Add debounce support for ep93xx gpio interrupts.
On the EP93xx, GPIO ports A, B, and F can be used to generate
interrupts. For each port, if interrupts are enabled, it is
possible to debouce the input signal. Debouncing is implemented
by passing the input signal through a 2-bit shift register clocked
by a 128Hz clock.
This patch adds a platform specific way to enable the debouce
feature for these input ports.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Allow the ep93xx platform init code to register the built-in i2c bus.
The EP93xx processor has two GPIO pins dedicated for an I2C bus. This
patch registers the platform supplied i2c_board_info and the necessary
platform_device information for the i2c-gpio driver to use these pins.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add Cirrus Logic EDB9307A Dev Board to arch/arm/mach-ep93xx
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The AT91CAP9 revC CPU has a few differences over the previous,
revB CPU which was distributed in small quantities only (revA was
an internal Atmel product only).
This patch adds the detection routines to recognize the different
AT91CAP9 revisions (based on the PMC subsystem version number), and
uses them to:
- activate a workaround for the external interrupts levels
(on revB CPUs)
- set the UDPHS_BYPASS bit (on revB CPUs)
- set AT91_GPBR register address to the correct offset
(0xfffffd50 on revB, 0xfffffd60 on revC)
For debugging usage, the CPU revision can be found in /proc/cpuinfo
on the 'Revision' line.
This patch is extracted from Andrew Victor's -at91 patch (2.6.27-at91.patch)
where it has been tested for the last 6 months.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add support for the Adeneo NeoCore 926 board.
Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Convert the SAM9 and CAP9 board-specific files to make use of the
sam9_smc_configure() method to configure the memory-controller for
external peripherals.
The following boards have been modified:
cam60 : NAND
cap9adk : NAND, NOR
qil-a9260 : NAND
sam9-l9260 : NAND
sam9260ek : NAND
sam9261ek : DM9000 Ethernet, NAND
sam9263 : NAND
sam9g20ek : NAND
sam9rlek : NAND
usb-a9260 : NAND
usb-a9263 .: NAND
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In at91_add_device_nand(), do not configure the Static Memory
controller with specific timing values.
The *_devices.c files are board independent, and the SMC timing values
are specific to the NAND devices that are installed on the board.
The board-specific files are now responsible for configuring the
Static Memory controller (if the don't want to leave it up to a
bootloader).
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add a structure 'sam9_smc_config' and function sam9_smc_configure() to
allow the board-specific files to specify the configuration of the
Static Memory Controller per chip-select. This allows the board file
to specify timings for NAND flash, NOR flash or other external
peripherals.
This functionality can be used for all the SAM9 and CAP9 processors.
(the AT91RM9200 has a different memory-controller)
This patch is based on similar code in the AVR32 architecture.
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
stex sets the timeout in its slave configure routine for all devices.
This now needs to update the request queue timeout in block.
Cc: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
scsi_eh_try_stu() was still using the timeout parameter in the device
which is now not set (i.e. zero filled) meaning that it waited no time
at all for the start unit command to complete (leading the routine to
conclude failure every time). This lead to a 2.6.27 regression:
http://bugzilla.kernel.org/show_bug.cgi?id=12120
Where firewire devices that were non spec compliant wouldn't spin up.
Fix this by using the block queue timeout value instead.
Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
megaraid_sas sets the timeout in its slave configure routine for devices
on special channels. This now needs to update the request queue timeout
in block.
Cc: "Yang, Bo" <Bo.Yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
ibmvscsi sets the timeout in its slave configure routine for disk
devices. This now needs to update the request queue timeout in block.
Cc: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
aacraid updates the timeout in its slave configure routine if it is too
small. This now needs to update the request queue timeout in block.
Cc: AACRAID list <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Apple ALU wireless keyboards are bluetooth devices
HID: remove setup mutex, fix possible deadlock
HID: add USB ID for another dual gameron adapter
HID: unignore mouse on unibody macbooks
HID: fix blacklist entries for greenasia/pantherlord
We alloc a fake tty in usb serial console setup function. we should
init the tty's kref otherwise we will face WARN_ON after following
invoke of tty_port_tty_set --> tty_kref_get.
Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When no console is configured tty_open tries to call kref_get on a NULL
pointer, return ENODEV instead.
Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The zfcp_scsi_queuecommand was not acting according to the standard
when the respective unit was not available. In this case an -EBUSY was
returned, which is not valid in itself, and in addition scsi_done
was called. This combination is not allowed and was leading to a
double finish of the request and therefor double decrement of the
host_busy counter.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Waiting for the ERP to be finished in a task running in the global
kernel work-queue is a bad idea, especially if the ERP needs to run
another job in this work-queue before it can finish. -> deadlock.
This patch removes the necessity to wait for a finished ERP from the
scan task and moves the job scheduling to the end of the ERP.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The check of having a valid pointer was performed before the
processing was secured by the lock. Between those two steps the
pointer can turn invalid. During further processing another value is
used (referenced by the pointer described above) as a function pointer
which is never verified to be valid either, resulting under some
circumstances in an invalid function call. This patch is fixing both
issues.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Prevent a SCSI target scan for a rport which have turned invalid
in the meantime.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Aborting a SCSI cmnd might requrie to send a abort_fsf_cmnd. If the
creation of this fsf_req fails an ERR_PTR is returned where a NULL
value would be expected as an error indicator. This ERR_PTR is
dereferenced as valid fsf_req in succeeding processing leading to
an error.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Running two wka_port_get calls in parallel could issue two open_port
requests, overwriting the port handle. Don't issue an open_port
for the state PORT_OPENING, and only read the data from GOOD
responses.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
For an incoming RSCN it was checked by the ZFCP_STATUS_PORT_DID_DID
define to re-open a remote port or to test the connection. Since this
define was re-used it was also necessary to replace that define with
ZFCP_STATUS_PORT_PHYS_OPEN.
Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: serial: add more Onda device ids to option driver
USB: usb-storage: unusual_devs entry for Nikon D2H
USB: storage: unusual_devs entry for Mio C520-GPS
USB: fsl_usb2_udc: Report disconnect before unbinding
USB: fsl_qe_udc: Report disconnect before unbinding
USB: fix SB600 USB subsystem hang bug
Revert "USB: improve ehci_watchdog's side effect in CPU power management"
The zone's rotation statistics must not be accessed without the
corresponding LRU lock held. Fix an unprotected write in
shrink_active_list().
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit e669dae614, since it
is incomplete, and clashes with fuller patches and the sparc 32/64
unification effort.
Requested-by: David Miller <davem@davemloft.net>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When the "hpwdt" module is loaded (even if the /dev/watchdog device is not
opened), then kdump does not work. The panic kernel either does not start at
all or crash in various places.
The problem is that hpwdt_pretimeout is registered with register_die_notifier()
with the highest possible priority. Because it returns NOTIFY_STOP, the
crash_nmi_callback which is also registered with register_die_notifier()
is never executed. This causes the shutdown of other CPUs to fail.
Reverting the order is no option: The crash_nmi_callback executes HLT
and so never returns normally. Because of that, it must be executed as
last notifier, which currently is done.
So, that patch returns NOTIFY_OK to keep the crash_nmi_callback executed.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
This seems to be missing from the arm:devel branch, though the other
RealView configurations were modified accordingly.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The original file was based on 2.6.19-rc3. Apart from the new symbols,
the explicitly enabled eatures are AEABI, REALVIEW_HIGH_PHYS_OFFSET and
MACH_REALVIEW_PB11MP.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The original file was based on 2.6.14-rc2. Apart from the new symbols,
the explicitly enabled features are AACI, MMC, AEABI,
MACH_REALVIEW_PB1176 and MACH_REALVIEW_PB11MP.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch adds smc911x.c device configuration to the RealView
platforms. At some point it may be changed to the new smsc911x.c driver
(once complete testing was done).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch moves the Ethernet device registration from individual
realview_*.c files to core.c.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Some of the calls weren't necessary and some others were duplicated.
This patch tidies up the platsmp.c file.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
All the cases where the local timer for a CPU is accessed happen on the
corresponding current CPU, hence no need to access the per-CPU local
timer mappings.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch adds the necessary definitions and Kconfig entries to enable
Cortex-A9 (ARMv7 SMP) tiles on the RealView/EB board.
Signed-off-by: Jon Callan <Jon.Callan@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The MCR for flushing the whole D cache is undefined on ARMv7 CPUs.
Signed-off-by: Harry Fearnhamm <Harry.Fearnhamm@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch adds support for RealView/PB-A8, a platform based on
Cortex-A8 with support for PCI-E and compact flash.
Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
RealView boards like PB11MPCore have 512MB of RAM available contiguously
at 0x70000000. Half of the memory is mirrored at 0x00000000 for
backwards compatibility. This patch adds the
CONFIG_REALVIEW_HIGH_PHYS_OFFSET option option to change the physical
base address so that the full amount of RAM is available to Linux. Note
that the EB board has 256MB of RAM also mirrored at 0x70000000, the only
board without this feature being PB1176.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Impact: update code example in documentation
* Dr. David Alan Gilbert (dave@treblig.org) wrote:
[...]
> I noticed while looking at something else that the example in
> local_ops.txt still has the 4 operand on_each_cpu in the latest git;
> I don't know the rest of the code around there very well so I thought
> it best to mention it rather than post a patch.
Reported-by: Dr. David Alan Gilbert <dave@treblig.org>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Update to use the asm/sections.h header rather than declaring these
symbols ourselves. Change __data_start to _data to conform with the
naming found within asm/sections.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Impact: do not expose a control that has no effect
Fix to prevent sched_mc_power_saving from being exported through sysfs
on single-socket systems. (Say multicore single socket (Laptop))
CPU core map of the boot cpu should be equal to possible number
of cpus for single socket system.
This fix has been developed at FOSS.in kernel workout.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This patch adds an unusual_devs entry for the Nikon D2H camera.
From: Tobias Kunze Briseño <t@fictive.com>,
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1176) adds an unusual_devs entry for the Mio C520 GPS
unit. Other devices also based on the Mitac hardware use the same USB
interface firmware, so the Vendor and Product names are generalized.
This fixes Bugzilla #11583.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Tamas Kerecsen <kerecsen@bigfoot.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gadgets disable endpoints in their disconnect callbacks, so
we must call disconnect before unbinding. This also fixes
muram memory leak, since we free muram in the qe_ep_disable().
But mainly the patch fixes following badness:
root@b1:~# insmod fsl_qe_udc.ko
fsl_qe_udc: Freescale QE/CPM USB Device Controller driver, 1.0
fsl_qe_udc e01006c0.usb: QE USB controller initialized as device
root@b1:~# insmod g_ether.ko
g_ether gadget: using random self ethernet address
g_ether gadget: using random host ethernet address
usb0: MAC be:2d:3c:fa:be:f0
usb0: HOST MAC 62:b8:6a:df:38:66
g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
g_ether gadget: g_ether ready
fsl_qe_udc e01006c0.usb: fsl_qe_udc bind to driver g_ether
g_ether gadget: high speed config #1: CDC Ethernet (ECM)
root@b1:~# rmmod g_ether.ko
------------[ cut here ]------------
Badness at drivers/usb/gadget/composite.c:871
[...]
NIP [d10c1374] composite_unbind+0x24/0x15c [g_ether]
LR [d10a82f4] usb_gadget_unregister_driver+0x128/0x168 [fsl_qe_udc]
Call Trace:
[cfb93e80] [cfb1f3a0] 0xcfb1f3a0 (unreliable)
[cfb93eb0] [d10a82f4] usb_gadget_unregister_driver+0x128/0x168 [fsl_qe_udc]
[cfb93ed0] [d10c2a3c] usb_composite_unregister+0x3c/0x4c [g_ether]
[cfb93ee0] [c006bde0] sys_delete_module+0x130/0x19c
[cfb93f40] [c00142d8] ret_from_syscall+0x0/0x38
[...]
fsl_qe_udc e01006c0.usb: unregistered gadget driver 'g_ether'
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is required for all AMD SB600 revisions to avoid USB subsystem hang
symptom. The USB subsystem hang symptom is observed when the system has
multiple USB devices connected to it. In some cases a USB hub may be required
to observe this symptom.
Reported in bugzilla as #11599, the similar patch for SB700 old revision is:
commit b09bc6cbae
Reported-by: raffaele <ralfconn@tele2.it>
Tested-by: Roman Mamedov <roman@rm.pp.ru>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
