Paul Gortmaker
9deaa53ac7
serial: add irq handler for Freescale 16550 errata. ...
Sending a break on the SOC UARTs found in some MPC83xx/85xx/86xx
chips seems to cause a short lived IRQ storm (/proc/interrupts
typically shows somewhere between 300 and 1500 events). Unfortunately
this renders SysRQ over the serial console completely inoperable.
The suggested workaround in the errata is to read the Rx register,
wait one character period, and then read the Rx register again.
We achieve this by tracking the old LSR value, and on the subsequent
interrupt event after a break, we don't read LSR, instead we just
read the RBR again and return immediately.
The "fsl,ns16550" is used in the compatible field of the serial
device to mark UARTs known to have this issue.
Thanks to Scott Wood for providing the errata data which led to
a much cleaner fix.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-09 19:14:13 -08:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2011-11-04 18:02:25 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
libceph: Allocate larger oid buffer in request msgs
2011-11-11 09:50:19 -08:00
Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6
2011-11-03 09:40:51 -07:00
regulator: TPS65910: Fix VDD1/2 voltage selector count
2011-11-23 14:03:52 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
2011-11-01 10:51:38 -07:00
mmc: fix compile error when CONFIG_BLOCK is not enabled
2011-10-27 09:11:34 -04:00
Merge git://git.infradead.org/mtd-2.6
2011-11-07 09:11:16 -08:00
netfilter: export NAT definitions through linux/netfilter_ipv4/nf_nat.h
2011-11-01 09:19:52 +01:00
pinctrl: fix "warning: 'struct pinctrl_dev' declared inside parameter list"
2011-11-09 15:07:40 +01:00
drivers/leds/leds-renesas-tpu.c: move Renesas TPU LED driver platform data
2011-10-31 17:30:55 -07:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
backlight: fix broken regulator API usage in l4f00242t03
2011-10-31 17:30:54 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2011-10-31 15:42:54 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
aio: allocate kiocbs in batches
2011-11-02 16:07:03 -07:00
mmc: atmel-mci: change namespace
2011-10-26 15:43:25 -04:00
mmc: atmel-mci: use ATMEL_PDC_SCND_BUF_OFF instead of a literal value
2011-10-26 15:43:26 -04:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
writeback: Add a 'reason' to wb_writeback_work
2011-10-31 00:33:36 +08:00
bio: change some signed vars to unsigned
2011-11-16 09:21:50 +01:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
memcg: replace ss->id_lock with a rwlock
2011-11-02 16:07:03 -07:00
mm: compaction: make compact_zone_order() static
2011-10-31 17:30:49 -07:00
Cross Memory Attach
2011-10-31 17:30:44 -07:00
PM / Sleep: Remove unused symbol 'suspend_cpu_hotplug'
2011-11-04 22:28:09 +01:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2011-11-07 10:13:52 -08:00
[S390] kdump: Add size to elfcorehdr kernel parameter
2011-10-30 15:16:41 +01:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
vfs: add d_prune dentry operation
2011-11-02 12:53:43 +01:00
PM / devfreq: fix private_data
2011-11-07 23:54:53 +01:00
dm table: add immutable feature
2011-10-31 20:19:04 +00:00
Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2011-11-21 20:36:26 -08:00
device_cgroup.h: delete needless include <linux/module.h>
2011-10-31 19:32:26 -04:00
dm table: add immutable feature
2011-10-31 20:19:04 +00:00
dm kcopyd: add dm_kcopyd_zero to zero an area
2011-10-31 20:18:58 +00:00
dm log userspace: add log device dependency
2011-10-31 20:21:24 +00:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2011-11-06 17:12:03 -08:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
include/linux/dmar.h: forward-declare struct acpi_dmar_header
2011-10-31 17:30:44 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
edac: Move edac main structs to include/linux/edac.h
2011-10-31 15:10:04 -02:00
[S390] signal race with restarting system calls
2011-10-30 15:16:43 +01:00
bonding: comparing a u8 with -1 is always false
2011-11-04 18:37:23 -04:00
module.h: split out the EXPORT_SYMBOL into export.h
2011-10-31 09:20:11 -04:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-11-02 10:06:20 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
PM / Freezer: Reimplement wait_event_freezekillable using freezer_do_not_count/freezer_count
2011-11-04 22:28:15 +01:00
new helper: mount_subtree()
2011-11-16 22:00:34 -05:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk"
2011-11-10 09:03:55 +01:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
thp: mremap support and TLB optimization
2011-10-31 17:30:48 -07:00
hugetlb: remove dummy definitions of HPAGE_MASK and HPAGE_SIZE
2011-11-19 06:15:59 -05:00
hwspinlock: Don't return a value in __hwspin_unlock
2011-11-08 09:28:27 +02:00
I2C: OMAP: remove unused function pointers from pdata
2011-10-29 09:37:09 +01:00
i2c: Delete ANY_I2C_BUS
2011-11-23 11:33:07 +01:00
vlan: allow nested vlan_do_receive()
2011-10-30 04:43:30 -04:00
net-netlink: Add a new attribute to expose TCLASS values via netlink
2011-11-14 01:08:49 -05:00
writeback: remove vm_dirties and task->dirties
2011-11-17 20:49:06 +08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2011-10-28 14:25:01 -07:00
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-10-26 16:17:32 +02:00
Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
2011-10-28 05:54:23 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
irq: don't put module.h into irq.h for tracking irqgen modules.
2011-10-31 19:32:35 -04:00
irq: don't put module.h into irq.h for tracking irqgen modules.
2011-10-31 19:32:35 -04:00
irq: support domains with non-zero hwirq base
2011-10-31 14:03:23 +01:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree
2011-11-07 07:54:42 +10:30
Merge branch 'akpm' (Andrew's incoming)
2011-10-31 17:46:07 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Revert "KVM: PPC: Add support for explicit HIOR setting"
2011-11-17 16:30:25 +02:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
lis3lv02d: make regulator API usage unconditional
2011-10-31 17:30:52 -07:00
llist-return-whether-list-is-empty-before-adding-in-llist_add-fix
2011-10-31 17:30:57 -07:00
Merge branch 'for-3.2/drivers' of git://git.kernel.dk/linux-block
2011-11-04 17:22:14 -07:00
minix: describe usage of different magic numbers
2011-11-02 16:06:59 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
memblock: add memblock_start_of_DRAM()
2011-10-31 17:30:47 -07:00
memcg: skip scanning active lists based on individual size
2011-11-02 16:07:00 -07:00
miscdevice.h: fix up implicit use of lists and types
2011-10-31 19:32:29 -04:00
thp: share get_huge_page_tail()
2011-11-02 16:06:58 -07:00
mm: thp: tail page refcounting fix
2011-11-02 16:06:57 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
mm: vmscan: immediately reclaim end-of-LRU dirty pages when writeback completes
2011-10-31 17:30:47 -07:00
module.h: relocate MODULE_PARM_DESC into moduleparam.h
2011-10-31 09:20:11 -04:00
module.h: relocate MODULE_PARM_DESC into moduleparam.h
2011-10-31 09:20:11 -04:00
readlinkat: ensure we return ENOENT for the empty pathname for normal lookups
2011-11-02 12:53:42 +01:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Merge git://github.com/herbertx/crypto
2011-11-01 09:24:41 -07:00
nfs: when attempting to open a directory, fall back on normal lookup (try #5 )
2011-11-04 16:39:04 -04:00
nfs: when attempting to open a directory, fall back on normal lookup (try #5 )
2011-11-04 16:39:04 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
of/irq: introduce of_irq_init
2011-10-31 14:03:22 +01:00
of_platform.h: delete needless include <linux/module.h>
2011-10-31 19:32:27 -04:00
oom: fix race while temporarily setting current's oom_score_adj
2011-10-31 17:30:45 -07:00
PM / OPP: Fix build when CONFIG_PM_OPP is not set
2011-11-04 22:28:13 +01:00
PCI: Fix compile errors with PCI_ATS and !PCI_IOV
2011-10-31 10:23:57 -07:00
PCI: Fix compile errors with PCI_ATS and !PCI_IOV
2011-10-31 10:23:57 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
[libata] ahci: Add ASMedia ASM1061 support
2011-11-09 01:47:36 -05:00
Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6
2011-10-29 07:28:36 -07:00
PM Sleep: Do not extend wakeup paths to devices with ignore_children set
2011-11-17 21:39:33 +01:00
PM Sleep: Do not extend wakeup paths to devices with ignore_children set
2011-11-17 21:39:33 +01:00
pps: new client driver using GPIO
2011-11-02 16:07:02 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Merge branch 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-10-28 05:29:07 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
RapidIO: add mport driver for Tsi721 bridge
2011-11-02 16:07:01 -07:00
writeback: remove vm_dirties and task->dirties
2011-11-17 20:49:06 +08:00
include/linux/sem.h: make sysv_sem empty if SYSVIPC is disabled
2011-11-02 16:07:01 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
RS485: fix inconsistencies in the meaning of some variables
2011-11-15 12:13:44 -08:00
serial: add irq handler for Freescale 16550 errata.
2011-12-09 19:14:13 -08:00
serial/8250_pci: setup-quirk workaround for the kt serial controller
2011-11-26 20:11:20 -08:00
Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus
2011-11-11 16:16:25 +09:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
sh: clkfwk: Kill off remaining debugfs cruft.
2011-11-11 16:11:41 +09:00
ARM: mach-shmobile: move helper macro PORTCR to sh_pfc.h
2011-11-11 16:45:35 +09:00
vmscan: fix shrinker callback bug in fs/super.c
2011-10-31 17:30:49 -07:00
include: linux: skbuf.h: Fix parameter documentation
2011-11-01 00:55:48 -04:00
stop_machine.h: fix implicit use of smp.h for smp_processor_id
2011-10-31 19:32:28 -04:00
lib/string.c: introduce memchr_inv()
2011-10-31 17:30:47 -07:00
mm: change isolate mode from #define to bitwise type
2011-10-31 17:30:44 -07:00
Cross Memory Attach
2011-10-31 17:30:44 -07:00
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
sysdev.h: dont include <linux/module.h> for no reason
2011-10-31 19:32:24 -04:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
2011-10-31 19:32:31 -04:00
vermagic: delete unused include of <linux/module.h>
2011-10-31 19:32:23 -04:00
[media] v4l: Add AUTO option for the V4L2_CID_POWER_LINE_FREQUENCY control
2011-11-03 18:29:09 -02:00
virtio.h: correct comment for struct virtio_driver
2011-11-02 11:40:59 +10:30
virtio-pci: make reset operation safer
2011-11-24 13:04:48 +10:30
virtio-mmio: Correct the name of the guest features selector
2011-11-24 13:04:47 +10:30
virtio: modify vring_init and vring_size to take account of the layout containing *_event_idx
2011-11-02 11:40:59 +10:30
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
xen: map foreign pages for shared rings by updating the PTEs directly
2011-11-16 12:13:08 -05:00
writeback: Add a 'reason' to wb_writeback_work
2011-10-31 00:33:36 +08:00
