Commit graph

134,929 commits

Author SHA1 Message Date
stephen hemminger
f20530bc98 enic: update to support 64 bit stats
The device driver already uses 64 bit statistics, it just
doesn't use the 64 bit interface.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 23:26:32 -07:00
stephen hemminger
47fd428cd0 netxen: convert to 64 bit statistics
Change to 64 bit statistics interface, driver was already maintaining 64 bit
value.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 23:26:32 -07:00
stephen hemminger
6311cc44a2 veth: convert to 64 bit statistics
Not much change, device was already keeping per cpu statistics.
Use recent 64 statistics interface.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 23:26:32 -07:00
stephen hemminger
95305f6c3b vmxnet3: convert to 64 bit stats interface
Convert vmxnet3 driver to 64 bit statistics interface.
This driver was already counting packet per queue in a 64 bit value so not
a huge change. Eliminate unused old net_device_stats structure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Scott J. Goldman <scottjg@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 23:26:32 -07:00
Jingoo Han
fab7c5b778 video: s3c-fb: move enabling channel for window
This patch moves enabling channel for window, because there should
be enabling channel before enabling window. If the sequence is
reversed, it makes the problem in displaying images to lcd panel.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-09 14:59:56 +09:00
Jingoo Han
13e6af8886 video: s3c-fb: fix virtual resolution checking
This patch fixes mishandling in virtual resolution checking.
Previously, virtual resolution is changed to virtual_x and virtual_y
which mean the size for buffer allocation, when s3c_fb_check_var is
called by fb_check_var. However, it is meaningless, since virtual_x
and virtual_y are fixed and user cannot change virtual resolution.
Therefore, virtual resolution should be more than resolution
such as xres and yres.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-09 14:59:52 +09:00
Jingoo Han
72ba4cb608 video: s3c-fb: fix misleading kfree in remove function
This patch fixes misleading kfree in remove function.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-09 14:59:48 +09:00
Keith Packard
284d952968 drm/i915: Call intel_enable_plane from i9xx_crtc_mode_set (again)
This change got placed in the ironlake path instead of the 9xx path
during a recent code shuffle.

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-08 21:43:35 -07:00
Ilija Hadzic
303c805cb4 drm/radeon: fix GUI idle IH debug statements
debug statement for GUI idle interrupt is wrong and incorrectly
reports CP EOP interrupt; trivial issue, but confusing for
someone trying to distinguish interrupt sources while debugging
... fixed

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-09 14:36:48 +10:00
Alex Deucher
b20f9bef8d drm/radeon/kms: check modes against max pixel clock
Filter out modes that are higher than the max pixel
clock.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-09 14:33:19 +10:00
Sascha Hauer
618c75e491 drm: fix fbs in DRM_IOCTL_MODE_GETRESOURCES ioctl
The DRM_IOCTL_MODE_GETRESOURCES ioctl just returns bogus framebuffers.
That is because the framebuffers for each file are in the filp_head
member of struct drm_framebuffer, not in the head member.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-09 14:31:09 +10:00
Namhyung Kim
97b3d4aacf md/bitmap: remove unused fields from struct bitmap
Get rid of ->syncchunk and ->counter_bits since they're never used.

Also discard COUNTER_BYTE_RATIO which is unused.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:43:01 +10:00
Namhyung Kim
27d5ea04d0 md/bitmap: use proper accessor macro
Use COUNTER()/NEEDED() macro instead of open-coding them.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:42:57 +10:00
Namhyung Kim
01393f3d58 md: check ->hot_remove_disk when removing disk
Check pers->hot_remove_disk instead of pers->hot_add_disk in slot_store()
during disk removal. The linear personality only has ->hot_add_disk and
no ->hot_remove_disk, so that removing disk in the array resulted to
following kernel bug:

$ sudo mdadm --create /dev/md0 --level=linear --raid-devices=4 /dev/loop[0-3]
$ echo none | sudo tee /sys/block/md0/md/dev-loop2/slot
 BUG: unable to handle kernel NULL pointer dereference at           (null)
 IP: [<          (null)>]           (null)
 PGD c9f5d067 PUD 8575a067 PMD 0
 Oops: 0010 [#1] SMP
 CPU 2
 Modules linked in: linear loop bridge stp llc kvm_intel kvm asus_atk0110 sr_mod cdrom sg

 Pid: 10450, comm: tee Not tainted 3.0.0-rc1-leonard+ #173 System manufacturer System Product Name/P5G41TD-M PRO
 RIP: 0010:[<0000000000000000>]  [<          (null)>]           (null)
 RSP: 0018:ffff880085757df0  EFLAGS: 00010282
 RAX: ffffffffa00168e0 RBX: ffff8800d1431800 RCX: 000000000000006e
 RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffff88008543c000
 RBP: ffff880085757e48 R08: 0000000000000002 R09: 000000000000000a
 R10: 0000000000000000 R11: ffff88008543c2e0 R12: 00000000ffffffff
 R13: ffff8800b4641000 R14: 0000000000000005 R15: 0000000000000000
 FS:  00007fe8c9e05700(0000) GS:ffff88011fa00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000000000 CR3: 00000000b4502000 CR4: 00000000000406e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Process tee (pid: 10450, threadinfo ffff880085756000, task ffff8800c9f08000)
 Stack:
  ffffffff8138496a ffff8800b4641000 ffff88008543c268 0000000000000000
  ffff8800b4641000 ffff88008543c000 ffff8800d1431868 ffffffff81a78a90
  ffff8800b4641000 ffff88008543c000 ffff8800d1431800 ffff880085757e98
 Call Trace:
  [<ffffffff8138496a>] ? slot_store+0xaa/0x265
  [<ffffffff81384bae>] rdev_attr_store+0x89/0xa8
  [<ffffffff8115a96a>] sysfs_write_file+0x108/0x144
  [<ffffffff81106b87>] vfs_write+0xb1/0x10d
  [<ffffffff8106e6c0>] ? trace_hardirqs_on_caller+0x111/0x135
  [<ffffffff81106cac>] sys_write+0x4d/0x77
  [<ffffffff814fe702>] system_call_fastpath+0x16/0x1b
 Code:  Bad RIP value.
 RIP  [<          (null)>]           (null)
  RSP <ffff880085757df0>
 CR2: 0000000000000000
 ---[ end trace ba5fc64319a826fb ]---

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:42:54 +10:00
马建朋
9864c0053d md: Using poll /proc/mdstat can monitor the events of adding a spare disks
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:42:48 +10:00
Jonathan Brassow
d744540cd3 MD: use is_power_of_2 macro
Make use of is_power_of_2 macro.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:42:36 +10:00
Jonathan Brassow
d6b212f4b1 MD: raid5 do not set fullsync
Add check to determine if a device needs full resync or if partial resync will do

RAID 5 was assuming that if a device was not In_sync, it must undergo a full
resync.  We add a check to see if 'saved_raid_disk' is the same as 'raid_disk'.
If it is, we can safely skip the full resync and rely on the bitmap for
partial recovery instead.  This is the legitimate purpose of 'saved_raid_disk',
from md.h:
int saved_raid_disk;            /* role that device used to have in the
                                 * array and could again if we did a partial
                                 * resync from the bitmap
                                 */

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:42:29 +10:00
Jonathan Brassow
9c81075f43 MD: support initial bitmap creation in-kernel
Add bitmap support to the device-mapper specific metadata area.

This patch allows the creation of the bitmap metadata area upon
initial array creation via device-mapper.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-06-09 11:41:36 +10:00
stephen hemminger
8ef207d63f iph: use default get_stats
This driver keeps stats in net_device stats therefore it
does not need to define it's own get_stats hook.

Also, use standard format for net_device_ops (without &).

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 17:05:29 -07:00
Linus Torvalds
06e86849cf Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM / Runtime: Fix loops in pm_runtime_clk_notify()
  PM / Intel IOMMU: Fix init_iommu_pm_ops() for CONFIG_PM unset
2011-06-08 15:58:51 -07:00
Tomoya MORINAGA
c37f3c2749 spi/topcliff_pch: DMA support
This patch enables this SPI driver works with DMA mode.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 16:53:50 -06:00
Tomoya MORINAGA
f016aeb655 spi/topcliff_pch: support new device ML7213 IOH
Support ML7213 device of OKI SEMICONDUCTOR.
ML7213 is companion chip of Intel Atom E6xx series for IVI(In-Vehicle Infotainment).
ML7213 is compatible for Intel EG20T PCH.

v4: - Delete unrelated whitespace
    - Prevent device driver from accessing platform data
    - Add __devinit and __devexit
    - Save pdev->dev to pd_dev->dev.parent
    - Have own suspend/resume processing in platform_driver.
    - Care returned value in pch_spi_init
    - Change unregister order

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 16:53:48 -06:00
H Hartley Sweeten
1e4c88420e gpio/ep93xx: convert to platform_driver and use basic_mmio_gpio library
This converts the gpio-ep93xx driver into a platform_driver and uses
the basic_mmio_gpio library.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 16:11:57 -06:00
Mika Westerberg
626a96db11 spi/ep93xx: add DMA support
This patch adds DMA support for the EP93xx SPI driver. By default the DMA is
not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true
in board configuration file.

Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for
performance reasons.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 15:46:12 -06:00
Linus Torvalds
4c1f683a4a Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (28 commits)
  MAINTAINERS: add a maintainer to Gadget Framework
  USB: serial: add another 4N-GALAXY.DE PID to ftdi_sio driver
  Revert "USB: option: add ID for ZTE MF 330"
  drivers/usb/host/ohci-pxa27x.c: add missing clk_put
  USB: CONFIG_USB_GADGET_DUALSPEED is not user-configurable
  USB: dummy-hcd needs the has_tt flag
  usb-storage: redo incorrect reads
  usb/renesas_usbhs: free uep on removal
  usb/s3c-hsudc: fix error path
  usb/pxa25x_udc: cleanup the LUBBOCK err path
  usb/mv_udc_core: fix compile
  usb: gadget: include <linux/prefetch.h> to fix compiling error
  USB: s3c-hsotg: Tone down debugging
  usb: remove bad dput after dentry_unhash
  USB: core: Tolerate protocol stall during hub and port status read
  musb: fix prefetch build failure
  USB: cdc-acm: Adding second ACM channel support for Nokia E7 and C7
  usb-gadget: unlock data->lock mutex on error path in ep_write()
  USB: option Add blacklist for ZTE K3765-Z (19d2:2002)
  option: add Prolink PH300 modem IDs
  ...
2011-06-08 14:27:48 -07:00
Mika Westerberg
760ee1c4aa dmaengine: add ep93xx DMA support
The ep93xx DMA controller has 10 independent memory to peripheral (M2P)
channels, and 2 dedicated memory to memory (M2M) channels. M2M channels can
also be used by SPI and IDE to perform DMA transfers to/from their memory
mapped FIFOs.

This driver supports both M2P and M2M channels with DMA_SLAVE, DMA_CYCLIC and
DMA_MEMCPY (M2M only) capabilities.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 15:10:44 -06:00
Linus Torvalds
365a13a582 Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6
* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6:
  spi/rtc-m41t93: Use spi_get_drvdata() for SPI devices
  spi/omap2: fix uninitialized variable
2011-06-08 13:54:46 -07:00
Greg Kroah-Hartman
7e24cf43f7 Merge 3.0-rc2 + Linus's latest into usb-linus
This is needed to get the following MAINTAINERS patch to apply properly.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-08 13:50:35 -07:00
Steffen Sledz
a26d31cef0 USB: serial: add another 4N-GALAXY.DE PID to ftdi_sio driver
E.g. newer CAN 2.0 A/B <=> USB 2.0 converters report idProduct=f3c2.

Signed-off-by: Steffen Sledz <sledz@dresearch-fe.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-08 13:48:30 -07:00
Grant Likely
b6336ca298 Merge remote-tracking branch 'origin' into spi/merge 2011-06-08 14:37:22 -06:00
Geert Uytterhoeven
a80fd9db0e spi/rtc-m41t93: Use spi_get_drvdata() for SPI devices
One new offender detected by the recently increased type checking in
platform_get_drvdata():

drivers/rtc/rtc-m41t93.c: In function ‘m41t93_remove’:
drivers/rtc/rtc-m41t93.c:192: warning: passing argument 1 of ‘platform_get_drvdata’ from incompatible pointer type

Use spi_get_drvdata() instead of platform_get_drvdata(), cfr. commit
42fea15d6d ("spi/rtc-{ds1390,ds3234,m41t94}:
Use spi_get_drvdata() for SPI devices")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 14:33:48 -06:00
Mark Brown
c08957a2cf regulator: Properly register dummy regulator driver
Recent changes in the driver core appear to mean that the data structures
for the driver core are not fully initialised unless the driver is bound.
Make sure the driver core knows the dummy driver is in use by binding it
to a driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-06-08 20:15:34 +01:00
Linus Torvalds
467701e286 Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: off by one errors in multicalls.c
  xen: use the trigger info we already have to choose the irq handler
2011-06-08 12:03:37 -07:00
Stanislaw Gruszka
51e6525714 iwlegacy: fix channel switch locking
We use priv->mutex to avoid race conditions between chswitch_done()
and mac_channel_switch(), when marking channel switch in
progress. But chswitch_done() can be called in atomic context
from rx_csa() or with mutex already taken from commit_rxon().

To fix remove mutex from chswitch_done() and use atomic bitops
for marking channel switch pending.

Cc: stable@kernel.org # 2.6.39+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-08 14:19:05 -04:00
Wey-Yi Guy
43e4e0b949 iwlagn: send tx power command if defer cause by RXON not match
During channge channel, tx power will not send to uCode, the tx power command
should send after scan complete. but should also can send after RXON command.

Stable fix identified by Stanislaw Gruszka <sgruszka@redhat.com>.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Cc: stable@kernel.org [2.6.38+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-08 14:17:27 -04:00
John W. Linville
c0c33addcb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-06-08 13:44:21 -04:00
David Jander
6dd599f8af gpio/pca953x: Fix warning of enabled interrupts in handler
When using nested threaded irqs, use handle_nested_irq(). This function
does not call the chip handler, so no handler is set.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 11:37:45 -06:00
David Jander
17e8b42c17 gpio/pca953x: Interrupt pin is active-low
The interrupt pin of the PCA953x is active low, and on the rising edge
no interrupt should be produced.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 11:34:41 -06:00
David Jander
910c8fb6b4 gpio/pca953x: Fix IRQ support.
It seems that in the normal case, IRQ_NOREQUEST needs to be explicitly
cleared, otherwise claiming the interrupt fails.
In the case of sparse interrupts, the descriptor needs to be allocated
first.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08 11:34:37 -06:00
Greg Kroah-Hartman
e2d4dc5af3 Staging: cx23885: fix include of altera.h
The cx23885 driver was including staging/altera.h, but that file has
moved back into the driver directory.

Why a non-staging driver was including a staging driver is beyond me,
but this fixes the build so everything is happy for now.

For the record, it's not ok for a non-staging driver to depend on a
staging one, as that implies that the non-staging one should also be in
the staging tree if that's needed.

Cc: Igor M. Liplianin <liplianin@netup.ru>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-08 09:18:32 -07:00
Linus Torvalds
5b28f6a25e Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6:
  gpio/samsung: make Kconfig options def_bool
  gpio/exynos4: Fix incorrect mapping of gpio pull-up macro to register setting
  GPIO: OMAP: add locking around calls to _set_gpio_triggering
  GPIO: OMAP: fix setting IRQWAKEN bits for OMAP4
  GPIO: OMAP: fix section mismatch warnings
  gpio: Fix gpio-exynos4 build fails in mainline
2011-06-08 08:22:29 -07:00
Linus Torvalds
46671b0355 Merge branch 'v4l_for_linus' of 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] soc_camera: preserve const attribute
  [media] uvc_entity: initialize return value
  [media] media: Fix media device minor registration
  [media] Make nchg variable signed because the code compares this variable against negative values
  [media] omap3isp: fix compiler warning
  [media] v4l: Fix media_entity_to_video_device macro argument name
  [media] ivtv: Internally separate encoder & decoder standard setting
  [media] ivtvfb: Add sanity check to ivtvfb_pan_display()
  [media] ivtvfb: use display information in info not in var for panning
  [media] ivtv: Make two ivtv_msleep_timeout calls uninterruptable
  [media] anysee: return EOPNOTSUPP for unsupported I2C messages
  [media] gspca - ov519: Set the default frame rate to 15 fps
  [media] gspca - stv06xx: Set a lower default value of gain for hdcs sensors
  [media] gspca: Remove coarse_expo_autogain.h
  [media] gspca - ov519: Change the ovfx2 bulk transfer size
  [media] gspca - ov519: Fix a regression for ovfx2 webcams
2011-06-08 08:21:48 -07:00
Linus Torvalds
18367c0ec7 Merge branch 'drm-radeon-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-radeon-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: disable hdmi audio by default
  drm/radeon/kms: fix for radeon on systems >4GB without hardware iommu
  drm/radeon/kms: set family for use in parser.
2011-06-08 08:19:14 -07:00
Grant Likely
c226feb013 Merge branch 'for_3.0/gpio-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/merge 2011-06-08 09:12:16 -06:00
Linus Torvalds
81de916f19 tty_buffer: get rid of 'seen_tail' logic in flush_to_ldisc
The flush_to_ldisc() work entry has special logic to notice when it has
seen the original tail of the data queue, and it avoids continuing the
flush if it sees that _original_ tail rather than the current tail.

This logic can trigger in case somebody is constantly adding new data to
the tty while the flushing is active - and the intent is to avoid
excessive CPU usage while flushing the tty, especially as we used to do
this from a softirq context which made it non-preemptible.

However, since we no longer re-arm the work-queue from within itself
(because that causes other trouble: see commit a5660b41af "tty: fix
endless work loop when the buffer fills up"), this just leads to
possible hung tty's (most easily seen in SMP and with a test-program
that floods a pty with data - nobody seems to have reported this for any
real-life situation yet).

And since the workqueue isn't done from timers and softirq's any more,
it's doubtful whether the CPU useage issue is really relevant any more.
So just remove the logic entirely, and see if anybody ever notices.

Alternatively, we might want to re-introduce the "re-arm the work" for
just this case, but then we'd have to re-introduce the delayed work
model or some explicit timer, which really doesn't seem worth it for
this.

Reported-and-tested-by: Guillaume Chazarain <guichaz@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-08 07:46:30 -07:00
Alex Deucher
805c22168d drm/radeon/kms: disable hdmi audio by default
The current RE'd code causes blank screens and
display problems on a lot of systems.  So disable
it by default for now.  It can still be enabled
by setting the audio parameter to 1.  E.g.:
radeon.audio=1

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=38010
https://bugs.freedesktop.org/show_bug.cgi?id=27731
https://bugs.freedesktop.org/show_bug.cgi?id=35970
https://bugs.freedesktop.org/show_bug.cgi?id=26195
and many other reported problems.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-08 20:14:41 +10:00
Daniel Haid
62fff811d7 drm/radeon/kms: fix for radeon on systems >4GB without hardware iommu
On my x86_64 system with >4GB of ram and swiotlb instead of
a hardware iommu (because I have a VIA chipset), the call
to pci_set_dma_mask (see below) with 40bits returns an error.

But it seems that the radeon driver is designed to have
need_dma32 = true exactly if pci_set_dma_mask is called
with 32 bits and false if it is called with 40 bits.

I have read somewhere that the default are 32 bits. So if the
call fails I suppose that need_dma32 should be set to true.

And indeed the patch fixes the problem I have had before
and which I had described here:
http://choon.net/forum/read.php?21,106131,115940

Acked-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-08 20:14:28 +10:00
Paul Mundt
e13198894b serial: sh-sci: More unused define purging.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-08 19:13:06 +09:00
Dave Airlie
428c6e3630 drm/radeon/kms: set family for use in parser.
Wierdly the kms parser never initialised the family, it wasn't really used
much, but the fmt checker patch started using it and it fell over.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-08 20:08:46 +10:00
Paul Mundt
514820eb98 serial: sh-sci: Consolidate RXD pin handling.
Non-SCI parts do not have the special port reg necessary for cases where
the RX and SCI pins are muxed and need to be manually polled, so these
like always fall back on the normal FIFO processing paths. SH7760 is in a
class in and of itself with regards to mapping its SIM card interface via
the SCI port class despite not having any of the RXD lines wired up and
so implicitly behaving more like a SCIF in this regard. Out of the other
CPUs, some support the port check via the same block while others do it
through an external SuperI/O, so it's not even possible to perform the
check relative to the ioremapped cookie offset, so the separate read
semantics are preserved here, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-08 18:51:32 +09:00