| Commit message (Collapse) | Author | Age | Files | Lines |
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Fixes a linker error when OMAP I2C bus driver is compiled as a module:
ERROR: "i2c_register_board_info" [arch/arm/plat-omap/i2c.ko] undefined!
The I2C utility functions used for board initialization should be always
built-in.
Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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After my OMAP3 board has been running for a while, I'm seeing weird
latency traces like this:
sh-1574 0d.h2 153us : do_timer (tick_do_update_jiffies64)
sh-1574 0d.h2 153us : update_wall_time (do_timer)
sh-1574 0d.h2 153us!: omap_32k_read (update_wall_time)
sh-1574 0d.h2 1883us : update_xtime_cache (update_wall_time)
sh-1574 0d.h2 1883us : clocksource_get_next (update_wall_time)
sh-1574 0d.h2 1883us+: _spin_lock_irqsave (clocksource_get_next)
and after a while:
sh-17818 0d.h3 153us : do_timer (tick_do_update_jiffies64)
sh-17818 0d.h3 153us : update_wall_time (do_timer)
sh-17818 0d.h3 153us!: omap_32k_read (update_wall_time)
sh-17818 0d.h3 1915us : update_xtime_cache (update_wall_time)
sh-17818 0d.h3 1915us+: clocksource_get_next (update_wall_time)
sh-17818 0d.h3 1945us : _spin_lock_irqsave (clocksource_get_next)
Turns out that sched_clock() is using cyc2ns(), which returns NTP
adjusted time. The sched_clock() frequency should not be adjusted. The
patch deletes omap_32k_ticks_to_nsecs() and rewrites sched_clock()
to do the conversion using the constant multiplier.
Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Change the error to a warning.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-fixes
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Some of the rate selection logic in s3c64xx_setrate_clksrc uses what
appears to be parent clock selection logic. This patch corrects it.
I also added a check for overly large dividers to prevent them from
changing unrelated clocks.
Signed-off-by: Werner Almesberger <werner@openmoko.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Fix the following sparse warnings in arch/arm/plat-s3c64xx/irq.c
arch/arm/plat-s3c64xx/irq.c:210:23: warning: incorrect type in initializer (different address spaces)
arch/arm/plat-s3c64xx/irq.c:210:23: expected void *reg_base
arch/arm/plat-s3c64xx/irq.c:210:23: got void [noderef] <asn:2>*regs
arch/arm/plat-s3c64xx/irq.c:215:2: warning: incorrect type in argument 1 (different address spaces)
arch/arm/plat-s3c64xx/irq.c:215:2: expected void const volatile [noderef] <asn:2>*<noident>
arch/arm/plat-s3c64xx/irq.c:215:2: got void *
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Fix the following sparse warnings in s3c6400-clock.c:
39:12: warning: symbol 'clk_ext_xtal_mux' was not declared. Should it be static?
66:12: warning: symbol 'clk_fout_apll' was not declared. Should it be static?
81:19: warning: symbol 'clk_mout_apll' was not declared. Should it be static?
91:12: warning: symbol 'clk_fout_epll' was not declared. Should it be static?
106:19: warning: symbol 'clk_mout_epll' was not declared. Should it be static?
126:19: warning: symbol 'clk_mout_mpll' was not declared. Should it be static?
148:12: warning: symbol 'clk_dout_mpll' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The clock list for the USB host bus clock was in the wrong order,
move clk_48m to position 0.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The usb-host-bus clock should be named usb-bus-host.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The USB OHCI host device expects the IRQ definition to be named
IRQ_USBH, so rename the S3C64XX IRQ header to match.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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arch_initcall() runs after the machine init function which means that
any configuration of GPIO pins must currently be done later on, for
example in callbacks from drivers. Move the initialisation earlier in
order to allow machines to configure GPIOs directly in their init
functions rather than having to have a callback invoked later on.
Some other ARM platforms use this method. Other solutions for this
include providing a special interface for setting up GPIOs en masse,
adding callbacks to do the GPIO configuration from devices and doing
the GPIO configuration implicitly.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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It's an initcall and does not need to be exported.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Shuts up a warning.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The WM8580 driver registers itself as "wm8580" rather than "WM8580".
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Set the GPIO pin mode to external interrupt when configuring
an IRQ_EINT's IRQ type.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Fix build warnings due to struct i2c_board_info in <mach/platform.h>
Patch "5311/1: add core support for built in i2c bus" is causing 11 of
39 the build warnings with Kautobuild for ep93xx_defconfig on kernel
2.6.29-rc5-git4. This patch fixes it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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gcc seems to expect that lr isn't clobbered by mcount, because for a
function starting with:
static int func(void)
{
void *ra = __builtin_return_address(0);
printk(KERN_EMERG "__builtin_return_address(0) = %pS\n", ra)
...
the following assembler is generated by gcc 4.3.2:
0: e1a0c00d mov ip, sp
4: e92dd810 push {r4, fp, ip, lr, pc}
8: e24cb004 sub fp, ip, #4 ; 0x4
c: ebfffffe bl 0 <mcount>
10: e59f0034 ldr r0, [pc, #52]
14: e1a0100e mov r1, lr
18: ebfffffe bl 0 <printk>
Without this patch obviously __builtin_return_address(0) yields
func+0x10 instead of the return address of the caller.
Note this patch fixes a similar issue for the routines used with dynamic
ftrace even though this isn't currently selectable for ARM.
Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This data should be passed to the xor driver in order to initialize
the address decoding windows of the xor unit. without this patch, the
self tests of the xor will fail unless the address decoding windows were
initialized by the boot loader.
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
MIPS: Mark Eins: Fix configuration.
MIPS: Fix TIF_32BIT undefined problem when seccomp is disabled
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Bloody inconsiderate driver writers...
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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cpumask arg to the affinity function is now const, sort
that out through the irq_desc implementations.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Kills the 'value computed but not used' due to
leX_to_cpu.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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cpumask api needs to take a pointer to irq_desc[cpu].affinity
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Impact: cleanup, update to new cpumask API
Irq_desc.affinity and irq_desc.pending_mask are now cpumask_var_t's
so access to them should be using the new cpumask API.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Add braces around the macro arguments, else for example
"shl %r1, 5-3, %r2" would not expand to what you would assume.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Fix those compile warnings:
uaccess.h:244: warning: `struct pt_regs' declared inside parameter list
uaccess.h:244: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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- convert a few "if (xx) BUG();" to BUG_ON(xx)
- remove a few printk()s, as we get a backtrace with BUG_ON() anyway
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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Fix the following warning on x86_64:
LD vmlinux.o
MODPOST vmlinux.o
WARNING: vmlinux: 'memcpy' exported twice. Previous export was in vmlinux
For x86_64, this symbol is already exported from arch/um/sys-x86_64/ksyms.c.
Reported-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Tested-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It is currently impossible to run a user-mode linux machine inside another
user-mode linux (UML on UML). It breaks after a few instructions. When
it tries to check whether SYSEMU is installed (the inner) UML receives an
inconsistent result (from the outer UML).
This is the output of a broken attempt:
$ ./linux mem=256m ubd0=cow
Locating the bottom of the address space ... 0x0
Locating the top of the address space ... 0xc0000000
Core dump limits :
soft - 0
hard - NONE
Checking that ptrace can change system call numbers...OK
Checking ptrace new tags for syscall emulation...unsupported
Checking syscall emulation patch for ptrace...check_sysemu : expected SIGTRAP, got status = 256
$
The problem is the following:
PTRACE_SYSCALL/SINGLESTEP is currently managed inside arch_ptrace for ARCH=um.
PTRACE_SYSEMU/SUSEMU_SINGLESTEP is not captured in arch_ptrace's switch,
therefore it is erroneously passed back to ptrace_request (in
kernel/ptrace).
This simple patch simply forces ptrace to return an error on
PTRACE_SYSEMU/SUSEMU_SINGLESTEP as it is unsupported on ARCH=um, and fixes
the problem.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Renzo Davoli <renzo@cs.unibo.it>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sunhme: Fix qfe parent detection.
sparc64: Fix lost interrupts on sun4u.
sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS
jsflash: stop defining MAJOR_NR
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Based upon a report by Meelis Roos.
Sparc64 SBUS and PCI controllers use a combination of IMAP and ICLR
registers to manage device interrupts.
The IMAP register contains the "valid" enable bit as well as CPU
targetting information. Whereas the ICLR register is written with
zero at the end of handling an interrupt to reset the state machine
for that interrupt to IDLE so it can be sent again.
For PCI slot and SBUS slot devices we can have multiple interrupts
sharing the same IMAP register. There are individual ICLR registers
but only one IMAP register for managing those.
We represent each shared case with individual virtual IRQs so the
generic IRQ layer thinks there is only one user of the IRQ instance.
In such shared IMAP cases this is wrong, so if there are multiple
active users then a free_irq() call will prematurely turn off the
interrupt by clearing the Valid bit in the IMAP register even though
there are other active users.
Fix this by simply doing nothing in sun4u_disable_irq() and checking
IRQF_DISABLED during IRQ dispatch.
This situation doesn't exist in the hypervisor sun4v cases, so I left
those alone.
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Enable following features:
* MTD (PHYSMAP)
* LED (LEDS_GPIO)
* RBTX4939
* 7SEGLED
* IDE (IDE_TX4938, IDE_TX4939)
* SMC91X
* RTC_DRV_TX4939
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Current VR5500 processor support lacks of some functions which are
expected to be configured/synthesized on arch initialization.
Here're some VR5500A spec notes:
* All execution hazards are handled in hardware.
* Once VR5500A stops the operation of the pipeline by WAIT instruction,
it could return from the standby mode only when either a reset, NMI
request, or all enabled interrupts is/are detected. In other words,
if interrupts are disabled by Status.IE=0, it keeps in standby mode
even when interrupts are internally asserted.
Notes on WAIT: The operation of the processor is undefined if WAIT
insn is in the branch delay slot. The operation is also undefined
if WAIT insn is executed when Status.EXL and Status.ERL are set to 1.
* VR5500A core only implements the Load prefetch.
With these changes, it boots fine.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Xiaotian Feng <xiaotian.feng@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.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:
radeonfb/aty128fb: Disable broken early resume hook for PowerBooks
hvc_console: Remove tty->low_latency on pseries backends
powerpc: fix linkstation and storcenter compilation breakage
powerpc/4xx: Enable SERIAL_OF support by default for Virtex platforms
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Virtex FPGA designs have two serial port logic cores to choose from; the
simple uartlite, and the full featured uart16550. Both cores are in
common use so the defconfig should support both of them. Currently
only console on uartlite is supported in the defconfig. This patch adds
console support for the 16550 core.
The Virtex reference designs do not work without this patch.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Defining flash partition table in platform code is deprecated, and due to
recent changes linkstation and storcenter do not compile any more with
their default configurations because of undefined references to
physmap_set_partitions(). Instead of fixing them by using the correct
kernel configuration macro in preprocessor conditional, remove partition
table definitions altogether. Instead add support for partition definition
on the command-line and in device tree to the default configurations.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Impact: work around boot crash
Work around Intel Atom erratum AAH41 (probabilistically) - it's triggering
in the field.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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There isn't any mcfqspi.h in the tree, and without it everything inside the
#ifdef CONFIG_SPI is uncompilable.
Signed-off-by: Steven King <sfking@fdwdc.com>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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