summaryrefslogtreecommitdiffstats
path: root/drivers
AgeCommit message (Collapse)Author
2011-02-25Merge branch 'usb-linus' of ↵Linus Torvalds
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: usb: musb: core: set has_tt flag USB: xhci: mark local functions as static USB: xhci: fix couple sparse annotations USB: xhci: rework xhci_print_ir_set() to get ir set from xhci itself USB: Reset USB 3.0 devices on (re)discovery xhci: Fix an error in count_sg_trbs_needed() xhci: Fix errors in the running total calculations in the TRB math xhci: Clarify some expressions in the TRB math xhci: Avoid BUG() in interrupt context
2011-02-25Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: md: Fix - again - partition detection when array becomes active Fix over-zealous flush_disk when changing device size. md: avoid spinlock problem in blk_throtl_exit md: correctly handle probe of an 'mdp' device. md: don't set_capacity before array is active. md: Fix raid1->raid0 takeover
2011-02-24Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/i915: Fix unintended recursion in ironlake_disable_rc6 drm/i915: fix corruptions on i8xx due to relaxed fencing drm/i915: skip FDI & PCH enabling for DP_A agp/intel: Experiment with a 855GM GWB bit drm/i915: don't enable FDI & transcoder interrupts after all drm/i915: Ignore a hung GPU when flushing the framebuffer prior to a switch
2011-02-25Merge branch 'drm-intel-fixes' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel into drm-fixes * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: Fix unintended recursion in ironlake_disable_rc6
2011-02-24usb: musb: core: set has_tt flagFelipe Balbi
MUSB is a non-standard host implementation which can handle all speeds with the same core. We need to set has_tt flag after commit d199c96d41d80a567493e12b8e96ea056a1350c1 (USB: prevent buggy hubs from crashing the USB stack) in order for MUSB HCD to continue working. Signed-off-by: Felipe Balbi <balbi@ti.com> Cc: stable <stable@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Tested-by: Michael Jones <michael.jones@matrix-vision.de> Tested-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-24drm/i915: Fix unintended recursion in ironlake_disable_rc6Chris Wilson
After disabling, we're meant to teardown the bo used for the contexts, not recurse into ourselves again and preventing module unload. Reported-and-tested-by: Ben Widawsky <bwidawsk@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-24md: Fix - again - partition detection when array becomes activeNeilBrown
Revert b821eaa572fd737faaf6928ba046e571526c36c6 and f3b99be19ded511a1bf05a148276239d9f13eefa When I wrote the first of these I had a wrong idea about the lifetime of 'struct block_device'. It can disappear at any time that the block device is not open if it falls out of the inode cache. So relying on the 'size' recorded with it to detect when the device size has changed and so we need to revalidate, is wrong. Rather, we really do need the 'changed' attribute stored directly in the mddev and set/tested as appropriate. Without this patch, a sequence of: mknod / open / close / unlink (which can cause a block_device to be created and then destroyed) will result in a rescan of the partition table and consequence removal and addition of partitions. Several of these in a row can get udev racing to create and unlink and other code can get confused. With the patch, the rescan is only performed when needed and so there are no races. This is suitable for any stable kernel from 2.6.35. Reported-by: "Wojcik, Krzysztof" <krzysztof.wojcik@intel.com> Signed-off-by: NeilBrown <neilb@suse.de> Cc: stable@kernel.org
2011-02-24Fix over-zealous flush_disk when changing device size.NeilBrown
There are two cases when we call flush_disk. In one, the device has disappeared (check_disk_change) so any data will hold becomes irrelevant. In the oter, the device has changed size (check_disk_size_change) so data we hold may be irrelevant. In both cases it makes sense to discard any 'clean' buffers, so they will be read back from the device if needed. In the former case it makes sense to discard 'dirty' buffers as there will never be anywhere safe to write the data. In the second case it *does*not* make sense to discard dirty buffers as that will lead to file system corruption when you simply enlarge the containing devices. flush_disk calls __invalidate_devices. __invalidate_device calls both invalidate_inodes and invalidate_bdev. invalidate_inodes *does* discard I_DIRTY inodes and this does lead to fs corruption. invalidate_bev *does*not* discard dirty pages, but I don't really care about that at present. So this patch adds a flag to __invalidate_device (calling it __invalidate_device2) to indicate whether dirty buffers should be killed, and this is passed to invalidate_inodes which can choose to skip dirty inodes. flusk_disk then passes true from check_disk_change and false from check_disk_size_change. dm avoids tripping over this problem by calling i_size_write directly rathher than using check_disk_size_change. md does use check_disk_size_change and so is affected. This regression was introduced by commit 608aeef17a which causes check_disk_size_change to call flush_disk, so it is suitable for any kernel since 2.6.27. Cc: stable@kernel.org Acked-by: Jeff Moyer <jmoyer@redhat.com> Cc: Andrew Patterson <andrew.patterson@hp.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NeilBrown <neilb@suse.de>
2011-02-23Revert "Bluetooth: Enable USB autosuspend by default on btusb"Linus Torvalds
This reverts commit 556ea928f78a390fe16ae584e6433dff304d3014. Jeff Chua reports that it can cause some bluetooth devices (he mentions an Bluetooth Intermec scanner) to just stop responding after a while with messages like [ 4533.361959] btusb 8-1:1.0: no reset_resume for driver btusb? [ 4533.361964] btusb 8-1:1.1: no reset_resume for driver btusb? from the kernel. See also https://bugzilla.kernel.org/show_bug.cgi?id=26182 for other reports. Reported-by: Jeff Chua <jeff.chua.linux@gmail.com> Reported-by: Andrew Meakovski <meako@bigmir.net> Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu> Acked-by: Greg KH <gregkh@suse.de> Acked-by: Matthew Garrett <mjg@redhat.com> Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> Cc: stable@kernel.org (for 2.6.37) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-24Merge branch 'drm-intel-fixes' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel into drm-fixes * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: fix corruptions on i8xx due to relaxed fencing drm/i915: skip FDI & PCH enabling for DP_A agp/intel: Experiment with a 855GM GWB bit drm/i915: don't enable FDI & transcoder interrupts after all drm/i915: Ignore a hung GPU when flushing the framebuffer prior to a switch
2011-02-24drm/i915: fix corruptions on i8xx due to relaxed fencingDaniel Vetter
It looks like gen2 has a peculiar interleaved 2-row inter-tile layout. Probably inherited from i81x which had 2kb tiles (which naturally fit an even-number-of-tile-rows scheme to fit onto 4kb pages). There is no other mention of this in any docs (also not in the Intel internal documention according to Chris Wilson). Problem manifests itself in corruptions in the second half of the last tile row (if the bo has an odd number of tiles). Which can only happen with relaxed tiling (introduced in a00b10c360b35d6431a9). So reject set_tiling calls that don't satisfy this constrain to prevent broken userspace from causing havoc. While at it, also check the size for newer chipsets. LKML: https://lkml.org/lkml/2011/2/19/5 Reported-by: Indan Zupancic <indan@nul.nu> Tested-by: Indan Zupancic <indan@nul.nu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits) Added support for usb ethernet (0x0fe6, 0x9700) r8169: fix RTL8168DP power off issue. r8169: correct settings of rtl8102e. r8169: fix incorrect args to oob notify. DM9000B: Fix PHY power for network down/up DM9000B: Fix reg_save after spin_lock in dm9000_timeout net_sched: long word align struct qdisc_skb_cb data sfc: lower stack usage in efx_ethtool_self_test bridge: Use IPv6 link-local address for multicast listener queries bridge: Fix MLD queries' ethernet source address bridge: Allow mcast snooping for transient link local addresses too ipv6: Add IPv6 multicast address flag defines bridge: Add missing ntohs()s for MLDv2 report parsing bridge: Fix IPv6 multicast snooping by correcting offset in MLDv2 report bridge: Fix IPv6 multicast snooping by storing correct protocol type p54pci: update receive dma buffers before and after processing fix cfg80211_wext_siwfreq lock ordering... rt2x00: Fix WPA TKIP Michael MIC failures. ath5k: Fix fast channel switching tcp: undo_retrans counter fixes ...
2011-02-23Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: amd64-agp: fix crash at second module load drm/radeon: fix regression with AA resolve checking drm: drop commented out code and preceding comment drm/vblank: Enable precise vblank timestamps for interlaced and doublescan modes. drm/vblank: Use memory barriers optimized for atomic_t instead of generics. drm/vblank: Use abs64(diff_ns) for s64 diff_ns instead of abs(diff_ns) drm/radeon/kms: align height of fb allocation. Revert "drm/radeon/kms: switch back to min->max pll post divider iteration"
2011-02-23Merge branch 'r8169-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6
2011-02-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: serio/gameport - use 'long' system workqueue Input: synaptics - document 0x0c query Input: tegra-kbc - add function keymap
2011-02-23Added support for usb ethernet (0x0fe6, 0x9700)Shahar Havivi
The device is very similar to (0x0fe6, 0x8101), And works well with dm9601 driver. Signed-off-by: Shahar Havivi <shaharh@redhat.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-23r8169: fix RTL8168DP power off issue.Hayes Wang
- fix the RTL8111DP turn off the power when DASH is enabled. - RTL_GIGA_MAC_VER_27 must wait for tx finish before reset. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com>
2011-02-23r8169: correct settings of rtl8102e.Hayes Wang
Adjust and remove certain settings of RTL8102E which are for previous chips. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Acked-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-02-23r8169: fix incorrect args to oob notify.Hayes Wang
It results in the wrong point address and influences RTL8168DP. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com>
2011-02-23DM9000B: Fix PHY power for network down/upHenry Nestler
DM9000 revision B needs 1 ms delay after PHY power-on. PHY must be powered on by writing 0 into register DM9000_GPR before all other settings will change (see Davicom spec and example code). Remember, that register DM9000_GPR was not changed by reset sequence. Without this fix the FIFO is out of sync and sends wrong data after sequence of "ifconfig ethX down ; ifconfig ethX up". Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-23DM9000B: Fix reg_save after spin_lock in dm9000_timeoutHenry Nestler
The spin_lock should hold before reading register. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-23Input: serio/gameport - use 'long' system workqueueDmitry Torokhov
Commit 8ee294cd9def0004887da7f44b80563493b0a097 converted serio subsystem event handling from using a dedicated thread to using common workqueue. Unfortunately, this regressed our boot times, due to the fact that serio jobs take long time to execute. While the new concurrency managed workqueue code manages long-playing works just fine and schedules additional workers as needed, such works wreck havoc among remaining users of flush_scheduled_work(). To solve this problem let's move serio/gameport works from system_wq to system_long_wq which nobody tries to flush. Reported-and-tested-by: Hernando Torque <pantherchen@versanet.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-23Input: synaptics - document 0x0c queryDmitry Torokhov
Since Synaptics technical writers department is a bit slow releasing updated Synaptics interface guide, let's add some new bits (with their blessing) to the code so that they don't get lost. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-23amd64-agp: fix crash at second module loadFlorian Mickler
The module forgot to sometimes unregister some resources. This fixes Bug #22882. [Patch updated to 2.6.38-rc3 by Randy Dunlap.] Tested-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Florian Mickler <florian@mickler.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-22Merge branch 'for-2639-rc4/i2c-fixes' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-2639-rc4/i2c-fixes' of git://git.fluff.org/bjdooks/linux: i2c-omap: fixup commit cb527ede1bf6ff2008a025606f25344b8ed7b4ac whitespace i2c-omap: Double clear of ARDY status in IRQ handler i2c-omap: fix build for !CONFIG_SUSPEND i2c-omap: fix static suspend vs. runtime suspend i2c-stu300: make sure adapter-name is terminated
2011-02-22USB: xhci: mark local functions as staticDmitry Torokhov
Functions that are not used outsde of the module they are defined should be marked as static. Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2011-02-22Merge branch 'usb-linus' of ↵Linus Torvalds
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: Revert "USB: Reset USB 3.0 devices on (re)discovery" USB: musb: omap2430: fix kernel panic on reboot sierra: add new ID for Airprime/Sierra USB IP modem USB: serial/usb_wwan, fix tty NULL dereference USB: Reset USB 3.0 devices on (re)discovery USB: Add quirk for Samsung Android phone modem USB: Add Samsung SGH-I500/Android modem ID switch to visor driver USB: add quirks entry for Keytouch QWERTY Panel usb: musb: omap2430: fix kernel panic on reboot usb: musb: fix build breakage
2011-02-23i2c-omap: fixup commit cb527ede1bf6ff2008a025606f25344b8ed7b4ac whitespaceBen Dooks
Fixup the whitespace error noticed in cb527ede1bf6ff2008a025606f25344b8ed7b4ac Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-02-23i2c-omap: Double clear of ARDY status in IRQ handlerRichard woodruff
This errata occurs when the ARDY interrupt generation is enabled. At the begining of every new transaction the ARDY interrupt is cleared. On continuous i2c transactions where after clearing the ARDY bit from I2C_STAT register (clearing the interrupt), the IRQ line is reasserted and the I2C_STAT[ARDY] bit set again on 1. In fact, the ARDY status bit is not cleared at the write access to I2C_STAT[ARDY] and only the IRQ line is deasserted and then reasserted. This is not captured in the usual errata documents. The workaround is to have a double clear of ARDY status in irq handler. Signed-off-by: Richard woodruff <r-woodruff2@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-02-23i2c-omap: fix build for !CONFIG_SUSPENDBalaji T K
fix the build break when !CONFIG_SUSPEND drivers/i2c/busses/i2c-omap.c:1173: error: lvalue required as unary '&' operand make[3]: *** [drivers/i2c/busses/i2c-omap.o] Error 1 make[2]: *** [drivers/i2c/busses] Error 2 make[1]: *** [drivers/i2c] Error 2 make: *** [drivers] Error 2 Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-02-23drm/radeon: fix regression with AA resolve checkingDave Airlie
Some userspaces can emit a whole packet without disabling AA resolve by the looks of it, so we have to deal with them. Signed-off-by: Dave Airlie <airlied@redhat.com> Tested-by: Jorg Otte <jrg.otte@googlemail.com>
2011-02-23drm: drop commented out code and preceding commentPaul Bolle
r100_gpu_init() was dropped in 90aca4d ("drm/radeon/kms: simplify & improve GPU reset V2") but here it was only commented out. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-23drm/vblank: Enable precise vblank timestamps for interlaced and doublescan ↵Mario Kleiner
modes. Testing showed the current code can already handle doublescan video modes just fine. A trivial tweak makes it work for interlaced scanout as well. Tested and shown to be precise on Radeon rv530, r600 and Intel 945-GME. Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-23drm/vblank: Use memory barriers optimized for atomic_t instead of generics.Mario Kleiner
Documentation/atomic_ops.txt tells us that there are memory barriers optimized for atomic_inc and other atomic_t ops. Use these instead of smp_wmb(), and also to make the required memory barriers around vblank counter increments more explicit. Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-23drm/vblank: Use abs64(diff_ns) for s64 diff_ns instead of abs(diff_ns)Mario Kleiner
Use of abs() wrongly wrapped diff_ns to 32 bit, which gives a 1/4000 probability of a missed vblank increment at each vblank irq reenable if the kms driver doesn't support high precision vblank timestamping. Not a big deal in practice, but let's make it nice. Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-23drm/radeon/kms: align height of fb allocation.Dave Airlie
this aligns the height of the fb allocation so it doesn't trip over the size checks later when we use this from userspace to copy the buffer at X start. Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-23Revert "drm/radeon/kms: switch back to min->max pll post divider iteration"Alex Deucher
This reverts commit a6f9761743bf35b052180f4a8bdae4d2cc0465f6. Remove this commit as it is no longer necessary. The relevant bugs were fixed properly in: drm/radeon/kms: hopefully fix pll issues for real (v3) 5b40ddf888398ce4cccbf3b9d0a18d90149ed7ff drm/radeon/kms: add missing frac fb div flag for dce4+ 9f4283f49f0a96a64c5a45fe56f0f8c942885eef This commit also broke certain ~5 Mhz modes on old arcade monitors, so reverting this commit fixes: https://bugzilla.kernel.org/show_bug.cgi?id=29502 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-22i2c-omap: fix static suspend vs. runtime suspendKevin Hilman
When runtime PM is enabled, each OMAP i2c device is suspended after each i2c xfer. However, there are two cases when the static suspend methods must be used to ensure the devices are suspended: 1) runtime PM is disabled, either at compile time or dynamically via /sys/devices/.../power/control. 2) an i2c client driver uses i2c during it's suspend callback, thus leaving the i2c driver active (NOTE: runtime suspend transitions are disabled during system suspend, so i2c activity during system suspend will runtime resume the device, but not runtime (re)suspend it.) Since the actual work to suspend the device is handled by the subsytem, call the bus methods to take care of it. NOTE: This takes care of a known suspend problem on OMAP3 where the TWL RTC driver does i2c xfers during its suspend path leaving the i2c driver in an active state (since runtime suspend transistions are disabled.) Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-02-22i2c-stu300: make sure adapter-name is terminatedWolfram Sang
Use strlcpy instead of strncpy. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-02-22Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2011-02-22sfc: lower stack usage in efx_ethtool_self_testEric Dumazet
drivers/net/sfc/ethtool.c: In function ‘efx_ethtool_self_test’: drivers/net/sfc/ethtool.c:613: warning: the frame size of 1200 bytes is larger than 1024 bytes Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-22Merge branch 'urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 * 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: re-enable Zoomed Video support cm4000_cs: Fix undefined ops warning pcmcia vs. MECR on pxa25x/sa1111 drivers/char/pcmcia/ipwireless/main.c: Convert release_resource to release_region/release_mem_region
2011-02-22drm/i915: skip FDI & PCH enabling for DP_AJesse Barnes
eDP on the CPU doesn't need the PCH set up at all, it can in fact cause problems. So avoid FDI training and PCH PLL enabling in that case. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-22agp/intel: Experiment with a 855GM GWB bitChris Wilson
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=27187 Tested-by: Thorsten Vollmer <thorsten@thvo.de> (DFI-ACP G5M150-N w/852GME) Tested-by: Moritz Brunner <2points@gmx.org> (Asus M2400N/i855GM) Tested-by: Indan Zupancic <indan@nul.nu> (Thinkpad X40/855GM rev 02) Tested-by: Eric Anholt <eric@anholt.net> (865G) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-22drm/i915: don't enable FDI & transcoder interrupts after allJesse Barnes
We can enable some safely, but FDI and transcoder interrupts can occur and block other interrupts from being detected (like port hotplug events). So keep them disabled by default (they can be re-enabled for debugging display bringup, but should generally be off). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-22drm/i915: Ignore a hung GPU when flushing the framebuffer prior to a switchChris Wilson
If the gpu is hung, then whatever was inside the render cache is lost and there is little point waiting for it. Or complaining if we see an EIO or EAGAIN instead. So, if the GPU is indeed in its death throes when we need to rewrite the registers for a new framebuffer, just ignore the error and proceed with the update. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-21drm/i915: Do not handle backlight combination mode speciallyIndan Zupancic
The current code does not follow Intel documentation: It misses some things and does other, undocumented things. This causes wrong backlight values in certain conditions. Instead of adding tricky code handling badly documented and rare corner cases, don't handle combination mode specially at all. This way PCI_LBPC is never touched and weird things shouldn't happen. If combination mode is enabled, then the only downside is that changing the brightness has a greater granularity (the LBPC value), but LBPC is at most 254 and the maximum is in the thousands, so this is no real functional loss. A potential problem with not handling combined mode is that a brightness of max * PCI_LBPC is not bright enough. However, this is very unlikely because from the documentation LBPC seems to act as a scaling factor and doesn't look like it's supposed to be changed after boot. The value at boot should always result in a bright enough screen. IMPORTANT: However, although usually the above is true, it may not be when people ran an older (2.6.37) kernel which messed up the LBPC register, and they are unlucky enough to have a BIOS that saves and restores the LBPC value. Then a good kernel may seem to not work: Max brightness isn't bright enough. If this happens people should boot back into the old kernel, set brightness to the maximum, and then reboot. After that everything should be fine. For more information see the below links. This fixes bugs: http://bugzilla.kernel.org/show_bug.cgi?id=23472 http://bugzilla.kernel.org/show_bug.cgi?id=25072 Signed-off-by: Indan Zupancic <indan@nul.nu> Tested-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: dell-laptop: Toggle the unsupported hardware killswitch thinkpad_acpi: Always report scancodes for hotkeys acer-wmi: Fix capitalisation of GUID platform/x86: ideapad-laptop depends on INPUT platform: x86: acer-wmi: world-writable sysfs threeg file platform: x86: asus_acpi: world-writable procfs files platform: x86: tc1100-wmi: world-writable sysfs wireless and jogdial files platform-drivers: x86: pmic: Use request_irq instead of chained handler platform-drivers: x86: pmic: Use irq_chip buslock mechanism platform-drivers: x86: Convert pmic to new irq_chip functions platform-drivers: x86: pmic: Fix up bogus irq hackery
2011-02-21Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] net: provide architecture specific NET_SKB_PAD [S390] atomic: use inline asm [S390] correct ipl parameter block safe guard [S390] atomic: use ACCESS_ONCE() for atomic_read() [S390] dasd: correct device table
2011-02-21dell-laptop: Toggle the unsupported hardware killswitchKeng-Yu Lin
It is found on Dell Inspiron 1018 that the firmware reports that the hardware killswitch is not supported. This makes the rfkill key not functional. This patch forces the driver to toggle the firmware rfkill status in the case that the hardware killswitch is indicated as unsupported by the firmware. Signed-off-by: Keng-Yu Lin <keng-yu.lin@canonical.com> Tested-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>