linux-kernel - [PATCH v5 0/3] LED triggers for USB host and device

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Date:	Fri, 29 Aug 2014 15:07:40 +0200
From:	Michal Sojka <sojka@...ica.cz>
To:	linux-usb@...r.kernel.org
Cc:	Michal Sojka <sojka@...ica.cz>,
	Alan Stern <stern@...land.harvard.edu>,
	Bryan Wu <cooloney@...il.com>, Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	linux-kernel@...r.kernel.org, michal.vokac@...ap.cz
Subject: [PATCH v5 0/3] LED triggers for USB host and device


This adds LED triggers for USB host and device. First patch refactors
UDC drivers as requested by Felipe Balbi, second is a preparation for
the third, which adds the LED triggers.

Changes from v4:
- Replaced BUG_ON with pr_err (Alan Stern, greg k-h).
- Used proper coding style for switch statement (greg k-h).
- Added comment about NULL argument (greg k-h).
- EXPORT_SYMBOL changed to EXPORT_SYMBOL_GPL (greg k-h).
- Both triggers are now registerd even if host or gagdet subsystem
  is not enabled (Bryan Wu, greg k-h).
- Added performance numbers to the commit message of the last patch
  (greg k-h).

Changes from v3:
- usb_gadget_giveback_request() moved outside of CONFIG_HAS_DMA
  conditioned block.
- Added kernel-doc for usb_gadget_giveback_request() (Felipe Balbi).
- Removed outdated comment (Alan Stern).
- req->complete == NULL is now a bug. Previously, this was ignored
  (Alan Stern).
- File rename moved to a separate commit (greg k-h).

Changes from v2:
- Host/gadget triggers merged to a single file in usb/common/ (Felipe
  Balbi).
- UDC drivers refactored so that LED trigger works for all of them.

Changes from v1:
- Moved from drivers/leds/ to drivers/usb/.
- Improved Kconfig help.
- Linked with other modules rather than being standalone modules.

Michal Sojka (3):
  usb: gadget: Refactor request completion
  usb: Rename usb-common.c
  usb: Add LED triggers for USB activity

 drivers/usb/Kconfig                           | 10 +++++
 drivers/usb/chipidea/udc.c                    |  6 +--
 drivers/usb/common/Makefile                   |  5 ++-
 drivers/usb/common/{usb-common.c => common.c} |  0
 drivers/usb/common/led.c                      | 57 +++++++++++++++++++++++++++
 drivers/usb/core/hcd.c                        |  2 +
 drivers/usb/dwc2/gadget.c                     |  6 +--
 drivers/usb/dwc3/gadget.c                     |  2 +-
 drivers/usb/gadget/udc/amd5536udc.c           |  2 +-
 drivers/usb/gadget/udc/at91_udc.c             |  2 +-
 drivers/usb/gadget/udc/atmel_usba_udc.c       |  4 +-
 drivers/usb/gadget/udc/bcm63xx_udc.c          |  2 +-
 drivers/usb/gadget/udc/dummy_hcd.c            | 10 ++---
 drivers/usb/gadget/udc/fotg210-udc.c          |  2 +-
 drivers/usb/gadget/udc/fsl_qe_udc.c           |  6 +--
 drivers/usb/gadget/udc/fsl_udc_core.c         |  6 +--
 drivers/usb/gadget/udc/fusb300_udc.c          |  2 +-
 drivers/usb/gadget/udc/goku_udc.c             |  2 +-
 drivers/usb/gadget/udc/gr_udc.c               |  2 +-
 drivers/usb/gadget/udc/lpc32xx_udc.c          |  2 +-
 drivers/usb/gadget/udc/m66592-udc.c           |  2 +-
 drivers/usb/gadget/udc/mv_u3d_core.c          |  8 +---
 drivers/usb/gadget/udc/mv_udc_core.c          |  8 +---
 drivers/usb/gadget/udc/net2272.c              |  2 +-
 drivers/usb/gadget/udc/net2280.c              |  2 +-
 drivers/usb/gadget/udc/omap_udc.c             |  2 +-
 drivers/usb/gadget/udc/pch_udc.c              |  2 +-
 drivers/usb/gadget/udc/pxa25x_udc.c           |  2 +-
 drivers/usb/gadget/udc/pxa27x_udc.c           |  2 +-
 drivers/usb/gadget/udc/r8a66597-udc.c         |  2 +-
 drivers/usb/gadget/udc/s3c-hsudc.c            |  3 +-
 drivers/usb/gadget/udc/s3c2410_udc.c          |  2 +-
 drivers/usb/gadget/udc/udc-core.c             | 23 +++++++++++
 drivers/usb/musb/musb_gadget.c                |  2 +-
 drivers/usb/renesas_usbhs/mod_gadget.c        |  2 +-
 include/linux/usb.h                           | 12 ++++++
 include/linux/usb/gadget.h                    |  8 ++++
 37 files changed, 157 insertions(+), 57 deletions(-)
 rename drivers/usb/common/{usb-common.c => common.c} (100%)
 create mode 100644 drivers/usb/common/led.c

-- 
2.1.0

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