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 8FBE3C2BB55 for ; Thu, 16 Apr 2020 14:07:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 633D32076D for ; Thu, 16 Apr 2020 14:07:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587046070; bh=1c08XC1B6rSTFGUlvN4qhU6O/IY9IRqHTGMA58kStOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DYVM5mpmI+VBC4oydxSWF5iYA5MxksLo584voCK1Ixw2+qGzgri3bqC1e3ePEOQsD QujeKNlkR9wvQr0gRtCNVNGwLZGudFIEszw4jvwFeaUsQ504eAY+iaIgDtNiVOP0yT k6mRjCi6bYQB+ceZpvf6kNvTDqIzKbOr/9lNqDxk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731859AbgDPOHs (ORCPT ); Thu, 16 Apr 2020 10:07:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:58600 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2898484AbgDPNpL (ORCPT ); Thu, 16 Apr 2020 09:45:11 -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 602C720732; Thu, 16 Apr 2020 13:45:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587044710; bh=1c08XC1B6rSTFGUlvN4qhU6O/IY9IRqHTGMA58kStOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ohie3RPSQ61ivJx85zBI8rutV/fJsA+WcqYevpnDjaSoAY6DV1BH0zPFtFtAmkk6/ GGlbeHKYkA8CYIIg7iVu8omqHHVphZSn/YdF/ktLqC3CkMuF+/WwjEzstth0vBnU+A Kx3LIhl4w7wE8izg2vBh/oUkTcS4LWd2F48abNQA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gyeongtaek Lee , Mark Brown Subject: [PATCH 5.4 070/232] ASoC: dapm: connect virtual mux with default value Date: Thu, 16 Apr 2020 15:22:44 +0200 Message-Id: <20200416131324.125466105@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200416131316.640996080@linuxfoundation.org> References: <20200416131316.640996080@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; } }