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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking changes from Ingo Molnar:
"Four miscellanous standalone fixes for futexes, rtmutexes and
Kconfig.locks."
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Use freezable blocking call
futex: Take hugepages into account when generating futex_key
rtmutex: Document rt_mutex_adjust_prio_chain()
locking: Fix copy/paste errors of "ARCH_INLINE_*_UNLOCK_BH"
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The futex_keys of process shared futexes are generated from the page
offset, the mapping host and the mapping index of the futex user space
address. This should result in an unique identifier for each futex.
Though this is not true when futexes are located in different subpages
of an hugepage. The reason is, that the mapping index for all those
futexes evaluates to the index of the base page of the hugetlbfs
mapping. So a futex at offset 0 of the hugepage mapping and another
one at offset PAGE_SIZE of the same hugepage mapping have identical
futex_keys. This happens because the futex code blindly uses
page->index.
Steps to reproduce the bug:
1. Map a file from hugetlbfs. Initialize pthread_mutex1 at offset 0
and pthread_mutex2 at offset PAGE_SIZE of the hugetlbfs
mapping.
The mutexes must be initialized as PTHREAD_PROCESS_SHARED because
PTHREAD_PROCESS_PRIVATE mutexes are not affected by this issue as
their keys solely depend on the user space address.
2. Lock mutex1 and mutex2
3. Create thread1 and in the thread function lock mutex1, which
results in thread1 blocking on the locked mutex1.
4. Create thread2 and in the thread function lock mutex2, which
results in thread2 blocking on the locked mutex2.
5. Unlock mutex2. Despite the fact that mutex2 got unlocked, thread2
still blocks on mutex2 because the futex_key points to mutex1.
To solve this issue we need to take the normal page index of the page
which contains the futex into account, if the futex is in an hugetlbfs
mapping. In other words, we calculate the normal page mapping index of
the subpage in the hugetlbfs mapping.
Mappings which are not based on hugetlbfs are not affected and still
use page->index.
Thanks to Mel Gorman who provided a patch for adding proper evaluation
functions to the hugetlbfs code to avoid exposing hugetlbfs specific
details to the futex code.
[ tglx: Massaged changelog ]
Signed-off-by: Zhang Yi <zhang.yi20@zte.com.cn>
Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn>
Tested-by: Ma Chenggong <ma.chenggong@zte.com.cn>
Reviewed-by: 'Mel Gorman' <mgorman@suse.de>
Acked-by: 'Darren Hart' <dvhart@linux.intel.com>
Cc: 'Peter Zijlstra' <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/000101ce71a6%24a83c5880%24f8b50980%24@com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late changes from Arnd Bergmann:
"These are changes that arrived a little late before the merge window
or that have multiple dependencies on previous branches so they did
not fit into one of the earlier ones. There are 10 branches merged
here, a total of 39 non-merge commits. Contents are a mixed bag for
the above reasons:
* Two new SoC platforms: ST microelectronics stixxxx and the TI
'Nspire' graphing calculator. These should have been in the 'soc'
branch but were a little late
* Support for the Exynos 5420 variant in mach-exynos, which is based
on the other exynos branches to avoid conflicts.
* Various small changes for sh-mobile, ux500 and davinci
* Common clk support for MSM"
* tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
ARM: ux500: bail out on alien cpus
ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins
serial: sh-sci: Initialise variables before access in sci_set_termios()
ARM: stih41x: Add B2020 board support
ARM: stih41x: Add B2000 board support
ARM: sti: Add DEBUG_LL console support
ARM: sti: Add STiH416 SOC support
ARM: sti: Add STiH415 SOC support
ARM: msm: Migrate to common clock framework
ARM: msm: Make proc_comm clock control into a platform driver
ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
ARM: msm: Remove clock-7x30.h include file
ARM: msm: Remove custom clk_set_{max,min}_rate() API
ARM: msm: Remove custom clk_set_flags() API
msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
msm: iommu: Convert to clk_prepare/unprepare
msm_sdcc: Convert to clk_prepare/unprepare
usb: otg: msm: Convert to clk_prepare/unprepare
msm_serial: Use devm_clk_get() and properly return errors
msm_serial: Convert to clk_prepare/unprepare
...
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/late
Renesas sh-sci updates for v3.11
HSCIF support by Ulrich Hecht.
* tag 'renesas-sh-sci-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
serial: sh-sci: Initialise variables before access in sci_set_termios()
ARM: shmobile: r8a7790: don't use external clock for SCIFs
ARM: shmobile: r8a7790: HSCIF support
serial: sh-sci: HSCIF support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Adds support for "High Speed Serial Communications Interface with FIFO",
essentially a SCIF with 128-byte FIFOs and more accurate baud rate
generator.
Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/late
From Kukjin Kim:
based on tags/common-clk-audio
- add support for exynos5420 SoC
* tag 'soc-exynos5420-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: extend soft-reset support for EXYNOS5420
ARM: EXYNOS: add secondary CPU boot base location for EXYNOS5420
clocksource: exynos_mct: use (request/free)_irq calls for local timer registration
ARM: dts: Add initial device tree support for EXYNOS5420
clk: exynos5420: register clocks using common clock framework
ARM: EXYNOS: use four additional chipid bits to identify EXYNOS family
serial: samsung: select EXYNOS specific driver data if ARCH_EXYNOS is defined
ARM: EXYNOS: Add support for EXYNOS5420 SoC
ARM: dts: list the CPU nodes for EXYNOS5250
ARM: dts: fork out common EXYNOS5 nodes
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/late
From Simon Horman:
Renesas ARM based SoC cleanups for v3.11
__initdata annotations for the r8a7790 SoC by Morimoto-san.
* tag 'renesas-cleanup-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (158 commits)
ARM: shmobile: r8a7790: add __initdata on resource and device data
Based on 'renesas-pinmux-for-v3.11' and 'renesas-soc-for-v3.11
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver specific changes from Arnd Bergmann:
"These changes are all driver specific and cross over between arm-soc
contents and some other subsystem, in these cases cpufreq, crypto,
dma, pinctrl, mailbox and usb, and the subsystem owners agreed to have
these changes merged through arm-soc.
As we proceed to untangle the dependencies between platform code and
driver code, the amount of changes in this category is fortunately
shrinking, for 3.11 we have 16 branches here and 101 non-merge
changesets, the majority of which are for the stedma40 dma engine
driver used in the ux500 platform. Cleaning up that code touches
multiple subsystems, but gets rid of the dependency in the end.
The mailbox code moved out from mach-omap2 to drivers/mailbox is an
intermediate step and is still omap specific at the moment. Patches
exist to generalize the subsystem and add other drivers with the same
API, but those did not make it for 3.11."
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits)
crypto: ux500: use dmaengine_submit API
crypto: ux500: use dmaengine_prep_slave_sg API
crypto: ux500: use dmaengine_device_control API
crypto: ux500/crypt: add missing __iomem qualifiers
crypto: ux500/hash: add missing static qualifiers
crypto: ux500/hash: use readl on iomem addresses
dmaengine: ste_dma40: Declare memcpy config as static
ARM: ux500: Remove mop500_snowball_ethernet_clock_enable()
ARM: ux500: Correct the EN_3v3 regulator's on/off GPIO
ARM: ux500: Provide a AB8500 GPIO Device Tree node
gpio: rcar: fix gpio_rcar_of_table
gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
gpio-rcar: Reference core gpio documentation in the DT bindings
clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2
ARM: dts: Update Samsung I2S documentation
ARM: dts: add clock provider information for i2s controllers in Exynos5250
ARM: dts: add Exynos audio subsystem clock controller node
clk: samsung: register audio subsystem clocks using common clock framework
ARM: dts: use #include for all device trees for Samsung
pinctrl: s3c24xx: use correct header for chained_irq functions
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
From Kukjin Kim:
based on exynos-dt-2 and s3c24xx-dt-2
- use #include for all Samsung DT
- add clk for exynos audio subsystem (audss) and i2s
- support audss and i2s for exynos5250
* tag 'common-clk-audio' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2
ARM: dts: Update Samsung I2S documentation
ARM: dts: add clock provider information for i2s controllers in Exynos5250
ARM: dts: add Exynos audio subsystem clock controller node
clk: samsung: register audio subsystem clocks using common clock framework
ARM: dts: use #include for all device trees for Samsung
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Audio subsystem is introduced in s5pv210 and exynos platforms.
This has seperate clock controller which can control i2s0 and
pcm0 clocks. This patch registers the audio subsystem clocks
with the common clock framework on Exynos family.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers
From Tony Lindgren:
Move OMAP Mailbox framework to drivers via Suman Anna <s-anna@ti.com>
The OMAP Mailbox driver framework is moved out of arch/arm folder
into drivers/mailbox folder, to re-enable building it and also serve
as a baseline for adapting to the new mailbox driver framework. The
changes mainly contain:
- a minor bug fix and cleanup of mach-specific mailbox code
- remove any header dependencies from plat-omap for multi-platform
support
- represent mailbox device data through platform data/hwmod attrs
- move the omap mailbox code out of plat-omap/mach-omapX to
drivers/mailbox folder
* tag 'omap-for-v3.11/mailbox-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
mailbox/omap: move the OMAP mailbox framework to drivers
ARM: OMAP2+: add user and fifo info to mailbox platform data
ARM: OMAP2+: mbox: remove dependencies with soc.h
omap: mailbox: correct the argument type for irq ops
omap: mailbox: call request_irq after mbox queues are allocated
omap: mailbox: check iomem resource before dereferencing it
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The mailbox hardware (in OMAP) uses a queued mailbox interrupt
mechanism that provides a communication channel between processors
through a set of registers and their associated interrupt signals
by sending and receiving messages.
The OMAP mailbox framework/driver code is moved to be under
drivers/mailbox, in preparation for adapting to a common mailbox
driver framework. This allows the build for OMAP mailbox to be
enabled (it was disabled during the multi-platform support).
As part of the migration from plat and mach code:
- Kconfig symbols have been renamed to build OMAP1 or OMAP2+ drivers.
- mailbox.h under plat-omap/plat/include has been split into a public
and private header files. The public header has only the API related
functions and types.
- The module name mailbox.ko from plat-omap is changed to
omap-mailbox.ko
- The module name mailbox_mach.ko from mach-omapX is changed as
mailbox_omap1.ko for OMAP1
mailbox_omap2.ko for OMAP2+
Cc: Tony Lindgren <tony@atomide.com>
[gregkh@linuxfoundation.org: ack for staging part]
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
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The different generations of OMAP2+ SoCs have almost the same
mailbox IP, but the IP has configurable parameters for number
of users (interrupts it can generate out towards processors)
and number of fifos (the base unidirectional h/w communication
channel). This data cannot be read from any registers, and so
has been added to the platform data.
This data together with the interrupt-type configuration can be
used in properly figuring out the number of registers to save
and restore in the OMAP mailbox driver code.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
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The OMAP mailbox platform driver code has been cleaned up to
remove the dependencies with soc.h in preparation for moving
the mailbox code to drivers folder.
The code relied on cpu_is_xxx/soc_is_xxx macros previously to
pick the the right set of mailbox devices and register with the
mailbox driver. This data is now represented in a concise format
and moved to the respective omap_hwmod data files and published
to the driver through the platform data.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
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next/drivers
From Nicolas Ferre:
Adding the DT support to USB gadget High-Speed aka usba.
* tag 'at91-drivers' of git://github.com/at91linux/linux-at91:
USB: gadget: atmel_usba: add DT support
USB: gadget: atmel_usba: allow multi instance
USB: gadget: atmel_usba: move global struct usba_ep usba_ep to struct usba_udc
ARM: at91: udpate defconfigs
ARM: at91: dt: switch to standard IRQ flag defines
ARM: at91: dt: switch to pinctrl to pre-processor
ARM: at91: dt: add pinctrl pre-processor define
ARM: at91: dt: switch to standard GPIO flag defines.
ARM: at91: dt: use #include for all device trees
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/boot/dts/at91sam9260.dtsi
arch/arm/boot/dts/sama5d3.dtsi
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers
From Simon Horman:
Renesas ARM based SoC GPIO R-Car updates for v3.11
DT support to GPIO R-Car driver by Laurent Pinchart.
* tag 'renesas-gpio-rcar-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (131 commits)
gpio-rcar: Add DT support
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/drivers
From Linus Walleij:
Second set of DMA40 changes: refactorings and device tree
support for the DMA40. Now with MUSB and some platform
data removal.
* tag 'ux500-dma40-for-arm-soc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
dmaengine: ste_dma40: Fetch disabled channels from DT
dmaengine: ste_dma40: Fetch the number of physical channels from DT
ARM: ux500: Stop passing DMA platform data though AUXDATA
dmaengine: ste_dma40: Allow memcpy channels to be configured from DT
dmaengine: ste_dma40_ll: Replace meaningless register set with comment
dmaengine: ste_dma40: Convert data_width from register bit format to value
dmaengine: ste_dma40_ll: Use the BIT macro to replace ugly '(1 << x)'s
ARM: ux500: Remove recently unused stedma40_xfer_dir enums
dmaengine: ste_dma40: Replace ST-E's home-brew DMA direction defs with generic ones
ARM: ux500: Replace ST-E's home-brew DMA direction definition with the generic one
dmaengine: ste_dma40: Use the BIT macro to replace ugly '(1 << x)'s
ARM: ux500: Remove empty function u8500_of_init_devices()
ARM: ux500: Remove ux500-musb platform registation when booting with DT
usb: musb: ux500: add device tree probing support
usb: musb: ux500: attempt to find channels by name before using pdata
usb: musb: ux500: harden checks for platform data
usb: musb: ux500: take the dma_mask from coherent_dma_mask
usb: musb: ux500: move the MUSB HDRC configuration into the driver
usb: musb: ux500: move channel number knowledge into the driver
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At this moment in time the memcpy channels which can be used by the D40
are fixed, as each supported platform in Mainline uses the same ones.
However, platforms do exist which don't follow this convention, so
these will need to be tailored. Fortunately, these platforms will be DT
only, so this change has very little impact on platform data.
Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When a DMA client requests and configures a DMA channel, it requests
data_width in Bytes. The DMA40 driver then swiftly converts it over to
the necessary register bit value. Unfortunately, for any subsequent
calculations we have to shift '1' by the bit pattern (1 << data_width)
times to make any sense of it.
This patch flips the semantics on its head and only converts the value
to its respective register bit pattern when writing to registers. This
way we can use the true data_width (in Bytes) value.
Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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We're now using the transfer direction definitions provided by the DMA
sub-system, so the home-brew ones have become obsolete.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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For all ux500 based platforms the maximum number of end-points are used.
Move this knowledge into the driver so we can relinquish the burden from
platform data. This also removes quite a bit of complexity from the driver
and will aid us when we come to enable the driver for Device Tree.
Cc: linux-usb@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
From Kukjin Kim, driver updats for s3c24xx:
- move cpufreq driver into drivers/
- add pinctrl-s3c24xx driver
- cleanup OF in gpio driver
Signed-off-by: Olof Johansson <olof@lixom.net>
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next/drivers
From Heiko Stuebner, enhancements for dw_apb_timer:
- use DECLARE_CLOCKSOURCE_OF and convert its users
- handle the sptimer not being present as sched_clock
- add optional handling of timer clocks
* tag 'dw_apb_timer_of' of git://github.com/mmind/linux-rockchip:
clocksource: dw_apb_timer_of: use clocksource_of_init
clocksource: dw_apb_timer_of: select DW_APB_TIMER
clocksource: dw_apb_timer_of: add clock-handling
clocksource: dw_apb_timer_of: enable the use the clocksource as sched clock
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/drivers
From Linus Walleij:
This is a set of patches from Lee Jones to start converting
the ux500 to fetch DMA channels from the device tree:
- Full DT support and channel mapping in the DMA40 driver
- Dropping of platform data for migrated devices on the DT
boot path.
* tag 'ux500-dma40-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (36 commits)
ARM: ux500: Register Cryp and Hash platform drivers on Snowball
crypto: ux500/[cryp|hash] - Show successful start-up in the bootlog
ARM: ux500: Stop passing Cryp DMA channel config information though pdata
crypto: ux500/cryp - Set DMA configuration though dma_slave_config()
crypto: ux500/cryp - Prepare clock before enabling it
ARM: ux500: Stop passing Hash DMA channel config information though pdata
crypto: ux500/hash - Set DMA configuration though dma_slave_config()
crypto: ux500/hash - Prepare clock before enabling it
ARM: ux500: Remove unnecessary attributes from DMA channel request pdata
dmaengine: ste_dma40: Correct copy/paste error
ARM: ux500: Remove DMA address look-up table
dmaengine: ste_dma40: Remove redundant address fetching function
dmaengine: ste_dma40: Only use addresses passed as configuration information
ARM: ux500: Stop passing UART's platform data for Device Tree boots
dmaengine: ste_dma40: Don't configure runtime configurable setup during allocate
dmaengine: ste_dma40: Remove unnecessary call to d40_phy_cfg()
dmaengine: ste_dma40: Separate Logical Global Interrupt Mask (GIM) unmasking
ARM: ux500: Pass remnant platform data though to DMA40 driver
dmaengine: ste_dma40: Supply full Device Tree parsing support
dmaengine: ste_dma40: Allow driver to be probe()able when DT is enabled
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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'struct stedma40_half_channel_info's header comment says that it's
called 'struct stedma40_chan_cfg'. Let's straighten that out.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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DMA addresses are now passed as part of the dmaengine API by invoking
dmaengine_slave_config(). So there's no requirement for the DMA40
driver to look them up in a table provided by platform data. This
method does not fit in well using Device Tree either.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This change will cost ~25KB of memory, but it's worth the trade-off,
as it removes a great deal of overhead. It means that instead of only
allocating memory for the logical channels in use, it does so for all
available ones, which is 32 per physical channel. However, this now
means we can remove some platform data and we don't have to worry
about adding vendor specific variables to Device Tree.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Devices which utilise DMA use the same device numbers for transmitting
and receiving. In this patch we encode the source and destination
information into one single attribute. We can subsequently exploit the
direction attribute to see which of the transfer directions are being
described. This also lessens the burden on platform data.
Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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There are only two default memcpy configurations used for the DMA40
driver; one for physical memcpy and one for logical memcpy. Instead
of invariably passing the same configurations though platform data,
we're moving them into the driver instead.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The channels reserved for memcpy are the same for all currently
supported platforms. With this in mind, we can ease the platform
data passing requirement by moving these assignments out from
platform code and place them directly into the driver.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree changes from Arnd Bergmann:
"These changes from 30 individual branches for the most part update
device tree files, but there are also a few source code changes that
have crept in this time, usually in order to atomically move over a
driver from using hardcoded data to DT probing.
A number of platforms change their DT files to use the C preprocessor,
which is causing a bit of churn, but that is hopefully only this once"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
ARM: at91: dt: rm9200ek: add spi support
ARM: at91: dt: rm9200: add spi support
ARM: at91/DT: at91sam9n12: add SPI DMA client infos
ARM: at91/DT: sama5d3: add SPI DMA client infos
ARM: at91/DT: fix SPI compatibility string
ARM: Kirkwood: Fix the internal register ranges translation
ARM: dts: bcm281xx: change comment to C89 style
ARM: mmc: bcm281xx SDHCI driver (dt mods)
ARM: nomadik: add the new clocks to the device tree
clk: nomadik: implement the Nomadik clocks properly
ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
ARM: dts: omap4-panda: Fix DVI EDID reads
ARM: dts: omap4-panda: Add USB Host support
arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
ARM: shmobile: irqpin: add a DT property to enable masking on parent
ARM: dts: AM43x EPOS EVM support
ARM: dts: OMAP5: Add bandgap DT entry
ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt into next/dt
From Benoit Cousson:
omap devicetree changes for v3.11 merge window
- Add mandatory DT support for missing IPs, like USB host,
bandgap, LED, NAND, LAN, CPSW, PWM for OMAP and AMXX devices.
- Introduce new AM43x silicon.
* 'for_3.11/dts' of git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt: (52 commits)
ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
ARM: dts: omap4-panda: Fix DVI EDID reads
ARM: dts: omap4-panda: Add USB Host support
ARM: dts: AM43x EPOS EVM support
ARM: dts: OMAP5: Add bandgap DT entry
ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
ARM: dts: omap3-overo: Add default trigger for TWL4030 LED
ARM: dts: omap3-tobi: Correct polarity for GPIO LED
ARM: dts: omap3-tobi: Add SMSC911X node
ARM: dts: OMAP3: Include IRQ header
ARM: dts: Protect pinctrl headers against multiple inclusions
ARM: AM33XX: clock data: Enable clkout2 as part of init
ARM: AM33XX: clock: Add debugSS clock nodes
ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes
ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evmsk
ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm
ARM: dts: AM33XX: Add PWMSS device tree nodes
ARM: dts: OMAP4460: Add bandgap entry for OMAP4460 devices
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
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Pinctrl headers were not protected with #ifndef.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
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The pinctrl IP inside the AM33XX family differs slightly from
what is found on OMAP2+. Define a specific header to take account
of the differences.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Tested-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
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Most of the constants are taken from arch/arm/mach-omap2/mux.h.
Define some others for the PIN_OUTPUT_* flavours.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
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into next/dt
This is a dependency for imx/dt
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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into next/dt
From Shawn Guo:
mxs device tree changes for 3.11:
* A couple of new board support, cfa10055 and cfa10057
* A few updates on cfa10036 device tree source
* Some auart pinctrl data addition
* Adopt soc bus infrastructure for mach-mxs
* tag 'mxs-dt-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mxs: dt: Add Crystalfontz CFA-10057 device tree
ARM: mxs: dt: Add the Crystalfontz CFA-10055 device tree
ARM: cfa10049: Switch the chip select pin of the LCD controller
ARM: cfa10036: Add USB0 OTG port
ARM: dts: apf28dev: Add touchscreen support for APF28dev
ARM: mxs: Fix UARTs on M28EVK
ARM: cfa10036: dt: Change i2c0 clock frequency
ARM: dts: cfa10036: Change the OLED display to SSD1306
ARM: mx28: add auart4 2 pins pinmux to imx28.dtsi
ARM: mx28: add auart3 2 pins pinmux to imx28.dtsi
ARM: mx28: add auart2 2 pins pinmux to imx28.dtsi
ARM: mxs: Use soc bus infrastructure
ARM: dts: mx28: Adjust the digctl compatible string
ARM: mxs: Remove init_irq declaration in machine description
Includes an update to 3.10-rc6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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From Michal Simek:
arm: Xilinx Zynq dt changes for v3.11
The branch contains:
- DT uart handling cleanup
- Support for zc706 and zed board
- Removal of board compatible string
* tag 'zynq-dt-for-3.11' of git://git.xilinx.com/linux-xlnx:
arm: dt: zynq: Add support for the zed platform
arm: dt: zynq: Add support for the zc706 platform
arm: dt: zynq: Use 'status' property for UART nodes
arm: zynq: Remove board specific compatibility string
clk: zynq: Remove deprecated clock code
arm: zynq: Migrate platform to clock controller
clk: zynq: Add clock controller driver
clk: zynq: Factor out PLL driver
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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From Nicolas Ferre:
Again some nice DT updates for AT91:
- DMA binding update with one patch shared with slave-dma tree
- more SPI DT activation
- enable the USB gadget HS for DT platforms
* tag 'at91-dt' of git://github.com/at91linux/linux-at91:
ARM: at91: sam9m10g45ek add udc DT support
ARM: at91: sam9g45 add udc DT support
ARM: at91: sam9x5ek add udc DT support
ARM: at91: sam9x5 add udc DT support
ARM: at91: dt: at91sam9x5: add SPI DMA client infos
ARM: at91: dt: switch DMA DT bindings to pre-processor
ARM: at91: dt: add header to define at_hdmac configuration
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DMA-cell content is a concatenation of several values. In order to keep this
stuff human readable, macros are introduced.
The values for the FIFO configuration are not the same as the ones used in the
configuration register in order to keep backward compatibility. Most devices
use the half FIFO configuration but USART ones have to use the ASAP
configuration. This parameter was not initially planed to be into the at91 dma
dt binding. The third cell will be used to store this parameter, it will
become a concatenation of the FIFO configuration and of the peripheral ID. In
order to keep backward compatibility i.e. FIFO configuration is equal to 0, we
have to perform a translation since the value to put in the register to set
half FIFO is 1.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/dt
From Stephen Warren:
ARM: tegra: device tree updates
This branch contains all device tree updates for Tegra boards.
The changes are:
* Converted all DT files to use the C pre-processor, to support the use
of named constants. This included use of defines for GPIO, IRQ, and
clock constants.
* Enabling new features such as:
- SPI on Dalmore.
- Audio on Dalmore and Beaver.
- gpio-leds on Beaver.
- Power-supply/batter linkage on Dalmore.
* A minor fix to the RAM size node on Beaver.
It is based on previous pull request tegra-for-3.11-deps-for-usb
followed by a merge of tegra-for-3.11-deps-for-clk.
* tag 'tegra-for-3.11-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (21 commits)
ARM: tegra: enable audio on Beaver
ARM: tegra: enable audio on Dalmore
ARM: tegra: add power-supplies link between battery and charger
ARM: tegra: add audio-related nodes to Tegra114 DT
ARM: tegra114: convert device tree files to use CLK defines
ARM: tegra30: convert device tree files to use CLK defines
ARM: tegra20: convert device tree files to use CLK defines
ARM: tegra: Add charger subnode to tps65090 node
ARM: tegra: convert device tree files to use IRQ defines
ARM: tegra: convert device tree files to use GPIO defines
ARM: tegra: create a DT header defining GPIO IDs
ARM: tegra: use #include for all device trees
ARM: tegra: Add gpio-leds to Tegra30 Beaver
ARM: tegra: fix memory size on Beaver
ARM: tegra: enable spi4 on Dalmore
ARM: tegra114: create a DT header defining CLK IDs
ARM: tegra30: create a DT header defining CLK IDs
ARM: tegra20: create a DT header defining CLK IDs
ARM: tegra: update device trees for USB binding rework
ARM: tegra: modify ULPI reset GPIO properties
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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All Tegra GPIOs are named after the GPIO bank and GPIO number within
the bank. Define a macro to calculate the GPIO ID based on those
parameters. Make the macro available via all Tegra .dtsip files.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Create a header file to define the clock IDs used by the Tegra114 clock
binding. Remove the list of definitions from the binding documentation,
and refer the reader to the header file.
This will allow the same header to be used by both device tree files,
and drivers implementing this binding, which guarantees that the two
stay in sync. This also makes device trees more readable by using names
instead of magic numbers.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
[swarren, add header to clock/ instead of clk/ to match binding location]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Create a header file to define the clock IDs used by the Tegra30 clock
binding. Remove the list of definitions from the binding documentation,
and refer the reader to the header file.
This will allow the same header to be used by both device tree files,
and drivers implementing this binding, which guarantees that the two
stay in sync. This also makes device trees more readable by using names
instead of magic numbers.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
[swarren, add header to clock/ instead of clk/ to match binding location]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Create a header file to define the clock IDs used by the Tegra20 clock
binding. Remove the list of definitions from the binding documentation,
and refer the reader to the header file.
This will allow the same header to be used by both device tree files,
and drivers implementing this binding, which guarantees that the two
stay in sync. This also makes device trees more readable by using names
instead of magic numbers.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
[swarren, add header to clock/ instead of clk/ to match binding location]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
From Kukjin Kim:
Update exynos DT for
- usb3phy and dwc3 for exynos5250
- keypad for exynos4412
- TMU clock for exynos4210
- MFC clock for exynos4
- DP controller for exynos5250
- G2D clock for exynos4
- some exynos boards
* tag 'exynos-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (456 commits)
ARM: dts: add ohci and ehci controller nodes for EXYNOS5440
ARM: dts: Update G2D documentation for clock entries
ARM: dts: Add clock entries to G2D node for exynos4x12
ARM: dts: Add clock entries to G2D node for exynos4210
ARM: dts: Remove duplicate and add missing G2D nodes
clk: exynos4: Add additional G2D clocks
ARM: dts: Document DP clock in samsung,exynos5-dp binding
ARM: dts: add pin state information for DP HPD support to Exynos5250
ARM: dts: add dts node for the ahci sata exynos5440
ARM: dts: add vmmc regulator support for ODROID-X
ARM: dts: add max77686 node entry for ODROID-X
ARM: dts: Enable RTC by default on EXYNOS5440
ARM: dts: Add display timing node to exynos5250-arndale.dts
ARM: dts: Add clock provider information for DP controller in Exynos5250 SoC
ARM: dts: Add DT node for DP controller for Arndale Board
ARM: dts: Remove combiner IRQ node from exynos4x12.dtsi
ARM: dts: add max8997 device node for exynos4210-origen board
ARM: dts: Enable TMU on Origen4210 board
ARM: dts: Add TMU clock entries to exynos4210.dtsi
ARM: dts: Update MFC documentation for clock entries
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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From Nicolas Ferre:
Big DT-centric update for AT91:
- Calao boards update, removal of one board C file and
associated defconfig, Kconfig Makefile lines
- several Acme boards updates
- addition of watchdog, uart and pinctrl descriptions for
several products
- modification of RTC compatible string for 9x5 family
* tag 'at91-dt' of git://github.com/at91linux/linux-at91: (21 commits)
ARM: at91/dt: add pinctrl definition for at91 tc blocks
ARM: at91/dts: add the watchdog nodes for at91 boards
ARM: at91/dtsi: add the watchdog nodes for at91 SoC
ARM: at91: drop non DT: Calao USB-A96x
ARM: at91: dt: add Calao USB-A9G20 low power version
ARM: at91: dt: usb-a9263: add dataflash support
ARM: at91: dt: usb-a9263: update shutdown controller
ARM: at91: dt: usb-a9260: update shutdown controller
ARM: at91: dt: sam9260: add i2c gpio pinctrl
ARM: at91: switch Fox G20 board .dts to pre-processor defines
ARM: at91: add Acme Systems Fox G20 board
ARM: at91/at91-ariag25.dts: UART0/1 nodes are disabled
ARM: at91/at91sam9x5.dtsi: add UART0/1 nodes
ARM: at91/at91-ariag25.dts: add RTC node
ARM: at91: at91sam9x5 RTC is not compatible with at91rm9200 one
ARM: at91: udpate defconfigs
ARM: at91: dt: switch to standard IRQ flag defines
ARM: at91: dt: switch to pinctrl to pre-processor
ARM: at91: dt: add pinctrl pre-processor define
ARM: at91: dt: switch to standard GPIO flag defines.
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC specific changes from Arnd Bergmann:
"These changes are all to SoC-specific code, a total of 33 branches on
17 platforms were pulled into this. Like last time, Renesas sh-mobile
is now the platform with the most changes, followed by OMAP and
EXYNOS.
Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
branch, both containing almost no platform specific code at all, since
they are using generic subsystem interfaces for clocks, pinctrl,
interrupts etc. The device drivers are getting merged through the
respective subsystem maintainer trees.
One more SoC (u300) is now multiplatform capable and several others
(shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
towards that goal with this series but need more work.
Also noteworthy is the work on PCI here, which is traditionally part
of the SoC specific code. With the changes done by Thomas Petazzoni,
we can now more easily have PCI host controller drivers as loadable
modules and keep them separate from the platform code in
drivers/pci/host. This has already led to the discovery that three
platforms (exynos, spear and imx) are actually using an identical PCIe
host controller and will be able to share a driver once support for
spear and imx is added."
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
ARM: integrator: let pciv3 use mem/premem from device tree
ARM: integrator: set local side PCI addresses right
ARM: dts: Add pcie controller node for exynos5440-ssdk5440
ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
ARM: EXYNOS: Enable PCIe support for Exynos5440
pci: Add PCIe driver for Samsung Exynos
ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
ARM: keystone: Move CPU bringup code to dedicated asm file
ARM: multiplatform: always pick one CPU type
ARM: imx: select syscon for IMX6SL
ARM: keystone: select ARM_ERRATA_798181 only for SMP
ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
ARM: OMAP2+: AM43x: resolve SMP related build error
dmaengine: edma: enable build for AM33XX
ARM: edma: Add EDMA crossbar event mux support
ARM: edma: Add DT and runtime PM support to the private EDMA API
dmaengine: edma: Add TI EDMA device tree binding
arm: add basic support for Rockchip RK3066a boards
arm: add debug uarts for rockchip rk29xx and rk3xxx series
arm: Add basic clocks for Rockchip rk3066a SoCs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc
From Sekhar Nori:
DaVinci SoC updates for v3.11 - part 2
This pull request adds DT and runtime PM to
EDMA ARM private API so it can be used on
DT enabled DaVinci and OMAP platforms.
Also adds DMA channel crossbar mapping
support to be used by DT-enabled platforms
which use it.
* tag 'davinci-for-v3.11/soc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
dmaengine: edma: enable build for AM33XX
ARM: edma: Add EDMA crossbar event mux support
ARM: edma: Add DT and runtime PM support to the private EDMA API
dmaengine: edma: Add TI EDMA device tree binding
ARM: edma: Convert to devm_* api
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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EDMA supports a cross bar which provides ability
to mux additional events into physical channels
present in the channel controller.
This is required when the number of events present
in the system are more than number of available
physical channels.
Changes by Joel:
* Split EDMA xbar support out of original EDMA DT parsing patch
to keep it easier for review.
* Rewrite shift and offset calculation.
Suggested-by: Sekhar Nori <nsekhar@ti.com>
Suggested by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[nsekhar@ti.com: fix checkpatch errors and a minor coding improvement]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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