linux-kernel - [PATCH v2 0/2] usb/gadget: independent registration of gadgets and gadget

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Date:	Mon, 16 Feb 2015 00:58:01 +0200
From:	Ruslan Bilovol <ruslan.bilovol@...il.com>
To:	balbi@...com
Cc:	k.opasiak@...sung.com, stern@...land.harvard.edu,
	peter.chen@...escale.com, linux-kernel@...r.kernel.org,
	gregkh@...uxfoundation.org, andrzej.p@...sung.com
Subject: [PATCH v2 0/2] usb/gadget: independent registration of gadgets and gadget

This patchset adds independent registration of gadgets
and gadget drivers to udc-core. This is very useful for
built-in modules into kernel case since it's possible
situation that gadget driver is probing at a time
when no gadgets are registered in udc-core.
In this case instead of silently failing without
of any attempt to recover, with independent registration
of gadgets and gadget drivers there is no matter
in which order gadgets and gadget drivers are
probed/registered.

This patch has side-effect on gadget drivers that had
__init/__exit attributes on some paths like bind/unbind
and (since bind/unbind may happen at any time) should
not use them now. This is covered by second patch
(please let me know if I need to break it into separate
patches for each gadget driver)
 
=====================
v2:
 - changed first patch to have only deferred probe part
   (because Gadget Bus seems to be better variant when
   some more complicated behavior will be required)
 - rebased to latest 'next' branch of Felipe Balbi's tree

Ruslan Bilovol (2):
  usb: gadget: udc-core: independent registration of gadgets and gadget
    drivers
  usb: gadget: legacy: don't use __init/__exit attributes for
    bind/unbind path

 drivers/usb/gadget/legacy/acm_ms.c       |  6 +--
 drivers/usb/gadget/legacy/audio.c        |  6 +--
 drivers/usb/gadget/legacy/cdc2.c         |  6 +--
 drivers/usb/gadget/legacy/dbgp.c         |  2 +-
 drivers/usb/gadget/legacy/ether.c        |  8 ++--
 drivers/usb/gadget/legacy/gmidi.c        |  6 +--
 drivers/usb/gadget/legacy/hid.c          |  6 +--
 drivers/usb/gadget/legacy/mass_storage.c |  4 +-
 drivers/usb/gadget/legacy/multi.c        | 16 +++----
 drivers/usb/gadget/legacy/ncm.c          |  6 +--
 drivers/usb/gadget/legacy/nokia.c        |  6 +--
 drivers/usb/gadget/legacy/printer.c      |  6 +--
 drivers/usb/gadget/legacy/serial.c       |  2 +-
 drivers/usb/gadget/legacy/webcam.c       |  4 +-
 drivers/usb/gadget/legacy/zero.c         |  2 +-
 drivers/usb/gadget/udc/udc-core.c        | 77 ++++++++++++++++++++++++++++++--
 16 files changed, 117 insertions(+), 46 deletions(-)

-- 
1.9.1

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