From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shreyas NC Subject: [PATCH v2 0/6] soundwire: Add multi link support Date: Tue, 12 Jun 2018 16:23:38 +0530 Message-ID: <1528800824-696-1-git-send-email-shreyas.nc@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by alsa0.perex.cz (Postfix) with ESMTP id 33A04267252 for ; Tue, 12 Jun 2018 12:55:21 +0200 (CEST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: patches.audio@intel.com, gregkh@linuxfoundation.org, pierre-louis.bossart@linux.intel.com, vkoul@kernel.org, Shreyas NC , sanyog.r.kale@intel.com List-Id: alsa-devel@alsa-project.org Currently, in the SoundWire subsystem, the concept of stream is limited to a Master and one or more Slaves(Codecs). This series aims to add support for multiple Master(s) sharing the same reference clock and synchronized in the hardware. This patch series adds: - Helpers to lock bus instances part of the stream - Boiler plate conversion of code to support a list of Master runtime - Support multi link bank switch to support synchronization between multiple masters - Add Intel platform ops for pre/post bank switch Changes in v2: - Add the example in Documentation as pointed out by Vinod - As Pierre suggested, added more description to the sdw_acquire_bus_lock() and sdw_release_bus_lock() API and sdw_stream_runtime data structure. Sanyog Kale (2): Documentation: soundwire: Add documentation for Multi link soundwire: Add support to lock across bus instances Shreyas NC (3): soundwire: Initialize completion for defer messages soundwire: Add support for multilink bank switch soundwire: intel: Add pre/post bank switch ops Vinod Koul (1): soundwire: Handle multiple master instances in a stream Documentation/driver-api/soundwire/stream.rst | 29 +- drivers/soundwire/bus.c | 1 + drivers/soundwire/bus.h | 4 + drivers/soundwire/intel.c | 54 ++++ drivers/soundwire/stream.c | 441 ++++++++++++++++++-------- include/linux/soundwire/sdw.h | 8 +- 6 files changed, 407 insertions(+), 130 deletions(-) -- 2.7.4