From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB92F33AD85; Tue, 1 Sep 2026 03:03:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788231804; cv=none; b=KZv2ZPTFuXame0zxlqo/wBViHk47Pn/K79qjpIK4FLEMU+gH9pyvEBMat/BAW3MFVgWZvAbqNOeBzjyliFmTjGR4Z+WSSQd/hafhfyOS7jEqhIMpU5R3nAy31kviRTahk6a4AKleB/SIXS1g+C2Iv1hDrxlBzalKfqHvaLy183k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788231804; c=relaxed/simple; bh=Vh9yn8AOoLZrw8IExJUFV06Tkc6vhee21CB9CIKV1XE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=rPkrua8KmzhlV22T5nqPUSk4N5CMxsrlXKsF+yuoHa/R4cQoMeitWgpkRtxpY6tYCTPwYaX+GrV0tActRe9MYpcp5Tt3GmldhOYvp3pInhqHg8AA2soiFtbdZ+seWdh3UKSX3I4E/y1yseXz3Q5hyGccQNbWCResfmF0HAqKE1k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=MrHUfQJr; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="MrHUfQJr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788231802; x=1819767802; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Vh9yn8AOoLZrw8IExJUFV06Tkc6vhee21CB9CIKV1XE=; b=MrHUfQJrsuvPNvacLVmDP/2+wbCiVpeRFHlBlQdkpjCIk8s226ORD6AO oQHhuzTegi08E/nzfvhJFYABC/Vks/JYklSbYkD7NS5sbLBcnDt+dHBal YWmSyzs6TUq4/mLMAVbMZI0R6pfRPZtSPoRBDaCopq+n27EsBHEJXQDwk pJMy7/ah0DCU0YLXxNxf9uGZ/xL7uLMXxTAFKNoxZglFZxyHNrSiddMCZ JB6yAod8cbZmKXGpUacX/yk8V3dV5dJ7z1tjut5IWoE5ZWGNsMuVSF/a7 zbYz2jFOlODLgmjLpJ3DtiE5DwLc4UUkAijeXmc0znor2TFIEde9UsVVA w==; X-CSE-ConnectionGUID: 4swJl7Z4SqiRGHeavUAu/w== X-CSE-MsgGUID: 6BGUI/dgS2uQY9YEM9zZ0Q== X-IronPort-AV: E=McAfee;i="6800,10657,11892"; a="87785633" X-IronPort-AV: E=Sophos;i="6.25,255,1779174000"; d="scan'208";a="87785633" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2026 20:03:21 -0700 X-CSE-ConnectionGUID: ytU1b5bcT1OUUQyV9Qla5A== X-CSE-MsgGUID: qqTfeFnlQGWtpCnP62+IBQ== X-ExtLoop1: 1 Received: from yungchua-desk.itwn.intel.com ([10.227.8.136]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2026 20:03:19 -0700 From: Bard Liao To: linux-sound@vger.kernel.org, vkoul@kernel.org Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.dev, peter.ujfalusi@linux.intel.com, bard.liao@intel.com Subject: [PATCH v2 0/3] soundwire: bus: re-enable CLOCK_STOP_MODE1 support Date: Tue, 1 Sep 2026 11:03:08 +0800 Message-ID: <20260901030311.232823-1-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add CLOCK_STOP_MODE1 back to allow the peripheral to utilize it when the clock is stopped. This mode is designed for power-sensitive devices as it enables a deeper power-saving state, although it does not retain the peripheral's state during the clock stop. v2: - check slave->probed before looking at the driver to avoid NULL pointer dereference. - add wake_enable parameter to stop_bus ops to stop the clock but keep the bus unwakeable during system suspend. Bard Liao (3): soundwire: bus: add CLOCK_STOP_MODE1 support back soundwire: Intel: add wake_enable parameter to stop_bus ops soundwire: Intel: stop sdw clock in system suspend drivers/soundwire/bus.c | 54 +++++++++++++++++----------- drivers/soundwire/intel.h | 6 ++-- drivers/soundwire/intel_auxdevice.c | 7 ++-- drivers/soundwire/intel_bus_common.c | 8 ++--- include/linux/soundwire/sdw.h | 4 +++ include/linux/soundwire/sdw_intel.h | 2 +- 6 files changed, 50 insertions(+), 31 deletions(-) -- 2.43.0