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2011-12-23rtc: rtc-s3c: Add device tree supportThomas Abraham2-1/+40
Add device tree based discovery support for Samsung's rtc controller. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23input: samsung-keypad: Add device tree supportThomas Abraham2-12/+250
Add device tree based discovery support for Samsung's keypad controller. Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5PV210: Modify platform data for pl330 driverThomas Abraham1-172/+69
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5PC100: Modify platform data for pl330 driverThomas Abraham1-178/+69
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5P64x0: Modify platform data for pl330 driverThomas Abraham1-162/+65
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Add a alias for pdma clocksThomas Abraham1-10/+25
PDMA controllers when instantiated from device tree are registered using amba_device_register(). The registration process enables clock to the controllers to read the peripheral id of the PDMA amba device. In case of Exynos4, the clocks to the PDMA controllers are named as 'dma' but amba_device_register() looks up the clock using the name 'apb_pclk'. Hence, alias clocks with name 'apb_pclk' clock are created for clocks with name 'dma'. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Limit usage of pl330 device instance to non-dt buildThomas Abraham3-1/+16
The pl330 device instances and associated platform data is required only for non-device-tree builds. With device tree enabled, the data about the platform is obtained from the device tree. For images that include both dt and non-dt platforms, an addditional check is added to ensure that static amba device registrations is applicable to only non-dt platforms. Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappersThomas Abraham3-2/+11
A new dma request id 'DMACH_DT_PROP' is introduced for client drivers requesting a dma channel. This request indicates that a device tree node property represting the dma channel is available in 'struct samsung_dma_info'. The dma channel request wrapper uses the node property value as the value for the filter parameter. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23DMA: PL330: Add device tree supportThomas Abraham2-4/+59
For PL330 dma controllers instantiated from device tree, the channel lookup is based on phandle of the dma controller and dma request id specified by the client node. During probe, the private data of each channel of the controller is set to point to the device node of the dma controller. The 'chan_id' of the each channel is used as the dma request id. Client driver requesting dma channels specify the phandle of the dma controller and the request id. The pl330 filter function converts the phandle to the device node pointer and matches that with channel's private data. If a match is found, the request id from the client node and the 'chan_id' of the channel is matched. A channel is found if both the values match. Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Modify platform data for pl330 driverThomas Abraham1-161/+64
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23DMA: PL330: Infer transfer direction from transfer request instead of ↵Thomas Abraham2-59/+19
platform data The transfer direction for a channel can be inferred from the transfer request and the need for specifying transfer direction in platfrom data can be eliminated. So the structure definition 'struct dma_pl330_peri' is no longer required. The channel's private data is set to point to a channel id specified in the platform data (instead of an instance of type 'struct dma_pl330_peri'). The filter function is correspondingly modified to match the channel id. With the 'struct dma_pl330_peri' removed from platform data, the dma controller transfer capabilities cannot be inferred any more. Hence, the dma controller capabilities is specified using platform data. Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23DMA: PL330: move filter function into driverThomas Abraham3-6/+17
The dma channel selection filter function is moved from plat-samsung into the pl330 driver. In additon to that, a check is added in the filter function to ensure that the channel on which the filter has been invoked is pl330 channel instance (and avoid any incorrect access of chan->private in a system with multiple types of DMA drivers). Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: Fix build for non-Exynos4210 devicesMark Brown1-1/+1
exynos4120_serial_drv_data is only defined when building with support for Exynos4210 so use the already provided define to ensure that we don't reference it when building for other SoCs. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> [kgene.kim@samsung.com: Fixed build warning] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: add device tree supportThomas Abraham2-2/+48
Add device tree based discovery support for Samsung's uart controller. Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: merge probe() function from all SoC specific extensionsThomas Abraham10-577/+265
With reset port, set clock and get clock functions in SoC specific extentions being removed, only the driver probe is left over in these extensions. The probe function itself can be merged into one and moved into the samsung common serial driver. With driver probe also moved, all the SoC specific extentions are no longer required and they are deleted. 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>
2011-12-23serial: samsung: merge all SoC specific port reset functionsThomas Abraham6-116/+19
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>
2011-12-23ARM: SAMSUNG: register uart clocks to clock lookup listThomas Abraham11-126/+266
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>
2011-12-23serial: samsung: remove all uses of get_clksrc and set_clksrcThomas Abraham8-247/+27
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>
2011-12-23ARM: SAMSUNG: remove struct 's3c24xx_uart_clksrc' and all uses of itThomas Abraham12-226/+14
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>
2011-12-23serial: samsung: switch to clkdev based clock lookupThomas Abraham3-121/+95
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>
2011-12-23ARM: S3C2440: move handling of fclk/n clock to platform codeThomas Abraham5-55/+44
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>
2011-12-23serial: samsung: Keep a copy of the location of platform data in driver's ↵Thomas Abraham3-7/+25
private data 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>
2011-12-23gpio/samsung: Add device tree support for EXYNOS4Thomas Abraham2-0/+112
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>
2011-12-23ARM: EXYNOS: Enable conversion of GIC dt irq specifier to linux virqThomas Abraham1-1/+16
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>
2011-12-23ARM: SAMSUNG: Move timer irq numbers to end of linux irq spaceThomas Abraham6-5/+13
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>
2011-12-16Linux 3.2-rc6v3.2-rc6Linus Torvalds1-1/+1
2011-12-16Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"Linus Torvalds1-6/+1
This reverts commit eb1711bb94991e93669c5a1b5f84f11be2d51ea1. 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/2011/12/14/395 Reported-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>
2011-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds8-76/+13
* 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
2011-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds22-129/+130
* 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
2011-12-16Merge branches 'for-linus' and 'for-linus-3.2' of ↵Linus Torvalds13-140/+311
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
2011-12-16Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linuxLinus Torvalds14-90/+361
* '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
2011-12-16Merge branch 'for-linus' of ↵Linus Torvalds11-6/+23
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * '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
2011-12-16Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds4-23/+52
* '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
2011-12-16Merge branch 'fixes' of ↵Linus Torvalds11-13/+26
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * '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
2011-12-16Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds6-168/+246
* '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
2011-12-16btrfs: lower the dirty balance poll intervalWu Fengguang1-0/+2
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>
2011-12-16drm/i915/dp: Dither down to 6bpc if it makes the mode fitAdam Jackson3-8/+39
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 dc22ee6fc18ce0f15424e753e8473c306ece95c1. 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>
2011-12-16drm/i915: enable semaphores on per-device defaultsEugeni Dodonov3-4/+21
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=38862 Reviewed-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>
2011-12-16drm/i915: don't set unpin_work if vblank_get failsJesse Barnes1-5/+7
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>
2011-12-16drm/i915: By default, enable RC6 on IVB and SNB when reasonableKeith Packard3-6/+33
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>
2011-12-16iommu: Export intel_iommu_enabled to signal when iommu is in useEugeni Dodonov2-0/+7
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>
2011-12-16drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL checkChris Wilson1-8/+20
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=39216 Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: prevent division by zero when asking for chipset powerEugeni Dodonov2-0/+11
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>
2011-12-16drm/i915: add PCH info to i915_capabilitiesPaulo Zanoni1-0/+1
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>
2011-12-16drm/i915: set the right SDVO transcoder for CPTPaulo Zanoni2-6/+10
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>
2011-12-16drm/i915: no-lvds quirk for ASUS AT5NM10T-IAdam Jackson1-0/+8
https://bugzilla.redhat.com/show_bug.cgi?id=750006 Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-15Merge branch 'samsung-fixes-3' of ↵Olof Johansson3-4/+11
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
2011-12-15Merge branch 'fixes' of ↵Olof Johansson2-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
2011-12-15Merge branch 'linux-next' of ↵Linus Torvalds2-26/+42
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: ibft: Fix finding IBFT ACPI table on UEFI
2011-12-15Merge branch 'staging-linus' of ↵Linus Torvalds3-7/+13
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging * '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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