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2016-05-10mwifiex: change sleep cookie poll countShengzhen Li
Sometimes current polling count is not sufficient. This patch increases it to 100. Signed-off-by: Shengzhen Li <szli@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-10ata: sata_dwc_460ex: add __iomem to register base pointerMans Rullgard
The pointer to the mmio register base is missing the __iomem annotation. Fix this. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: get rid of incorrect castMans Rullgard
The (void *__iomem) cast is wrong. Change the target type of the "base" pointer to void __iomem instead and drop the cast. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: get rid of some pointless castsMans Rullgard
Casting a pointer to unsigned long only to immediately cast it back to a pointer makes no sense. Fix this. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: remove empty libata callbackMans Rullgard
The sata_dwc_qc_prep() does nothing. Use the default ata_noop_qc_prep instead. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: correct HOSTDEV{P}_FROM_*() macrosAndy Shevchenko
Here we refactor HOSTDEV{P}_FROM_*() macros to fit one line and fix the definition of HSDEV_FROM_HSDEVP() where wrong name of the parameter waas used. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: get rid of global dataMans Rullgard
This moves all global data into the driver private struct, thus permitting multiple devices of this type to be used. The core_scr_read/write() functions are replaced with equivalent calls to the existing sata_dwc_scr_read/write(). Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: add phy supportMans Rullgard
This adds support for powering on an optional PHY when activating the device. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: use "dmas" DT property to find dma channelMans Rullgard
Currently this driver only works with a DesignWare DMA engine which it registers manually using the second "reg" address range and interrupt number from the DT node. This patch makes the driver instead use the "dmas" property if present, otherwise optionally falling back on the old way so existing device trees can continue to work. With this change, there is no longer any reason to depend on the 460EX machine type so drop that from Kconfig. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: don't call ata_sff_qc_issue() on DMA commandsAndy Shevchenko
ata_sff_qc_issue() can't handle DMA commands and thus we have to avoid it for them. Do call ata_bmdma_qc_issue() instead for this case. Note that the former one distinguishes PIO and DMA mode and behaves accordingly. Suggested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: skip dma setup for non-dma commandsMans Rullgard
Calling dmaengine_prep_slave_sg() for non-dma ATA commands is unnecessary at best and could be harmful if the dma driver reacts badly to this. It also causes this driver to print a bogus error message in these cases. This patch changes sata_dwc_qc_issue() to only do the dma setup for dma commands and also reports an error to libata if if fails. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: select only core part of DMA driverAndy Shevchenko
There is no need to have a platform driver compiled since the DMA driver is used as a library. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: DMA is always a flow controllerAndy Shevchenko
In the original code the DMA is always a flow controller. Set this accordingly in updated code. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: burst size must be in items not bytesAndy Shevchenko
The burst size as defined by DMAengine API is in items of address width. Derive burst size from AHB_DMA_BRST_DFLT (64 bytes) by dividing it to DMA_SLAVE_BUSWIDTH_4_BYTES (4 bytes) that gives us 16 items. Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: set dma_boundary to 0x1fffAndy Shevchenko
The original code states: Make sure a LLI block is not created that will span 8K max FIS boundary. If the block spans such a FIS boundary, there is a chance that a DMA burst will cross that boundary -- this results in an error in the host controller. Since we have switched to generic DMAengine API we satisfy above by setting dma_boundary value to 0x1fff. Suggested-by: Mans Rullgard <mans@mansr.com> Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: fix crash on offline links without an attached driveChristian Lamparter
This patch fixes Machine Check "Data Write PLB Error" which happens when libata-sff's ata_sff_dev_select is trying to write into the device_addr in order to select a drive. However, SATA has no master or slave devices like the old ATA Bus, therefore selecting a different drive is kind of pointless. Data Write PLB Error Oops: Machine check, sig: 7 [#1] PowerPC 44x Platform Modules linked in: CPU: 0 PID: 508 Comm: scsi_eh_0 Not tainted 4.6.0-rc3-next-20160412+ #10 [...] NIP [c027e820] ata_sff_dev_select+0x3c/0x44 LR [c027e810] ata_sff_dev_select+0x2c/0x44 Call Trace: [cec31cd0] [c027da00] ata_sff_postreset+0x40/0xb4 (unreliable) [cec31ce0] [c027a03c] ata_eh_reset+0x5cc/0x928 [cec31d60] [c027a840] ata_eh_recover+0x330/0x10bc [cec31df0] [c027bae0] ata_do_eh+0x4c/0xa4 [...] Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10ata: sata_dwc_460ex: remove incorrect lockingMans Rullgard
This lock is already taken in ata_scsi_queuecmd() a few levels up the call stack so attempting to take it here is an error. Moreover, it is pointless in the first place since it only protects a single, atomic assignment. Enabling lock debugging gives the following output: ============================================= [ INFO: possible recursive locking detected ] 4.4.0-rc5+ #189 Not tainted --------------------------------------------- kworker/u2:3/37 is trying to acquire lock: (&(&host->lock)->rlock){-.-...}, at: [<90283294>] sata_dwc_exec_command_by_tag.constprop.14+0x44/0x8c but task is already holding lock: (&(&host->lock)->rlock){-.-...}, at: [<902761ac>] ata_scsi_queuecmd+0x2c/0x330 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&host->lock)->rlock); lock(&(&host->lock)->rlock); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by kworker/u2:3/37: #0: ("events_unbound"){.+.+.+}, at: [<9003a0a4>] process_one_work+0x12c/0x430 #1: ((&entry->work)){+.+.+.}, at: [<9003a0a4>] process_one_work+0x12c/0x430 #2: (&bdev->bd_mutex){+.+.+.}, at: [<9011fd54>] __blkdev_get+0x50/0x380 #3: (&(&host->lock)->rlock){-.-...}, at: [<902761ac>] ata_scsi_queuecmd+0x2c/0x330 stack backtrace: CPU: 0 PID: 37 Comm: kworker/u2:3 Not tainted 4.4.0-rc5+ #189 Workqueue: events_unbound async_run_entry_fn Stack : 90b38e30 00000021 00000003 9b2a6040 00000000 9005f3f0 904fc8dc 00000025 906b96e4 00000000 90528648 9b3336c4 904fc8dc 9009bf18 00000002 00000004 00000000 00000000 9b3336c4 9b3336e4 904fc8dc 9003d074 00000000 90500000 9005e738 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6e657665 755f7374 756f626e 0000646e 00000000 00000000 9b00ca00 9b025000 ... Call Trace: [<90009d6c>] show_stack+0x88/0xa4 [<90057744>] __lock_acquire+0x1ce8/0x2154 [<900583e4>] lock_acquire+0x64/0x8c [<9045ff10>] _raw_spin_lock_irqsave+0x54/0x78 [<90283294>] sata_dwc_exec_command_by_tag.constprop.14+0x44/0x8c [<90283484>] sata_dwc_qc_issue+0x1a8/0x24c [<9026b39c>] ata_qc_issue+0x1f0/0x410 [<90273c6c>] ata_scsi_translate+0xb4/0x200 [<90276234>] ata_scsi_queuecmd+0xb4/0x330 [<9025800c>] scsi_dispatch_cmd+0xd0/0x128 [<90259934>] scsi_request_fn+0x58c/0x638 [<901a3e50>] __blk_run_queue+0x40/0x5c [<901a83d4>] blk_queue_bio+0x27c/0x28c [<901a5914>] generic_make_request+0xf0/0x188 [<901a5a54>] submit_bio+0xa8/0x194 [<9011adcc>] submit_bh_wbc.isra.23+0x15c/0x17c [<9011c908>] block_read_full_page+0x3e4/0x428 [<9009e2e0>] do_read_cache_page+0xac/0x210 [<9009fd90>] read_cache_page+0x18/0x24 [<901bbd18>] read_dev_sector+0x38/0xb0 [<901bd174>] msdos_partition+0xb4/0x5c0 [<901bcb8c>] check_partition+0x140/0x274 [<901bba60>] rescan_partitions+0xa0/0x2b0 [<9011ff68>] __blkdev_get+0x264/0x380 [<901201ac>] blkdev_get+0x128/0x36c [<901b9378>] add_disk+0x3c0/0x4bc [<90268268>] sd_probe_async+0x100/0x224 [<90043a44>] async_run_entry_fn+0x50/0x124 [<9003a11c>] process_one_work+0x1a4/0x430 [<9003a4f4>] worker_thread+0x14c/0x4fc [<900408f4>] kthread+0xd0/0xe8 [<90004338>] ret_from_kernel_thread+0x14/0x1c Fixes: 62936009f35a ("[libata] Add 460EX on-chip SATA driver, sata_dwc_460ex") Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-10gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)Pablo Neira
This is an initial implementation of a netdev driver for GTP datapath (GTP-U) v0 and v1, according to the GSM TS 09.60 and 3GPP TS 29.060 standards. This tunneling protocol is used to prevent subscribers from accessing mobile carrier core network infrastructure. This implementation requires a GGSN userspace daemon that implements the signaling protocol (GTP-C), such as OpenGGSN [1]. This userspace daemon updates the PDP context database that represents active subscriber sessions through a genetlink interface. For more context on this tunneling protocol, you can check the slides that were presented during the NetDev 1.1 [2]. Only IPv4 is supported at this time. [1] http://git.osmocom.org/openggsn/ [2] http://www.netdevconf.org/1.1/proceedings/slides/schultz-welte-osmocom-gtp.pdf Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-10iwlwifi: Edit the 8265 SDIO IDMordechai Goodstein
Add new 8265 series SDIO ID. Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10iwlwifi: mvm: support p2p device frames tx on dqa queue #2Liad Kaufman
Support sending P2P device frames should be sent from queue #2, as required in DQA mode. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10iwlwifi: mvm: allocate queue for probe response in dqa modeLiad Kaufman
In DQA mode, allocate a dedicated queue (#9) for P2P GO/soft AP probe responses. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10drm/exynos/decon5433: fix trigger configurationAndrzej Hajda
It seems trigger cannot be configured too early, otherwise it does not work in case of panel. The patch fixes also trigger flag logic, previously HW-TRIGGER flag was cleared in case of panel - as a result panel used always software trigger. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/dsi: use of_graph_get_endpoint_by_regs helperPhilipp Zabel
This allows to remove the local of_graph_get_port_by_reg(), of_graph_get_endpoint_by_reg(), and of_get_child_by_name_reg() functions. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/dpi: use of_graph_get_endpoint_by_regs helperPhilipp Zabel
This allows to remove the local of_graph_get_port_by_reg(), of_graph_get_endpoint_by_reg(), of_get_child_by_name_reg(), and of_graph_get_remote_port_parent() functions. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: Nuke dummy fb->dirty callbackDaniel Vetter
It's an optional hook. Might be needed for frontbuffer rendering on manual upload displays, but a simple TODO doesn't explain at all what needs to be done or why. Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: use directly DMA mapping APIs on g2dJoonyoung Shim
There is no reason to be wapper functions to use DMA mapping APIs. Use directly DMA mapping APIs and remove the wapper functions. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/hdmi: Don't print error on deferral due to regulatorsJavier Martinez Canillas
The regulators may not be available just because their driver's probe function was just not executed and so the regulators not registered. So, in this case the Exynos HDMI driver should not print logs since a -EPROBE_DEFER is not really an error and that will just pollute the kernel log and confuse users. This patch prevents the following misleading messages to be printed: [ 1.443638] [drm:hdmi_probe] *ERROR* failed to get regulators [ 1.449326] [drm:hdmi_probe] *ERROR* hdmi_resources_init failed Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: fix imported dma-buf to be mappedJoonyoung Shim
The imported dma-buf should be mapped by sub-system exporting it. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: support gem_prime_mmapJoonyoung Shim
This allows exported dma-bufs to be mapped using gem_prime_mmap. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: fimd: harden fimd_calc_clkdiv()Tobias Jakobi
Don't use the vrefresh field of the DRM mode since this one is supposed to only be used for debug purpose. Instead use the clock field which should also provide much more precise information. Also sanitize the case in which the clock value should be zero. We then just default to the maximum clock divisor. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos: fix cancel page flip codeAndrzej Hajda
Driver code did not remove event from the list of pending events before destroy. As a result drm core later tried to inspect invalid memory location. The patch replaces removal code with call to core helper. The bug was detected using KASAN: [ 10.107249] ================================================================== [ 10.107518] BUG: KASAN: use-after-free in drm_release+0xe9c/0x1000 at addr ffffffc089154a18 [ 10.107784] Read of size 8 by task modetest/103 [ 10.107931] ============================================================================= [ 10.113191] BUG kmalloc-128 (Not tainted): kasan: bad access detected [ 10.119608] ----------------------------------------------------------------------------- [ 10.119608] [ 10.129243] Disabling lock debugging due to kernel taint [ 10.134551] INFO: Allocated in drm_mode_page_flip_ioctl+0x500/0xa98 age=4 cpu=0 pid=103 [ 10.142532] alloc_debug_processing+0x18c/0x198 [ 10.147043] ___slab_alloc.constprop.28+0x360/0x380 [ 10.151906] __slab_alloc.isra.25.constprop.27+0x54/0xa0 [ 10.157197] kmem_cache_alloc_trace+0x370/0x3b0 [ 10.161709] drm_mode_page_flip_ioctl+0x500/0xa98 [ 10.166400] drm_ioctl+0x4c4/0xb68 [ 10.169787] do_vfs_ioctl+0x16c/0xeb8 [ 10.173429] SyS_ioctl+0x8c/0xa0 [ 10.176642] el0_svc_naked+0x24/0x28 [ 10.180204] INFO: Freed in exynos_drm_crtc_cancel_page_flip+0xe0/0x160 age=0 cpu=0 pid=103 [ 10.188447] free_debug_processing+0x174/0x388 [ 10.192871] __slab_free+0x2e8/0x438 [ 10.196431] kfree+0x350/0x360 [ 10.199469] exynos_drm_crtc_cancel_page_flip+0xe0/0x160 [ 10.204762] exynos_drm_preclose+0x58/0xa0 [ 10.208844] drm_release+0x1f0/0x1000 [ 10.212491] __fput+0x1c4/0x5b8 [ 10.215613] ____fput+0xc/0x18 [ 10.218654] task_work_run+0x130/0x198 [ 10.222385] do_exit+0x700/0x2278 [ 10.225681] do_group_exit+0xe4/0x2c8 [ 10.229327] SyS_exit_group+0x1c/0x20 [ 10.232973] el0_svc_naked+0x24/0x28 [ 10.236532] INFO: Slab 0xffffffbdc2a45500 objects=32 used=10 fp=0xffffffc089154a00 flags=0x4080 [ 10.245210] INFO: Object 0xffffffc089154a00 @offset=2560 fp=0xffffffc089157600 [ 10.245210] ... [ 10.384532] CPU: 0 PID: 103 Comm: modetest Tainted: G B 4.5.0-rc3-00748-gd5e2881 #271 [ 10.398325] Call trace: [ 10.400764] [<ffffffc000091428>] dump_backtrace+0x0/0x328 [ 10.406141] [<ffffffc000091764>] show_stack+0x14/0x20 [ 10.411176] [<ffffffc00089c550>] dump_stack+0xb0/0xe8 [ 10.416210] [<ffffffc000395778>] print_trailer+0xf8/0x160 [ 10.421592] [<ffffffc00039b5cc>] object_err+0x3c/0x50 [ 10.426626] [<ffffffc00039d630>] kasan_report_error+0x248/0x550 [ 10.432527] [<ffffffc00039da50>] __asan_report_load8_noabort+0x40/0x48 [ 10.439039] [<ffffffc000b5b724>] drm_release+0xe9c/0x1000 [ 10.444419] [<ffffffc0003d340c>] __fput+0x1c4/0x5b8 [ 10.449280] [<ffffffc0003d3884>] ____fput+0xc/0x18 [ 10.454055] [<ffffffc000101aa8>] task_work_run+0x130/0x198 [ 10.459522] [<ffffffc0000bc058>] do_exit+0x700/0x2278 [ 10.464557] [<ffffffc0000bdcfc>] do_group_exit+0xe4/0x2c8 [ 10.469939] [<ffffffc0000bdefc>] SyS_exit_group+0x1c/0x20 [ 10.475320] [<ffffffc000087530>] el0_svc_naked+0x24/0x28 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/decon5433: do not use unnecessary software triggerAndrzej Hajda
Software trigger should not be used if hardware trigger is configured. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/decon5433: handle vblank in vblank interruptAndrzej Hajda
vblank should be signaled to userspace after reading framebuffers not before, signaling it in TE interrupt looks wrong. TE triggers reading framebuffers so it is the worst moment. Tearing is not observable because hardware prevents it, but there are frequently skipped vblank events. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/hdmi: expose HDMI-PHY clock as pipeline clockAndrzej Hajda
HDMI-PHY clock should be accessible from other components in the pipeline. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10pinctrl: stm32: Implement .pin_config_dbg_show()Patrice Chotard
Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-05-10gpio: of: make it possible to name GPIO linesLinus Walleij
Make it possible to name the producer side of a GPIO line using a "gpio-line-names" property array, modeled on the "clock-output-names" property from the clock bindings. This naming is especially useful for: - Debugging: lines are named after function, not just opaque offset numbers. - Exploration: systems where some or all GPIO lines are available to end users, such as prototyping, one-off's "makerspace usecases" users are helped by the names of the GPIO lines when tinkering. This usecase has been surfacing recently. The gpio-line-names attribute is completely optional. Example output from lsgpio on a patched Snowball tree: GPIO chip: gpiochip6, "8000e180.gpio", 32 GPIO lines line 0: unnamed unused line 1: "AP_GPIO161" "extkb3" [kernel] line 2: "AP_GPIO162" "extkb4" [kernel] line 3: "ACCELEROMETER_INT1_RDY" unused [kernel] line 4: "ACCELEROMETER_INT2" unused line 5: "MAG_DRDY" unused [kernel] line 6: "GYRO_DRDY" unused [kernel] line 7: "RSTn_MLC" unused line 8: "RSTn_SLC" unused line 9: "GYRO_INT" unused line 10: "UART_WAKE" unused line 11: "GBF_RESET" unused line 12: unnamed unused Cc: Grant Likely <grant.likely@linaro.org> Cc: Amit Kucheria <amit.kucheria@linaro.org> Cc: David Mandala <david.mandala@linaro.org> Cc: Lee Campbell <leecam@google.com> Cc: devicetree@vger.kernel.org Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Michael Welling <mwelling@ieee.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-05-10s390: make couple of variables and functions staticHeiko Carstens
copy_oldmem_user() and ap_jumptable are private to the files they are being used in. Therefore make them static. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-05-10s390/3270: hangup the 3270 tty after a disconnectMartin Schwidefsky
The disconnect and later reconnect of a 3270 terminal does not do a tty hangup. The current session is resumed which is a security issue. Do a tty hangup after a unit check has been received. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-05-10s390/3270: handle reconnect of a tty with a different sizeMartin Schwidefsky
If an existing 3270 terminal disconnects and reconnects with a different size, the 3270 driver still works with the old size. If the new dimensions are larger the output merely looks funny, if the new dimensions are smaller the terminal is unusable. To fix this restart the size detection after a unit check has been received. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-05-10video: AMBA CLCD: Remove unncessary include in amba-clcd.cWang Hongcheng
The header file asm/sizes.h is unnecessary. And it can also be compiled under X86 arch after the removal. Signed-off-by: Wang Hongcheng <annie.wang@amd.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10fbdev: ssd1307fb: Fix charge pump settingJulian Scheel
Make sure bit 4 is set for the charge pump setting. It is required according to SSD1306 App Note. Signed-off-by: Julian Scheel <julian@jusst.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10crypto: caam - fix caam_jr_alloc() ret codeCatalin Vasile
caam_jr_alloc() used to return NULL if a JR device could not be allocated for a session. In turn, every user of this function used IS_ERR() function to verify if anything went wrong, which does NOT look for NULL values. This made the kernel crash if the sanity check failed, because the driver continued to think it had allocated a valid JR dev instance to the session and at some point it tries to do a caam_jr_free() on a NULL JR dev pointer. This patch is a fix for this issue. Cc: <stable@vger.kernel.org> Signed-off-by: Catalin Vasile <cata.vasile@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-10crypto: vmx - comply with ABIs that specify vrsave as reserved.Paulo Flabiano Smorigo
It gives significant improvements ( ~+15%) on some modes. These code has been adopted from OpenSSL project in collaboration with the original author (Andy Polyakov <appro@openssl.org>). Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-10fbdev: fbmem: implement error handling in fbmem_init()Alexey Khoroshilov
fbmem_init() ignores all errors, while fbmem_exit() does not check if deallocating resources are valid. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10Merge tag 'iwlwifi-for-kalle-2016-05-04' of ↵Luca Coelho
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes * fix P2P rates (and possibly other issues) Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10fbdev: sh_mipi_dsi: remove driverSimon Horman
Remove the sh_mipi_dsi driver as it appears to be unused since c0bb9b302769 ("ARCH: ARM: shmobile: Remove ag5evm board support"). Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10video: fbdev: imxfb: add some error handlingUwe Kleine-König
clk_prepare_enable can fail and if it does the controller must not be considered enabled. So check for errors, properly unwind and give the error code back to the caller. While touching the clock code also enable the clocks in the same direction and disable in reverse order. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10video: fbdev: imxfb: fix semantic of .get_power and .set_powerUwe Kleine-König
.set_power gets passed an FB_BLANK_XXX value, not a bool. So 0 signals on; and >1 means off. The same applies for return values of .get_power. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10mmc: core: remove the invalid message in mmc_select_timingDong Aisheng
mmc_select_hs200() and mmc_select_hs() will keep the timing as before if switch fails. So it's meaningless to print the failed switched mode outside based on the current host timing. Furthermore, the original print is wrong, it should be: pr_warn("%s: switch to %s failed\n", mmc_hostname(card->host), mmc_card_hs(card) ? "high-speed" : (mmc_card_hs200(card) ? "hs200" : "")); Since we already have error message in mmc_select_hs200(), simply remove it outside. Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-10mmc: core: fix using wrong io voltage if mmc_select_hs200 failsDong Aisheng
Currently MMC core will keep going if HS200/HS timing switch failed with -EBADMSG error by the assumption that the old timing is still valid. However, for mmc_select_hs200 case, the signal voltage may have already been switched. If the timing switch failed, we should fall back to the old voltage in case the card is continue run with legacy timing. If fall back signal voltage failed, we explicitly report an EIO error to force retry during the next power cycle. Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>