- 23 Dec, 2011 10 commits
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Thomas Abraham authored
The port reset function in each of the platform specific extension performs the same operations and hence all the reset port functions can be merged into one and moved into the common samsung uart driver. The SoC specific port reset functions are removed from SoC extensions. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
Samsung uart driver lookups the clock using the connection id 'clk_uart_baud'. The uart clocks for all Samsung platforms are reorganized to register them with the lookup name as required by the uart driver. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
With clkdev based clock lookup support, the clock set and get operation using clock names communicated between the samsung uart driver and the SoC specific extension can be removed. In addition to that, for each platform specific extension, add the default clock selection, number of clock options for uart baud generator, clock selection bit mask and shift values which is required by the clkdev support in samsung uart driver. The default clock selection value 'def_clk_sel' specifies the default clock to be used as the source clock for baud rate generator in case the platform code does not specify the same. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
With clkdev based clock lookup added to samsung serial driver, the use of 'struct s3c24xx_uart_clksrc' to supply clock names in platform data is removed from all the Samsung platform code. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Ramax Lo <ramaxlo@gmail.com> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
Instead of using clock names supplied in platform data, use a generic clock name 'clk_uart_baud' to look up clocks. The platform code should register clocks with the name 'clk_uart_baud' which can be used by the baud rate generator. The clock lookup and selection of the best clock as baud rate clock is reworked. Platform code can specify the clocks that can be used as source for the baud clock (as supported previously by passing names of clocks). A new member is added to the platform data 'clk_sel' which holds a bit-field value with each bit representing a baud source clock. If a bit at any bit position is set, that clock is looked up to participate in the selection of the baud clock source. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
s3c2440 uses fclk/n (fclk divided by n) clock as one of the possible clocks used to generate the baud rate clock. The divider 'n' in this case can be logically represented outside of the uart controller. This patch creates a new clock by name "fclk_n" for s3c2440 based platforms to represent the fclk/n clock in the platform code. This clock provides a get_rate callback that checks the UCON0/1/2 registers to determine the clock rate. The samsung uart driver would receive the "fclk_n" clock name as one of the possible baud rate clock options and the driver need not determine clock rate of fclk/n. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
Add a pointer to the location of the platform data in the driver's private data. When instantiated using device tree, pdev->dev->platform_data does not necessarily point to a valid instance of platform data. The platform data pointer in the driver's private data could be set to pdev->dev->platform_data or platform data instance created from device tree. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
As gpio chips get registered, a device tree node which represents the gpio chip is searched and attached to it. A translate function is also provided to convert the gpio specifier into actual platform settings for pin function selection, pull up/down and driver strength settings. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> [kgene.kim@samsung.com: fixed build error] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
Enable conversion of device tree interrupt specifier to linux virq domain for GIC controller. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Thomas Abraham authored
The timer irqs statically mapped from linux irq numbers 11 to 15 are moved to the end of the statically mapped linux irq space. The GIC PPI and SPI interrupts are relocated to start from 16 and 32 of the linux irq space. This is a required to add device tree support for GIC and Interrupt combiner for EXYNOS4. A new macro 'IRQ_TIMER_BASE' specifies a platform specific base of the linux virq number for the timer interrupts. For exynos4, this base is set to end of the linux virq space. For the other S5P platforms, the existing base '11' is retained. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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- 17 Dec, 2011 1 commit
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Linus Torvalds authored
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- 16 Dec, 2011 22 commits
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Linus Torvalds authored
This reverts commit eb1711bb. It blows up the i915 seqno tracking, resulting in the BUG_ON(seqno == 0); in i915_wait_request() triggering, which will cause lock-ups. See for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010 https://lkml.org/lkml/2011/12/14/395Reported-requested-and-tested-by: Dirk Hohndel <dirk@hohndel.org> Reported-by: Richard Eames <Richard.Eames@flinders.edu.au> Reported-by: Rocko Requin <rockorequin@hotmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc32: Be less strict in matching %lo part of relocation. sbus: convert drivers/sbus/char/* to use module_platform_driver() bbc_i2c: Remove unneeded err variable sparc: Use kmemdup rather than duplicating its implementation
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow(). sch_gred: should not use GFP_KERNEL while holding a spinlock ipip, sit: copy parms.name after register_netdevice ipv6: Fix for adding multicast route for loopback device automatically. ssb: fix init regression with SoCs rtl8192{ce,cu,de,se}: avoid problems because of possible ERFOFF -> ERFSLEEP transition mac80211: fix another race in aggregation start fsl_pq_mdio: Clean up tbi address configuration ppp: fix pptp double release_sock in pptp_bind() net/fec: fix the use of pdev->id ath9k: fix check for antenna diversity support batman-adv: delete global entry in case of roaming batman-adv: in case of roaming mark the client with TT_CLIENT_ROAM Bluetooth: Correct version check in hci_setup btusb: fix a memory leak in btusb_send_frame() Bluetooth: bnep: Fix module reference Bluetooth: cmtp: Fix module reference Bluetooth: btmrvl: support Marvell Bluetooth device SD8797
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Linus Torvalds authored
Merge branches 'for-linus' and 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: unplug every once and a while Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code Btrfs: only set cache_generation if we setup the block group Btrfs: don't panic if orphan item already exists Btrfs: fix leaked space in truncate Btrfs: fix how we do delalloc reservations and how we free reservations on error Btrfs: deal with enospc from dirtying inodes properly Btrfs: fix num_workers_starting bug and other bugs in async thread BTRFS: Establish i_ops before calling d_instantiate Btrfs: add a cond_resched() into the worker loop Btrfs: fix ctime update of on-disk inode btrfs: keep orphans for subvolume deletion Btrfs: fix inaccurate available space on raid0 profile Btrfs: fix wrong disk space information of the files Btrfs: fix wrong i_size when truncating a file to a larger size Btrfs: fix btrfs_end_bio to deal with write errors to a single mirror * 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: lower the dirty balance poll interval
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git://people.freedesktop.org/~keithp/linuxLinus Torvalds authored
* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: drm/i915/dp: Dither down to 6bpc if it makes the mode fit drm/i915: enable semaphores on per-device defaults drm/i915: don't set unpin_work if vblank_get fails drm/i915: By default, enable RC6 on IVB and SNB when reasonable iommu: Export intel_iommu_enabled to signal when iommu is in use drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check drm/i915: prevent division by zero when asking for chipset power drm/i915: add PCH info to i915_capabilities drm/i915: set the right SDVO transcoder for CPT drm/i915: no-lvds quirk for ASUS AT5NM10T-I drm/i915: Treat pre-gen4 backlight duty cycle value consistently drm/i915: Hook up Ivybridge eDP drm/i915: add multi-threaded forcewake support
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: HDA: Use LPIB Position fix for Intel SCH Poulsbo ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device ASoC: Fix hx4700 error handling to free gpios if snd_soc_register_card fails ASoC: WM8958: correctly show firmware magic on mismatch ASoC: mxs: Add appropriate MODULE_ALIAS() ASoC: mxs: Add missing MODULE_LICENSE("GPL") ASoC: Fix WM8996 24.576MHz clock operation ASoC: Include linux/module.h for smdk2443_wm9710 ASoC: Fix a typo in jive_wm8750 ASoC: Fix build dependency for SND_SOC_JZ4740_CODEC ASoC: Include linux/io.h for jz4740 codec
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git://git.secretlab.ca/git/linux-2.6Linus Torvalds authored
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: Fix DA9052 GPIO build errors. gpio: mpc8xxx: don't allow input-only pins to be output for MPC5121 gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip gpio-ml-ioh: fix a bug in the interrupt handler gpio: pl061: drop extra check for NULL platform_data
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP: rx51: fix USB ARM: OMAP: mcbsp: Fix possible memory corruption arm/imx: fix power button on imx51 babbage board ARM: imx: fix cpufreq build errors ARM: mx5: add __initconst for fec pdata MXC PWM: should active during DOZE/WAIT/DBG mode ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210 ARM: SAMSUNG: remove duplicated header include
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git://git.kernel.dk/linux-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/linux-block: block: don't kick empty queue in blk_drain_queue() block/swim3: Locking fixes loop: Fix discard_alignment default setting cfq-iosched: fix cfq_cic_link() race confition cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails cciss: fix flush cache transfer length cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler loop: fix loop block driver discard and encryption comment block: initialize request_queue's numa node during
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Wu Fengguang authored
Tests show that the original large intervals can easily make the dirty limit exceeded on 100 concurrent dd's. So adapt to as large as the next check point selected by the dirty throttling algorithm. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Adam Jackson authored
Some active adaptors (VGA usually) only have two lanes at 2.7GHz. That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc. Fixes Asus UX31 panel being black at startup due to no valid modes since dc22ee6f. v2: Rebased to current code, resulting in the fix applying to EDP panels as well. Also changed from spatio-temporal to just spatial dithering on pre-ironlake, to be conssitent (and less visual flicker) Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Eric Anholt <eric@anholt.net> Tested-by: Dirk Hohndel <hohndel@infradead.org> Signed-off-by: Keith Packard <keithp@keithp.com>
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Eugeni Dodonov authored
This adds a default setting for semaphores parameter, and enables semaphores by default on IVB. For now, as semaphores interaction with VTd causes random issues on SNB, we do not enable them by default. But they can still be enabled via the semaphores=1 kernel parameter. v2: enables semaphores on SNB when IO remapping is disabled, with base on Keith Packard patch. CC: Daniel Vetter <daniel.vetter@ffwll.ch> CC: Ben Widawsky <ben@bwidawsk.net> CC: Keith Packard <keithp@keithp.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Jesse Barnes authored
This fixes a race where we may try to finish a page flip and decrement the refcount even if our vblank_get failed and we ended up with a spurious flip pending interrupt. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
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Keith Packard authored
RC6 should always work on IVB, and should work on SNB whenever IO remapping is disabled. RC6 never works on Ironlake. Make the default value for the parameter follow these guidelines. Setting the value to either 0 or 1 will force the specified behavior. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567 Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu>
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Eugeni Dodonov authored
In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar is enabled. The new 'intel_iommu_enabled' variable signals when the iommu code is in operation. Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu> CC: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Chris Wilson authored
We were checking whether the supplied edid matched the connector it was read from. We do this in case a DDC read returns an EDID for another device on a multifunction or otherwise interesting card. However, we failed to include LVDS as a digital device and so rejecting an otherwise valid EDID. Fixes the detection of the secondary SDVO LVDS panel on the Libretto W105. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Adam Jackson <ajax@redhat.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39216Signed-off-by: Keith Packard <keithp@keithp.com>
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Eugeni Dodonov authored
This prevents an in-kernel division by zero which happens when we are asking for i915_chipset_val too quickly, or within a race condition between the power monitoring thread and userspace accesses via debugfs. The issue can be reproduced easily via the following command: while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done This is particularly dangerous because it can be triggered by a non-privileged user by just reading the debugfs entry. This issue was also found independently by Konstantin Belousov <kostikbel@gmail.com>, who proposed a similar patch. Reported-by: Konstantin Belousov <kostikbel@gmail.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Keith Packard <keithp@keithp.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Paulo Zanoni authored
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Paulo Zanoni authored
v2: add a CPT-specific macro, make code cleaner v3: fix commit message Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41272 Cc: stable@kernel.org Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com>
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Adam Jackson authored
https://bugzilla.redhat.com/show_bug.cgi?id=750006Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Olof Johansson authored
Merge branch 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
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- 15 Dec, 2011 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibftLinus Torvalds authored
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: ibft: Fix finding IBFT ACPI table on UEFI
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: r8712u: Add new USB ID staging: tidspbridge: request dmtimer clocks on init staging: tidspbridge: include module.h by default
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: option: Removing one bogus and adding some new Huawei combinations USB: cdc-acm: add IDs for Motorola H24 HSPA USB module. usb: option: Add Huawei E398 controlling interfaces usb: renesas_usbhs: add hcd->has_tt for low/full speed usb: renesas_usbhs: typofix: irq_dtch control DTCHE usb: gadget: storage: release superspeed descriptors.
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Uwe Kleine-König authored
The bisection implemented in unwind_find_origin() stopped to early. If there is only a single entry left to check the original code just took the end point as origin which might be wrong. This was introduced in commit de66a979 ("ARM: 7187/1: fix unwinding for XIP kernels"). Reported-and-tested-by: Nick Bowler <nbowler@elliptictech.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Chris Mason authored
The btrfs io submission threads can build up massive plug lists. This keeps things more reasonable so we don't hand over huge dumps of IO at once. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Tejun Heo authored
While probing, fd sets up queue, probes hardware and tears down the queue if probing fails. In the process, blk_drain_queue() kicks the queue which failed to finish initialization and fd is unhappy about that. floppy0: no floppy controllers found ------------[ cut here ]------------ WARNING: at drivers/block/floppy.c:2929 do_fd_request+0xbf/0xd0() Hardware name: To Be Filled By O.E.M. VFS: do_fd_request called on non-open device Modules linked in: Pid: 1, comm: swapper Not tainted 3.2.0-rc4-00077-g5983fe2b #2 Call Trace: [<ffffffff81039a6a>] warn_slowpath_common+0x7a/0xb0 [<ffffffff81039b41>] warn_slowpath_fmt+0x41/0x50 [<ffffffff813d657f>] do_fd_request+0xbf/0xd0 [<ffffffff81322b95>] blk_drain_queue+0x65/0x80 [<ffffffff81322c93>] blk_cleanup_queue+0xe3/0x1a0 [<ffffffff818a809d>] floppy_init+0xdeb/0xe28 [<ffffffff818a72b2>] ? daring+0x6b/0x6b [<ffffffff810002af>] do_one_initcall+0x3f/0x170 [<ffffffff81884b34>] kernel_init+0x9d/0x11e [<ffffffff810317c2>] ? schedule_tail+0x22/0xa0 [<ffffffff815dbb14>] kernel_thread_helper+0x4/0x10 [<ffffffff81884a97>] ? start_kernel+0x2be/0x2be [<ffffffff815dbb10>] ? gs_change+0xb/0xb Avoid it by making blk_drain_queue() kick queue iff dispatch queue has something on it. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> Reported-by: Wu Fengguang <fengguang.wu@intel.com> Tested-by: Sergei Trofimovich <slyich@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Linus Torvalds authored
Merge branch 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/swiotlb: Use page alignment for early buffer allocation. xen: only limit memory map to maximum reservation for domain 0.
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