| Commit message (Collapse) | Author | Age | Files | Lines |
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This supported all DMA channels, and it was tested in SH7722,
SH7780, SH7785 and SH7763.
This can not use with SH DMA API.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Reviewed-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Conflicts:
drivers/md/raid5.c
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Recent commit c8c00a6915a2e3d10416e8bdd3138429beb96210
changed the exit paths in do_md_stop and was not quite
careful enough. There is one path were 'err' now needs
to be cleared but it isn't.
So setting an array to readonly (with mdadm --readonly) will
work, but will incorrectly report and error: ENXIO.
Signed-off-by: NeilBrown <neilb@suse.de>
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Normally we only allow the upper limit for a reshape to be decreased
when the array not performing a sync/recovery/reshape, otherwise there
could be races. But if an array is part-way through a reshape when it
is assembled the reshape is started immediately leaving no window
to set an upper bound.
If the array is started read-only, the reshape will be suspended until
the array becomes writable, so that provides a window during which it
is perfectly safe to reduce the upper limit of a reshape.
So: allow the upper limit (sync_max) to be reduced even if the reshape
thread is running, as long as the array is still read-only.
Signed-off-by: NeilBrown <neilb@suse.de>
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We were removing the drives, from the array, but not
removing symlinks from /sys/.... and not marking the device
as having been removed.
Signed-off-by: NeilBrown <neilb@suse.de>
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This "if" don't allow for the possibility that the number of devices
doesn't change, and so sector_nr isn't set correctly in that case.
So change '>' to '>='.
Signed-off-by: NeilBrown <neilb@suse.de>
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md/raid5 doesn't allow a reshape to restart if it involves writing
over the same part of disk that it would be reading from.
This happens at the beginning of a reshape that increases the number
of devices, at the end of a reshape that decreases the number of
devices, and continuously for a reshape that does not change the
number of devices.
The current code is correct for the "increase number of devices"
case as the critical section at the start is handled by userspace
performing a backup.
It does not work for reducing the number of devices, or the
no-change case.
For 'reducing', we need to invert the test. For no-change we cannot
really be sure things will be safe, so simply require the array
to be read-only, which is how the user-space code which carefully
starts such arrays works.
Signed-off-by: NeilBrown <neilb@suse.de>
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When assembling arrays, md allows two devices to have different event
counts as long as the difference is only '1'. This is to cope with
a system failure between updating the metadata on two difference
devices.
However there are currently times when we update the event count by
2. This was done to keep the event count even when the array is clean
and odd when it is dirty, which allows us to avoid writing common
update to spare devices and so allow those spares to go to sleep.
This is bad for the above reason. So change it to never increase by
two. This means that the alignment between 'odd/even' and
'clean/dirty' might take a little longer to attain, but that is only a
small cost. The spares will get a few more updates but that will
still be spared (;-) most updates and can still go to sleep.
Prior to this patch there was a small chance that after a crash an
array would fail to assemble due to the overly large event count
mismatch.
Signed-off-by: NeilBrown <neilb@suse.de>
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A recent commit:
commit 449aad3e25358812c43afc60918c5ad3819488e7
introduced the possibility of an A-B/B-A deadlock between
bd_mutex and reconfig_mutex.
__blkdev_get holds bd_mutex while calling md_open which takes
reconfig_mutex,
do_md_run is always called with reconfig_mutex held, and it now
takes bd_mutex in the call the revalidate_disk.
This potential deadlock was not caught by lockdep due to the
use of mutex_lock_interruptible_nexted which was introduced
by
commit d63a5a74dee87883fda6b7d170244acaac5b05e8
do avoid a warning of an impossible deadlock.
It is quite possible to split reconfig_mutex in to two locks.
One protects the array data structures while it is being
reconfigured, the other ensures that an array is never even partially
open while it is being deactivated.
In particular, the second lock prevents an open from completing
between the time when do_md_stop checks if there are any active opens,
and the time when the array is either set read-only, or when ->pers is
set to NULL. So we can be certain that no IO is in flight as the
array is being destroyed.
So create a new lock, open_mutex, just to ensure exclusion between
'open' and 'stop'.
This avoids the deadlock and also avoids the lockdep warning mentioned
in commit d63a5a74d
Reported-by: "Mike Snitzer" <snitzer@gmail.com>
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: fix oops on disconnect in cdc-acm
USB: storage: include Prolific Technology USB drive in unusual_devs list
USB: ftdi_sio: add product_id for Marvell OpenRD Base, Client
USB: ftdi_sio: add vendor and product id for Bayer glucose meter serial converter cable
USB: EHCI: fix counting of transaction error retries
USB: EHCI: fix two new bugs related to Clear-TT-Buffer
USB: usbfs: fix -ENOENT error code to be -ENODEV
USB: musb: fix the nop registration for OMAP3EVM
USB: devio: Properly do access_ok() checks
USB: pl2303: New vendor and product id
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This patch fixes an oops caused when during an unplug a device's table
of endpoints is zeroed before the driver is notified. A pointer to
the endpoint must be cached.
this fixes a regression caused by commit
5186ffee2320942c3dc9745f7930e0eb15329ca6
Therefore it should go into 2.6.31
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add a quirk entry for the Leading Driver UD-11 usb flash drive.
As Alan Stern told me, the device doesn't deal correctly with the
locking media feature of the device, and this patch incorporates it.
Compiled, tested, working.
Signed-off-by: Rogerio Brito <rbrito@ime.usp.br>
Cc: Phil Dibowitz <phil@ipom.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Robert Hancock <hancockrwd@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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reference:
http://www.open-rd.org
Signed-off-by: Dhaval Vasa <dhaval.vasa@einfochips.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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converter cable
Attached patch adds USB vendor and product IDs for Bayer's USB to serial
converter cable used by Bayer blood glucose meters. It seems to be a
FT232RL based device and works without any problem with ftdi_sio driver
when this patch is applied. See: http://winglucofacts.com/cables/
Signed-off-by: Marko Hänninen <bugitus@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1274) simplifies the counting of transaction-error
retries. Now we will count up from 0 to QH_XACTERR_MAX instead of
down from QH_XACTERR_MAX to 0.
The patch also fixes a small bug: qh->xacterr was not getting
initialized for interrupt endpoints.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1273) fixes two(!) bugs introduced by the new
Clear-TT-Buffer implementation in ehci-hcd.
It is now possible for an idle QH to have some URBs on its
queue -- this will happen if a Clear-TT-Buffer is pending for
the QH's endpoint. Consequently we should not issue a warning
when someone tries to unlink an URB from an idle QH; instead
we should process the request immediately.
The refcounts for QHs could get messed up, because
submit_async() would increment the refcount when calling
qh_link_async() and qh_link_async() would then refuse to link
the QH into the schedule if a Clear-TT-Buffer was pending.
Instead we should increment the refcount only when the QH
actually is added to the schedule. The current code tries to
be clever by leaving the refcount alone if an unlink is
immediately followed by a relink; the patch changes this to an
unconditional decrement and increment (although they occur in
the opposite order).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Tested-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1272) changes the error code returned when an open call
for a USB device node fails to locate the corresponding device. The
appropriate error code is -ENODEV, not -ENOENT.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Kay Sievers <kay.sievers@vrfy.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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OMAP3EVM uses ISP1504 phy which doesn't require any programming and
thus has to use NOP otg transceiver.
Cleanups being done:
- Remove unwanted code in usb-musb.c file
- Register NOP in OMAP3EVM board file using
usb_nop_xceiv_register().
- Select NOP_USB_XCEIV for OMAP3EVM boards.
- Don't enable TWL4030_USB in omap3_evm_defconfig
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Eino-Ville Talvala <talvala@stanford.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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access_ok() checks must be done on every part of the userspace structure
that is accessed. If access_ok() on one part of the struct succeeded, it
does not imply it will succeed on other parts of the struct. (Does
depend on the architecture implementation of access_ok()).
This changes the __get_user() users to first check access_ok() on the
data structure.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I am submitting a patch for the pl2303 driver. This patch adds support
for the "Sony QN-3USB" cable (vendor=0x054c, product=0x0437). This USB
cable is a so-called data cable used to connect a Sony mobile phone to a
computer. Supported models are Sony CMD-J5, J6, J7, J16, J26, J70 and
Z7.
I have used this patch with my Sony CMD-J70 for several days and I
haven't encountered any kernel/hardware issue.
From: Khanh-Dang Nguyen Thu Lam <kdntl@yahoo.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: rspiusb: Fix buffer overflow
staging: add dependencies on PCI for drivers that require it
Staging: rtl8192su: fix build error
Staging: rt2870: Revert d44ca7 Removal of kernel_thread() API
Staging: rt2870: Add USB ID for Linksys, Planex Communications, Belkin
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usb_buffer_map_sg() may return -1. This will result in a read from
pdx->PixelUrb[frameInfo][-1]
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds PCI dependencies to staging drivers that require it.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a build error when selecting the rtl8192su driver as a
module. This has been reported by me, and the opensuse kernel developer
team, and I finally tracked it down.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Staging: rt2870: Revert d44ca7 Removal of kernel_thread() API
The sanity check this patch introduced triggers on shutdown, apparently due to
threads having already exited by the time BUG_ON() is reached.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Peter Teoh <htmldeveloper@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Linksys WUSB100, Belkin F5D8053 N, Planex Communications unknown model.
Signed-off-by: Jakob Gruber <jakob.gruber@kabelnet.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: (22 commits)
drm/i915: Fix read outside array bounds in restoring the SWF10 range.
drm/i915: Use our own workqueue to avoid wedging the system along with the GPU.
drm/i915: Add support for dual-channel LVDS on 8xx.
drm/i915: Return disconnected for SDVO DVI when there's no digital EDID.
drm/i915: Choose real sdvo output according to result from detection
drm/i915: Set preferred mode for integrated TV according to TV format
drm/i915: fix 845G FIFO size & burst length
drm/i915: fix VGA detect on IGDNG
drm/i915: Add eDP support on IGDNG mobile chip
drm/i915: enable DisplayPort support on IGDNG
drm/i915: Fix channel ending action for DP aux transaction
drm/i915: fix issue in display pipe setup on IGDNG
drm/i915: disable VGA plane reliably
drm/I915: Fix offset to DVO timings in LVDS data
drm/i915: hdmi detection according by reading edid
drm/i915: correct self-refresh calculation in "everything off" case
drm/i915: handle FIFO oversubsription correctly
drm/i915: FIFO watermark calculation fixes
drm/i915: ignore lvds on AOpen Mini PC MP-915
drm/i915: Allow frame buffers up to 4096x4096 on 915/945 class hardware
...
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dev_priv->saveSWF1 is a 16 element array, but this reads up to index 22,
and restored values from the wrong registers.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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This corresponds to a fix to UMS back in 2007. Fixes fd.o bug #20115.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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The patch fixed a bug on MP965-D. When VGA is connected to a DVI-I connector,
it incorrectly shows sdvo dvi as connected.
Signed-off-by: Ma Ling <ling.ma@intel.com>
[anholt: hand-resolved against previous commit and fixed up commit message]
Signed-off-by: Eric Anholt <eric@anholt.net>
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Baed on Eric's idea in order to handle multiple sdvo encoders
we implement another approach to dynamically chose real one
encoder after detection, which is contrasted with patch -
drm/i915:Construct all possible sdvo outputs for sdvo encoder.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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In order to get best possible quality image we chose 640x480 for
NTSC, PAL and 480p, 1280x720 for 720p, 1920x1080 for 1080i/p
TV format respectively.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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I had one report of flicker due to FIFO underruns on 845G. Scott was
kind enough to test a few patches and report success with this one.
Looks like 845G measures FIFO size slightly differently than other
chips, and we were also clobbering the FIFO burst length. Fixing both
of those issues gives him a healthy machine again.
Note that we still only adjust plane A's watermark in the 830/845
case. If someone is willing to test we could support a bigger variety
of dual-head 830/845 configurations with a bit more code.
Fixes fdo bug #19304 (again).
Reported-by: Scott Hansen <scottandchrystie@comcast.net>
Tested-by: Scott Hansen <scottandchrystie@comcast.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Check FORCE_DETECT bit to be clear for the finish
of hotplug detect process. Also check possible mono
monitor which should also be marked as connected.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This adds embedded DisplayPort support on next mobile chip which
aims to replace origin LVDS port. VBT's driver feature block has
been used to determine the type of current internal panel for eDP
or LVDS.
Currently no panel fitting support for eDP and backlight control
would be added in future.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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We should use current channel 'status' bits to clear DP aux channel's
done and error bits, instead of using the channel setting bits, that
will set send/busy bit again to initiate new transaction.
This also includes also some minor cleanup.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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During pipe DPMS off, instead of busy waiting pipe off, insert
delays during wait and don't loop after enough tries which matches
spec requirement. Also try to match DPMS on path by disable FDI TX
PLL in DPMS off. Disable PF by writing PF_WIN_SZ which really trigger
the update.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This does VGA disable like DDX driver. SR01 bit 5 should be set
before VGA plane disable through control register, otherwise we
might get random crash and lockups.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Now the DVO timing in LVDS data entry is obtained by using the
following step:
a. get the entry size for every LVDS panel data
b. Get the LVDS fp entry for the preferred panel type
c. get the DVO timing by using entry->dvo_timing
In our driver the entry->dvo_timing is related with the size of
lvds_fp_timing. For example: the size is 46.
But it seems that the size of lvds_fp_timing varies on the differnt
platform. In such case we will get the incorrect DVO timing entry
because of the incorrect DVO offset in LVDS panel data entry.
This also removes a hack on new IGDNG to get proper DVO timing.
Calculate the DVO timing offset in LVDS data entry to get the DVO timing
a. get the DVO timing offset in the LVDS fp data entry by using the
pointer definition in LVDS data ptr
b. get the LVDS data entry
c. get the DVO timing by adding the DVO timing offset to data entry
https://bugs.freedesktop.org/show_bug.cgi?id=22787
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Tested-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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According to investigations from windows team ,hw team,
and our test results on all 4x platofrms available
(gm45, g45b, q45, g45a, g45c, g41a, and g41), we find
currently Hot plug live status and Hot plug interrupt
detection are not reliable, sometime the results from
the two approaches are contradicts. So we chose edid
detection for hdmi output.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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If no planes are enabled, the self-refresh calculation may end up doing
a divide by zero. This patch should prevent that by making sure at
least one of the CRTCs had a valid hdisplay value.
Reported-by: Eric Anholt <eric@anholt.net>
Tested-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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If you're pushing a plane hard (i.e. you need most or all of the FIFO
entries just to cover your frame refresh latency), the watermark level
may end up being negative. So fix up the signed vs. unsigned math in
the calculation function to handle this correctly, giving all available
FIFO entries to such a configuration.
Reported-by: Eric Anholt <eric@anholt.net>
Tested-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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I discovered several bugs in the FIFO code that was recently applied.
Some of them fell into the "how did this ever work" category, since in
some cases we were using the wrong FIFO size values, and the
calculations ended up being way off.
This patch fixes all the bugs I found, and works well on my GM45, 915GM
and 855GM test machines; but as usual with these sorts of patches
broader testing is definitely requested (in particular this patch
affects 830, 845 and 865 for which I don't have test hardware).
Overall, the patch clarifies the watermark calculation function by
adding some comments and debug info, and making the variable names a
bit clearer. The "get FIFO size" portion of the code has also been
corrected, so we should be able to properly detect the FIFO allocations
for each pipe, for use in the watermark calculation.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This motherboard thinks it has an LVDS connected, so without this
patch the screen goes blank on the connected VGA monitor. More
information (for the non-KMS case) in fd.o bug #18004.
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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The 915 and 945 scanout engines can handle frame buffers up to 4096 pixels
wide. Pre-9xx hardware has an 8192 byte stride limit, and so we leave the
existing 2048 max in place.
I'm not sure why we limit the height to the same value; there's no intrinsic
hardware limit in the scanout engine.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This patch refactors the existing error detection and collection code,
placing most of it in i915_handle_error(). Additionally, we introduce a
work queue for scheduling post-crash tasks such as generating a uevent.
Using the uevent facility, userspace should be able to capture a
post-mortem dump for diagnostics.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Vbios will set lvds register correctly based on
current algorithm for lingle/dual Channel LVDS when
system boot, so we can accept this configuration
directly, regardless of LVDS enable status.
It fixed freedesktop.org bug #22262
Signed-off-by: Florian Mickler <florian@mickler.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: fix balancing oops when invalidate_inode_pages2 returns EBUSY
Btrfs: correct error-handling zlib error handling
Btrfs: remove superfluous NULL pointer check in btrfs_rename()
Btrfs: make sure the async caching thread advances the key
Btrfs: fix btrfs_remove_from_free_space corner case
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