linux-toradex.git/drivers/usb/phy/phy-tahvo.c, branch v5.5

USB: phy: tahvo: convert platform driver to use dev_groups

2019-08-09T05:55:44+00:00

Platform drivers now have the option to have the platform core create
and remove any needed sysfs attribute files.  So take advantage of that
and do not register "by hand" any sysfs files.

Cc: Felipe Balbi 
Link: https://lore.kernel.org/r/20190805193636.25560-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman

USB: move many drivers to use DEVICE_ATTR_RO

2018-01-24T07:49:52+00:00

Instead of "open coding" a DEVICE_ATTR() define, use the
DEVICE_ATTR_RO() macro instead, which does everything properly instead.

This does require a few static functions to be renamed to work properly,
but thanks to a script from Joe Perches, this was easily done.

Reported-by: Joe Perches 
Cc: Matthieu CASTET 
Cc: Stanislaw Gruszka 
Cc: Oliver Neukum 
Acked-by: Alan Stern 
Acked-by: Felipe Balbi 
Acked-by: Pete Zaitcev 
Signed-off-by: Greg Kroah-Hartman

USB: move many drivers to use DEVICE_ATTR_RW

2018-01-24T07:49:51+00:00

Instead of "open coding" a DEVICE_ATTR() define, use the
DEVICE_ATTR_RW() macro instead, which does everything properly instead.

This does require a few static functions to be renamed to work properly,
but thanks to a script from Joe Perches, this was easily done.

Reported-by: Joe Perches 
Cc: Matthieu CASTET 
Cc: Stanislaw Gruszka 
Cc: Peter Chen 
Cc: Mathias Nyman 
Acked-by: Felipe Balbi 
Acked-by: Alan Stern 
Acked-by: Bin Liu 
Signed-off-by: Greg Kroah-Hartman

USB: phy: Remove redundant license text

2017-11-07T14:45:01+00:00

Now that the SPDX tag is in all USB files, that identifies the license
in a specific and legally-defined manner.  So the extra GPL text wording
can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Cc: Thierry Reding 
Cc: Jonathan Hunter 
Acked-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

USB: add SPDX identifiers to all remaining files in drivers/usb/

2017-11-04T10:48:02+00:00

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner 
Cc: Kate Stewart 
Cc: Philippe Ombredanne 
Signed-off-by: Greg Kroah-Hartman 
Acked-by: Felipe Balbi 
Acked-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'extcon-next-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into usb-next

2017-10-27T10:36:06+00:00

Chanwoo writes:

Update extcon for 4.15

Detailed description for this pull request:
1. Split out extcon header file for consumer and provider device
: The extcon has two type of extcon devices as following.
- 'extcon provider deivce' adds new extcon device and detect
the state/properties of external connector. Also, it notifies the
state/properties to the extcon consumer device.
- 'extcon consumer device' gets the change state/properties
from extcon provider device.

Prior to that, include/linux/extcon.h contains all exported API
for both provider and consumer device driver. To clarify the meaning
of header file and to remove the wrong use-case on consumer device.
- include/linux/extcon-provider.h includes API for the provider device driver.
- include/linux/extcon.h includes the API for the consumer device driver.

2. Support the SmartDock accessory on extcon-max77843.c device driver
- Support the SmartDock accessory which detects following connectors
 at the same time.
 : USB host throught USB hub for mouse, keyboard and so on.
 : MHL connector for video output.
 : Charger connector for battery charging.
- It tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.

3. Fix the minor issue of extcon driver
- Delete the unneeded initialization in extcon-max14577.
- Make extcon_info static const in order to fix the warning.

usb: phy: tahvo: fix error handling in tahvo_usb_probe()

2017-10-24T09:51:12+00:00

If devm_extcon_dev_allocate() fails, we should disable clk before return.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov 
Fixes: 860d2686fda7 ("usb: phy: tahvo: Use devm_extcon_dev_[allocate|register]() and replace deprecated API")
Signed-off-by: Felipe Balbi

extcon: Split out extcon header file for consumer and provider device

2017-10-23T05:07:58+00:00

The extcon has two type of extcon devices as following.
- 'extcon provider deivce' adds new extcon device and detect the
   state/properties of external connector. Also, it notifies the
   state/properties to the extcon consumer device.
- 'extcon consumer device' gets the change state/properties
   from extcon provider device.
Prior to that, include/linux/extcon.h contains all exported API for
both provider and consumer device driver. To clarify the meaning of
header file and to remove the wrong use-case on consumer device,
this patch separates into extcon.h and extcon-provider.h.

[Description for include/linux/{extcon.h|extcon-provider.h}]
- extcon.h includes the extcon API and data structure for extcon consumer
  device driver. This header file contains the following APIs:
  : Register/unregister the notifier to catch the change of extcon device
  : Get the extcon device instance
  : Get the extcon device name
  : Get the state of each external connector
  : Get the property value of each external connector
  : Get the property capability of each external connector

- extcon-provider.h includes the extcon API and data structure for extcon
  provider device driver. This header file contains the following APIs:
  : Include 'include/linux/extcon.h'
  : Allocate the memory for extcon device instance
  : Register/unregister extcon device
  : Set the state of each external connector
  : Set the property value of each external connector
  : Set the property capability of each external connector

Signed-off-by: Chanwoo Choi 
Acked-by: Sebastian Reichel 
Acked-by: Chen-Yu Tsai 
Acked-by: Charles Keepax 
Acked-by: Lee Jones 
Acked-by: Felipe Balbi 
Acked-by: Yoshihiro Shimoda 
Acked-by: Kishon Vijay Abraham I

usb: phy-tahvo: constify attribute_group structures.

2017-08-10T18:31:27+00:00

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by  work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav 
Signed-off-by: Greg Kroah-Hartman

usb: phy: tahvo: Replace the deprecated extcon API

2017-01-24T09:04:15+00:00

This patch replaces the deprecated extcon API as following:
- extcon_set_cable_state_() -> extcon_set_state_sync()

Signed-off-by: Chanwoo Choi 
Acked-by: Felipe Balbi 
Signed-off-by: Felipe Balbi