Merge branch 'devel-omap5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/newsoc
From Tony Lindgren <tony@atomide.com>:
This branch contains minimal support for omap5 to boot to a
console without clock framework support. This branch depends
on omap-cleanup-part2-for-v3.6.
* 'devel-omap5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: Kconfig update to support additional GPIOs in OMAP5
ARM: OMAP5: Add the build support
arm/dts: OMAP5: Add omap5 dts files
ARM: OMAP5: board-generic: Add device tree support
ARM: omap2+: board-generic: clean up the irq data from board file
ARM: OMAP5: Add SMP support
ARM: OMAP5: Add the WakeupGen IP updates
ARM: OMAP5: l3: Add l3 error handler support for omap5
ARM: OMAP5: gpmc: Update gpmc_init()
ARM: OMAP5: timer: Add clocksource, clockevent support
ARM: OMAP5: Add minimal support for OMAP5430 SOC
ARM: OMAP5: id: Add cpu id for ES versions
ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme
ARM: OMAP2+: Move stubbed secure_sram_reserve function to a common.c and call it __weak
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
You'll find in this patch set the nineth version of the initial
support for a new family of ARMv7-compatible Marvell SoCs.
As for the previous releases, both the Armada 370 and the Armada XP
SoCs are supported in this directory, and we are able to build a
single kernel image that boots on both SoCs. Both SoCs use the PJ4B
processor, a Marvell-developed ARM core that implements the ARMv7
instruction set. We are currently using Marvell evaluation boards for
both of those SoCs, and the support for those boards is added in this
patch set.
This patch set, and the support for those SoCs, started as a
collaborative effort from Marvell engineers (who have done the initial
development work) and Free Electrons engineers (who are reshaping the
code for mainline submission, adding device tree support, etc.). This
effort has also received contributions from Ben Dooks from Codethink.
* mvebu/newsoc:
ARM: mvebu: MPIC: read number of interrupts from control register
arm: mach-mvebu: add entry to MAINTAINERS
arm: mach-mvebu: add compilation/configuration change
arm: mach-mvebu: add defconfig
arm: mach-mvebu: add documentation for new device tree bindings
arm: mach-mvebu: add support for Armada 370 and Armada XP with DT
arm: mach-mvebu: add source files
arm: mach-mvebu: add header
clocksource: time-armada-370-xp: Marvell Armada 370/XP SoC timer driver
Changes from Arnd
* Pulled from git://github.com/Marvell-Semi/EBU_mainline_public.git mvebu_for-next-V9
* rebased onto v3.5-rc5 because it was originally based on
an old arm-soc/for-next branch
The new mach-mvebu directory will be maintained by Andrew Lunn and
Jason Cooper (as the existing maintainers for previous Marvell EBU
SoCs) together with Grégory Clément for the Armada 370/XP SoCs.
Thomas Petazzoni [Wed, 13 Jun 2012 17:01:28 +0000 (19:01 +0200)]
arm: mach-mvebu: add support for Armada 370 and Armada XP with DT
[ben.dooks@codethink.co.uk: ensure error check on of_property_read_u32]
[ben.dooks@codethink.co.uk: use mpic address instead of bus-unit's ]
[ben.dooks@codethink.co.uk: BUG_ON() if the of_iomap() fails for mpic]
[ben.dooks@codethink.co.uk: move mpic per-cpu register base ]
[ben.dooks@codethink.co.uk: number fetch should use irqd_to_hwirq()]
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Lior Amsalem <alior@marvell.com> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Yehuda Yitschak <yehuday@marvell.com> Tested-by: Lior Amsalem <alior@marvell.com>
ARM: Kconfig update to support additional GPIOs in OMAP5
OMAP5 has 8 GPIO banks so that there are 32x8 = 256 GPIOs.
In order for the gpiolib to detect and initialize these
additional GPIOs and other TWL GPIOs, ARCH_NR_GPIO is set
to 512 instead of present 256.
R Sricharan [Tue, 5 Jun 2012 11:01:06 +0000 (16:31 +0530)]
ARM: omap2+: board-generic: clean up the irq data from board file
Move the irq_match arrays and the irq init functions of OMAP 2,3
and 4 based boards out of board-generic.c file and also rename the
irq init function to match the interrupt controller present in
the SOCs.
This is a preparatory patch to add the OMAP5 evm board's irq init
support with device tree.
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
OMAP4 and OMAP5 share same WakeupGen IP with below few udpates on OMAP5.
- Additional 32 interrupt support is added w.r.t OMAP4 design.
- The AUX CORE boot registers are now made accessible from non-secure SW.
- SAR offset are changed and PTMSYNC* registers are removed from SAR.
Patch updates the WakeupGen code accordingly.
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
R Sricharan [Fri, 4 Nov 2011 10:22:59 +0000 (15:52 +0530)]
ARM: OMAP5: l3: Add l3 error handler support for omap5
The l3 interconnect ip is same for OMAP4 and OMAP5.
So reuse the l3 error handler error code for OMAP5
as well. Also a few targets has been newly added for
OMAP5. So updating the driver for that here.
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
R Sricharan [Tue, 5 Jun 2012 10:51:32 +0000 (16:21 +0530)]
ARM: OMAP5: Add minimal support for OMAP5430 SOC
OMAP5430 is Texas Instrument's SOC based on ARM Cortex-A15 SMP
architecture. It's a dual core SOC with GIC used for interrupt
handling and with an integrated L2 cache controller.
OMAP5432 is another variant of OMAP5430, with a
memory controller supporting DDR3 and SATA.
Patch includes:
- The machine specific headers and sources updates.
- Platform header updates.
- Minimum initialisation support for serial.
- IO table init
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
R Sricharan [Thu, 10 May 2012 08:47:22 +0000 (14:17 +0530)]
ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme
OMAP socs has a legacy and a highlander version of the
32k sync counter IP. The register offsets vary between the
highlander and the legacy scheme. So use the 'SCHEME'
bits(30-31) of the revision register to distinguish between
the two versions and choose the CR register offset accordingly.
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
R Sricharan [Thu, 10 May 2012 15:57:20 +0000 (21:27 +0530)]
ARM: OMAP2+: Move stubbed secure_sram_reserve function to a common.c and call it __weak
omap_secure_ram_reserve_memblock is stubbed for OMAP1,2 only builds using a
ifdef check. But this results in adding CONFIG_ARCH_OMAPxx checks for
future socs that use the real function. So move this to common.c file and
call it __weak.
Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
ARM: OMAP: sdrc: Fix the build break for OMAP4 only builds
OMAP4 only build breaks with below error
arch/arm/mach-omap2/sdrc.c:135: error: redefinition of 'omap2_sdrc_init'
arch/arm/plat-omap/include/plat/sdrc.h:130: note: previous definition of 'omap2_sdrc_init' was here
make[1]: *** [arch/arm/mach-omap2/sdrc.o] Error 1
Fix the same by using newly introduced CONFIG_SOC_HAS_OMAP2_SDRC marco.
Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
With omap_hwmod_get_main_clk() now available, this can be passed to
clk_get() to extract the fclk and thus avoid construction of fclk name.
Corrected the timer fck name mis-match between clock44xx_data.c and
omap_hwmod_44xx_data.c. For other platforms this is already taken care.
Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Fri, 6 Jul 2012 07:58:43 +0000 (00:58 -0700)]
ARM: OMAP2+: Fix mismerge for omap_hwmod_get_main_clk() API
Commit ac5b0ea3d (Merge tag 'omap-devel-f-for-3.6'...) had a merge
conflict that somehow got incorrecly resolved in a lossy way for
commit bed9d1bb (ARM: OMAP2+: hwmod: add omap_hwmod_get_main_clk() API).
Fix the issue by applying the missing pieces.
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
ARM: OMAP2+: Remove unnecessary ifdef around __omap2_set_globals
The function __omap2_set_globals() can be common across all
platforms/architectures, even in case of omap4, internally it
calls same set of functions as in __omap2_set_globals() function
(except for sdrc).
This patch adds new config flag SOC_HAS_OMAP2_SDRC to handle sdrc,
so that we can reuse same function across omap2/3/4...
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
ARM: OMAP2+: am33xx: Change cpu_is_am33xx to soc_is_am33xx
As per recent discussion on the linux-omap list, we are
moving in the direction where, we will have only architecture,
ARCH_OMAP2PLUS and all devices/platforms will be treated
as a SoC underneath.
So the first step in this direction is to adopt this change
for all new devices getting in, converting
cpu_is_am33xx/335x() ==> soc_is_am33xx/335x()
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
ARM: OMAP2+: am33xx: Make am33xx as a separate class
Initially, we decided to make am33xx family of device to fall
under omap3 class (cpu_is_omap34xx() = true), since it carries
Cortex-A8 core. But while adding complete baseport support
(like, clock, power and hwmod) support, it is observed that,
we are creating more and more problems by treating am33xx device
as omap3 family, as nothing matches between them
(except cortex-A8 mpu).
So, after long discussion we have came to the conclusion that,
we should not consider am33xx device as omap3 family, instead
create separate class (SOC_AM33XX) under OMAP2PLUS.
This means, for am33xx device, cpu_is_omap34xx() will return false,
and only cpu_is_am33xx() will be true.
Please refer to the link below, for mailing-list discussion on this -
In order to remove unnecessary idefs, move noncore and core
dpll ops to dpll3xxx.c file (where it should have been already).
The clkops (clkops_omap3_core_dpll_ops & clkops_omap3_noncore_dpll_ops)
is used in clock data files, and dependency is already handled by
Makefile rule.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
ARM: OMAP2+: All OMAP2PLUS uses omap-device.o target so add one entry
All OMAP2PLUS based devices, builds omap-device.o target;
so just add one entry so that there is no need to patch this file
for any future OMAP2+ devices.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Thu, 5 Jul 2012 09:13:04 +0000 (02:13 -0700)]
Merge tag 'omap-devel-f-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into cleanup-part2
Miscellaneous OMAP clock, hwmod, clockdomain, and powerdomain patches
for 3.6. Mostly small infrastructure improvements, and preparation
for OMAP5 and AM33xx code.
ARM: OMAP2+: hwmod code: add support to set dmadisable in hwmod framework
The DMADISABLE bit is a semi-automatic bit present in sysconfig register
of some modules. When the DMA must perform read/write accesses, the
DMADISABLE bit is cleared by the hardware. But when the DMA must stop for power
management, software must set the DMADISABLE bit back to 1.
In cases where the ROMCODE/BOOTLOADER uses dma, the hardware clears the
DMADISABLE bit (but the romcode/bootloader might not set it back to 1).
In order for the kernel to start in a clean state, it is
necessary for the kernel to set DMADISABLE bit back to 1 (irrespective
of whether it's been set to 1 in romcode or bootloader).
During _reset of the (hwmod)device, the DMADISABLE bit is set so that it
does not prevent idling of the system. (NOTE: having DMADISABLE to 0,
prevents the system to idle)
DMADISABLE bit is present in usbotgss module of omap5.
Cc: Benoit Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[paul@pwsan.com: updated to apply; fixed checkpatch warnings] Signed-off-by: Paul Walmsley <paul@pwsan.com>
R Sricharan [Wed, 4 Jul 2012 11:04:00 +0000 (05:04 -0600)]
ARM: OMAP2+: PRM/CM: Move the stubbed prm and cm functions to prcm.c file and make them __weak
Some prm and cm registers read/write and status functions
are built only for some custom OMAP2+ builds and are stubbed
in header files for other builds under ifdef statements.
But this results in adding new CONFIG_ARCH_OMAPXXX
checks when SOCs are added in the future. So move them
to a common place for OMAP2+ and make them 'weak' implementations.
This way no new ifdefs would be required in the future and also
cleans up the existing code.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
[paul@pwsan.com: unsplit quoted strings; moved PRM functions to
mach-omap2/prm_common.c; resolved sparse warnings] Signed-off-by: Paul Walmsley <paul@pwsan.com>
ARM: OMAP2+: hwmod: add omap_hwmod_get_main_clk() API
Add an API to get main clock name associated with a given @oh.
This will avoid the need to construct fclk names during early
initialization in order to get fclk handle using clk_get().
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Jon Hunter [Fri, 29 Jun 2012 21:04:52 +0000 (16:04 -0500)]
ARM: OMAP2+: powerdomain code: Fix Wake-up power domain power status
The wake-up power domain is an alway-on power domain and so this power domain
does not have a power state status (PM_PWSTST_xxx) register that indicates the
current state. However, during the registering of the wake-up power domain the
state of the domain is queried by calling pwrdm_read_pwrst(). This actually
tries to read a register that does not exist and returns a value of 0 that
indicates that the current state is OFF. The OFF state count of the wake-up
power domain is then set to 1 and the current state to OFF. Both of which are
incorrect.
To fix this, if a power domain only supports the ON state, do not attempt to
read the power state status register and simply return ON as the current power
state.
This is based upon Tony's current linux-omap master branch.
Testing:
- Boot tested on OMAP4460 panda.
- Boot tested on OMAP3430 beagle and validated CORE RET still working (using
Paul's 32k timer patch [1]).
For OMAP3+ devices, the clock domains (CLKDMs) support one or more of the
following transition modes ...
NO_SLEEP (0x0) - A clock domain sleep transition is never initiated,
irrespective of the hardware conditions.
SW_SLEEP (0x1) - A software-forced sleep transition. The transition is initiated
when the associated hardware conditions are satisfied
SW_WKUP (0x2) - A software-forced clock domain wake-up transition is initiated,
irrespective of the hardware conditions.
HW_AUTO (0x3) - Hardware-controlled automatic sleep and wake-up transition is
initiated by the PRCM module when the associated hardware
conditions are satisfied.
For OMAP4 devices, SW_SLEEP is equivalent to HW_AUTO and NO_SLEEP is equivalent
to SW_WKUP. The only difference between HW_AUTO and SW_SLEEP for OMAP4 devices
is that the PRM_IRQSTATUS_MPU.TRANSITION_ST interrupt status is set in case of
SW_SLEEP transition, and not set in case of HW_AUTO transition.
For OMAP4 devices, all CLKDMs support HW_AUTO and therefore we can place the
CLKDMs in the HW_AUTO state instead of the SW_SLEEP mode. Hence, we do not
need to use the SW_SLEEP mode. With regard to NO_SLEEP and SW_WKUP it is
preferred to use SW_WKUP mode if the CLKDM supports it and so use this mode
instead of NO_SLEEP where possible.
For a software perspective the above 4 modes are represented by the following
flags to indicate what modes are supported by each of the CLKDMs.
Linus Torvalds [Sat, 30 Jun 2012 23:01:50 +0000 (16:01 -0700)]
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another week, another batch of fixes.
All are small, contained, targeted fixes for explicit problems --
mostly build and boot failures across i.MX, OMAP, Renesas/Shmobile and
Samsung."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx6q: fix suspend regression caused by common clk migration
ARM: OMAP4470: Fix OMAP4470 boot failure
ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry
ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
ARM: shmobile: r8a7779: Route all interrupts to ARM
ARM: shmobile: kzm9d: use late init machine hook
ARM: shmobile: kzm9g: use late init machine hook
ARM: mach-shmobile: armadillo800eva: Use late init machine hook
ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping
ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel
ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled
ARM: shmobile: sh7372: bugfix: chclr_offset base
ARM: shmobile: sh73a0: bugfix: SY-DMAC number
ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
Randy Dunlap [Sat, 30 Jun 2012 22:37:24 +0000 (15:37 -0700)]
printk.c: fix kernel-doc warnings
Fix kernel-doc warnings in printk.c: use correct parameter name.
Warning(kernel/printk.c:2429): No description found for parameter 'buf'
Warning(kernel/printk.c:2429): Excess function parameter 'line' description in 'kmsg_dump_get_buffer'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Sat, 30 Jun 2012 22:30:46 +0000 (15:30 -0700)]
linux/irq.h: fix kernel-doc warning
Fix kernel-doc warning. This struct member was removed in commit 875682648b89 ("irq: Remove irq_chip->release()") so remove its
associated kernel-doc entry also.
Warning(include/linux/irq.h:338): Excess struct/union/enum/typedef member 'release' description in 'irq_chip'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shawn Guo [Tue, 5 Jun 2012 07:16:43 +0000 (15:16 +0800)]
ARM: imx6q: fix suspend regression caused by common clk migration
When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi
get different on/off states than old clk driver, which breaks suspend
function. There might be a better way to manage these clocks, but let's
takes the old clk driver approach to fix the regression first.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds [Sat, 30 Jun 2012 18:11:58 +0000 (11:11 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull ACPI & Power Management patches from Len Brown.
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
acpi_pad: fix power_saving thread deadlock
ACPI video: Still use ACPI backlight control if _DOS doesn't exist
ACPI, APEI, Avoid too much error reporting in runtime
ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding
ACPI: Remove one board specific WARN when ignoring timer overriding
ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases
ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI
ACPI sysfs.c strlen fix
Linus Torvalds [Sat, 30 Jun 2012 17:11:24 +0000 (10:11 -0700)]
Merge tag 'driver-core-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver Core fixes from Greg Kroah-Hartman:
"Here is a number of printk() fixes, specifically a few reported by the
crazy blog program that ships in SUSE releases (that's "boot log" and
not "web log", it predates the general "blog" terminology by many
years), and the restoration of the continuation line functionality
reported by Stephen and others. Yes, the changes seem a bit big this
late in the cycle, but I've been beating on them for a while now, and
Stephen has even optimized it a bit, so all looks good to me.
The other change in here is a Documentation update for the stable
kernel rules describing how some distro patches should be backported,
to hopefully drive a bit more response from the distros to the stable
kernel releases.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
printk: Optimize if statement logic where newline exists
printk: flush continuation lines immediately to console
syslog: fill buffer with more than a single message for SYSLOG_ACTION_READ
Revert "printk: return -EINVAL if the message len is bigger than the buf size"
printk: fix regression in SYSLOG_ACTION_CLEAR
stable: Allow merging of backports for serious user-visible performance issues
Stuart Hayes [Wed, 13 Jun 2012 21:10:45 +0000 (16:10 -0500)]
acpi_pad: fix power_saving thread deadlock
The acpi_pad driver can get stuck in destroy_power_saving_task()
waiting for kthread_stop() to stop a power_saving thread. The problem
is that the isolated_cpus_lock mutex is owned when
destroy_power_saving_task() calls kthread_stop(), which waits for a
power_saving thread to end, and the power_saving thread tries to
acquire the isolated_cpus_lock when it calls round_robin_cpu(). This
patch fixes the issue by making round_robin_cpu() use its own mutex.
https://bugzilla.kernel.org/show_bug.cgi?id=42981
Cc: stable@vger.kernel.org Signed-off-by: Stuart Hayes <Stuart_Hayes@Dell.com> Signed-off-by: Len Brown <len.brown@intel.com>
Some platforms don't have _DOS control method, but the ACPI
backlight still works.
We should not invoke _DOS for these platforms.
https://bugzilla.kernel.org/show_bug.cgi?id=43168
Cc: Igor Murzov <intergalactic.anonymous@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Sat, 30 Jun 2012 02:05:41 +0000 (19:05 -0700)]
Merge tag 'pm-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael J. Wysocki:
* Fix for a bug in async suspend error code path causing parents to
wait forever for their children in case of a suspend error from
Mandeep Singh Baines (-stable metarial).
* Fix for a suspend regression related to earlier changes in the ACPI
cpuidle driver from Deepthi Dharwar.
* tag 'pm-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / ACPI: Fix suspend/resume regression caused by cpuidle cleanup.
PM / Sleep: Prevent waiting forever on asynchronous suspend after abort
Steven Rostedt [Fri, 29 Jun 2012 15:40:11 +0000 (11:40 -0400)]
printk: Optimize if statement logic where newline exists
In reviewing Kay's fix up patch: "printk: Have printk() never buffer its
data", I found two if statements that could be combined and optimized.
Put together the two 'cont.len && cont.owner == current' if statements
into a single one, and check if we need to call cont_add(). This also
removes the unneeded double cont_flush() calls.
Linus Torvalds [Fri, 29 Jun 2012 20:50:11 +0000 (13:50 -0700)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"Here are a few powerpc fixes. Arguably some of this should have come
to you earlier but I'm only just catching up after my medical leave.
Mostly these fixes regressions, a couple are long standing bugs."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/pseries: Fix software invalidate TCE
powerpc: check_and_cede_processor() never cedes
powerpc/ftrace: Do not trace restore_interrupts()
powerpc: Fix Section mismatch warnings in prom_init.c
ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt
powerpc: Fix uninitialised error in numa.c
powerpc: Fix BPF_JIT code to link with multiple TOCs
Linus Torvalds [Fri, 29 Jun 2012 17:29:21 +0000 (10:29 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull oprofile fixlet from Ingo Molnar.
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array
Kay Sievers [Thu, 28 Jun 2012 07:38:53 +0000 (09:38 +0200)]
printk: flush continuation lines immediately to console
Continuation lines are buffered internally, intended to merge the
chunked printk()s into a single record, and to isolate potentially
racy continuation users from usual terminated line users.
This though, has the effect that partial lines are not printed to
the console in the moment they are emitted. In case the kernel
crashes in the meantime, the potentially interesting printed
information would never reach the consoles.
Here we share the continuation buffer with the console copy logic,
and partial lines are always immediately flushed to the available
consoles. They are still buffered internally to improve the
readability and integrity of the messages and minimize the amount
of needed record headers to store.
Signed-off-by: Kay Sievers <kay@vrfy.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Anton Blanchard [Wed, 27 Jun 2012 13:13:52 +0000 (13:13 +0000)]
powerpc: check_and_cede_processor() never cedes
Commit f948501b36c6 ("Make hard_irq_disable() actually hard-disable
interrupts") caused check_and_cede_processor to stop working.
->irq_happened will never be zero right after a hard_irq_disable
so the compiler removes the call to cede_processor completely.
The bug was introduced back in the lazy interrupt handling rework
of 3.4 but was hidden until recently because hard_irq_disable did
nothing.
This issue will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.
Signed-off-by: Anton Blanchard <anton@samba.org> Cc: stable@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Steven Rostedt [Mon, 4 Jun 2012 16:27:54 +0000 (16:27 +0000)]
powerpc/ftrace: Do not trace restore_interrupts()
As I was adding code that affects all archs, I started testing function
tracer against PPC64 and found that it currently locks up with 3.4
kernel. I figured it was due to tracing a function that shouldn't be, so
I went through the following process to bisect to find the culprit:
cat /debug/tracing/available_filter_functions > t
num=`wc -l t`
sed -ne "1,${num}p" t > t1
let num=num+1
sed -ne "${num},$p" t > t2
cat t1 > /debug/tracing/set_ftrace_filter
echo function /debug/tracing/current_tracer
<failed? bisect t1, if not bisect t2>
It finally came down to this function: restore_interrupts()
I'm not sure why this locks up the system. It just seems to prevent
scheduling from occurring. Interrupts seem to still work, as I can ping
the box. But all user processes freeze.
When restore_interrupts() is not traced, function tracing works fine.
Cc: stable@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Li Zhong [Thu, 7 Jun 2012 17:44:23 +0000 (17:44 +0000)]
powerpc: Fix Section mismatch warnings in prom_init.c
This patches tries to fix a couple of Section mismatch warnings like
following one:
WARNING: arch/powerpc/kernel/built-in.o(.text+0x2923c): Section mismatch
in reference from the function .prom_query_opal() to the
function .init.text:.call_prom()
The function .prom_query_opal() references
the function __init .call_prom().
This is often because .prom_query_opal lacks a __init
annotation or the annotation of .call_prom is wrong.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tiejun Chen [Wed, 6 Jun 2012 20:56:43 +0000 (20:56 +0000)]
ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt
In entry_64.S version of ret_from_except_lite, you'll notice that
in the !preempt case, after we've checked MSR_PR we test for any
TIF flag in _TIF_USER_WORK_MASK to decide whether to go to do_work
or not. However, in the preempt case, we do a convoluted trick to
test SIGPENDING only if PR was set and always test NEED_RESCHED ...
but we forget to test any other bit of _TIF_USER_WORK_MASK !!! So
that means that with preempt, we completely fail to test for things
like single step, syscall tracing, etc...
This should be fixed as the following path:
- Test PR. If not set, go to resume_kernel, else continue.
- If go resume_kernel, to do that original do_work.
- If else, then always test for _TIF_USER_WORK_MASK to decide to do
that original user_work, else restore directly.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Tue, 19 Jun 2012 20:01:45 +0000 (20:01 +0000)]
powerpc: Fix uninitialised error in numa.c
chroma_defconfig currently gives me this with gcc 4.6:
arch/powerpc/mm/numa.c:638:13: error: 'dm' may be used uninitialized in this function [-Werror=uninitialized]
It's a bogus warning/error since of_get_drconf_memory() only writes it
anyway.
Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: <stable@kernel.org> [v3.3+] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Thu, 21 Jun 2012 17:50:27 +0000 (17:50 +0000)]
powerpc: Fix BPF_JIT code to link with multiple TOCs
If the kernel is big enough (eg. allyesconfig), the linker may need to
switch TOCs when calling from the BPF JIT code out to the external
helpers (skb_copy_bits() & bpf_internal_load_pointer_neg_helper()).
In order to do that we need to leave space after the bl for the linker
to insert a reload of our TOC pointer.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds [Thu, 28 Jun 2012 19:38:51 +0000 (12:38 -0700)]
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon changes from Guenter Roeck:
"Just e-mail address updates"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: Update my e-mail address
hwmon: (applesmc) correct email address for Jesper Juhl
Linus Torvalds [Thu, 28 Jun 2012 18:51:19 +0000 (11:51 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"This fixes:
- the WDIOC_GETSTATUS return value
- the unregister of all NMI events on exit
- the loading of the iTCO_wdt driver after the conversion to the
lpc_ich mfd model."
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: core: fix WDIOC_GETSTATUS return value
watchdog: hpwdt: Unregister NMI events on exit.
watchdog: iTCO_wdt: add platform driver module alias
Linus Torvalds [Thu, 28 Jun 2012 18:43:45 +0000 (11:43 -0700)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes from Jan Kara:
"Make UDF more robust in presence of corrupted filesystem"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fortify loading of sparing table
udf: Avoid run away loop when partition table length is corrupted
udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol()
Linus Torvalds [Thu, 28 Jun 2012 18:41:43 +0000 (11:41 -0700)]
Merge tag 'upstream-3.5-rc5' of git://git.infradead.org/linux-ubifs
Pull ubi/ubifs fixes from Artem Bityutskiy:
"Fix the debugfs regression - we never enable it because incorrect
'IS_ENABLED()' macro usage: should be 'IS_ENABLED(CONFIG_DEBUG_FS)',
but we had 'IS_ENABLED(DEBUG_FS)'. Also fix incorrect assertion."
* tag 'upstream-3.5-rc5' of git://git.infradead.org/linux-ubifs:
UBI: correct usage of IS_ENABLED()
UBIFS: correct usage of IS_ENABLED()
UBIFS: fix assertion
Wim Van Sebroeck [Tue, 26 Jun 2012 18:07:21 +0000 (20:07 +0200)]
watchdog: core: fix WDIOC_GETSTATUS return value
In commit 7a87982420e5e126bfefeb42232d1fd92052794e we added
a wrapper for the WDIOC_GETSTATUS ioctl call. The code results
however in a different behaviour: it returns an error if the
driver doesn't support the status operation. This is not
according to the API that says that when we don't support
the status operation, that we just should return a 0 value.
Only when the device isn't there anymore, we should return an
error.
Jan Beulich [Fri, 22 Jun 2012 15:41:00 +0000 (16:41 +0100)]
watchdog: iTCO_wdt: add platform driver module alias
The recent conversion of iTCO_wdt resulted in the driver no longer
getting loaded automatically, since it no longer has a
MODULE_DEVICE_TABLE() included. As the lpc_ich driver now creates a
platform device, auto-loading can easily be done by having a respective
module alias in place.
Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Aaron Sierra <asierra@xes-inc.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Torvalds [Thu, 28 Jun 2012 18:26:42 +0000 (11:26 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Nearly all intel, one missing license header in nouveau, nothing
majorly earth shattering."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/i915: allow PCH PWM override on IVB"
drm/nouveau: add license header to prime.
drm/i915: Fix eDP blank screen after S3 resume on HP desktops
drm/i915: rip out the PM_IIR WARN
1) Pairing and deadlock fixes in bluetooth from Johan Hedberg.
2) Add device IDs for AR3011 and AR3012 bluetooth chips. From
Giancarlo Formicuccia and Marek Vasut.
3) Fix wireless regulatory deadlock, from Eliad Peller.
4) Fix full TX ring panic in bnx2x driver, from Eric Dumazet.
5) Revert the two commits that added skb_orphan_try(), it causes
erratic bonding behavior with UDP clients and the gains it used to
give are mostly no longer happening due to how BQL works. From Eric
Dumazet.
6) It took two tries, but Thomas Graf fixed a problem wherein we
registered ipv6 routing procfs files before their backend data were
initialized properly.
7) Fix max GSO size setting in be2net, from Sarveshwar Bandi.
8) PHY device id mask is wrong for KSZ9021 and KS8001 chips, fix from
Jason Wang.
9) Fix use of stale SKB data pointer after skb_linearize() call in
batman-adv, from Antonio Quartulli.
10) Fix memory leak in IXGBE due to missing __GFP_COMP, from Alexander
Duyck.
11) Fix probing of Gobi devices in qmi_wwan usbnet driver, from Bjørn
Mork.
12) Fix suspend/resume and open failure handling in usbnet from Ming
Lei.
13) Attempt to fix device r8169 hangs for certain chips, from Francois
Romieu.
14) Fix advancement of RX dirty pointer in some situations in sh_eth
driver, from Yoshihiro Shimoda.
15) Attempt to fix restart of IPV6 routing table dumps when there is an
intervening table update. From Eric Dumazet.
16) Respect security_inet_conn_request() return value in ipv6 TCP. From
Neal Cardwell.
17) Add another iPAD device ID to ipheth driver, from Davide Gerhard.
18) Fix access to freed SKB in l2tp_eth_dev_xmit(), and fix l2tp lockdep
splats, from Eric Dumazet.
19) Make sure all bridge devices, regardless of whether they were
created via netlink or ioctls, have their rtnetlink ops hooked up.
From Thomas Graf and Stephen Hemminger.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
9p: fix min_t() casting in p9pdu_vwritef()
can: flexcan: use be32_to_cpup to handle the value of dt entry
xen/netfront: teardown the device before unregistering it.
bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2)
vhost: use USER_DS in vhost_worker thread
ixgbe: Do not pad FCoE frames as this can cause issues with FCoE DDP
net: l2tp_eth: use LLTX to avoid LOCKDEP splats
mac802154: add missed braces
net: l2tp_eth: fix l2tp_eth_dev_xmit race
net/mlx4_en: Release QP range in free_resources
net/mlx4: Use single completion vector after NOP failure
net/mlx4_en: Set correct port parameters during device initialization
ipheth: add support for iPad
caif-hsi: Add missing return in error path
caif-hsi: Bugfix - Piggyback'ed embedded CAIF frame lost
caif: Clear shutdown mask to zero at reconnect.
tcp: heed result of security_inet_conn_request() in tcp_v6_conn_request()
ipv6: fib: fix fib dump restart
batman-adv: fix race condition in TT full-table replacement
batman-adv: only drop packets of known wifi clients
...
David S. Miller [Wed, 27 Jun 2012 22:27:24 +0000 (15:27 -0700)]
Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:
====================
here's a patch intended for v3.5, targeting net/master. Hui Wang has
found and fixed an endianness problem in the device tree handling in
the flexcan driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Tue, 26 Jun 2012 23:01:41 +0000 (23:01 +0000)]
9p: fix min_t() casting in p9pdu_vwritef()
I don't think we're actually likely to hit this limit but if we do
then the comparison should be done as size_t. The original code
is equivalent to:
len = strlen(sptr) % USHRT_MAX;
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 27 Jun 2012 19:54:05 +0000 (12:54 -0700)]
Merge tag 'usb-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are some small USB gadget bugfixes, and a few new USB device ids
added to some drivers for the 3.5-rc5 release.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: CP210x Add 10 Device IDs
USB: option: Add USB ID for Novatel Ovation MC551
usb: phy: Fix Kconfig dependency for Phy drivers
usb-storage: revert commit afff07e61a52 (Add 090c:1000 to unusal-devs)
SCSI & usb-storage: add try_rc_10_first flag
usb: musb: host: release dma channels if no active io
usb: gadget: lpc32xx_udc: fix build error with debugfs enabled
usb: otg: twl6030-usb: Fix twl writes
USB: option: add id for Cellient MEN-200
usb: dwc3: fix giveback of queued request in ep_dequeue
usb: gadget: Complete fsl qe/udc driver conversion
Linus Torvalds [Wed, 27 Jun 2012 19:50:28 +0000 (12:50 -0700)]
Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here you find quite a few changes for HD-audio and a copule of quirk
additions for USB-audio. All reasonably small and/or trivial."
* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix power-map regression for HP dv6 & co
ALSA: hda - Initialize caches at codec reconfiguration
ALSA: hda - Fix memory leaks at module unload
ALSA: hda - Fix memory leaks in Realtek & Conexant codec parsers
ALSA: hda - Add Realtek ALC280 codec support
ALSA: hda - Remove obsoleted CONFIG_SND_HDA_ENABLE_REALTEK_QUIRKS
ASoC: wm8994: remove duplicate code
ALSA: usb-audio: add BOSS GT-100 support
ALSA: HDA: Add inverted internal mic quirk for Lenovo S205
ALSA: hda - Fix ALC272X codec detection
ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks
ALSA: snd_usb_audio: ignore ctrl errors on QuickCam E3500
Linus Torvalds [Wed, 27 Jun 2012 19:48:07 +0000 (12:48 -0700)]
Merge tag 'mmc-fixes-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- omap_hsmmc: Using AUTO_CMD12 (enabled by default in 3.5-rc1) has
been found to cause data corruption on the BeagleBoard, but no
other OMAP boards so far. Revert the patch until there's a root
cause explanation that makes sense, at which point we might
decide to use a blacklist or whitelist.
- mmc_block: Fix incorrect data timeouts for the case of multiblock
(ACMD22) writes for block-addressed cards.
* tag 'mmc-fixes-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
Revert "mmc: omap_hsmmc: Enable Auto CMD12"
mmc: block: fix the data timeout issue with ACMD22
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