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2019-02-17Merge tag 'intel-gpio-v5.1-1' of ↵Linus Walleij3-64/+29
git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel intel-gpio for v5.1-1 Small clean up for Intel PMIC GPIO drivers, includes: - optimizing IRQ handlers by usage of for_each_set_bit() - sorting headers alphabetically for better maintenance - conversion to SPDX identifier The following is an automated git shortlog grouped by driver: crystalcove: - Convert to use SPDX identifier - Sort headers alphabetically - Use for_each_set_bit() in IRQ handler msic: - Convert to use SPDX identifier - Sort headers alphabetically - Remove duplicate check in IRQ handler wcove: - Convert to use SPDX identifier - Fix indentation - Sort headers alphabetically - Allow return negative error code from to_reg()
2019-02-17Merge tag 'gpio-v5.1-updates-for-linus' of ↵Linus Walleij1628-8644/+17387
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel gpio updates for v5.1 - support for a new variant of pca953x - documentation fix from Wolfram - some tegra186 name changes - two minor fixes for madera and altera-a10sr
2019-02-14gpio: altera-a10sr: Trivial coding style fixAxel Lin1-8/+9
Change the coding style to make it does error checking first. This also fixes checkpatch warning about line over 80 characters. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested by: Thor Thayer <thor.thayer@linux.intel.com> Reviewed by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14gpio: tegra186: Use TEGRA186_ prefix for GPIO namesThierry Reding1-35/+35
The new prefix allows the GPIOs to be uniquely identified on a per-chip basis, which makes it easier to distinguish Tegra186 specific GPIOs from those of later chips such as Tegra194 which supports a very different set of GPIOs. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14Documentation: gpio: driver: fix wire name for I2CWolfram Sang1-1/+1
Typo: the data line is called "SDA" not "SCA". Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14gpio: madera: Add missing constCharles Keepax1-1/+1
madera_gpio_chip is only used as a template so it can be marked as const. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14gpio: pca953x: add support for pcal6416 typeThomas Petazzoni1-0/+1
The NXP PCAL6416, documented at [1], is a variant of the PCA GPIO expander with 16 GPIOs, and supporting an interrupt and the "extended" features for interrupt, pull-up/pull-down configuration, etc. [1] https://www.nxp.com/docs/en/data-sheet/PCAL6416A.pdf Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14dt-bindings: gpio: pca953x: document the nxp,pcal6416Thomas Petazzoni1-0/+1
The NXP PCAL6416 is a variant of the PCA GPIO expander, with 16 GPIOs. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14spmi: pmic-arb: select IRQ_DOMAIN_HIERARCHY in KconfigBrian Masney1-1/+1
Select IRQ_DOMAIN_HIERARCHY for pmic-arb in Kconfig since this driver uses the version 2 IRQ interfaces. IRQ_DOMAIN_HIERARCHY selects IRQ_DOMAIN, so it can be removed from here. Signed-off-by: Brian Masney <masneyb@onstation.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-14gpio: pcf857x: Simpify wake-up handlingGeert Uytterhoeven1-14/+1
Unlike gpio_rcar_irq_set_wake(), which this solution was based on, pcf857x_irq_set_wake() does not need to do anything else than calling irq_set_irq_wake() for the upstream interrupt controller. Hence there is no reason for making this call conditional, and no longer a need for keeping a copy of the interrupt number that also serves as a flag. Just propagate irq_set_irq_wake() to the upstream interrupt controller, using the original interrupt number. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-14Merge branch 'ib-pca953x-config' into develLinus Walleij8-18/+127
2019-02-13gpio: sprd: Add missing break in switch statementGustavo A. R. Silva1-0/+1
Fix the following warning by adding a missing break: drivers/gpio/gpio-eic-sprd.c: In function ‘sprd_eic_irq_set_type’: drivers/gpio/gpio-eic-sprd.c:403:3: warning: this statement may fall through [-Wimplicit-fallthrough=] switch (flow_type) { ^~~~~~ drivers/gpio/gpio-eic-sprd.c:435:2: note: here default: ^~~~~~~ This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13gpio: zynq: properly support runtime PM for GPIO used as interruptsThomas Petazzoni1-0/+24
The Zynq GPIO driver currently implements runtime PM by: - Enabling runtime PM support in ->probe() and letting the runtime PM reference counter drop to zero at the end of ->probe(). - Increasing the runtime PM reference counter in ->request() and decreasing it in ->free(). However, the latter is not sufficient: when a GPIO is used as an interrupt, ->request() and ->free() are not called. Due to this, the runtime PM counter remains to zero when the only GPIOs in use are used as interrupts, causing them to simply not work. To address this problem, this commit implement the ->irq_request_resources() and ->irq_release_resources() hooks, ensuring that the runtime PM counter is properly incremented/decremented. Since we override the default hooks, we keep the existing behavior by making sure they call gpiochip_reqres_irq() / gpiochip_relres_irq() respectively. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13qcom: spmi-gpio: Fix boundary conditions IRQ domain translateBjorn Andersson1-1/+2
GPIOs on the SPMI PMIC are numbered 1..ngpio, so the boundary check in pmic_gpio_domain_translate() is off by one, correct this. Fixes: ca69e2d165eb ("qcom: spmi-gpio: add support for hierarchical IRQ chip") Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13gpio: pca953x: add ->set_config implementationThomas Petazzoni1-2/+64
This commit adds a minimal implementation of the ->set_config() hook, with support for the PIN_CONFIG_BIAS_PULL_UP and PIN_CONFIG_BIAS_PULL_DOWN configurations. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13gpio: add core support for pull-up/pull-down configurationThomas Petazzoni5-0/+29
This commit adds support for configuring the pull-up and pull-down resistors available in some GPIO controllers. While configuring pull-up/pull-down is already possible through the pinctrl subsystem, some GPIO controllers, especially simple ones such as GPIO expanders on I2C, don't have any pinmuxing capability and therefore do not use the pinctrl subsystem. This commit implements the GPIO_PULL_UP and GPIO_PULL_DOWN flags, which can be used from the Device Tree, to enable a pull-up or pull-down resistor on a given GPIO. The flag is simply propagated all the way to the core GPIO subsystem, where it is used to call the gpio_chip ->set_config callback with the appropriate existing PIN_CONFIG_BIAS_* values. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13gpio: use new gpio_set_config() helper in more placesThomas Petazzoni1-2/+2
As suggested by Linus Walleij, let's use the new gpio_set_config() helper in gpiod_set_debounce() and gpiod_set_transitory(). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13gpio: rename gpio_set_drive_single_ended() to gpio_set_config()Thomas Petazzoni1-14/+14
This commit simply renames gpio_set_drive_single_ended() to gpio_set_config(), as the function is not specific to setting the GPIO drive type, and will be used for other purposes in followup commits. In addition, it moves the function above gpiod_direction_input(), as it will be used from gpiod_direction_input(). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-13dt-bindings: gpio: document the new pull-up/pull-down flagsThomas Petazzoni2-0/+18
This commit extends the flags that can be used in GPIO specifiers to indicate if a pull-up resistor or pull-down resistor should be enabled. While some pinctrl DT bindings already offer the capability of configuring pull-up/pull-down resistors at the pin level, a number of simple GPIO controllers don't have any pinmuxing capability, and therefore do not rely on the pinctrl DT bindings. Such simple GPIO controllers however sometimes allow to configure pull-up and pull-down resistors on a per-pin basis, and whether such resistors should be enabled or not is a highly board-specific HW characteristic. By using two additional bits of the GPIO flag specifier, we can easily allow the Device Tree to describe which GPIOs should have their pull-up or pull-down resistors enabled. Even though the two options are mutually exclusive, we still need two bits to encode at least three states: no pull-up/pull-down, pull-up, pull-down. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-11Documenation: driver-api: fix gpio/board.rst warningRandy Dunlap1-0/+1
Fix markup warning: insert a blank line before the list. Documentation/driver-api/gpio/board.rst:209: WARNING: Unexpected indentation. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-10Linux 5.0-rc6v5.0-rc6Linus Torvalds1-1/+1
2019-02-10Merge tag 'dmaengine-fix-5.0-rc6' of ↵Linus Torvalds4-76/+53
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: - Fix in at_xdmac fr wrongful channel state - Fix for imx driver for wrong callback invocation - Fix to bcm driver for interrupt race & transaction abort. - Fix in dmatest to abort in mapping error * tag 'dmaengine-fix-5.0-rc6' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: dmatest: Abort test in case of mapping error dmaengine: bcm2835: Fix abort of transactions dmaengine: bcm2835: Fix interrupt race on RT dmaengine: imx-dma: fix wrong callback invoke dmaengine: at_xdmac: Fix wrongfull report of a channel as in use
2019-02-10Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds4-26/+29
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "A handful of fixes: - Fix an MCE corner case bug/crash found via MCE injection testing - Fix 5-level paging boot crash - Fix MCE recovery cache invalidation bug - Fix regression on Xen guests caused by a recent PMD level mremap speedup optimization" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Make set_pmd_at() paravirt aware x86/mm/cpa: Fix set_mce_nospec() x86/boot/compressed/64: Do not corrupt EDX on EFER.LME=1 setting x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out()
2019-02-10Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds3-24/+85
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "irqchip driver fixes: most of them are race fixes for ARM GIC (General Interrupt Controller) variants, but also a fix for the ARM MMP (Marvell PXA168 et al) irqchip affecting OLPC keyboards" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3-its: Fix ITT_entry_size accessor irqchip/mmp: Only touch the PJ4 IRQ & FIQ bits on enable/disable irqchip/gic-v3-its: Gracefully fail on LPI exhaustion irqchip/gic-v3-its: Plug allocation race for devices sharing a DevID irqchip/gic-v4: Fix occasional VLPI drop
2019-02-10Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds14-36/+105
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "A couple of kernel side fixes: - Fix the Intel uncore driver on certain hardware configurations - Fix a CPU hotplug related memory allocation bug - Remove a spurious WARN() ... plus also a handful of perf tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf script python: Add Python3 support to tests/attr.py perf trace: Support multiple "vfs_getname" probes perf symbols: Filter out hidden symbols from labels perf symbols: Add fallback definitions for GELF_ST_VISIBILITY() tools headers uapi: Sync linux/in.h copy from the kernel sources perf clang: Do not use 'return std::move(something)' perf mem/c2c: Fix perf_mem_events to support powerpc perf tests evsel-tp-sched: Fix bitwise operator perf/core: Don't WARN() for impossible ring-buffer sizes perf/x86/intel: Delay memory deallocation until x86_pmu_dead_cpu() perf/x86/intel/uncore: Add Node ID mask
2019-02-10Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds2-17/+52
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: "An rtmutex (PI-futex) deadlock scenario fix, plus a locking documentation fix" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Handle early deadlock return correctly futex: Fix barrier comment
2019-02-10x86/mm: Make set_pmd_at() paravirt awareJuergen Gross1-1/+1
set_pmd_at() calls native_set_pmd() unconditionally on x86. This was fine as long as only huge page entries were written via set_pmd_at(), as Xen pv guests don't support those. Commit 2c91bd4a4e2e53 ("mm: speed up mremap by 20x on large regions") introduced a usage of set_pmd_at() possible on pv guests, leading to failures like: BUG: unable to handle kernel paging request at ffff888023e26778 #PF error: [PROT] [WRITE] RIP: e030:move_page_tables+0x7c1/0xae0 move_vma.isra.3+0xd1/0x2d0 __se_sys_mremap+0x3c6/0x5b0 do_syscall_64+0x49/0x100 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Make set_pmd_at() paravirt aware by just letting it use set_pmd(). Fixes: 2c91bd4a4e2e53 ("mm: speed up mremap by 20x on large regions") Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: xen-devel@lists.xenproject.org Cc: boris.ostrovsky@oracle.com Cc: sstabellini@kernel.org Cc: hpa@zytor.com Cc: bp@alien8.de Cc: torvalds@linux-foundation.org Link: https://lkml.kernel.org/r/20190210074056.11842-1-jgross@suse.com
2019-02-09Merge branch 'i2c/for-current' of ↵Linus Torvalds2-8/+7
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "One PM related driver bugfix and a MAINTAINERS update" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: MAINTAINERS: Update the ocores i2c bus driver maintainer, etc i2c: omap: Use noirq system sleep pm ops to idle device for suspend
2019-02-09Merge tag 'mips_fixes_5.0_3' of ↵Linus Torvalds16-22/+127
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Paul Burton: "A batch of MIPS fixes for 5.0, nothing too scary. - A workaround for a Loongson 3 CPU bug is the biggest change, but still fairly straightforward. It adds extra memory barriers (sync instructions) around atomics to avoid a CPU bug that can break atomicity. - Loongson64 also sees a fix for powering off some systems which would incorrectly reboot rather than waiting for the power down sequence to complete. - We have DT fixes for the Ingenic JZ4740 SoC & the JZ4780-based Ci20 board, and a DT warning fix for the Nexsys4/MIPSfpga board. - The Cavium Octeon platform sees a further fix to the behaviour of the pcie_disable command line argument that was introduced in v3.3. - The VDSO, introduced in v4.4, sees build fixes for configurations of GCC that were built using the --with-fp-32= flag to specify a default 32-bit floating point ABI. - get_frame_info() sees a fix for configurations with CONFIG_KALLSYMS=n, for which it previously always returned an error. - If the MIPS Coherence Manager (CM) reports an error then we'll now clear that error correctly so that the GCR_ERROR_CAUSE register will be updated with information about any future errors" * tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: mips: cm: reprime error cause mips: loongson64: remove unreachable(), fix loongson_poweroff(). MIPS: Remove function size check in get_frame_info() MIPS: Use lower case for addresses in nexys4ddr.dts MIPS: Loongson: Introduce and use loongson_llsc_mb() MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds MIPS: VDSO: Use same -m%-float cflag as the kernel proper MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabled DTS: CI20: Fix bugs in ci20's device tree. MIPS: DTS: jz4740: Correct interrupt number of DMA core
2019-02-09Merge tag 'for-linus-20190209' of git://git.kernel.dk/linux-blockLinus Torvalds10-33/+94
Pull block fixes from Jens Axboe: - NVMe pull request from Christoph, fixing namespace locking when dealing with the effects log, and a rapid add/remove issue (Keith) - blktrace tweak, ensuring requests with -1 sectors are shown (Jan) - link power management quirk for a Smasung SSD (Hans) - m68k nfblock dynamic major number fix (Chengguang) - series fixing blk-iolatency inflight counter issue (Liu) - ensure that we clear ->private when setting up the aio kiocb (Mike) - __find_get_block_slow() rate limit print (Tetsuo) * tag 'for-linus-20190209' of git://git.kernel.dk/linux-block: blk-mq: remove duplicated definition of blk_mq_freeze_queue Blk-iolatency: warn on negative inflight IO counter blk-iolatency: fix IO hang due to negative inflight counter blktrace: Show requests without sector fs: ratelimit __find_get_block_slow() failure message. m68k: set proper major_num when specifying module param major_num libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD nvme-pci: fix rapid add remove sequence nvme: lock NS list changes while handling command effects aio: initialize kiocb private in case any filesystems expect it.
2019-02-09Merge tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtdLinus Torvalds5-33/+34
Pull mtd fixes from Boris Brezillon: - Fix a problem with the imx28 ECC engine - Remove a debug trace introduced in 2b6f0090a333 ("mtd: Check add_mtd_device() ret code") - Make sure partitions of size 0 can be registered - Fix kernel-doc warning in the rawnand core - Fix the error path of spinand_init() (missing manufacturer cleanup in a few places) - Address a problem with the SPI NAND PROGRAM LOAD operation which does not work as expected on some parts. * tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtd: mtd: rawnand: gpmi: fix MX28 bus master lockup problem mtd: Make sure mtd->erasesize is valid even if the partition is of size 0 mtd: Remove a debug trace in mtdpart.c mtd: rawnand: fix kernel-doc warnings mtd: spinand: Fix the error/cleanup path in spinand_init() mtd: spinand: Handle the case where PROGRAM LOAD does not reset the cache
2019-02-09Merge tag 'for-linus-5.0-rc6-tag' of ↵Linus Torvalds2-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Two very minor fixes: one remove of a #include for an unused header and a fix of the xen ML address in MAINTAINERS" * tag 'for-linus-5.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: MAINTAINERS: unify reference to xen-devel list arch/arm/xen: Remove duplicate header
2019-02-09Merge tag 'perf-urgent-for-mingo-5.0-20190205' of ↵Ingo Molnar11-30/+88
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: perf trace: Arnaldo Carvalho de Melo: Fix handling of probe:vfs_getname when the probed routine is inlined in multiple places, fixing the collection of the 'filename' parameter in open syscalls. perf test: Gustavo A. R. Silva: Fix bitwise operator usage in evsel-tp-sched test, which made tat test always detect fields as signed. Jiri Olsa: Filter out hidden symbols from labels, added in systems where the annobin plugin is used, such as RHEL8, which, if left in place make the DWARF unwind 'perf test' to fail on PPC. Tony Jones: Fix 'perf_event_attr' tests when building with python3. perf mem/c2c: Ravi Bangoria: Fix perf_mem_events on PowerPC. tools headers UAPI: Arnaldo Carvalho de Melo: Sync linux/in.h copy from the kernel sources, silencing a perf build warning. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-02-09spmi: pmic-arb: revert "validate type when mapping IRQ"Brian Masney1-14/+7
Validation of the IRQ type was added to spmi pmic-arb, however spmi-mpp in device tree still uses IRQ_TYPE_NONE. This commit caused the spmi-mpp probe to fail since platform_irq_count() would return 0. Correct this by backing out the previous patch. Signed-off-by: Brian Masney <masneyb@onstation.org> Fixes: 135ef21ab064 ("spmi: pmic-arb: validate type when mapping IRQ") Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-09gpio: adp5588.c: Switch to events systemNikolaus Voss1-56/+35
Interupts were generated using GPIN interrupts of ADP5588. These interrupts have two important limitations: 1. Interrupts can only be generated for either rising or falling edges but not both. 2. Interrupts are reasserted as long as the interrupt condition persists (i.e. high or low level on that GPIN). This generates lots of interrupts unless the event is very short. To overcome this, ADP5588 provides an event system which queues up to 10 events in a buffer. GPIN events are queued whenever the GPIN is asserted or deasserted. This makes it possible to support generating GPIN interrupts for both edges and to generate only one interrupt per state change. Thus it is possible to chain the gpio-keys driver for some GPIOs. Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-09gpio: adp5588: Add device tree supportNikolaus Voss1-83/+68
Make platform data optional and add DT id table. Switch to dynamically mapped GPIOs and IRQs if not provided via platform data. Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-09gpio: tqmx86: Drop unnecessary gpiochip_remove in tqmx86_gpio_probe()Wei Yongjun1-3/+1
It's not necessary to remove gpio_chip which added with devm_gpiochip_add_data(). Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-09gpio: Add a Gateworks PLD GPIO driverLinus Walleij3-0/+145
This adds a driver for Gateworks PLD GPIO, that exist in two instances on the Gateworks Cambria GW2358-4 router platform at least. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-08Merge tag 'armsoc-fixes-5.0' of ↵Linus Torvalds46-102/+136
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "This is a bit larger than normal, as we had not managed to send out a pull request before traveling for a week without my signing key. There are multiple code fixes for older bugs, all of which should get backported into stable kernels: - tango: one fix for multiplatform configurations broken on other platforms when tango is enabled - arm_scmi: device unregistration fix - iop32x: fix kernel oops from extraneous __init annotation - pxa: remove a double kfree - fsl qbman: close an interrupt clearing race The rest is the usual collection of smaller fixes for device tree files, on the renesas, allwinner, meson, omap, davinci, qualcomm and imx platforms. Some of these are for compile-time warnings, most are for board specific functionality that fails to work because of incorrect settings" * tag 'armsoc-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits) ARM: tango: Improve ARCH_MULTIPLATFORM compatibility firmware: arm_scmi: provide the mandatory device release callback ARM: iop32x/n2100: fix PCI IRQ mapping arm64: dts: add msm8996 compatible to gicv3 ARM: dts: am335x-shc.dts: fix wrong cd pin level ARM: dts: n900: fix mmc1 card detect gpio polarity ARM: dts: omap3-gta04: Fix graph_port warning ARM: pxa: ssp: unneeded to free devm_ allocated data ARM: dts: r8a7743: Convert to new LVDS DT bindings soc: fsl: qbman: avoid race in clearing QMan interrupt arm64: dts: renesas: r8a77965: Enable DMA for SCIF2 arm64: dts: renesas: r8a7796: Enable DMA for SCIF2 arm64: dts: renesas: r8a774a1: Enable DMA for SCIF2 ARM: dts: da850: fix interrupt numbers for clocksource dt-bindings: imx8mq: Number clocks consecutively arm64: dts: meson: Fix mmc cd-gpios polarity ARM: dts: imx6sx: correct backward compatible of gpt ARM: dts: imx: replace gpio-key,wakeup with wakeup-source property ARM: dts: vf610-bk4: fix incorrect #address-cells for dspi3 ARM: dts: meson8m2: mxiii-plus: mark the SD card detection GPIO active-low ...
2019-02-08Merge tag 'arm64-fixes' of ↵Linus Torvalds2-31/+32
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Two arm64 fixes for -rc6. They resolve a kernel NULL dereference in kexec and bogus kernel page table dumping when userspace is configured for 52-bit virtual addressing. Summary: - Fix kernel oops when attemping kexec_file() with a NULL cmdline - Fix page table output in debugfs when ARM64_USER_VA_BITS_52=y" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: kexec_file: handle empty command-line arm64: ptdump: Don't iterate kernel page tables using PTRS_PER_PXX
2019-02-08Merge tag 'powerpc-5.0-4' of ↵Linus Torvalds3-16/+33
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Just two fixes, both going to stable. - Our support for split pmd page table lock had a bug which could lead to a crash on mremap() when using the Radix MMU (Power9 only). - A fix for the PAPR SCM driver (nvdimm) we added last release, which had a bug where we might mis-handle a hypervisor response leading to us failing to attach the memory region. Thanks to: Aneesh Kumar K.V, Oliver O'Halloran" * tag 'powerpc-5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/papr_scm: Use the correct bind address powerpc/radix: Fix kernel crash with mremap()
2019-02-08Merge branch 'for-linus' of ↵Linus Torvalds2-5/+60
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull signal fixes from Eric Biederman: "This contains four small fixes for signal handling. A missing range check, a regression fix, prioritizing signals we have already started a signal group exit for, and better detection of synchronous signals. The confused decision of which signals to handle failed spectacularly when a timer was pointed at SIGBUS and the stack overflowed. Resulting in an unkillable process in an infinite loop instead of a SIGSEGV and core dump" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: signal: Better detection of synchronous signals signal: Always notice exiting tasks signal: Always attempt to allocate siginfo for SIGSTOP signal: Make siginmask safe when passed a signal of 0
2019-02-08Merge tag 'scsi-fixes' of ↵Linus Torvalds5-10/+21
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of five minor fixes (although, tecnhincally, the aicxxx fix is for a major problem in that the driver won't load without it, but I think the fact it's taken us since 4.10 to discover this indicates that the user base for these things has declined)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: cxlflash: Prevent deadlock when adapter probe fails Revert "scsi: libfc: Add WARN_ON() when deleting rports" scsi: sd_zbc: Fix zone information messages scsi: target: make the pi_prot_format ConfigFS path readable scsi: aic94xx: fix module loading
2019-02-08Merge tag 'iommu-fixes-v5.0-rc5' of ↵Linus Torvalds2-8/+7
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fix from Joerg Roedel: "Intel decided to leave the newly added Scalable Mode Feature default-disabled for now. The patch here accomplishes that" * tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/vt-d: Leave scalable mode default off
2019-02-08Merge tag 'pci-v5.0-fixes-4' of ↵Linus Torvalds1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fix from Bjorn Helgaas: "Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX) that breaks PCIe on I.MX SoCs (Thinh Nguyen)" * tag 'pci-v5.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX)
2019-02-08Merge tag 'acpi-5.0-rc6' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "This prevents excessive ACPI debug messages from being printed to the kernel log, which has started to happen after one of the recent ACPICA commits (Erik Schmauss)" * tag 'acpi-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: Set debug output flags independent of ACPICA
2019-02-08MAINTAINERS: Update the ocores i2c bus driver maintainer, etcAndrew Lunn1-0/+2
The listed maintainer has not been responding to emails for a while. Add myself as a second maintainer. Add the platform data include file, which was not listed. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08blk-mq: remove duplicated definition of blk_mq_freeze_queueLiu Bo1-1/+0
As the prototype has been defined in "include/linux/blk-mq.h", the one in "block/blk-mq.h" can be removed then. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08Blk-iolatency: warn on negative inflight IO counterLiu Bo1-1/+3
This is to catch any unexpected negative value of inflight IO counter. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08blk-iolatency: fix IO hang due to negative inflight counterLiu Bo1-7/+45
Our test reported the following stack, and vmcore showed that ->inflight counter is -1. [ffffc9003fcc38d0] __schedule at ffffffff8173d95d [ffffc9003fcc3958] schedule at ffffffff8173de26 [ffffc9003fcc3970] io_schedule at ffffffff810bb6b6 [ffffc9003fcc3988] blkcg_iolatency_throttle at ffffffff813911cb [ffffc9003fcc3a20] rq_qos_throttle at ffffffff813847f3 [ffffc9003fcc3a48] blk_mq_make_request at ffffffff8137468a [ffffc9003fcc3b08] generic_make_request at ffffffff81368b49 [ffffc9003fcc3b68] submit_bio at ffffffff81368d7d [ffffc9003fcc3bb8] ext4_io_submit at ffffffffa031be00 [ext4] [ffffc9003fcc3c00] ext4_writepages at ffffffffa03163de [ext4] [ffffc9003fcc3d68] do_writepages at ffffffff811c49ae [ffffc9003fcc3d78] __filemap_fdatawrite_range at ffffffff811b6188 [ffffc9003fcc3e30] filemap_write_and_wait_range at ffffffff811b6301 [ffffc9003fcc3e60] ext4_sync_file at ffffffffa030cee8 [ext4] [ffffc9003fcc3ea8] vfs_fsync_range at ffffffff8128594b [ffffc9003fcc3ee8] do_fsync at ffffffff81285abd [ffffc9003fcc3f18] sys_fsync at ffffffff81285d50 [ffffc9003fcc3f28] do_syscall_64 at ffffffff81003c04 [ffffc9003fcc3f50] entry_SYSCALL_64_after_swapgs at ffffffff81742b8e The ->inflight counter may be negative (-1) if 1) blk-iolatency was disabled when the IO was issued, 2) blk-iolatency was enabled before this IO reached its endio, 3) the ->inflight counter is decreased from 0 to -1 in endio() In fact the hang can be easily reproduced by the below script, H=/sys/fs/cgroup/unified/ P=/sys/fs/cgroup/unified/test echo "+io" > $H/cgroup.subtree_control mkdir -p $P echo $$ > $P/cgroup.procs xfs_io -f -d -c "pwrite 0 4k" /dev/sdg echo "`cat /sys/block/sdg/dev` target=1000000" > $P/io.latency xfs_io -f -d -c "pwrite 0 4k" /dev/sdg This fixes the problem by freezing the queue so that while enabling/disabling iolatency, there is no inflight rq running. Note that quiesce_queue is not needed as this only updating iolatency configuration about which dispatching request_queue doesn't care. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 13:23:14 +0000