| Commit message (Collapse) | Author | Age | Files | Lines |
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This requires three changes:
1) Remove !SPARC restriction in Kconfig.
2) Move Sparc specific serial drivers before 8250, so that serial
console devices don't change names on us, even if 8250 finds
devices.
3) Since the Sparc specific serial drivers try to use the
same major/minor device namespace as 8250, some coordination
is necessary. Use the sunserial_*() layer routines to allocate
minor number space within TTY_MAJOR when CONFIG_SPARC.
This has no effect on other platforms.
Thanks to Josip Rodin for bringing up this issue and testing
plus debugging various revisions of this patch.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove some inlines from various functions that are called once, are too
big to inline, or are called only from slow path code. This saves around
300 bytes of code for me.
Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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<rmk> talking about leaks - I noticed that the 'check return of
pci_enable_dev()' in the 8250 pci resume function finally made it in
despite my objections against it (causing stuff in higher levels to
leak).
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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interrupts in PIO mode
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We now use the sir_dev/irtty_sir/uart/bfin_serial drivers framework
to monitor the TX status.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Disable irq and return immediately.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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the serial driver
move common variables out of serial headers and into the serial driver and
rename "nr_ports" to "nr_active_ports" so as to easily differentiate
between BFIN_UART_NR_PORTS (the # of available) and nr_ports (the # of enabled)
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch contains the scheduled removal of the obsolete
SERIAL_COLDFIRE driver.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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alloc_tty_driver is called at the beginning of the function containing the
lines of code shown in the patch. Thus, put_tty_driver is needed before
returning in the error handling code.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@nr exists@
local idexpression x;
expression E,f;
position p1,p2,p3;
identifier l;
statement S;
@@
x = alloc_tty_driver@p1(...)
...
if (x == NULL) S
... when != E = x
when != put_tty_driver(x)
when != goto l;
(
return \(0\|x\);
|
return@p3 ...;
)
@script:python@
p1 << nr.p1;
p3 << nr.p3;
@@
print "%s: call on line %s not freed or saved before return on line %s" % (p1[0].file,p1[0].line,p3[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits)
[ARM] 5300/1: fixup spitz reset during boot
[ARM] 5295/1: make ZONE_DMA optional
[ARM] 5239/1: Palm Zire 72 power management support
[ARM] 5298/1: Drop desc_handle_irq()
[ARM] 5297/1: [KS8695] Fix two compile-time warnings
[ARM] 5296/1: [KS8695] Replace macro's with trailing underscores.
[ARM] pxa: allow multi-machine PCMCIA builds
[ARM] pxa: add preliminary CPUFREQ support for PXA3xx
[ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h
[ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c
[ARM] pxa/zylonite: add support for USB OHCI
[ARM] ohci-pxa27x: use ioremap() and offset for register access
[ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
[ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
[ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
[ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
[ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c
[ARM] pxa: simplify DMA register definitions
[ARM] pxa: make additional DCSR bits valid for PXA3xx
[ARM] pxa: move i2c register and bit definitions into i2c-pxa.c
...
Fixed up conflicts in
arch/arm/mach-versatile/core.c
sound/soc/pxa/pxa2xx-ac97.c
sound/soc/pxa/pxa2xx-i2s.c
manually.
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Merge branch 'davinci' into devel
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Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/corgi.c
arch/arm/mach-pxa/include/mach/hardware.h
arch/arm/mach-pxa/spitz.c
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Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/pxa25x.c
arch/arm/mach-pxa/pxa27x.c
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Adds hardware CTSRTS control for pxa serial devices through
termios controls.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Conflicts:
arch/arm/Kconfig
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The function ks8695uart_set_termios() would cause an unbalanced
enable_irq() generated message to be printk()ed. This is because
there was no book keeping support to remember if the calls to
enable_irq() and disable_irq() were balanced for the modem
control irq.
Signed-off-by: Dick Hollenbeck <dick@softplc.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This problem seems to be unnoticed so far:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b3b708fa2780cd2b5d8266a8f0c3a1cab364d4d2
has changed the serial core behavior to not to suspend the port if the
device is enabled as a wakeup source. If the AT91 system goes to slow
clock mode, the port should be suspended always and the clocks should be
switched off. The patch attached updates the atmel_serial driver to match
the changes in serial core.
Also, the interrupts are disabled when the clock is disabled. If we
disable the clock with interrupts enabled, an interrupt may get stuck. If
this is the DBGU interrupt, this blocks the OR logic at system controller
and thus all other sysc interrupts.
Signed-off-by: Anti Sullin <anti.sullin@artecdesign.ee>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Michael Trimarchi <trimarchimichael@yahoo.it>
Cc: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Conflicts:
arch/sparc64/kernel/pci_psycho.c
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git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6.git
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The interrupt handler for muxed interrupts (imx2/imx3) was calling
the rts handling subroutine if the RTSS bit was set.
(Which indicates the status of the RTS line), leading to an
interrupt flood on RTS bit low.
This patch fixes the problem by looking at the RTSD bit instead,
indicating a change in the RTS line.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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RX in i.MX27 and i.MX31 UART lines does not work unless the
"RXD Muxed Input Select" bit is set on i.MX27 and i.MX31 processors.
This patch sets the missing RXD mux bit in the UCR3 register.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Adds extra "out" label to probe function after calling .init form platform data.
Because .init can return error number caused by gpio request fail.
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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As suggested by Stephen Rothwell.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore
remove the dead code associated with !CONFIG_PPC_MERGE.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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We're currently passing NULL, and really shouldn't be.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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With the change to device tree based setup we no longer need the explicit
Kconfig options for each SCC{1,4} or SMC{1,2} port.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Recent changes to tighten the check for UARTs that don't correctly
re-assert THRE (01c194d9278efc15d4785ff205643e9c0bdcef53: "serial 8250:
tighten test for using backup timer") caused problems when such a UART was
opened for the second time - the bug could only successfully be detected
at first initialization. For users of this version of this particular
UART IP it is fatal.
This patch stores the information about the bug in the bugs field of the
port structure when the port is first started up so subsequent opens can
check this bit even if the test for the bug fails.
David Brownell: "My own exposure to this is that the UART on DaVinci
hardware, which TI allegedly derived from its original 16550 logic, has
periodically gone from working to unusable with the mainline 8250.c ...
and back and forth a bunch. Currently it's "unusable", a regression from
some previous versions. With this patch from Will, it's usable."
Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Alex Williamson <alex.williamson@hp.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Cc: <stable@kernel.org> [2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Bryan Wu <cooloney@kernel.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits)
[ARM] 5191/1: ARM: remove CVS keywords
[ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified
[ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16
[ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD
[ARM] 5198/1: PalmTX: PCMCIA fixes
[ARM] Fix a pile of broken watchdog drivers
[ARM] update mach-types
[ARM] 5196/1: fix inline asm constraints for preload
[ARM] 5194/1: update .gitignore
[ARM] add proc-macros.S include to proc-arm940 and proc-arm946
[ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags
[ARM] 5193/1: Wire up missing syscalls
[ARM] traps: don't call undef hook functions with spinlock held
[ARM] 5183/2: Provide Poodle LoCoMo GPIO names
[ARM] dma-mapping: provide sync_range APIs
[ARM] dma-mapping: improve type-safeness of DMA translations
[ARM] Kirkwood: instantiate the orion_spi driver in the platform code
[ARM] prevent crashing when too much RAM installed
[ARM] Kirkwood: Instantiate mv_xor driver
[ARM] Orion: Instantiate mv_xor driver for 5182
...
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into for-rmk
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk
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The SERIAL_SAMSUNG needs SERIAL_CORE but doesn't select it, leading to a
build failure. Adding a 'select SERIAL_CORE' cure the trouble.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Handle stack trace attempts before irqstacks are setup.
sparc64: Implement IRQ stacks.
sparc: remove include of linux/of_device.h from asm/of_device.h
sparc64: Fix recursion in stack overflow detection handling.
sparc/drivers: use linux/of_device.h instead of asm/of_device.h
sparc64: Don't MAGIC_SYSRQ ifdef smp_fetch_global_regs and support code.
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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It now compiles with the tty changes but isn't tested (which has to be
better than not compiling..
Closes bug #11218
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Blackfin peers into the ldisc in an odd way for IRDA snooping which
therefore got missed. Simple enough fix.
Closes bug #11233
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
mm/hugetlb.c must #include <asm/io.h>
video: Fix up hp6xx driver build regressions.
sh: defconfig updates.
sh: Kill off stray mach-rsk7203 reference.
serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
sh: Move out individual boards without mach groups.
sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
sh: Allow SH-3 and SH-5 to use common headers.
sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
sh/maple: clean maple bus code
sh: More header path fixups for mach dir refactoring.
sh: Move out the solution engine headers to arch/sh/include/mach-se/
sh: I2C fix for AP325RXA and Migo-R
sh: Shuffle the board directories in to mach groups.
sh: dma-sh: Fix up dreamcast dma.h mach path.
sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
sh: Add ARCH_DEFCONFIG entries for sh and sh64.
sh: Fix compile error of Solution Engine
sh: Proper __put_user_asm() size mismatch fix.
sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
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As noted by Manuel:
Commit c63847a3621d2bac054f5709783860ecabd0ee7e ("sh: Add
SCIF2 support for SH7763.") broke build with CONFIG_EARLY_PRINTK
enabled for me (SH7760):
CC arch/sh/kernel/early_printk.o
/mnt/work/sh7760/kernel/linux-2.6.git/arch/sh/kernel/early_printk.c: In function 'scif_sercon_putc':
/mnt/work/sh7760/kernel/linux-2.6.git/arch/sh/kernel/early_printk.c:84: error: implicit declaration of function 'sci_SCFDR_in'
Move the SH7763 definitions out on their own, so they don't create additional
confusion within the SH7760/SH7780/SH7785 block. Restore the deleted
SCFDR definition for these parts.
Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3)
powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs
powerpc: Fix ptrace buffer size for VSX
powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes
ide/powermac: Fix use of uninitialized pointer on media-bay
powerpc: Allow non-hcall return values for lparcfg writes
ipmi/powerpc: Use linux/of_{device,platform}.h instead of asm
powerpc/fsl: proliferate simple-bus compatibility to soc nodes
Documentation: remove old sbc8260 board specific information
cpm2: Rework baud rate generators configuration to support external clocks.
powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC
cpm_uart: Add generic clock API support to set baudrates
cpm_uart: Modem control lines support
powerpc: implement GPIO LIB API on CPM1 Freescale SoC.
cpm2: Implement GPIO LIB API on CPM2 Freescale SoC.
powerpc: Fix 8xx build failure
powerpc: clean up the Book-E HW watchpoint support
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This patch introduces baudrate setting support via the generic clock API.
When present the optional device tree clock property is used instead of
fsl-cpm-brg. Platforms can then define complex clock schemes, to output
the serial clock on an external pin for instance.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This patch replaces the get_mctrl/set_mctrl stubs with modem control line
read/write access through the GPIO lib.
Available modem control lines are described in the device tree using GPIO
bindings. The driver expect a GPIO pin for each of the CTS, RTS, DCD, DSR,
DTR and RI signals. Unused control lines can be left out.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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