If a power supply has a scope of "Device", then allow the power supply
to indicate what device it actually powers. This is represented in the
power supply's sysfs directory as a symlink named "powers", which points to
the sysfs directory of the powered device.
If the device has children, then the sub-devices are also powered by
the same power supply.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Richard Hughes <richard@hughsie.com>
This adds a "scope" attribute to a power_supply, which indicates how
much of the system it powers. It appears in sysfs as "scope" or in
the uevent file as POWER_SUPPLY_SCOPE=. There are presently three
possible values:
Unknown - unknown power topology
System - the power supply powers the whole system
Device - it powers a specific device, or tree of devices
A power supply which doesn't have a "scope" attribute should be assumed to
have "System" scope.
In general, usermode should assume that loss of all System-scoped power
supplies will power off the whole system, but any single one is sufficient
to power the system.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Richard Hughes <richard@hughsie.com>
* 'fixes' of git://git.linaro.org/people/triad/linux-pinctrl:
pinctrl: hide subsystem from the populace
pinctrl: fix "warning: 'struct pinctrl_dev' declared inside parameter list"
* 'rmobile-fixes-for-linus' of git://github.com/pmundt/linux-sh:
ARM: mach-shmobile: cpuidle single/global and last_state fixes
ARM: mach-shmobile: move helper macro PORTCR to sh_pfc.h
ARM: mach-shmobile: move helper macro PORT_xx to sh_pfc.h
ARM: mach-shmobile: move helper macro PORT_DATA_xx to sh_pfc.h
ARM: mach-shmobile: ap4evb: remove white space from end of line
ARM: mach-shmobile: clock-sh7372: remove un-necessary index
ARM: mach-shmobile: kota2: add comment out separator
ARM: mach-shmobile: sh73a0: add MMC data pin pull-up
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Use kmemdup rather than duplicating its implementation
ALSA: hda - Re-enable the check NO_PRESENCE misc bit
ALSA: vmaster - Free slave-links when freeing the master element
ALSA: hda - Don't add elements of other codecs to vmaster slave
ALSA: intel8x0: improve virtual environment detection
ALSA: intel8x0: move virtual environment detection code into one place
ALSA: snd_usb_audio: add Logitech HD Webcam c510 to quirk-384
ALSA: hda - fix internal mic on Dell Vostro 3500 laptop
ALSA: HDA: Remove quirk for Toshiba T110
ALSA: usb-audio - Fix the missing volume quirks at delayed init
ALSA: hda - Mute unused capture sources for Realtek codecs
ALSA: intel8x0: Improve comments for VM optimization
ASoC: Ensure we get an impedence reported for WM8958 jack detect
ASoC: Don't use wm8994->control_data when requesting IRQs
ASoC: Don't use wm8994->control_data in wm8994_readable_register()
ASoC: Update git repository URL
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (42 commits)
drm/radeon/kms/pm: switch to dynamically allocating clock mode array
drm/radeon/kms: optimize r600_pm_profile_init
drm/radeon/kms/pm: add a proper pm profile init function for fusion
drm/radeon/kms: remove extraneous calls to radeon_pm_compute_clocks()
drm/exynos: added padding to be 64-bit align.
drm: fix kconfig unmet dependency warning
drm: add some comments to drm_wait_vblank and drm_queue_vblank_event
drm/radeon/benchmark: signedness bug in radeon_benchmark_move()
drm: do not sleep on vblank while holding a mutex
MAINTAINERS: exynos: Add EXYNOS DRM maintainer entry
drm: try to restore previous CRTC config if mode set fails
drm/radeon/kms: make an aux failure debug only
drm: drop select of SLOW_WORK
drm: serialize access to list of debugfs files
drm/radeon/kms: fix use of vram scratch page on evergreen/ni
drm/radeon: Make sure CS mutex is held across GPU reset.
drm: Ensure string is null terminated.
vmwgfx: Only allow 64x64 cursors
vmwgfx: Initialize clip rect loop correctly in surface dirty
vmwgfx: Close screen object system
...
Nouveau, when configured with debugfs, creates debugfs files for every
channel, so structure holding list of files needs to be protected from
simultaneous changes by multiple threads.
Without this patch it's possible to hit kernel oops in
drm_debugfs_remove_files just by running a couple of xterms with
looped glxinfo.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This patch moves PORT_xx helper macro to sh_pfc.h,
and it expects CPU_ALL_PORT() macro for each CPU
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Now that all of the named string association with clocks has been
migrated to clkdev lookups there's no meaningful named topology that can
be constructed for a debugfs tree view. Get rid of the left over bits,
and shrink struct clk a bit in the process.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
when pinctl subsystem is not selected, when compiling drivers including
the include/linux/pinctrl/pinctrl.h, we will get the warning as below:
In file included from include/linux/pinctrl/pinmux.h:17,
from drivers/tty/serial/sirfsoc_uart.c:25:
include/linux/pinctrl/pinctrl.h:126: warning: 'struct pinctrl_dev'
declared inside parameter list
include/linux/pinctrl/pinctrl.h:126: warning: its scope is only this
definition or declaration, which is probably not what you want
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix below build warning:
CC arch/arm/mach-omap2/hwspinlock.o
In file included from arch/arm/mach-omap2/hwspinlock.c:22:
include/linux/hwspinlock.h: In function '__hwspin_unlock':
include/linux/hwspinlock.h:121: warning: 'return' with a value, in function returning void
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
The "private_date" field in struct devfreq_dev_status almost certainly
wants to be "private_data"; since there are no in-tree users of this
functionality, now seems like an easy time to make the fix.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
forcedeth: fix a few sparse warnings (variable shadowing)
forcedeth: Improve stats counters
forcedeth: remove unneeded stats updates
forcedeth: Acknowledge only interrupts that are being processed
forcedeth: fix race when unloading module
MAINTAINERS/rds: update maintainer
wanrouter: Remove kernel_lock annotations
usbnet: fix oops in usbnet_start_xmit
ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined
etherh: Add MAINTAINERS entry for etherh
bonding: comparing a u8 with -1 is always false
sky2: fix regression on Yukon Optima
netlink: clarify attribute length check documentation
netlink: validate NLA_MSECS length
i825xx:xscale:8390:freescale: Fix Kconfig dependancies
macvlan: receive multicast with local address
tg3: Update version to 3.121
tg3: Eliminate timer race with reset_task
tg3: Schedule at most one tg3_reset_task run
tg3: Obtain PCI function number from device
...
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
cpuidle: Single/Global registration of idle states
cpuidle: Split cpuidle_state structure and move per-cpu statistics fields
cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare()
cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state
ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning
ACPI: Export FADT pm_profile integer value to userspace
thermal: Prevent polling from happening during system suspend
ACPI: Drop ACPI_NO_HARDWARE_INIT
ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast()
PNPACPI: Simplify disabled resource registration
ACPI: Fix possible recursive locking in hwregs.c
ACPI: use kstrdup()
mrst pmu: update comment
tools/power turbostat: less verbose debugging
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (40 commits)
vmwgfx: Snoop DMA transfers with non-covering sizes
vmwgfx: Move the prefered mode first in the list
vmwgfx: Unreference surface on cursor error path
vmwgfx: Free prefered mode on error path
vmwgfx: Use pointer return error codes
vmwgfx: Fix hw cursor position
vmwgfx: Infrastructure for explicit placement
vmwgfx: Make the preferred autofit mode have a 60Hz vrefresh
vmwgfx: Remove screen object active list
vmwgfx: Screen object cleanups
drm/radeon/kms: consolidate GART code, fix segfault after GPU lockup V2
drm/radeon/kms: don't poll forever if MC GDDR link training fails
drm/radeon/kms: fix DP setup on TRAVIS bridges
drm/radeon/kms: set HPD polarity in hpd_init()
drm/radeon/kms: add MSI module parameter
drm/radeon/kms: Add MSI quirk for Dell RS690
drm/radeon/kms: Add MSI quirk for HP RS690
drm/radeon/kms: split MSI check into a separate function
vmwgfx: Reinstate the update_layout ioctl
drm/radeon/kms: always do extended edid probe
...
* git://git.infradead.org/mtd-2.6: (226 commits)
mtd: tests: annotate as DANGEROUS in Kconfig
mtd: tests: don't use mtd0 as a default
mtd: clean up usage of MTD_DOCPROBE_ADDRESS
jffs2: add compr=lzo and compr=zlib options
jffs2: implement mount option parsing and compression overriding
mtd: nand: initialize ops.mode
mtd: provide an alias for the redboot module name
mtd: m25p80: don't probe device which has status of 'disabled'
mtd: nand_h1900 never worked
mtd: Add DiskOnChip G3 support
mtd: m25p80: add EON flash EN25Q32B into spi flash id table
mtd: mark block device queue as non-rotational
mtd: r852: make r852_pm_ops static
mtd: m25p80: add support for at25df321a spi data flash
mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks
mtd: nand: switch `check_pattern()' to standard `memcmp()'
mtd: nand: invalidate cache on unaligned reads
mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set
mtd: nand: wait to set BBT version
mtd: nand: scrub BBT on ECC errors
...
Fix up trivial conflicts:
- arch/arm/mach-at91/board-usb-a9260.c
Merged into board-usb-a926x.c
- drivers/mtd/maps/lantiq-flash.c
add_mtd_partitions -> mtd_device_register vs changed to use
mtd_device_parse_register.
