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The Intel Panther Point chipsets contain an EHCI and xHCI host controller
that shares some number of skew-dependent ports. These ports can be
switched from the EHCI to the xHCI host (and vice versa) by a hardware MUX
that is controlled by registers in the xHCI PCI configuration space. The
USB 3.0 SuperSpeed terminations on the xHCI ports can be controlled
separately from the USB 2.0 data wires.
This switchover mechanism is there to support users who do a custom
install of certain non-Linux operating systems that don't have official
USB 3.0 support. By default, the ports are under EHCI, SuperSpeed
terminations are off, and USB 3.0 devices will show up under the EHCI
controller at reduced speeds. (This was more palatable for the marketing
folks than having completely dead USB 3.0 ports if no xHCI drivers are
available.) Users should be able to turn on xHCI by default through a
BIOS option, but users are happiest when they don't have to change random
BIOS settings.
This patch introduces a driver method to switchover the ports from EHCI to
xHCI before the EHCI driver finishes PCI enumeration. We want to switch
the ports over before the USB core has the chance to enumerate devices
under EHCI, or boot from USB mass storage will fail if the boot device
connects under EHCI first, and then gets disconnected when the port
switches over to xHCI.
Add code to the xHCI PCI quirk to switch the ports from EHCI to xHCI. The
PCI quirks code will run before any other PCI probe function is called, so
this avoids the issue with boot devices.
Another issue is with BIOS behavior during system resume from hibernate.
If the BIOS doesn't support xHCI, it may switch the devices under EHCI to
allow use of the USB keyboard, mice, and mass storage devices. It's
supposed to remember the value of the port routing registers and switch
them back when the OS attempts to take control of the xHCI host controller,
but we all know not to trust BIOS writers.
Make both the xHCI driver and the EHCI driver attempt to switchover the
ports in their PCI resume functions. We can't guarantee which PCI device
will be resumed first, so this avoids any race conditions. Writing a '1'
to an already set port switchover bit or a '0' to a cleared port switchover
bit should have no effect.
The xHCI PCI configuration registers will be documented in the EDS-level
chipset spec, which is not public yet. I have permission from legal and
the Intel chipset group to release this patch early to allow good Linux
support at product launch. I've tried to document the registers as much
as possible, so please let me know if anything is unclear.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net: Kill ratelimit.h dependency in linux/net.h
net: Add linux/sysctl.h includes where needed.
net: Kill ether_table[] declaration.
inetpeer: fix race in unused_list manipulations
atm: expose ATM device index in sysfs
IPVS: bug in ip_vs_ftp, same list heaad used in all netns.
bug.h: Move ratelimit warn interfaces to ratelimit.h
bonding: cleanup module option descriptions
net:8021q:vlan.c Fix pr_info to just give the vlan fullname and version.
net: davinci_emac: fix dev_err use at probe
can: convert to %pK for kptr_restrict support
net: fix ETHTOOL_SFEATURES compatibility with old ethtool_ops.set_flags
netfilter: Fix several warnings in compat_mtw_from_user().
netfilter: ipset: fix ip_set_flush return code
netfilter: ipset: remove unused variable from type_pf_tdel()
netfilter: ipset: Use proper timeout value to jiffies conversion
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
loop: export module parameters
block: export blk_{get,put}_queue()
block: remove unused variable in bio_attempt_front_merge()
block: always allocate genhd->ev if check_events is implemented
brd: export module parameters
brd: fix comment on initial device creation
brd: handle on-demand devices correctly
brd: limit 'max_part' module param to DISK_MAX_PARTS
brd: get rid of unused members from struct brd_device
block: fix oops on !disk->queue and sysfs discard alignment display
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] mm: add ZONE_DMA to 31-bit config again
[S390] mm: add page fault retry handling
[S390] mm: handle kernel caused page fault oom situations
[S390] delay: implement ndelay
[S390] topology,sched: fix cpu_coregroup_mask/cpu_book_mask definitions
[S390] hwsampler: allow cpu hotplug
[S390] uaccess: turn __access_ok() into a define
[S390] irq: merge irq.c and s390_ext.c
[S390] irq: fix service signal external interrupt handling
[S390] pfault: always enable service signal interrupt
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
[media] v1.88 DM04/QQBOX Move remote to use rc_core dvb-usb-remote
[media] Add missing include guard to header file
[media] Inlined functions should be static
[media] Remove invalid parameter description
[media] cpia2: fix warning about invalid trigraph sequence
[media] s5p-csis: Add missing dependency on PLAT_S5P
[media] gspca/kinect: wrap gspca_debug with GSPCA_DEBUG
[media] fintek-cir: new driver for Fintek LPC SuperIO CIR function
[media] uvcvideo: Connect video devices to media entities
[media] uvcvideo: Register subdevices for each entity
[media] uvcvideo: Register a v4l2_device
[media] add V4L2-PIX-FMT-SRGGB12 & friends to docbook
[media] Documentation/DocBook: Rename media fops xml files
[media] Media DocBook: fix validation errors
[media] wl12xx: g_volatile_ctrl fix: wrong field set
[media] fix kconfig dependency warning for VIDEO_TIMBERDALE
[media] dm1105: GPIO handling added, I2C on GPIO added, LNB control through GPIO reworked
[media] Add support for M-5MOLS 8 Mega Pixel camera ISP
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git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (42 commits)
regulator: Fix _regulator_get_voltage if get_voltage callback is NULL
USB: TWL6025 allow different regulator name
REGULATOR: TWL6025: add support to twl-regulator
regulator: twl6030: do not write to _GRP for regulator disable
regulator: twl6030: do not write to _GRP for regulator enable
TPS65911: Comparator: Add comparator driver
TPS65911: Add support for added GPIO lines
GPIO: TPS65910: Move driver to drivers/gpio/
TPS65911: Add new irq definitions
regulator: tps65911: Add new chip version
MFD: TPS65910: Add support for TPS65911 device
regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage
regulator: mc13892: Fix voltage unit in test case.
regulator: Remove MAX8997_REG_BUCK1DVS/MAX8997_REG_BUCK2DVS/MAX8997_REG_BUCK5DVS macros
mfd: Fix off-by-one value range checking for tps65910_i2c_write
regulator: Only apply voltage constraints from consumers that set them
regulator: If we can't configure optimum mode we're always in the best one
regulator: max8997: remove useless code
regulator: Fix memory leak in max8998_pmic_probe failure path
regulator: Fix desc_id for tps65023/6507x/65910
...
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* git://git.infradead.org/battery-2.6:
PXA: Use dev_pm_ops in z2_battery
ds2760_battery: Fix rated capacity of the hx4700 1800mAh battery
ds2760_battery: Fix indexing of the 4 active full EEPROM registers
power: Make test_power driver more dynamic.
bq27x00_battery: Name of cycle count property
max8903_charger: Add GENERIC_HARDIRQS as a dependency (fixes S390 build)
ARM: RX-51: Enable isp1704 power on/off
isp1704_charger: Allow board specific powering routine
gpio-charger: Add gpio_charger_resume
power_supply: Add driver for MAX8903 charger
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The AR9287 calibration code was not being called because of an
incorrect MAC revision check.
This forced the AR9287 to use the AR9285 initial calibration code and
bypass the AR9287 code entirely.
Signed-off-by: Adrian Chadd <adrian@freebsd.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We make oldconfig every time when a new kernel arrives, but
if we don't have such a device(I guess this is the most common
case for a new device), the default value should be 'n' so
that the kernel size we build doesn't grow up too much quickly.
For anyone who has the device, it is OK for them to turn it on
by themselves.
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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rx_status.band is used uninitialized, what disallow to work on 5GHz .
Cc: stable@kernel.org # 2.6.39+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Acer WMID_GUID1/2 method's return value was declared to integer
type on Gateway notebook.
So, add this patch for support integer return type.
Reference: bko#33032
https://bugzilla.kernel.org/show_bug.cgi?id=33032
Tested on Gateway NV5909H laptop
Tested-by: Filipus Klutiero <chealer@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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load_scm_model_init
There have section mismatch warning message shows up when building
the kernel with make CONFIG_DEBUG_SECTION_MISMATCH=y.
The problem is the load_scm_model_init() calls msi_laptop_input_setup()
which is an __init function, but load_scm_model_init() lacks a __init
annotation.
This patch add __init on load_scm_model_init() to avoid warning message.
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Have many Acer notebooks' BIOS already support new WMID_GUID3 method.
On those machines, that will be better set communication device by
evaluate WMID_GUID3 method.
Tested on Acer Travelmate 8572
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Acer WMID_GUID1/2 method's return buffer was declared to 64-bits
on some Acer notebook, but WMI method only use 32-bits in return
buffer.
So, add this patch for allow 64-bits return buffer.
Reference: bko#34142
https://bugzilla.kernel.org/show_bug.cgi?id=34142
Tested on Acer Travelmate 5735Z-452G32Mnss
Tested-by: Melchior FRANZ <melchior.franz@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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That will be better to check the existence of internal 3G device when
we set threeg capability and generate killswitch for threeg. It can
avoid userland access 3G rfkill but the machine doesn't have internal
3G device.
Reference: bko#32862
https://bugzilla.kernel.org/show_bug.cgi?id=32862
Tested on Acer Aspire 8930G, Acer Travelmate 8572
Tested-by: Hector Martin <hector@marcansoft.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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variable handle is not used in these two functions,
just delete them.
Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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On an Acer Travelmate 5735Z-452G32Mnss the WLAN-enable/disable key
doesn't send 0x1 as acpi event key code, but 0x3. This patch also
makes the module ignore hotkey acpi events for functions that are
already handled without. This avoids warning message "keyboard:
can't emulate rawmode for keycode 240".
Signed-off-by: Melchior FRANZ <mfranz@aon.at>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: Ameya Palande <2ameya@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: Ameya Palande <2ameya@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This patch:
1. Removes unnecessay #defines
2. Removes 'mfld_pb_priv' data structure which results in simpler error
handling and less memory allocations.
Signed-off-by: Ameya Palande <2ameya@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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* The acerhdf driver isn't an ACPI driver, so it needs not include
<acpi/acpi_drivers.h>. All it uses is ec_read() and ec_write(), for
which <linux/acpi.h> is sufficient.
* I couldn't find any reason why <linux/fs.h> and <linux/sched.h> were
included.
This should avoid unneeded rebuilds of the acerhdf driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Peter Feuerer <peter@piie.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The THERMAL_HWMON config option simply exposes the thermal zone
temperature values and limits to user-space. It makes no sense for a
kernel driver to depend on this.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Peter Feuerer <peter@piie.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The driver set module parameter value: mailled, threeg and brightness
to BIOS by evaluate wmi method when driver was initialed. The default
values for those parameters are -1, so, that will be better don't set
negative value to BIOS.
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This driver implements an Extra ACPI EC driver for products based on Intel
Oaktrail platform.
This driver does below things:
1. registers itself in the Linux backlight control in
/sys/class/backlight/intel_oaktrail/
2. registers in the rfkill subsystem here: /sys/class/rfkill/rfkillX/
for these components: wifi, bluetooth, wwan (3g), gps
Signed-off-by: Yin Kangkai <kangkai.yin@linux.intel.com>
[Extracted from a bigger patch by Yin Kangkai, this version leaves out some
sysfs bits that probably want to be driver managed, and ACPI i2c enumeration]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt.
Removed local TPACPI_<level> #defines, convert to pr_<level>.
Neaten dbg_<foo> macros.
Added a few missing newlines to logging messages.
Added static inline str_supported for !CONFIG_THINKPAD_ACPI_DEBUG vdbg_printk
defect reported by Sedat Dilek <sedat.dilek@googlemail.com>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Move TPACPI_HANDLE declaration into #ifdef block
and neaten it a bit.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Before fixing checkpatch.pl reported 74 errors and 234 warnings
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Use the current logging styles.
Remove local #define PREFIX.
Add pr_fmt.
Convert printk to pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Just neatening.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt.
Remove local MY_<foo> #defines.
Convert printks to pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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To be similar to all other uses.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Use the more normal logging styles.
Removed now unused local logging #defines.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt.
Remove now unused #define DRV_PRX.
Neaten dprintk macro.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Added pr_fmt.
Removed now unused #define DRV_PFX
Convert dprintk to pr_debug.
Convert printks to pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Just making it a bit more like other logging message uses.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add #define pr_fmt(fmt) "%s: " fmt, __func__
to prefix function name to each output message.
Convert printks to pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt to prefix the logging messages.
Convert printk to pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt to prefix logging messages.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Remove hard coded prefixes from logging messages.
Neaten RTL_DEBUG macro and uses.
Convert __FUNCTION__ to __func__.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Added pr_fmt and converted printks to pr_<level>.
Removed now unused PREFIX and UNIMPL #defines.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Added pr_fmt, converted printks and removed
hard coded prefixes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Added pr_fmt, converted printks and removed
hard coded prefixes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Just a trivial pr_warning to pr_warn conversion
while adding a few missing newlines.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt.
Remove hard coded prefixes and use pr_<level>.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt.
Convert printks to pr_<level> removing DRIVER_NAME prefix.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add pr_fmt, prefixes each log message.
Convert printks to pr_<level>.
Convert pr_warning to pr_warn.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Convert pr_warning to pr_warn.
Add some missing newlines to pr_<level> uses.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Just print them as %p.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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It's used by a non-init function.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Move OMAP GPIO driver to drivers/gpio. Builds whenever
CONFIG_ARCH_OMAP=y.
Signed-off-by: Kevin Hilman <khilman@ti.com>
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