[PATCH v7 00/23] usb gadget update for OTG 2.0

[Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>]

Change for v7:
- Free otg descriptor when failure of bind in patch 21, 22, 23.
  add Roger's Reviewed-by for patch 10~20.
- Choose the lesser otg-rev if otg-rev has been set before update by DT,
  remove 0x0300 in supported otg-rev list, and add code comments in case
  otg-rev is not passed in DT in patch 7.
- Fail chipidea usb initilization if DT pass an unsupported otg-rev in patch 8.

Change for v6:
- Change of_usb_set_otg_caps to be of_usb_update_otg_caps, and add
  sanity check of otg-rev.
- Add chipidea otg-rev ability to be 0x0200, which will be updated
  in DT, if not passed, will be reset to be 0.
- Remove unnecessary change: move config's descriptor and bmAttributes
  init from xxxi_config() to xxx_bind() in leagcy gadget drivers.

This is a follow-up of Macpaul Lin's previous patchset to resolve usb
gadget driver working with OTG 2.0, and set otg features by not only
usb driver config but also usb hardware property in DT, main changes:
1. Add usb_otg20_descriptor definition for OTG 2.0 which introduces bcdOTG
   field for otg revision, bcdOTG can be passed via device tree.
2. OTG features(SRP/HNP/ADP) can be decided by combination of usb HW
   properties and usb driver config.
3. Change the chipidea usb driver to use the updated mechanism.
4. Remove static usb otg descriptor definition, but allocate and init it
   according to otg capabilities in each gadget driver, if otg capabilities
   is not defined for legacy platforms, the usb otg descriptor content is
   kept the same as current static definition.

Li Jun (19):
  usb: otg: add usb_otg_caps structure for otg capabilities
  doc: dt-binding: usb: add otg related properties
  usb: common: add API to update usb otg capabilities by device tree
  usb: chipidea: set usb otg capabilities
  usb: chipidea: update ci_otg_is_fsm_mode conditions
  usb: gadget: add usb otg descriptor allocate and init interface
  usb: gadget: configfs: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: ether: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: acm_ms: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: audio: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: cdc2: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: g_ffs: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: hid: allocate and init otg descriptor by otg capabilities
  usb: gadget: mass_storage: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: multi: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: ncm: allocate and init otg descriptor by otg capabilities
  usb: gadget: printer: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: serial: allocate and init otg descriptor by otg
    capabilities
  usb: gadget: zero: allocate and init otg descriptor by otg
    capabilities

Macpaul Lin (4):
  usb: add usb_otg20_descriptor for OTG 2.0 and above
  usb: add USB_OTG_ADP definition
  usb: add usb_otg_caps to usb_gadget structure.
  usb: gadget: composite: add USB_DT_OTG request handling

 Documentation/devicetree/bindings/usb/generic.txt | 15 ++++++
 drivers/usb/chipidea/ci.h                         |  5 +-
 drivers/usb/chipidea/core.c                       | 15 ++++++
 drivers/usb/chipidea/debug.c                      |  1 +
 drivers/usb/chipidea/udc.c                        |  7 ++-
 drivers/usb/common/common.c                       | 56 +++++++++++++++++++++++
 drivers/usb/gadget/composite.c                    | 27 +++++++++++
 drivers/usb/gadget/config.c                       | 56 +++++++++++++++++++++++
 drivers/usb/gadget/configfs.c                     | 29 ++++++++----
 drivers/usb/gadget/legacy/acm_ms.c                | 35 +++++++-------
 drivers/usb/gadget/legacy/audio.c                 | 34 ++++++++------
 drivers/usb/gadget/legacy/cdc2.c                  | 35 +++++++-------
 drivers/usb/gadget/legacy/ether.c                 | 36 ++++++++-------
 drivers/usb/gadget/legacy/g_ffs.c                 | 32 +++++++------
 drivers/usb/gadget/legacy/hid.c                   | 36 ++++++++-------
 drivers/usb/gadget/legacy/mass_storage.c          | 35 +++++++-------
 drivers/usb/gadget/legacy/multi.c                 | 37 ++++++++-------
 drivers/usb/gadget/legacy/ncm.c                   | 34 ++++++++------
 drivers/usb/gadget/legacy/printer.c               | 49 ++++++++++++--------
 drivers/usb/gadget/legacy/serial.c                | 37 ++++++++-------
 drivers/usb/gadget/legacy/zero.c                  | 41 +++++++++--------
 include/linux/usb/chipidea.h                      |  1 +
 include/linux/usb/gadget.h                        |  6 +++
 include/linux/usb/of.h                            |  7 +++
 include/linux/usb/otg.h                           | 15 ++++++
 include/uapi/linux/usb/ch9.h                      | 12 +++++
 26 files changed, 485 insertions(+), 208 deletions(-)

-- 
1.9.1

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