From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from resqmta-po-08v.sys.comcast.net ([96.114.154.167]:35127 "EHLO resqmta-po-08v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753048AbcEXX7S (ORCPT ); Tue, 24 May 2016 19:59:18 -0400 From: Shuah Khan To: mchehab@osg.samsung.com, laurent.pinchart@ideasonboard.com, sakari.ailus@iki.fi, hans.verkuil@cisco.com, chehabrafael@gmail.com, javier@osg.samsung.com, inki.dae@samsung.com, g.liakhovetski@gmx.de, jh1009.sung@samsung.com Cc: Shuah Khan , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] Media Device Allocator API Date: Tue, 24 May 2016 17:39:46 -0600 Message-Id: Sender: linux-media-owner@vger.kernel.org List-ID: Media Device Allocator API to allows multiple drivers share a media device. Using this API, drivers can allocate a media device with the shared struct device as the key. Once the media device is allocated by a driver, other drivers can get a reference to it. The media device is released when all the references are released. This patch series has been tested with au0828 and snd-usb-audio drivers. snd-us-audio patch isn't included in this series. Once this patch series is reviews and gets a stable state, I will send out the snd-usb-audio patch. Changes since Patch v1 series: (based on Hans Virkuil's review) - Removed media_device_get() and media_device_allocate(). These are unnecessary. - media_device_usb_allocate() holds media_device_lock to do allocate and initialize the media device. - Changed media_device_put() to media_device_delete() for symmetry with media_device_*_allocate(). - Dropped media_device_unregister_put(). au0828 calls media_device_delete() instead. Shuah Khan (2): media: Media Device Allocator API media: change au0828 to use Media Device Allocator API drivers/media/Makefile | 3 +- drivers/media/media-dev-allocator.c | 120 +++++++++++++++++++++++++++++++++ drivers/media/usb/au0828/au0828-core.c | 12 ++-- drivers/media/usb/au0828/au0828.h | 1 + include/media/media-dev-allocator.h | 85 +++++++++++++++++++++++ 5 files changed, 212 insertions(+), 9 deletions(-) create mode 100644 drivers/media/media-dev-allocator.c create mode 100644 include/media/media-dev-allocator.h -- 2.7.4