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 73CB3C55189 for ; Wed, 22 Apr 2020 10:01:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 472892077D for ; Wed, 22 Apr 2020 10:01:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587549696; bh=0DWUuwUkdrloEV0hFiwpBzpoo2GAJjhrcF4xgwMpidY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=qN+lxy7ODi9oPhay746sUrgec8wI0KUZcJiIm/T6Vl5n05rNWUlMHCpGKWAH7EsO1 xfdpiwyGghx1a17pkmGefF2HERktDHPZYNJDj9mxK8wACGiYSXD0Cf/5vNX4n2Wh4i ZvNNamvwvh4p/uNkK6zx0rAqrpDtwtEEfWA7y+2Y= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726837AbgDVKBf (ORCPT ); Wed, 22 Apr 2020 06:01:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:49948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726823AbgDVKB3 (ORCPT ); Wed, 22 Apr 2020 06:01:29 -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 BFF052076C; Wed, 22 Apr 2020 10:01:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587549689; bh=0DWUuwUkdrloEV0hFiwpBzpoo2GAJjhrcF4xgwMpidY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JlMYnqE1P+BecVFF2YoUJOf1LXQUArwUf+JwwllEKbUIX/+0BL3ckZkt+0pPSy7HL 3rjHnXmPwsolry1Y6hEIfugCAKK76mVa8vDnFyM+yhFDlREkP2X30s56F4149f5iBS 27ggJ8qSoama3HMLZCpjx9TmWLEhf7nDHKkhFMhk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gyeongtaek Lee , Mark Brown Subject: [PATCH 4.4 015/100] ASoC: dapm: connect virtual mux with default value Date: Wed, 22 Apr 2020 11:55:45 +0200 Message-Id: <20200422095025.670534350@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200422095022.476101261@linuxfoundation.org> References: <20200422095022.476101261@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 @@ -751,7 +751,13 @@ 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; } }