linux.git/drivers/usb/chipidea/core.c, branch v4.1

usb: chipidea: support runtime power management for otg fsm mode

2015-03-18T15:19:12+00:00

This patch adds runtime power management support for otg fsm mode, since
A-device in a_idle state cannot detect data pulse irq after suspended, here
enable wakeup by connection before suspend to make it can be resumed by DP;
and handle wakeup from that state like SRP.

Signed-off-by: Li Jun 
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add chipidea revision information

2015-03-18T15:19:10+00:00

Define ci_get_revision API to know the controller revision
information according to chipidea 1.1a, 2.0a and 2.5a spec.
Besides, add one entry at struct ci_hdrc to indicate revision
information, it can be used for adding different code for
revisions, eg kinds of errata.

Reviewed-by: Stefan Agner 
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: clear otg interrupt status for otg capable controller

2015-03-18T15:19:09+00:00

We need to do it for all otg capable controller, not only peripheral
featured otg capable controller, otherwise, the host-only role, but
otg capable controller may be responded by otg interrupt.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add usb as system wakeup source

2015-03-18T15:19:09+00:00

The USB signal can be system wakeup source, this patch add the
support, for how to enable it, see Documentation/usb/chipidea.txt.
Since USB wakeup enable logic is vendor/platform specific, the
glue layer needs to implement it to support this feature.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add runtime power management support

2015-03-18T15:19:08+00:00

Add runtime power management support.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

Revert "usb: chipidea: remove duplicate dev_set_drvdata for host_start"

2015-01-09T17:45:30+00:00

This reverts commit 14b4099c074f2ddf4d84b22d370170e61b527529

It moved platform_set_drvdata(pdev, ci) before hcd is created,
and the hcd will assign itself as ci controller's drvdata during
the hcd creation function (in usb_create_shared_hcd), so it
overwrites the real ci's drvdata which we want to use.

So, if the controller is at host mode, the system suspend
API will get the wrong struct ci_hdrc pointer, and cause the
oops.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-15T00:10:09+00:00

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev__once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...

usb: chipidea: Fixed a few typos in comments

2014-11-26T17:28:13+00:00

Fixed typos in comments of 2 drivers/usb/chipidea files

Signed-off-by: Mickael Maison 
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: fix phy handling

2014-11-26T17:28:12+00:00

The generic plaftorm device for ChipIdea drivers is probed by calling
ci_hdrc_probe. The device structure used is not the one of the specific
ChipIdea driver but the one of the generic ChipIdea platform device.

This results in not being able to probe the PHYs as we're not using the
right device structure. Since all ChipIdea drivers are retrieving their
PHYs in their specific driver code, this didn't impact any of them yet.

Fixes it using the right device structure (dev->parent).

Signed-off-by: Antoine Tenart 
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: remove duplicate dev_set_drvdata for host_start

2014-11-26T17:28:12+00:00

The core driver has already done it, besides, move set driver data
operation just after ci has allocated successfully in case some
code (like ci_role_start) want to access this driver data.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman