litmus-rt-ext-res.git/drivers/usb/phy, branch EXT-RES

USB: phy: am335x-control: fix device and of_node leaks

2017-01-12T10:39:20+00:00

commit 015105b12183556771e111e93f5266851e7c5582 upstream.

Make sure to drop the references taken by of_parse_phandle() and
bus_find_device() before returning from am335x_get_phy_control().

Note that there is no guarantee that the devres-managed struct
phy_control will be valid for the lifetime of the sibling phy device
regardless of this change.

Fixes: 3bb869c8b3f1 ("usb: phy: Add AM335x PHY driver")
Acked-by: Bin Liu 
Signed-off-by: Johan Hovold 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'usb-for-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

2016-09-14T18:37:50+00:00

Felipe writes:

usb: patches for v4.9 merge window

This time around we have 92 non-merge commits. Most
of the changes are in drivers/usb/gadget (40.3%)
with drivers/usb/gadget/function being the most
active directory (27.2%).

As for UDC drivers, only dwc3 (26.5%) and dwc2
(12.7%) have really been active.

The most important changes for dwc3 are better
support for scatterlist and, again, throughput
improvements. While on dwc2 got some minor stability
fixes related to soft reset and FIFO usage.

Felipe Tonello has done some good work fixing up our
f_midi gadget and Tal Shorer has implemented a nice
API change for our ULPI bus.

Apart from these, we have our usual set of
non-critical fixes, spelling fixes, build warning
fixes, etc.

usb: phy: phy-generic: Check clk_prepare_enable() error

2016-09-05T10:39:23+00:00

clk_prepare_enable() may fail, so we should better check its return
value and propagate it in the case of failure.

Signed-off-by: Fabio Estevam 
Signed-off-by: Felipe Balbi

usb: phy: ab8500-usb: fix spelling mistake "regester" -> "register"

2016-08-29T07:46:05+00:00

Trivial fix to spelling mistakes in dev_err messages.

Signed-off-by: Colin Ian King 
Signed-off-by: Felipe Balbi

usb: phy: mxs: Add DT bindings to configure TX settings

2016-08-25T09:13:18+00:00

The TX settings can be calibrated for particular hardware.  The
phy is reset by Linux, so this cannot be handled by the bootloader.

The TRM mentions that the maximum resistance should be used for the
DN/DP calibration in order to pass USB certification.

The values for the TX registers are poorly described in the TRM.
The meanings of the register values were taken from another
NXP-provided document:
https://community.nxp.com/message/566147#comment-566912

Acked-by: Peter Chen 
Acked-by: Rob Herring 
Signed-off-by: Jaret Cantu 
Signed-off-by: Felipe Balbi

usb: phy: generic: remove the vbus dependency

2016-08-25T09:13:07+00:00

As the last known user, ie. pxa27x_udc relying on calls to
usb_gadget_xxx() was amended to use the phy notifier, remove a bit the
USB stack adherence.

Actually the driver still uses the gadget API for structures definition,
but the implementation of USB gadget specific function usb_gadget_*() is
not necessary anymore.

Signed-off-by: Robert Jarzmik 
Signed-off-by: Felipe Balbi

usb: phy: generic: cope with initial state

2016-08-25T09:13:07+00:00

In the gpio based case, the status of the phy is known at start by
reading the VBus gpio.

Actually, this is a fix, as this initial state, when not set up,
prevents a gadget to answer to the enumeration phase, as there is no
notification in this case (the VBus is already high when kernel boots)
so no interrupt is triggered, and the flow is :
 - gadget initializes
 - gadget gets its phy-generic with a xxx_get_phy_xxx() call type
 - gadget does a "set_peripheral()" call type
   => here if the otg->state is correctly filled, the proper vbus
   handling will be called, and the gadget will be aware it should
   answer enumeration and go forth

Without this fix, the USB cable must be removed and replugged for any
gadget relying on phy-generic and its gpio vbus handling to work.

The problem was seen on a pxa27x architecture based board on a
devicetree build.

Signed-off-by: Robert Jarzmik 
Signed-off-by: Felipe Balbi

usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()

2016-08-11T12:09:45+00:00

Add missing platform_set_drvdata() in omap_otg_probe(), otherwise
calling platform_get_drvdata() in remove returns NULL.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun 
Signed-off-by: Felipe Balbi

usb: phy: move msm_hsusb.h into driver

2016-06-21T08:12:10+00:00

As a preparation for another cleanup, this moves the header file
for the phy-msm-usb driver into the driver itself. No other file
includes it any more, and we don't really want it in the global
namespace anyway.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Felipe Balbi

usb: phy: omap-otg: Space required after that ','.

2016-06-21T08:10:53+00:00

Space required after that ','.

Reviewed-by: Aaro Koskinen 
Signed-off-by: Sandhya Bankar 
Signed-off-by: Felipe Balbi