Commit graph

536 commits

Author SHA1 Message Date
Peter Chen a0c9d0defc usb: misc: usbtest: format max packet size for iso transfer
The current code prints all wMaxPacketSize content at endpoint
descriptor, if there is a high speed, high bandwidth endpoint,
it may confuse the users, eg, if there are 3 transactions during
microframe, it will print "wMaxPacket 1400" for packet content.
This commit splits wMaxpacketSize and transaction numbers for
output messages.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18 10:05:23 -07:00
Saurabh Karajgaonkar a53870c0eb usb: misc: ftdi-elan: Simplify return statement
Replace redundant variable use in return statement.

Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-05 12:37:21 -07:00
Linus Torvalds 2a298679b4 USB patches for 4.2-rc1
Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
 majority of changes are in the gadget drivers, with a bunch of other
 small driver changes.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
  majority of changes are in the gadget drivers, with a bunch of other
  small driver changes.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
  usb: dwc3: Use ASCII space in Kconfig
  usb: chipidea: add work-around for Marvell HSIC PHY startup
  usb: chipidea: allow multiple instances to use default ci_default_pdata
  dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
  phy: add Marvell HSIC 28nm PHY
  phy: Add Marvell USB 2.0 OTG 28nm PHY
  dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
  USB: ssb: use devm_kzalloc
  USB: ssb: fix error handling in ssb_hcd_create_pdev()
  usb: isp1760: check for null return from kzalloc
  cdc-acm: Add support of ATOL FPrint fiscal printers
  usb: chipidea: usbmisc_imx: Remove unneeded semicolon
  USB: usbtmc: add device quirk for Rigol DS6104
  USB: serial: mos7840: Use setup_timer
  phy: twl4030-usb: add ABI documentation
  phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
  phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
  phy: twl4030-usb: make runtime pm more reliable.
  drivers:usb:fsl: Fix compilation error for fsl ehci drv
  usb: renesas_usbhs: Don't disable the pipe if Control write status stage
  ...
2015-06-26 15:59:26 -07:00
Pratyush Anand e34cadde3b Pratyush Anand has moved
pratyush.anand@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with pratyush.anand@gmail.com.

Signed-off-by: Pratyush Anand <pratyush.anand@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:38 -07:00
Dennis O'Brien 0317a65b94 usb, HID: Remove Vernier devices from lsusb and hid_ignore_list
Removes Vernier Software & Technology devices from the ldusb
driver and the hid_ignore_list table of the usbhid driver in the
Linux tree.  These devices will now be supported via the hidraw
driver.

A user space driver for these devices will be found in the
Go! Software Development Kit from Vernier at
http://www.vernier.com/downloads/software-development-kits/go-sdk/.
These devices are also be supported by the LabQuest2 standalone
interface shown at http://www.vernier.com/products/interfaces/labq2/
and the LoggerPro for Linux software shown at
http://www.vernier.com/downloads/logger-pro-linux/.

Signed-off-by: Dennis O'Brien <dennis.obrien@eqware.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-06-01 14:44:08 +02:00
Greg Kroah-Hartman adde04c628 USB: uss720.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:12 +02:00
Greg Kroah-Hartman b87f5671cc USB: sisusb_con.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:12 +02:00
Greg Kroah-Hartman 187859f9ce USB: sisusb.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:11 +02:00
Randy Dunlap d9aab404e6 usb/misc: fix chaoskey build, needs HW_RANDOM
Fix build errors when HW_RANDOM is not enabled:

drivers/built-in.o: In function `chaoskey_disconnect':
chaoskey.c:(.text+0x5f3f00): undefined reference to `hwrng_unregister'
drivers/built-in.o: In function `chaoskey_probe':
chaoskey.c:(.text+0x5f42a6): undefined reference to `hwrng_register'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-03 19:03:15 +02:00
Keith Packard 8b86ed078a usb: Fix warnings in chaoskey driver
>    drivers/usb/misc/chaoskey.c: In function 'chaoskey_read':
> >> drivers/usb/misc/chaoskey.c:412:3: error: implicit declaration of function 'copy_to_user'
> >> [-Werror=implicit-function-declaration]
>       remain = copy_to_user(buffer, dev->buf + dev->used, this_time);

I was unable to reproduce this locally, but added an explicit

	#include <linux/uaccess.h>

which should ensure the definition on all architectures.

> sparse warnings: (new ones prefixed by >>)
>
> >> drivers/usb/misc/chaoskey.c:117:30: sparse: incorrect type in assignment (different base types)
>    drivers/usb/misc/chaoskey.c:117:30:    expected int [signed] size
>    drivers/usb/misc/chaoskey.c:117:30:    got restricted __le16 [usertype] wMaxPacketSize

Switched the code to using the USB descriptor accessor functions.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-01 14:00:11 +02:00
Ben Gamari c0ab6bb059 usb/misc/usb3503: Always read refclk frequency from DT
This is necessary to set REF_SEL appropriately in uses where refclk is
always available.

Signed-off-by: Ben Gamari <ben@smart-cactus.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26 10:50:52 +01:00
Keith Packard 66e3e59189 usb: Add driver for Altus Metrum ChaosKey device (v2)
This is a hardware random number generator. The driver provides both a
/dev/chaoskeyX entry and hooks the entropy source up to the kernel
hwrng interface. More information about the device can be found at
http://chaoskey.org

The USB ID for ChaosKey was allocated from the OpenMoko USB vendor
space and is visible as 'USBtrng' here:

http://wiki.openmoko.org/wiki/USB_Product_IDs

v2: Respond to review from Oliver Neukum <oneukum@suse.de>

 * Delete extensive debug infrastructure and replace it with calls to
   dev_dbg.

 * Allocate I/O buffer separately from device structure to obey
   requirements for non-coherant architectures.

 * Initialize mutexes before registering device to ensure that open
   cannot be invoked before the device is ready to proceed.

 * Return number of bytes read instead of -EINTR when partial read
   operation is aborted due to a signal.

 * Make sure device mutex is unlocked in read error paths.

 * Add MAINTAINERS entry for the driver

Signed-off-by: Keith Packard <keithp@keithp.com>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26 10:47:11 +01:00
Markus Elfring c60b89aa36 USB: appledisplay: Deletion of a check before backlight_device_unregister()
The backlight_device_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:56:40 +01:00
Nicholas Mc Guire 8f7e9473ab USB: legotower: use msecs_to_jiffies for time conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:20:34 +01:00
Andy Shevchenko 5d31a6dc78 USB: use %*ph specifier in uss720 driver
There is a %*ph specifier that allows to dump small buffers. This patch
converts the code to use the specifier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-09 11:37:18 -08:00
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1
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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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_<level>_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
  ...
2014-12-14 16:10:09 -08:00
Dan Carpenter fc625960ed USB: adutux: NULL dereferences on disconnect
Both "dev->udev" and "interface->dev" are NULL.  These printks are not
very interesting so I just deleted them.

Fixes: 03270634e2 ('USB: Add ADU support for Ontrak ADU devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26 19:50:15 -08:00
Markus Elfring bb2d43e091 USB-SIS: Deletion of an unnecessary check before the function call "usb_put_dev"
The usb_put_dev() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-24 17:24:31 -08:00
Peter Chen 39d98bdc10 usb: misc: usb3503: delete unnecessary 'out of memory' messages
The memory subsystem has already had similar message for it.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03 15:42:05 -08:00
Sudip Mukherjee 1cc373c654 usb: yurex: fixed sparse warning of incorrect type
fixed sparse warning of
	1) incorrect type (different address spaces)
	2) incorrect type in initializer

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03 15:34:00 -08:00
Wolfram Sang 45c74c0655 usb: misc: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:49 +02:00
Antoine Tenart 3d46e73dfd usb: rename phy to usb_phy in HCD
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29 11:52:59 -04:00
Petr Mladek 37ebb54915 usb: hub: rename khubd to hub_wq in documentation and comments
USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.

This patch mostly just replaces "khubd" with "hub_wq". There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the following files:

	   Documentation/usb/hotplug.txt
	   drivers/net/usb/usbnet.c
	   drivers/usb/core/hcd.c
	   drivers/usb/host/ohci-hcd.c
	   drivers/usb/host/xhci.c

Signed-off-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:33:19 -07:00
Tobias Jakobi 4463e15267 usb3503: clarify what the registers 'PDS' and 'CFG1' really do
The current comment sounds like you have to disable some of
the ports to be able to use self-powered mode. This is
misleading, so change the wording to reflect this.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:15:18 -07:00
Tobias Jakobi 6b0844214d usb3503: correct error message in probe ('connect' to 'interrupt')
intn is obviously the interrupt pin.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:15:18 -07:00
Arjun Sreedharan 113ad911ad usb: misc: yurex: remove useless casting of private_data
Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 21:50:57 -07:00
Felipe Balbi f7cc38b16e Linux 3.17-rc4
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Merge tag 'v3.17-rc4' into next

Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.

Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/gadget/Makefile
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/legacy/Makefile
	drivers/usb/phy/phy-samsung-usb.h
2014-09-08 14:39:01 -05:00
Amit Virdi 457a0955e1 usbtest: Add interrupt EP testcases
Two simple test cases for interrupt endpoints are added to the usbtest.c file.
These are simple non-queued interrupt IN and interrupt OUT transfers. Currently,
only gadget zero is capable of executing the interrupt EP test cases. However,
extending the same to other gadgets is extremely simple and can be done
on-demand.

The two new tests added are
  - Test 25: To verify Interrupt OUT transfer
  - Test 26: To verify Interrupt IN transfer

Since the default value of wMaxPacketSize is set as 1024, so interrupt
IN transfers must be specified with the size parameter = multiple of
1024. Otherwise the default value (512) in the usbtest application fails
the transfer. See [RUN 4] for sample logs

The application logs (usbtest) and corresponding kernel logs are as
following:

[Run 1]
./testusb -a -c 10 -s 2048 -t 26 -v 511
usbtest 7-1:3.0: TEST 26: read 2048 bytes 10 times

[Run 2]
./testusb -a -c 10 -s 1024 -t 25 -v 511
usbtest 7-1:3.0: TEST 25: write 1024 bytes 10 times

[Run 3]
./testusb -a -c 10 -s 1098 -t 25 -v 511
usbtest 7-1:3.0: TEST 25: write 1098 bytes 10 times

[Run 4 - Failure case scenario]
./testusb -a  -t 26
unknown speed   /dev/bus/usb/007/004    0
/dev/bus/usb/007/004 test 26 --> 75 (Value too large for defined data type)

usbtest 7-1:3.0: TEST 26: read 512 bytes 1000 times
usb 7-1: test26 failed, iterations left 999, status -75 (not 0)

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-29 15:51:11 -05:00
Stephen Hemminger 5b6b80aeb2 USB: sisusb: add device id for Magic Control USB video
I have a j5 create (JUA210) USB 2 video device and adding it device id
to SIS USB video gets it to work.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-26 12:07:46 -07:00
Pratyush Anand b1bd3f1a39 usb: lvstest: Fix sparse warnings generated by kbuild test bot
Following sparse warnings were reported by kbuild test bot

drivers/usb/misc/lvstest.c:314:28: sparse: incorrect type in assignment (different base types)
   drivers/usb/misc/lvstest.c:314:28:    expected unsigned short [unsigned] [usertype] portchange
   drivers/usb/misc/lvstest.c:314:28:    got restricted __le16 [usertype] wPortChange
drivers/usb/misc/lvstest.c:332:40: sparse: restricted __le16 degrades to integer

This patch fixes above warnings.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-22 16:30:58 -07:00
Pratyush Anand ce21bfe603 USB: Add LVS Test device driver
OTG3 and EH Compliance Plan 1.0 talks about Super Speed OTG Verification
system (SS-OVS) which consists of an excersizer and analyzer.

USB Compliance Suite from Lecroy or Ellisys can act as such SS-OVS for
Link Layer Validation (LVS).

Some modifications are needed for an embedded Linux USB host to pass all
these tests.  Most of these tests require just Link to be in U0. They do
not work with default Linux USB stack since, default stack does port
reset and then starts sending setup packet, which is not expected by
Link Layer Validation (LVS) device of Lecroy Compliance Suit.  Then,
There are many Link Layer Tests which need host to generate specific
traffic.

This patch supports specific traffic generation cases. As of now all the
host Lecroy Link Layer-USBIF tests (except TD7.26) passes
with this patch for single run using  Lecroy USB Compliance Suite
Version 1.98 Build 239 and Lecroy USB Protocol Analyzer version 4.80
Build 1603. Therefore patch seems to be a good candidate for inclusion.
Further modification can be done on top of it.

lvstest driver will not bind to any device by default. It can bind
manually to a super speed USB host controller root hub. Therefore, regular
hub driver must be unbound before this driver is bound. For example, if
2-0:1.0 is the xhci root hub, then execute following to unbind hub driver.

 echo 2-0:1.0 > /sys/bus/usb/drivers/hub/unbind

Then write Linux Foundation's vendor ID which is used by root hubs and
SS root hub's device ID into new_id file. Writing IDs into new_id file
will also bind the lvs driver with any available SS root hub interfaces.

 echo "1D6B 3" > /sys/bus/usb/drivers/lvs/new_id

Now connect LVS device with root hub port.

Test case specific traffic can be generated as follows whenever needed:

1. To issue "Get Device descriptor" command for TD.7.06:
 echo  > /sys/bus/usb/devices/2-0\:1.0/get_dev_desc

2. To set U1 timeout to 127 for TD.7.18
 echo 127 > /sys/bus/usb/devices/2-0\:1.0/u1_timeout

3. To set U2 timeout to 0 for TD.7.18
 echo 0 > /sys/bus/usb/devices/2-0\:1.0/u2_timeout

4. To issue "Hot Reset" for TD.7.29
 echo  > /sys/bus/usb/devices/2-0\:1.0/hot_reset

5. To issue "U3 Entry" for TD.7.35
 echo  > /sys/bus/usb/devices/2-0\:1.0/u3_entry

6. To issue "U3 Exit" for TD.7.36
 echo  > /sys/bus/usb/devices/2-0\:1.0/u3_exit

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17 17:11:09 -07:00
Joonyoung Shim ecdc071d02 usb: usb3503: add PM functions
The usb3503 needs to switch to standby mode while suspending and should
switch to hub mode when resumed. Also we can control clock on PM
function.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-11 18:14:10 -07:00
Tushar Behera ec5734c41b usb: misc: usb3503: Update error code in print message
'err' is uninitialized, rather print the error code directly.

This also fixes following warning.
drivers/usb/misc/usb3503.c: In function ‘usb3503_probe’:
drivers/usb/misc/usb3503.c:195:11: warning: ‘err’ may be used uninitialized
in this function [-Wmaybe-uninitialized]
    dev_err(dev, "unable to request refclk (%d)\n", err);

Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-09 15:41:02 -07:00
Alan Stern 32b36eeae6 USB: usbtest: add a timeout for scatter-gather tests
In usbtest, tests 5 - 8 use the scatter-gather library in usbcore
without any sort of timeout.  If there's a problem in the gadget or
host controller being tested, the test can hang.

This patch adds a 10-second timeout to the tests, so that they will
fail gracefully with an ETIMEDOUT error instead of hanging.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Huang Rui <ray.huang@amd.com>
Tested-by: Huang Rui <ray.huang@amd.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-17 17:05:50 -07:00
Huang Rui a7683eb3af usb: usbtest: add pattern check on pipe in phase of unlink read
TEST 11 unlinks the URB read request for N times. When host and gadget
both initialize pattern 1 (mod 63) data series to do IN transfer, the
host side function should check the data buffer if it is as mod 63
series, because the data packet which host receivced will follow
pattern 1. So this patch adds this checking action.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:23:43 -07:00
Huang Rui e4d58f5dcb usb: usbtest: fix unlink write error with pattern 1
TEST 12 and TEST 24 unlinks the URB write request for N times. When
host and gadget both initialize pattern 1 (mod 63) data series to
transfer, the gadget side will complain the wrong data which is not
expected.  Because in host side, usbtest doesn't fill the data buffer
as mod 63 and this patch fixed it.

[20285.488974] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.489181] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active
[20285.489423] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb50800 length 512 last
[20285.489727] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000
[20285.490055] dwc3 dwc3.0.auto: Command Complete --> 0
[20285.490281] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.490492] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Active
[20285.490713] dwc3 dwc3.0.auto: ep1out-bulk: endpoint busy
[20285.490909] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Complete
[20285.491117] dwc3 dwc3.0.auto: request ffff8800aa6cb480 from ep1out-bulk completed 512/512 ===> 0
[20285.491431] zero gadget: bad OUT byte, buf[1] = 0
[20285.491605] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Set Stall' params 00000000 00000000 00000000
[20285.491915] dwc3 dwc3.0.auto: Command Complete --> 0
[20285.492099] dwc3 dwc3.0.auto: queing request ffff8800aa6cb480 to ep1out-bulk length 512
[20285.492387] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.492595] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active
[20285.492830] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb51000 length 512 last
[20285.493135] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000
[20285.493465] dwc3 dwc3.0.auto: Command Complete --> 0

Cc: <stable@vger.kernel.org>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:23:43 -07:00
Marek Szyprowski 657d898a93 usb: usb5303: add support for reference clock specified in device tree
USB3503 chip supports 8 values of reference clock. The value is
specified by REF_SEL[1:0] pins and INT_N line. This patch add support
for getting 'refclk' clock, enabling it and setting INT_N line according
to the value of the gathered clock. If no clock has been specified,
driver defaults to the old behaviour (assuming that clock has been
specified by REF_SEL pins from primary reference clock frequencies
table).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:19:04 -07:00
Oliver Neukum c78d1ecfd7 USB: yurex: fix race between probe() and read()
There's a window during which read() would return 0 instead
of a correct error for no data yet. Reorder initialization
to fix the race.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:03:58 -07:00
Oliver Neukum 552e1f2679 USB: appledisplay: fix race between reading and writing from the device
The workqueue handler may call appledisplay_bl_get_brightness() while
user space calls appledisplay_bl_update_status(). As they share a
buffer that must not happen. Use a mutex for mutual exclusion.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:03:57 -07:00
Joe Perches 549e83500b USB: iowarrior: Convert local dbg macro to dev_dbg
Use a more standard logging style.

Add terminating newlines to formats.
Remove __func__ as that can be added via dynamic debug.
Remove now unnecessary debug module parameter.
Remove the dbg macro too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 15:00:22 -07:00
Joe Perches e2b86c1d39 USB: appledisplay: Convert /n to \n
Use a newline character appropriately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 15:00:22 -07:00
Joe Perches 8355d39cc2 usb: ftdi-elan: Use pr_<level>
Use a more current logging style.

Add pr_fmt to prefix messages appropriately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches a92cec2737 usb: ftdi-elan: Coalesce string fragment
Make it easier to grep for this.

Neaten a trailing statement.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 5acc6e4071 usb: ftdi-elan: Coalesce formats
Make it easier to find formats.

Realign arguments around these changes.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 8dae693ca9 usb: ftdi-elan: Convert leading spaces to tabs
Use tabs for indentation.
Use a more normal kernel comment style (align multiline *'s)

git diff -w shows no differences

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 90ba4f7919 usb: ftdi-elan: Fix format fragments
Breaking formats into fragments with a split
between % and field types should be coalesced.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 3c1b2c3ecd USB: sisusb: Use static const, fix typo
Convert 1 char * array to 2 char arrays to reduce size.
Use static const to avoid array reloads on function entry.
Fix asymmetric typo.

$ size drivers/usb/misc/sisusbvga/sisusb.o*
   text	   data	    bss	    dec	    hex	filename
  29971	   4841	   9180	  43992	   abd8	drivers/usb/misc/sisusbvga/sisusb.o.new
  30083	   4841	   9180	  44104	   ac48	drivers/usb/misc/sisusbvga/sisusb.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-03 08:54:30 -08:00
Christian Vogel e8fcbb6140 usb/misc/usbled: Add Riso Kagaku Webmail Notifier
Add support for the "Webmail Notifier" (USB powered LED for signaling
new emails) made by Riso Kagaku Corp. which displays 7 distinct colors.

USB Protocol initially reverse engineered by
	https://code.google.com/p/usbmailnotifier/.

Signed-off-by: Christian Vogel <vogelchr@vogel.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-11 14:00:16 -08:00
Paul Bolle ea17c7c6ad USB: ELAN: Remove useless "default M" lines
The Kconfig entries for USB_U132_HCD and USB_FTDI_ELAN default to
(uppercase) "M". But in Kconfig (lowercase) "m" is a magic symbol. "M"
is an ordinary symbol. As "M" is never set these Kconfig symbols will
also not be set by default.

Since I'm not aware of a reason why these driver should be set by
default, let's just drop these lines (that basically do nothing).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-11 13:47:13 -08:00
Paul Gortmaker 803a536243 usb: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-08 15:01:39 -08:00