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2015-10-16stm class: Select configfsAlexander Shishkin1-0/+1
STM policy handling is basically configfs, I honestly don't know how we ended up without a Kconfig dependency, but thanks to randconfig testing, it's now caught. Reported-by: Jim Davis <jim.epost@gmail.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16extcon: Modify the id and name of external connectorChanwoo Choi10-119/+139
This patch modifies the id and name of external connector with the additional prefix to clarify both attribute and meaning of external connector as following: - EXTCON_CHG_* mean the charger connector. - EXTCON_JACK_* mean the jack connector. - EXTCON_DISP_* mean the display port connector. Following table show the new name of external connector with old name: -------------------------------------------------- Old extcon name | New extcon name | -------------------------------------------------- EXTCON_TA | EXTCON_CHG_USB_DCP | EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP | EXTCON_FAST_CHARGER | EXTCON_CHG_USB_FAST | EXTCON_SLOW_CHARGER | EXTCON_CHG_USB_SLOW | -------------------------------------------------- EXTCON_MICROPHONE | EXTCON_JACK_MICROPHONE | EXTCON_HEADPHONE | EXTCON_JACK_HEADPHONE | EXTCON_LINE_IN | EXTCON_JACK_LINE_IN | EXTCON_LINE_OUT | EXTCON_JACK_LINE_OUT | EXTCON_VIDEO_IN | EXTCON_JACK_VIDEO_IN | EXTCON_VIDEO_OUT | EXTCON_JACK_VIDEO_OUT | EXTCON_SPDIF_IN | EXTCON_JACK_SPDIF_IN | EXTCON_SPDIF_OUT | EXTCON_JACK_SPDIF_OUT | -------------------------------------------------- EXTCON_HMDI | EXTCON_DISP_HDMI | EXTCON_MHL | EXTCON_DISP_MHL | EXTCON_DVI | EXTCON_DISP_DVI | EXTCON_VGA | EXTCON_DISP_VGA | -------------------------------------------------- And, when altering the name of USB charger connector, EXTCON refers to the "Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard name of USB charging port as following. Following name of USB charging port are already used in power_supply subsystem. We chan check it on patch[2]. - EXTCON_CHG_USB_SDP /* Standard Downstream Port */ - EXTCON_CHG_USB_DCP /* Dedicated Charging Port */ - EXTCON_CHG_USB_CDP /* Charging Downstream Port */ - EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */ [1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip [2] commit 85efc8a18ced ("power_supply: Add types for USB chargers") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> [ckeepax: For the Arizona changes] Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by: Roger Quadros <rogerq@ti.com>
2015-10-11Linux 4.3-rc5Linus Torvalds1-2/+2
2015-10-11MAINTAINERS: Change Matt Fleming's email addressMatt Fleming1-2/+2
My Intel email address will soon expire. Replace it with my personal address so people still know where to send patches. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1444494136-10333-1-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-10MAINTAINERS: add fpga manager frameworkAlan Tull1-0/+7
Add fpga manager framework to MAINTAINERS and add myself as maintainer. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-10intel_th: Fix integer mismatch warningsAlexander Shishkin1-1/+1
Use unsigned long in place of size_t to operate on buffer sizes and offsets to clean up the 32 bit build. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-10stm class: Mark src::link __rcuAlexander Shishkin2-4/+7
Source device's link is protected with srcu, mark it as such to have proper build-time validation of accesses to this field. The update side that's dereferencing it under an update lock also needs an accessor to dereference this field to keep sparse happy. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-10namei: results of d_is_negative() should be checked after dentry revalidationTrond Myklebust1-2/+6
Leandro Awa writes: "After switching to version 4.1.6, our parallelized and distributed workflows now fail consistently with errors of the form: T34: ./regex.c:39:22: error: config.h: No such file or directory From our 'git bisect' testing, the following commit appears to be the possible cause of the behavior we've been seeing: commit 766c4cbfacd8" Al Viro says: "What happens is that 766c4cbfacd8 got the things subtly wrong. We used to treat d_is_negative() after lookup_fast() as "fall with ENOENT". That was wrong - checking ->d_flags outside of ->d_seq protection is unreliable and failing with hard error on what should've fallen back to non-RCU pathname resolution is a bug. Unfortunately, we'd pulled the test too far up and ran afoul of another kind of staleness. The dentry might have been absolutely stable from the RCU point of view (and we might be on UP, etc), but stale from the remote fs point of view. If ->d_revalidate() returns "it's actually stale", dentry gets thrown away and the original code wouldn't even have looked at its ->d_flags. What we need is to check ->d_flags where 766c4cbfacd8 does (prior to ->d_seq validation) but only use the result in cases where we do not discard this dentry outright" Reported-by: Leandro Awa <lawa@nvidia.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=104911 Fixes: 766c4cbfacd8 ("namei: d_is_negative() should be checked...") Tested-by: Leandro Awa <lawa@nvidia.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-09dm snapshot: add new persistent store option to support overflowMike Snitzer6-18/+37
Commit 76c44f6d80 introduced the possibly for "Overflow" to be reported by the snapshot device's status. Older userspace (e.g. lvm2) does not handle the "Overflow" status response. Fix this incompatibility by requiring newer userspace code, that can cope with "Overflow", request the persistent store with overflow support by using "PO" (Persistent with Overflow) for the snapshot store type. Reported-by: Zdenek Kabelac <zkabelac@redhat.com> Fixes: 76c44f6d80 ("dm snapshot: don't invalidate on-disk image on snapshot write overflow") Reviewed-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-10-09irqdomain: Add an accessor for the of_node fieldMarc Zyngier1-0/+5
As we're about to remove the of_node field from the irqdomain structure, introduce an accessor for it. Subsequent patches will take care of the actual repainting. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1444402211-1141-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-09genirq: Fix handle_bad_irq kerneldoc commentArnd Bergmann1-1/+0
A recent cleanup removed the 'irq' parameter from many functions, but left the documentation for this in place for at least one function. This removes it. Fixes: bd0b9ac405e1 ("genirq: Remove irq argument from irq flow handlers") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: kbuild-all@01.org Cc: Austin Schuh <austin@peloton-tech.com> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/5400000.cD19rmgWjV@wuerfel Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-09genirq: Export handle_bad_irqArnd Bergmann1-0/+1
A cleanup of the omap gpio driver introduced a use of the handle_bad_irq() function in a device driver that can be a loadable module. This broke the ARM allmodconfig build: ERROR: "handle_bad_irq" [drivers/gpio/gpio-omap.ko] undefined! This patch exports the handle_bad_irq symbol in order to allow the use in modules. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Austin Schuh <austin@peloton-tech.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/5847725.4IBopItaOr@wuerfel Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-09dm cache: fix NULL pointer when switching from cleaner policyJoe Thornber1-1/+1
The cleaner policy doesn't make use of the per cache block hint space in the metadata (unlike the other policies). When switching from the cleaner policy to mq or smq a NULL pointer crash (in dm_tm_new_block) was observed. The crash was caused by bugs in dm-cache-metadata.c when trying to skip creation of the hint btree. The minimal fix is to change hint size for the cleaner policy to 4 bytes (only hint size supported). Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2015-10-09crash in md-raid1 and md-raid10 due to incorrect list manipulationMikulas Patocka2-4/+4
The commit 55ce74d4bfe1b9444436264c637f39a152d1e5ac (md/raid1: ensure device failure recorded before write request returns) is causing crash in the LVM2 testsuite test shell/lvchange-raid.sh. For me the crash is 100% reproducible. The reason for the crash is that the newly added code in raid1d moves the list from conf->bio_end_io_list to tmp, then tests if tmp is non-empty and then incorrectly pops the bio from conf->bio_end_io_list (which is empty because the list was alrady moved). Raid-10 has a similar bug. Kernel Fault: Code=15 regs=000000006ccb8640 (Addr=0000000100000000) CPU: 3 PID: 1930 Comm: mdX_raid1 Not tainted 4.2.0-rc5-bisect+ #35 task: 000000006cc1f258 ti: 000000006ccb8000 task.ti: 000000006ccb8000 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001001111111000001111 Not tainted r00-03 000000ff0804fe0f 000000001059d000 000000001059f818 000000007f16be38 r04-07 000000001059d000 000000007f16be08 0000000000200200 0000000000000001 r08-11 000000006ccb8260 000000007b7934d0 0000000000000001 0000000000000000 r12-15 000000004056f320 0000000000000000 0000000000013dd0 0000000000000000 r16-19 00000000f0d00ae0 0000000000000000 0000000000000000 0000000000000001 r20-23 000000000800000f 0000000042200390 0000000000000000 0000000000000000 r24-27 0000000000000001 000000000800000f 000000007f16be08 000000001059d000 r28-31 0000000100000000 000000006ccb8560 000000006ccb8640 0000000000000000 sr00-03 0000000000249800 0000000000000000 0000000000000000 0000000000249800 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001059f61c 000000001059f620 IIR: 0f8010c6 ISR: 0000000000000000 IOR: 0000000100000000 CPU: 3 CR30: 000000006ccb8000 CR31: 0000000000000000 ORIG_R28: 000000001059d000 IAOQ[0]: call_bio_endio+0x34/0x1a8 [raid1] IAOQ[1]: call_bio_endio+0x38/0x1a8 [raid1] RP(r2): raid_end_bio_io+0x88/0x168 [raid1] Backtrace: [<000000001059f818>] raid_end_bio_io+0x88/0x168 [raid1] [<00000000105a4f64>] raid1d+0x144/0x1640 [raid1] [<000000004017fd5c>] kthread+0x144/0x160 Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Fixes: 55ce74d4bfe1 ("md/raid1: ensure device failure recorded before write request returns.") Fixes: 95af587e95aa ("md/raid10: ensure device failure recorded before write request returns.") Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-08cpufreq: prevent lockup on reading scaling_available_frequenciesSrinivas Pandruvada1-1/+3
When scaling_available_frequencies is read on an offlined cpu, then either lockup or junk values are displayed. This is caused by freed freq_table, which policy is using. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-08cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpusSrinivas Pandruvada1-0/+3
When freqdomain_cpus attribute is read from an offlined cpu, it will cause crash. This change prevents calling cpufreq_show_cpus when policy driver_data is NULL. Crash info: [ 170.814949] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 170.814990] IP: [<ffffffff813b2490>] _find_next_bit.part.0+0x10/0x70 [ 170.815021] PGD 227d30067 PUD 229e56067 PMD 0 [ 170.815043] Oops: 0000 [#2] SMP [ 170.816022] CPU: 3 PID: 3121 Comm: cat Tainted: G D OE 4.3.0-rc3+ #33 ... ... [ 170.816657] Call Trace: [ 170.816672] [<ffffffff813b2505>] ? find_next_bit+0x15/0x20 [ 170.816696] [<ffffffff8160e47c>] cpufreq_show_cpus+0x5c/0xd0 [ 170.816722] [<ffffffffa031a409>] show_freqdomain_cpus+0x19/0x20 [acpi_cpufreq] [ 170.816749] [<ffffffff8160e65b>] show+0x3b/0x60 [ 170.816769] [<ffffffff8129b31c>] sysfs_kf_seq_show+0xbc/0x130 [ 170.816793] [<ffffffff81299be3>] kernfs_seq_show+0x23/0x30 [ 170.816816] [<ffffffff81240f2c>] seq_read+0xec/0x390 [ 170.816837] [<ffffffff8129a64a>] kernfs_fop_read+0x10a/0x160 [ 170.816861] [<ffffffff8121d9b7>] __vfs_read+0x37/0x100 [ 170.816883] [<ffffffff813217c0>] ? security_file_permission+0xa0/0xc0 [ 170.816909] [<ffffffff8121e2e3>] vfs_read+0x83/0x130 [ 170.816930] [<ffffffff8121f035>] SyS_read+0x55/0xc0 ... ... [ 170.817185] ---[ end trace bc6eadf82b2b965a ]--- Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: 4.2+ <stable@vger.kernel.org> # 4.2+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-08mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirkludovic.desroches@atmel.com1-0/+1
The Atmel sdhci device needs the SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk. Without it, the internal clock could never stabilised when changing the sd clock frequency. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RSTludovic.desroches@atmel.com2-0/+7
The Atmel sdhci device needs a new quirk. sdhci_set_clock set the Clock Control Register to 0 before computing the new value and writing it. It disables the internal clock which causes a reset mecanism. If we write the new value before this reset mecanism is done, it will prevent the stabilisation of the internal clock, so a delay is needed. This delay is about 2-3 cycles of the base clock. To be safe, a 1 ms delay is used. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08mmc: sdhci-pxav3: fix error handling of armada_38x_quirksMarcin Wojtas1-1/+1
In case of armada_38x_quirks error, all clocks should be cleaned-up, same as after mv_conf_mbus_windows failure. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Cc: <stable@vger.kernel.org> # v4.2 Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08mmc: sdhci-pxav3: disable clock inversion for HS MMC cardsNadav Haklai1-0/+3
According to 'FE-2946959' erratum the clock inversion option is needed to support slow frequencies when the card input hold time requirement is high. This setting is not required for high speed MMC and might cause timing violation. Signed-off-by: Nadav Haklai <nadavh@marvell.com> Cc: <stable@vger.kernel.org> # v4.2 Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driverNadav Haklai1-0/+1
shci-pxav3 driver is enabling by default the SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN quirk. However this quirk is not required for Armada 38x and leads to wrong clock setting in the divider. Signed-off-by: Nadav Haklai <nadavh@marvell.com> Signed-off-by: Marcin Wojtas <mw@semihalf.com> Cc: <stable@vger.kernel.org> # v4.2 Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08arch/powerpc: provide zero_bytemask() for big-endianChris Metcalf1-0/+5
For some reason, only the little-endian flavor of powerpc provided the zero_bytemask() implementation. Reported-by: Michal Sojka <sojkam1@fel.cvut.cz> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-10-08mmc: host: omap_hsmmc: Fix MMC for omap3 legacy bootingTony Lindgren1-3/+3
Starting with commit 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") MMC on omap3 stopped working for legacy booting. This is because legacy booting sets up some of the resource in the platform init code, and for optional regulators always seem to return -EPROBE_DEFER for the legacy booting. Let's fix the issue by checking for device tree based booting for now. Then when omap3 boots in device tree only mode, this patch can be just reverted. Fixes: 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") Cc: Felipe Balbi <balbi@ti.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status"Tony Lindgren1-2/+6
This reverts commit c55d7a0553643a7e8f120688b82b594471084d3c. Without reverting this commit we get "unbalanced disables for pbias_mmc_omap4" errors on omap4430. It seems that 4430 and 4460 behave in a different way for the PBIAS regulator registers and until that has been debugged further we cannot rely on the regulator status registers in hardare on 4430. Fixes: 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") Cc: Felipe Balbi <balbi@ti.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-07swiotlb: Enable it under x86 PAEChristian Melki1-0/+1
Most distributions end up enabling SWIOTLB already with 32-bit kernels due to the combination of CONFIG_HYPERVISOR_GUEST|CONFIG_XEN=y as those end up requiring the SWIOTLB. However for those that are not interested in virtualization and run in 32-bit they will discover that: "32-bit PAE 4.2.0 kernel (no IOMMU code) would hang when writing to my USB disk. The kernel spews million(-ish messages per sec) to syslog, effectively "hanging" userspace with my kernel. Oct 2 14:33:06 voodoochild kernel: [ 223.287447] nommu_map_sg: overflow 25dcac000+1024 of device mask ffffffff Oct 2 14:33:06 voodoochild kernel: [ 223.287448] nommu_map_sg: overflow 25dcac000+1024 of device mask ffffffff Oct 2 14:33:06 voodoochild kernel: [ 223.287449] nommu_map_sg: overflow 25dcac000+1024 of device mask ffffffff ... etc ..." Enabling it makes the problem go away. N.B. With a6dfa128ce5c414ab46b1d690f7a1b8decb8526d "config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected" we also have the important part of the SG macros enabled to make this work properly - in case anybody wants to backport this patch. Reported-and-Tested-by: Christian Melki <christian.melki@t2data.com> Signed-off-by: Christian Melki <christian.melki@t2data.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2015-10-073w-9xxx: don't unmap bounce buffered commandsChristoph Hellwig1-7/+21
3w controller don't dma map small single SGL entry commands but instead bounce buffer them. Add a helper to identify these commands and don't call scsi_dma_unmap for them. Based on an earlier patch from James Bottomley. Fixes: 118c85 ("3w-9xxx: fix command completion race") Reported-by: Tóth Attila <atoth@atoth.sote.hu> Tested-by: Tóth Attila <atoth@atoth.sote.hu> Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-07fpga manager: add driver for socfpga fpga managerAlan Tull3-0/+627
Add driver to fpga manager framework to allow configuration of FPGA in Altera SoCFPGA parts. Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-07add FPGA manager coreAlan Tull6-0/+534
API to support programming FPGA's. The following functions are exported as GPL: * fpga_mgr_buf_load Load fpga from image in buffer * fpga_mgr_firmware_load Request firmware and load it to the FPGA. * fpga_mgr_register * fpga_mgr_unregister FPGA device drivers can be added by calling fpga_mgr_register() to register a set of fpga_manager_ops to do device specific stuff. * of_fpga_mgr_get * fpga_mgr_put Get/put a reference to a fpga manager. The following sysfs files are created: * /sys/class/fpga_manager/<fpga>/name Name of low level driver. * /sys/class/fpga_manager/<fpga>/state State of fpga manager Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>