Commit Graph

24066 Commits

Author SHA1 Message Date
Simon Glass
102061bd8b patman: Avoid duplicate sign-offs
Keep track of all Signed-off-by tags in a commit and silently suppress any
duplicates.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-09 14:50:45 -06:00
Simon Glass
757f64a89b patman: Deal with 'git apply' failures correctly
This sort of failure is rare, but the code to deal with it is wrong.
Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-09 14:50:39 -06:00
Simon Glass
75b3c3aa84 sandbox: Update and expand the README
Now that sandbox has a good base of features, the README is quite out of
date. Update it, and document the new features.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-09 14:47:57 -06:00
Simon Glass
ad0e463954 sandbox: Provide a build option to avoid using SDL
Some machines do not have SDL libraries installed, and it is still useful
to build sandbox without LCD/keyboard support.

Add an option for this, used as follows:

    make sandbox_config all NO_SDL=1

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-09 14:47:13 -06:00
Simon Glass
1992dbfdb9 Make 'run' use run_command_list() instead of run_command()
In the case where an environment variable spans multiple lines, we should
use run_command_list() so that all lines are executed. This shold be
backwards compatible with existing behaviour for existing scripts.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-09 14:46:43 -06:00
Simon Glass
fd37dac9eb sandbox: Support 'env import' and 'env export'
Adjust the code for these commands so that they work on sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
(Adjusted to fix minor merge comflict, when applied)

Change-Id: I987dee6194cd5c83f82604caf894fc85e4eb71a8
2014-05-09 14:43:22 -06:00
Tom Rini
bcb879c0e3 Merge branch 'master' of git://git.denx.de/u-boot-arm 2014-05-09 11:18:45 -04:00
Tom Rini
146b468eb0 Merge branch 'master' of git://git.denx.de/u-boot-sparc 2014-05-09 11:09:59 -04:00
Albert ARIBAUD
d2a3e91139 Merge branch 'u-boot/master'
Conflicts:
	drivers/net/Makefile

(trivial merge)
2014-05-09 11:50:14 +02:00
Daniel Hellstrom
4148b3d0dd leon: implement missing get_tbclk()
Without this patch SPARC/LEON does not build.

Reported-by: Tom Rini <trini@ti.com>
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
2014-05-08 21:05:39 +02:00
Daniel Hellstrom
1c1c7506de leon: use CONFIG_SYS_HZ to config timer prescaler
Before it was hardcoded to 1000 ticks per second.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
2014-05-08 21:05:29 +02:00
Michal Simek
0986546582 serial: zynq: Fix typo in suffix function name
's/zynq_serial_initalize/zynq_serial_initialize/g'
serial_initialize is used by all serial drivers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-08 20:58:55 +02:00
Michal Simek
891655ebc1 serial: zynq: Remove sparse warnings
Warnings:
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_init' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_setbrg' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_getc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_tstc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_putc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_puts' was not declared. Should it be static?
drivers/serial/serial_zynq.c:182:22: warning: symbol 'uart_zynq_serial0_device' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_init' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_setbrg' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_getc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_tstc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_putc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_puts' was not declared. Should it be static?
drivers/serial/serial_zynq.c:185:22: warning: symbol 'uart_zynq_serial1_device' was not declared. Should it be static?

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-08 20:58:55 +02:00
Jesper B. Christensen
5146fc2b37 i2c: zynq: Fixed compilation errors when using DEBUG
Signed-off-by: Jesper B. Christensen <jesper.christensen@cobham.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-08 07:03:37 +02:00
Tom Rini
173d294b94 Merge branch 'serial' of git://www.denx.de/git/u-boot-microblaze 2014-05-06 14:55:45 -04:00
Tom Rini
33b0f7b5e6 Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze 2014-05-06 14:55:27 -04:00
Tom Rini
a1a1f6e938 Merge branch 'net' of git://www.denx.de/git/u-boot-microblaze 2014-05-06 14:50:22 -04:00
Tom Rini
3c3f13f819 Merge branch 'master' of git://git.denx.de/u-boot-usb 2014-05-06 14:45:51 -04:00
Michal Simek
870e0bda43 serial: zynq: Fix typo in suffix function name
's/zynq_serial_initalize/zynq_serial_initialize/g'
serial_initialize is used by all serial drivers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-06 13:47:42 +02:00
Michal Simek
6c4da35996 serial: zynq: Remove sparse warnings
Warnings:
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_init' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_setbrg' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_getc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_tstc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_putc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:181:1: warning: symbol 'uart_zynq0_puts' was not declared. Should it be static?
drivers/serial/serial_zynq.c:182:22: warning: symbol 'uart_zynq_serial0_device' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_init' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_setbrg' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_getc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_tstc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_putc' was not declared. Should it be static?
drivers/serial/serial_zynq.c:184:1: warning: symbol 'uart_zynq1_puts' was not declared. Should it be static?
drivers/serial/serial_zynq.c:185:22: warning: symbol 'uart_zynq_serial1_device' was not declared. Should it be static?

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-06 13:47:41 +02:00
Michal Simek
2fd2489b7a net: zynq: Fix sparse warnings in gem
Add missing header.

Warnings:
drivers/net/zynq_gem.c:491:5: warning: symbol 'zynq_gem_initialize' was not declared. Should it be static?
drivers/net/zynq_gem.c:542:5: warning: symbol 'zynq_gem_of_init' was not declared. Should it be static?

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-06 13:41:55 +02:00
Michal Simek
c1a9fa4ba6 net: zynq: Use predefined macros instead of hardcoded value
MII is used by this driver.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-06 13:41:33 +02:00
Stephan Linz
d1d37b5cab microblaze: Wire up OF support for emaclite
- expand the condition with CONFIG_OF_CONTROL

Signed-off-by: Stephan Linz <linz@li-pro.net>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-06 13:32:30 +02:00
Wu, Josh
1161f98db6 at91: video: atmel_hlcdfb.c: fix bad timing configuration
The right correspondance between LCD margins and LCD timings is:
    * upper margin -> vertical back porch
    * lower margin -> vertical front porch
    * left  margin -> horizontal back porch
    * right margin -> horizontal front porch

Signed-off-by: Josh Wu <josh.wu@atmel.com>
2014-05-05 11:50:16 +02:00
Stephen Warren
264e0e591b config: enable CMD_BMP when API+LCD is enabled
When both CONFIG_API and CONFIG_LCD are enabled, the API code calls
lcd_display_bitmap(). That isn't compiled unless either CONFIG_CMD_BMP
or CONFIG_SPLASH_SCREEN is enabled. In order to prevent build problems,
have config_fallbacks.h enable CONFIG_CMD_BMP when both API and LCD are
enabled.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2014-05-05 11:42:37 +02:00
Thomas Diener
e1ae71d8f4 logos: Update of the syteco company logo
Signed-off-by: Thomas Diener <dietho@gmx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2014-05-05 11:21:23 +02:00
Mateusz Zalega
af41d6b4cb common: fixed linker-list example
Last argument shouldn't be there.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
2014-05-05 10:24:13 +02:00
Stephen Warren
25fbf96b24 USB: gadget: save driver name before registering it
g_dnl_register() currently first attempts to register a composite
driver by name, and then saves the driver name once it's registered.
Internally to the registration code, g_dnl_do_config() is called and
attempts to compare the composite device's name with the list of known
device names. This fails since the composite device's name has not yet
been stored. This means that the first time "ums 0 0" is run, it fails,
but subsequent attempts succeed.

Re-order the name-saving and registration code to solve this.

Fixes: e5b834e07f51 ("USB: gadget: added a saner gadget downloader registration API")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-05-05 08:33:13 +02:00
Mateusz Zalega
c4d0e85604 USB: gadget: added a saner gadget downloader registration API
Preprocessor definitions and hardcoded implementation selection in
g_dnl core were replaced by a linker list made of (usb_function_name,
bind_callback) pairs.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Marek Vasut <marex@denx.de>
2014-05-05 08:21:47 +02:00
Mateusz Zalega
fad8edf0f7 am335x: dfu: disable DFU in am335x_evm SPL build
Future patches will make DFU too large to fit in this board's SPL build.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Tom Rini <trini@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2014-05-05 08:21:47 +02:00
Mateusz Zalega
41c2d60b3a ums: always initialize mmc before ums_disk_init()
In cases when MMC hadn't been initialized before, ie. by the user or other
subsystem, it was still uninitialized while UMS media capacity check,
leading to broken ums command.

UMS has to initialize resources it uses.

Tested on Samsung Goni.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Tested-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2014-05-05 08:21:47 +02:00
Mateusz Zalega
b7d4259af2 dfu: mmc: change offset base handling
Previously offsets handled by dfu_fill_entity_mmc(), defined in boards'
CONFIG_DFU_ALT were treated as hexadecimal regardless of their prefix,
which sometimes led to confusion. This patch forces usage of explicit
numerical base prefixes.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Tom Rini <trini@ti.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2014-05-05 08:20:56 +02:00
Mateusz Zalega
711b931f90 dfu: mmc: raw data write fix
When user attempted to perform a raw write using DFU (vide
dfu_fill_entity_mmc) with MMC interface not initialized before,
get_mmc_blk_size() reported invalid (zero) block size - it wasn't
possible to write ie. a new u-boot image.

This commit fixes that by initializing MMC device before use in
dfu_fill_entity_mmc().

While fixing initialization sequence, I had to change about half of
dfu_fill_entity_mmc's body, so I refactored it on the way to make it,
IMHO, considerably more comprehensible.

Being left as dead code, get_mmc_blk_size() was removed.

Tested on Samsung Goni.

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Tom Rini <trini@ti.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2014-05-05 08:00:28 +02:00
Mateusz Zalega
75504e9592 usb: dfu: fix boards wo USB cable detection
Former usb_cable_connected() patch broke compilation of boards which do
not support this feature.

I've renamed usb_cable_connected() to g_dnl_usb_cable_connected() and added
its default implementation to gadget downloader driver code. There's
only one driver of this kind and it's unlikely there'll be another, so
there's no point in keeping it in /common.

Previously this function was declared in usb.h. I've moved it, since
it's more appropriate to keep it in g_dnl.h - usb.h seems to be intended
for USB host implementation.

Existing code, confronted with default -EOPNOTSUPP return value,
continues as if the cable was connected.

CONFIG_USB_CABLE_CHECK was removed.

Change-Id: Ib9198621adee2811b391c64512f14646cefd0369
Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
2014-05-05 08:00:28 +02:00
Mateusz Zalega
6b423b752b part: header fix
Implementation made use of types defined in common.h, even though it
wasn't #included. It worked in circumstances when .c files included
every needed header (all).

Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Cc: Tom Rini <trini@ti.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2014-05-05 08:00:28 +02:00
Mateusz Zalega
07a2d42cd4 mmc: mmc header fix
Structure definition used type block_dev_desc_t, defined in part.h, which
wasn't included in mmc.h. It worked only in circumstances when common.h,
or another header using part.h was incuded in implementation files.

Change-Id: I5b203928b689887e3e78beb00a378955e0553eb7
Signed-off-by: Mateusz Zalega <m.zalega@samsung.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2014-05-05 08:00:28 +02:00
Tom Rini
52fded7b94 Merge branch 'next' of git://git.denx.de/u-boot-sh 2014-05-02 11:48:07 -04:00
Rob Herring
7904b70885 ARM: highbank: use default prompt
Since highbank is actually shared between Highbank and Midway platforms,
remove the Highbank name from the prompt and use the default.

Signed-off-by: Rob Herring <robh@kernel.org>
2014-05-02 11:43:25 +02:00
Rob Herring
ac9ae1333e ARM: highbank: use config_distro_defaults.h
Adapt highbank to use config_distro_defaults.h and remove the redundant
defines.

Signed-off-by: Rob Herring <robh@kernel.org>
2014-05-02 11:43:11 +02:00
Stephen Warren
2fc5dab2ed usb: gadget: allow ci_udc to build with new gadget framework
Allow ci_udc.o to be built when using the new(?) USB gadget framework,
as enabled by CONFIG_USB_GADGET.

Note that this duplicates the Makefile entry for ci_udc.o, since it's
also included inside #ifdef CONFIG_USB_ETHER. I'm not sure what that
define means; perhaps an old style of Ethernet-specific USB gadget
implementation?

I wonder if the line that this patch adds shouldn't be outside all of
the ifdefs, so it stands on its own, similar to how e.g. epautoconf.o
is shared between the two?

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-05-01 12:44:24 +02:00
Eric Nelson
a69214dc71 video: mxc_ipuv3_fb: stash frame buffer pointer in global data.
This patch updates the i.MX video driver to store the
frame-buffer address in the fb_base field of the global
data structure *gd.

By doing this, you can find the frame buffer address
using the 'bdinfo' command:

	U-Boot > bdinfo
	arch_number = 0x00000EB9
	...
	FB base     = 0x4F35F1C0

This is very useful when debugging display connections.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
2014-04-30 11:15:45 +02:00
Stephen Warren
a022c1e13c usb: ums: use only 1 buffer for CI_UDC
ci_udc.c allocates only a single buffer for each endpoint, which
ci_ep_alloc_request() returns as a hard-coded value rather than
dynamically allocating. Consequently, storage_common.c must limit
itself to using a single buffer at a time. Add a special case
to the definition of FSG_NUM_BUFFERS for this.

Another option would be to fix ci_ep_alloc_request() to dynamically
allocate the buffers like some/all(?) other device mode drivers do.
However, I don't think that ci_ep_queue() supports queueing up
multiple buffers either yet, and I'm not familiar enough with the
controller yet to implement that. As such, any attempt to use multiple
buffers simply results in data corruption and other errors.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-04-30 10:30:58 +02:00
Stephen Warren
fcf2ede190 usb: ci_udc: support variants with hostpc register
Tegra's USB controller appears to be a variant of the ChipIdea
controller; perhaps derived from it, or simply a different version of
the IP core to what U-Boot supports today.

In this variant, at least the following difference are present:
- Some registers are moved about.
- Setup transaction completion is reported in a separate 'epsetupstat'
  register, rather than in 'epstat' (which still exists, perhaps for
  other transaction types).
- USB connection speed is reported in a separate 'hostpc1_devlc'
  register, rather than 'portsc'.
- The registers used by ci_udc.c begin at offset 0x130 from the USB
  register base, rather than offset 0x140. However, this is handled
  by the associated EHCI controller driver, since the register address
  is stored in controller.ctrl->hcor.

Introduce define CONFIG_CI_UDC_HAS_HOSTPC to indicate which variant of
the controller should be supported. The "HAS_HOSTPC" part of this name
mirrors the similar "has_hostpc" field used by the Linux EHCI controller
core to represent the presence/absence of the hostpc1_devlc register.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-04-30 10:30:57 +02:00
Stephen Warren
0c51dc6db9 usb: ci_udc: make PHY initialization conditional
usb_gadget_register_driver() currently unconditionally programs PORTSC
to select a ULPI PHY. This is incorrect on at least the Tegra boards I
am testing with, which use a UTMI PHY for the OTG ports. Make the PHY
selection code conditional upon the specific EHCI controller that is in
use.

Ideally, I believe that the PHY initialization code should be part of
ehci_hcd_init() in the relevant EHCI controller driver, or some board-
specific function that ehci_hcd_init() calls.

For MX6, I'm not sure this PHY initialization code is correct even before
this patch, since ehci-mx6's ehci_hcd_init() already configures PORTSC to
a board-specific value, and it seems likely that the code in ci_udc.c is
incorrectly undoing this. Perhaps this is not an issue if the PHY
selection register bits aren't implemented on this instance of the MX6
USB controller?

ehci-mxs.c doens't appear to touch PORTSC, so this code is likely still
required there.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-04-30 10:30:57 +02:00
Stephen Warren
8aac6e9c53 usb: ci_udc: set ep->req.actual after transfer
At least drivers/usb/gadget/storage_common.c expects that ep->req.actual
contain the number of bytes actually transferred. (At least in practice,
I observed it failing to work correctly unless this was the case).

However, ci_udc.c modifies ep->req.length instead. I assume that .length
 is supposed to represent the allocated buffer size, whereas .actual is
supposed to represent the actual number of bytes transferred. In the OUT
transaction case, this may happen simply because the host sends a smaller
 packet than the max possible size, which is quite legal. In the IN case,
transferring fewer bytes than requested could presumably happen as an
error.

Modify handle_ep_complete() to write to .actual rather than modifying
.length.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-04-30 10:30:57 +02:00
Stephen Warren
f5c03006dd usb: ci_udc: Support larger packets
ci_ep_queue() currently only fills in the page0/page1 fields in the
queue item. If the buffer is larger than 4KiB (unaligned) or 8KiB
(page-aligned), then this prevents the HW from knowing where to write
the balance of the data.

Fix this by initializing all 5 pageN pointers, which allows up to
16KiB (potentially non-page-aligned) buffers.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-04-30 10:30:57 +02:00
Lukasz Majewski
672ad18c27 dfu:fix: Replace wrong return value with proper one
This patch remove always false (since we tested ret = 0) ternary operator
with ret value returned.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
2014-04-30 10:30:57 +02:00
andrey.konovalov@linaro.org
e6e493f341 exynos: usb: Fix data abort on boards w/o vbus-gpio node in the DT
Commit 4a271cb1b4 doesn't take into account that fdtdec_setup_gpio()
returns success when the gpio passed to it is FDT_GPIO_NONE (no
gpio node found in the fdtdec_decode_gpio() call). This results in
calling gpio_direction_output() on invalid gpio. For this reason
executing "usb start" command on Arndale causes data abort in the
ehci-exynos driver.

Add the fdt_gpio_isvalid() check to fix that problem.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Marek Vasut <marex@denx.de>
2014-04-30 10:30:57 +02:00
Rob Herring
078d7302ac usb: musb: fill in usb_gadget_unregister_driver
Add missing missing disconnect and unbind calls to the musb gadget driver's
usb_gadget_unregister_driver function. Otherwise, any gadget drivers fail
to uninitialize and run a 2nd time.

Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-30 10:30:57 +02:00
Rob Herring
52d45012ff usb: handle NULL table in usb_gadget_get_string
Allow a NULL table to be passed to usb_gadget_get_string for cases
when a string table may not be populated.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
2014-04-30 10:30:57 +02:00