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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E86EC04AA7 for ; Wed, 20 Sep 2023 16:34:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234882AbjITQeN (ORCPT ); Wed, 20 Sep 2023 12:34:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234773AbjITQeH (ORCPT ); Wed, 20 Sep 2023 12:34:07 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D782DE5 for ; Wed, 20 Sep 2023 09:34:00 -0700 (PDT) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id 38KFt6MX023727; Wed, 20 Sep 2023 11:33:38 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding:content-type; s=PODMain02222019; bh=/ BLxOc/tkBmcLEyGBDmhNnSyPG+SVhl9atiXF3hiU6g=; b=KfC4n0lHvxP+ihzuD IkYtwTBsPjnPqZMaHby2Byy6Ny1bZhHhNPBb/f2V8/mS9y3i5OEJzAI97GpRFu2Q E4oaJ4KFn8BWUHdsC0itH5kOLNwSmmN/fvATnd0Ngaxm1mJfnKfNVY+O72ThkLVT YyM2A+BXkT/AsWxbKshA0KnqZ4dV2L3C0F3VANiiSzfjk1zRkq7M7vonBlQBSrXs 9oXHPElq5MkRyE8xSAlN7M9tLvBp9/ihRQfsLDQNrBY/xyrMpq2oE9UM+uhOxgC5 bt0t6e/MrUpD7A6/Bq50abi2ZozhQLxdgYSdui3kA0Ey8DCBWFT1rwowLtG2oley 5Syqw== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3t58shvnd5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 20 Sep 2023 11:33:38 -0500 (CDT) Received: from ediex02.ad.cirrus.com (198.61.84.81) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.37; Wed, 20 Sep 2023 17:33:36 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by anon-ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server id 15.2.1118.37 via Frontend Transport; Wed, 20 Sep 2023 17:33:36 +0100 Received: from sbinding-cirrus-dsktp2.ad.cirrus.com (unknown [198.90.238.135]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 5D9FC458; Wed, 20 Sep 2023 16:33:36 +0000 (UTC) From: Stefan Binding To: Jaroslav Kysela , Takashi Iwai CC: , , , Stefan Binding Subject: [PATCH v4 0/4] Support mute notifications for CS35L41 HDA Date: Wed, 20 Sep 2023 16:54:46 +0100 Message-ID: <20230920155450.576287-1-sbinding@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: uF6gvtROUZ6B4XvAkqDpBQLy8315B14s X-Proofpoint-ORIG-GUID: uF6gvtROUZ6B4XvAkqDpBQLy8315B14s X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some systems use a special keyboard shortcut to mute speaker audio. On systems using CS35L41 HDA which have this shortcut, add a mechanism which uses ACPI notifications to determine when the shortcut is pressed, and then mute the amps inside the driver. Since this is not a normal mute mechanism, it does not go through userspace. To allow userspace to be able to track this special state, add an ALSA control which tracks the state of this forced mute Changes since v2: - Fixed compile issue when CONFIG_ACPI is missing Changes since v3: - Split first patch into 3 separate patches - Ensure all acpi code is protected by check for CONFIG_ACPI in realtek driver Stefan Binding (4): ALSA: hda: cs35l41: Add notification support into component binding ALSA: hda/realtek: Support ACPI Notification framework via component binding ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA ALSA: hda: cs35l41: Add read-only ALSA control for forced mute sound/pci/hda/cs35l41_hda.c | 132 ++++++++++++++++++++++++++++++---- sound/pci/hda/cs35l41_hda.h | 3 + sound/pci/hda/hda_component.h | 4 ++ sound/pci/hda/patch_realtek.c | 83 ++++++++++++++++++++- 4 files changed, 208 insertions(+), 14 deletions(-) -- 2.34.1