linux-kernel - Re: [PATCH v2 0/2] Media Device Allocator API

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Date:	Tue, 28 Jun 2016 13:56:54 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	mchehab@....samsung.com, hans.verkuil@...co.com,
	inki.dae@...sung.com, g.liakhovetski@....de
Cc:	laurent.pinchart@...asonboard.com, sakari.ailus@....fi,
	chehabrafael@...il.com, javier@....samsung.com,
	jh1009.sung@...sung.com, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org, Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH v2 0/2] Media Device Allocator API

On 05/24/2016 05:39 PM, Shuah Khan wrote:
> 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
> 


Hi Mauro,

Are you planning to get this inot 4,8-rc1? 

The first patch is now at [PATCH v3] media: Media Device Allocator API
that has been reviewed by Hans.

https://lkml.org/lkml/2016/5/27/530

thanks,
-- Shuah