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fsl_ep_fifo_status() should return error if _ep->desc is null.
Fixes: 75eaa498c9 (“usb: gadget: Correct NULL pointer checking in fsl gadget”)
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
goku_probe() goes to error label "err" and invokes goku_remove()
in case of failures of pci_enable_device(), pci_resource_start()
and ioremap(). goku_remove() gets a device from
pci_get_drvdata(pdev) and works with it without any checks, in
particular it dereferences a corresponding pointer. But
goku_probe() did not set this device yet. So, one can expect
various crashes. The patch moves setting the device just after
allocation of memory for it.
Found by Linux Driver Verification project (linuxtesting.org).
Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Pull ARM SoC platform updates from Olof Johansson:
"SoC changes, a substantial part of this is cleanup of some of the
older platforms that used to have a bunch of board files.
In particular:
- Remove non-DT i.MX platforms that haven't seen activity in years,
it's time to remove them.
- A bunch of cleanup and removal of platform data for TI/OMAP
platforms, moving over to genpd for power/reset control (yay!)
- Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
closer to multiplatform support (not quite there yet, but getting
close).
There are a few other changes too, smaller fixlets, etc. For new
platform support, the primary ones are:
- New SoC: Hisilicon SD5203, ARM926EJ-S platform.
- Cpufreq support for i.MX7ULP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
ARM: mstar: Select MStar intc
ARM: stm32: Replace HTTP links with HTTPS ones
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
ARM: omap3: enable off mode automatically
clk: imx: imx35: Remove mx35_clocks_init()
clk: imx: imx31: Remove mx31_clocks_init()
clk: imx: imx27: Remove mx27_clocks_init()
ARM: imx: Remove unused definitions
ARM: imx35: Retrieve the IIM base address from devicetree
ARM: imx3: Retrieve the AVIC base address from devicetree
ARM: imx3: Retrieve the CCM base address from devicetree
ARM: imx31: Retrieve the IIM base address from devicetree
ARM: imx27: Retrieve the CCM base address from devicetree
ARM: imx27: Retrieve the SYSCTRL base address from devicetree
ARM: s3c64xx: bring back notes from removed debug-macro.S
ARM: s3c24xx: fix Wunused-variable warning on !MMU
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
MAINTAINERS: mark linux-samsung-soc list non-moderated
ARM: imx: Remove remnant board file support pieces
...
Felipe writes:
USB: changes for v5.10 merge window
Most of changes are on dwc3 (38.8%) with cdns3 falling close
behind (24.1%).
The biggest changes here are a series of non-critical fixes to corner
cases on dwc3, produced by Thinh N, and a series of major improvements
to cdns3 produced by Peter C.
We also have the traditional set of new device support (Intel Keem
Bay, Hikey 970) on dwc3. A series of sparse/coccinelle and checkpatch
fixes on dwc3 by yours truly and a set of minor changes all over the
stack.
* tag 'usb-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (117 commits)
usb: dwc2: Fix INTR OUT transfers in DDMA mode.
usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs
usb: dwc2: override PHY input signals with usb role switch support
dt-bindings: usb: dwc2: add optional usb-role-switch property
usb: dwc3: of-simple: Add compatible string for Intel Keem Bay platform
dt-bindings: usb: Add Intel Keem Bay USB controller bindings
usb: dwc3: gadget: Support up to max stream id
usb: dwc3: gadget: Return early if no TRB update
usb: dwc3: gadget: Keep TRBs in request order
usb: dwc3: gadget: Revise setting IOC when no TRB left
usb: dwc3: gadget: Look ahead when setting IOC
usb: dwc3: gadget: Allow restarting a transfer
usb: bdc: remove duplicated error message
usb: dwc3: Stop active transfers before halting the controller
usb: cdns3: gadget: enlarge the TRB ring length
usb: cdns3: gadget: sg_support is only for DEV_VER_V2 or above
usb: cdns3: gadget: need to handle sg case for workaround 2 case
usb: cdns3: gadget: handle sg list use case at completion correctly
usb: cdns3: gadget: add CHAIN and ISP bit for sg list use case
usb: cdns3: gadget: improve the dump TRB operation at cdns3_ep_run_transfer
...
in case devm_platform_ioremap_resource() fails, that function already
prints a relevant error message which renders the driver's dev_err()
redundant. Let's remove the unnecessary message and, while at that,
also make sure to pass along the error value returned by
devm_platform_ioremap_resource() instead of always returning -ENOMEM.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
[balbi@kernel.org : improved commit log]
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Probe deferral is an expected condition and can happen multiple times
during boot. Make sure not to output an error message in that case
because they are not useful.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Align parameters on subsequent lines with the parameters on the first
line for consistency.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
There is a spelling mistake in a literal string. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Make sure to use consistent spelling and formatting in error messages.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Current UDC core connects gadget during the loading gadget flow
(udc_bind_to_driver->usb_udc_connect_control), but for
platforms which do not connect gadget if the VBUS is not there,
they call usb_gadget_disconnect, but the gadget is not connected
at this time, notify disconnecton for the gadget driver is meaningless
at this situation.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Remove unused 'udc' variable to fix compile warnings:
drivers/usb/gadget/udc/s3c2410_udc.c: In function 's3c2410_udc_dequeue':
drivers/usb/gadget/udc/s3c2410_udc.c:1268:22: warning: variable 'udc' set but not used [-Wunused-but-set-variable]
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Like net2280 (on which it was based), the net2272 UDC driver has a
problem with leaking memory along some of its failure pathways. It
also has another problem, not previously noted, in that some of the
failure pathways will call usb_del_gadget_udc() without first calling
usb_add_gadget_udc_release(). And it leaks memory by calling kfree()
when it should call put_device().
Until now it has been impossible to handle the memory leaks, because of
lack of support in the UDC core for separately initializing and adding
gadgets, or for separately deleting and freeing gadgets. An earlier
patch in this series adds the necessary support, making it possible to
fix the outstanding problems properly.
This patch adds an "added" flag to the net2272 structure to indicate
whether or not the gadget has been registered (and thus whether or not
to call usb_del_gadget()), and it fixes the deallocation issues by
calling usb_put_gadget() at the appropriate places.
A similar memory leak issue, apparently never before recognized, stems
from the fact that the driver never initializes the drvdata field in
the gadget's embedded struct device! Evidently this wasn't noticed
because the pointer is only ever used as an argument to kfree(), which
doesn't mind getting called with a NULL pointer. In fact, the drvdata
for gadget device will be written by usb_composite_dev structure if
any gadget class is loaded, so it needs to use usb_gadget structure
to get net2280 private data.
CC: Anton Vasilyev <vasilyev@ispras.ru>
CC: Evgeny Novikov <novikov@ispras.ru>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
As Anton and Evgeny have noted, the net2280 UDC driver has a problem
with leaking memory along some of its failure pathways. It also has
another problem, not previously noted, in that some of the failure
pathways will call usb_del_gadget_udc() without first calling
usb_add_gadget_udc_release(). And it leaks memory by calling kfree()
when it should call put_device().
Previous attempts to fix the problems have failed because of lack of
support in the UDC core for separately initializing and adding
gadgets, or for separately deleting and freeing gadgets. The previous
patch in this series adds the necessary support, making it possible to
fix the outstanding problems properly.
This patch adds an "added" flag to the net2280 structure to indicate
whether or not the gadget has been registered (and thus whether or not
to call usb_del_gadget()), and it fixes the deallocation issues by
calling usb_put_gadget() at the appropriate point.
A similar memory leak issue, apparently never before recognized, stems
from the fact that the driver never initializes the drvdata field in
the gadget's embedded struct device! Evidently this wasn't noticed
because the pointer is only ever used as an argument to kfree(), which
doesn't mind getting called with a NULL pointer. In fact, the drvdata
for gadget device will be written by usb_composite_dev structure if
any gadget class is loaded, so it needs to use usb_gadget structure
to get net2280 private data.
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Anton Vasilyev <vasilyev@ispras.ru>
Reported-by: Evgeny Novikov <novikov@ispras.ru>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The routines used by the UDC core to interface with the kernel's
device model, namely usb_add_gadget_udc(),
usb_add_gadget_udc_release(), and usb_del_gadget_udc(), provide access
to only a subset of the device model's full API. They include
functionality equivalent to device_register() and device_unregister()
for gadgets, but they omit device_initialize(), device_add(),
device_del(), get_device(), and put_device().
This patch expands the UDC API by adding usb_initialize_gadget(),
usb_add_gadget(), usb_del_gadget(), usb_get_gadget(), and
usb_put_gadget() to fill in the gap. It rewrites the existing
routines to call the new ones.
CC: Anton Vasilyev <vasilyev@ispras.ru>
CC: Evgeny Novikov <novikov@ispras.ru>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
udc_controller->irq is "unsigned int" always >= 0, but platform_get_irq may
return little than zero. So "dc_controller->irq < 0" condition is never
accessible.
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This switches the PCH UDC driver to use GPIO descriptors. The way
this is supposed to be used is confusing. The code contains the
following:
/* GPIO port for VBUS detecting */
static int vbus_gpio_port = -1; /* GPIO port number (-1:Not used) */
So a hardcoded GPIO number in the code. Further the probe() path
very clearly will exit if the GPIO is not found, so this driver
can only be configured by editing the code, hard-coding a GPIO
number into this variable.
This is simply not how we do things. My guess is that this is
used in products by patching a GPIO number into this variable and
shipping a kernel that is compile-time tailored for the target
system.
I switched this mechanism to using a GPIO descriptor associated
with the parent PCI device. This can be added by using the 16bit
subsystem ID or similar to identify which exact machine we are
running on and what GPIO is present on that machine, and then
add a GPIO descriptor using gpiod_add_lookup_table() from
<linux/gpio/machine.h>. Since I don't have any target systems
I cannot add this but I'm happy to help. I put in a FIXME so
the people actually using this driver knows what to do.
Cc: Felipe Balbi <balbi@kernel.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This is a follow-on patch for commit a23be4ed8f ("usb: gadget: aspeed:
improve vhub port irq handling"): for_each_set_bit() is replaced with
simple for() loop because for() loop runs faster on ASPEED BMC.
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The UDC NET2272 driver includes <linux/gpio.h> but does not
use any symbols from this file, so drop the include.
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The DPRAM memory from the USB High Speed Device Port (UDPHS) hardware
block was increased. This patch updates the endpoint allocation for sam9x60
to take advantage of this larger memory. At the same time the
constraint to allocate the endpoints in order was lifted. To handle old
and new hardware in the same driver the ep_prealloc was added.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Instead of trying to match every possible compatible use
of_find_matching_node_and_match() and pass the compatible array.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Samsung S3C24xx and S3C64xx machine code cleanup for v5.10
Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos. This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.
The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform. The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory. However this is step forward for multiplatform or at least
to keep this code still maintainable.
This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.
* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
ARM: s3c: Cleanup from old plat-samsung include
ARM: s3c: make headers local if possible
ARM: s3c: move into a common directory
ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
cpufreq: s3c24xx: move low-level clk reg access into platform code
cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
ARM: s3c: remove cpufreq header dependencies
cpufreq: s3c24xx: split out registers
fbdev: s3c2410fb: remove mach header dependency
ARM: s3c24xx: bast: avoid irq_desc array usage
ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
ARM: s3c24xx: include mach/irqs.h where needed
ARM: s3c24xx: move s3cmci pinctrl handling into board files
ARM: s3c24xx: move iis pinctrl config into boards
ARM: s3c24xx: move spi fiq handler into platform
ARM: s3c: adc: move header to linux/soc/samsung
ARM: s3c24xx: move irqchip driver back into platform
ARM: s3c24xx: move regs-spi.h into spi driver
ARM: s3c64xx: remove mach/hardware.h
...
Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
Remove unused 'udc' variable to fix compile warnings:
drivers/usb/gadget/udc/s3c2410_udc.c: In function 's3c2410_udc_dequeue':
drivers/usb/gadget/udc/s3c2410_udc.c:1268:22: warning: variable 'udc' set but not used [-Wunused-but-set-variable]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200731074122.6484-1-krzk@kernel.org
There is no real phy driver, so s3c-hsudc just pokes the registers
itself. Improve this a little by making it a platform data callback
like we do for gpios.
There is only one board using this driver, and it's unlikely
that another would be added, so this is a minimal workaround.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-9-krzk@kernel.org
[krzk: Include regs-s3c2443-clock.h in ifdef to fixup build on s3c6400]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Pull USB/Thunderbolt updates from Greg KH:
"Here is the large set of USB and Thunderbolt patches for 5.9-rc1.
Nothing really magic/major in here, just lots of little changes and
updates:
- clean up language usages in USB core and some drivers
- Thunderbolt driver updates and additions
- USB Gadget driver updates
- dwc3 driver updates (like always...)
- build with "W=1" warning fixups
- mtu3 driver updates
- usb-serial driver updates and device ids
- typec additions and updates for new hardware
- xhci debug code updates for future platforms
- cdns3 driver updates
- lots of other minor driver updates and fixes and cleanups
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (330 commits)
usb: common: usb-conn-gpio: Register charger
usb: mtu3: simplify mtu3_req_complete()
usb: mtu3: clear dual mode of u3port when disable device
usb: mtu3: use MTU3_EP_WEDGE flag
usb: mtu3: remove useless member @busy in mtu3_ep struct
usb: mtu3: remove repeated error log
usb: mtu3: add ->udc_set_speed()
usb: mtu3: introduce a funtion to check maximum speed
usb: mtu3: clear interrupts status when disable interrupts
usb: mtu3: reinitialize CSR registers
usb: mtu3: fix macro for maximum number of packets
usb: mtu3: remove unnecessary pointer checks
usb: xhci: Fix ASMedia ASM1142 DMA addressing
usb: xhci: define IDs for various ASMedia host controllers
usb: musb: convert to devm_platform_ioremap_resource_byname
usb: gadget: tegra-xudc: convert to devm_platform_ioremap_resource_byname
usb: gadget: r8a66597: convert to devm_platform_ioremap_resource_byname
usb: dwc3: convert to devm_platform_ioremap_resource_byname
usb: cdns3: convert to devm_platform_ioremap_resource_byname
usb: phy: am335x: convert to devm_platform_ioremap_resource_byname
...
Pull tasklets API update from Kees Cook:
"These are the infrastructure updates needed to support converting the
tasklet API to something more modern (and hopefully for removal
further down the road).
There is a 300-patch series waiting in the wings to get set out to
subsystem maintainers, but these changes need to be present in the
kernel first. Since this has some treewide changes, I carried this
series for -next instead of paining Thomas with it in -tip, but it's
got his Ack.
This is similar to the timer_struct modernization from a while back,
but not nearly as messy (I hope). :)
- Prepare for tasklet API modernization (Romain Perier, Allen Pais,
Kees Cook)"
* tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
tasklet: Introduce new initialization API
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
usb: gadget: udc: Avoid tasklet passing a global
Pull ARM SoC updates from Arnd Bergmann:
"These are mostly cosmetic changes and minor bugfixes for the SoC
specific code, across the 32-bit at91, mvebu, davinci, samsung, and
omap platforms.
The main notable changes are for the Samsung Exynos platform, which
sees a rewrite of gpio handling and a change to restore and adds a
workaround for a problem with cpuidle support"
* tag 'arm-soc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
MAINTAINERS: arm/amlogic: add designated reviewers
ARM: davinci: dm646x-evm: Simplify error handling in 'evm_sw_setup()'
ARM: davinci: Fix trivial spelling
ARM: davinci: Replace HTTP links with HTTPS ones
ARM: s3c24xx: Replace HTTP links with HTTPS ones
ARM: orion/gpio: Make use of for_each_requested_gpio()
ARM: at91: Replace HTTP links with HTTPS ones
ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
ARM: rpc: Change blacklist to quirklist in ecode.c file
ARM: OMAP: Replace HTTP links with HTTPS ones
ARM: s3c24xx: leds: Convert to use GPIO descriptors
udc: lpc32xx: mark local function static
ARM: exynos: MCPM: Restore big.LITTLE cpuidle support
ARM: exynos: clear L310_AUX_CTRL_FULL_LINE_ZERO in default l2c_aux_val
This converts all the existing DECLARE_TASKLET() (and ...DISABLED)
macros with DECLARE_TASKLET_OLD() in preparation for refactoring the
tasklet callback type. All existing DECLARE_TASKLET() users had a "0"
data argument, it has been removed here as well.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
There's no reason for the tasklet callback to set an argument since it
always uses a global. Instead, use the global directly, in preparation
for converting the tasklet subsystem to modern callback conventions.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
The BDC clock is optional and we may get an -EPROBE_DEFER error code
which would not be propagated correctly, fix this by using
devm_clk_get_optional().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
GISB bus error kernel panics have been observed during S2 transition
tests on the 7271t platform. The errors are a result of the BDC
interrupt handler trying to access BDC register space after the
system's suspend callbacks have completed.
Adding a suspend hook to the BDC driver that halts the controller before
S2 entry thus preventing unwanted access to the BDC register space during
this transition.
Signed-off-by: Danesh Petigara <danesh.petigara@broadcom.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Version v1.0.40 of the Android host ADB software increased maximum
transfer sizes from 256K to 1M. Since the STB ADB gadget driver
requests only 16K at a time, the BDC driver ran out of buffer
descriptors (BDs) if the queuing happens faster than the incoming
16K transfers. This issue is fixed by doubling the number of BDs
that can be queued so that the entire 1M request can be queued
without running out of buffers.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
