt78DsU45Wv2O+t3PyCbrD/rOsXv5clem2E3TAGfGwC4AtcP7xvZZ84NmuR 7mR8caH/+U9HghuQu//Hon42G/iDQP/CbKfxMQ/rS7B+rwMlFp4wtgZl6yWCOYZqsz Jc6tvJ26Z47piW1MtVRfympzIHBpnqNGEuIhVuu8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gyeongtaek Lee , Mark Brown Subject: [PATCH 5.5 082/257] ASoC: dapm: connect virtual mux with default value Date: Thu, 16 Apr 2020 15:22:13 +0200 Message-Id: <20200416131336.200776073@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200416131325.891903893@linuxfoundation.org> References: <20200416131325.891903893@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 @@ -802,7 +802,13 @@ 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; } }