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2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 111Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify i t under the terms of the gnu general public license as published by th e free software foundation either version 2 of the license or at you r option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091650.375638818@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61Thomas Gleixner3-42/+3
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13Thomas Gleixner2-26/+2
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds1-12/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull IRQ chip updates from Ingo Molnar: "A late irqchips update: - New TI INTR/INTA set of drivers - Rewrite of the stm32mp1-exti driver as a platform driver - Update the IOMMU MSI mapping API to be RT friendly - A number of cleanups and other low impact fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) iommu/dma-iommu: Remove iommu_dma_map_msi_msg() irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg() irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg() irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg() irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg() iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts genirq/msi: Add a new field in msi_desc to store an IOMMU cookie arm64: arch_k3: Enable interrupt controller drivers irqchip/ti-sci-inta: Add msi domain support soc: ti: Add MSI domain bus support for Interrupt Aggregator irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings irqchip/ti-sci-intr: Add support for Interrupt Router driver dt-bindings: irqchip: Introduce TISCI Interrupt router bindings gpio: thunderx: Use the default parent apis for {request,release}_resources genirq: Introduce irq_chip_{request,release}_resource_parent() apis firmware: ti_sci: Add helper apis to manage resources firmware: ti_sci: Add RM mapping table for am654 firmware: ti_sci: Add support for IRQ management firmware: ti_sci: Add support for RM core ops ...
2019-05-16Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds3-0/+488
Pull ARM SoC platform updates from Olof Johansson: "SoC updates, mostly refactorings and cleanups of old legacy platforms. Major themes this release: - Conversion of ixp4xx to a modern platform (drivers, DT, bindings) - Moving some of the ep93xx headers around to get it closer to multiplatform enabled. - Cleanups of Davinci This also contains a few patches that were queued up as fixes before 5.1 but I didn't get sent in before release" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) ARM: debug-ll: add default address for digicolor ARM: u300: regulator: add MODULE_LICENSE() ARM: ep93xx: move private headers out of mach/* ARM: ep93xx: move pinctrl interfaces into include/linux/soc ARM: ep93xx: keypad: stop using mach/platform.h ARM: ep93xx: move network platform data to separate header ARM: stm32: add AMBA support for stm32 family MAINTAINERS: update arch/arm/mach-davinci ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu ARM: dts: Add queue manager and NPE to the IXP4xx DTSI soc: ixp4xx: qmgr: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Remove unused functions soc: ixp4xx: Uninline several functions soc: ixp4xx: npe: Pass addresses as resources ARM: ixp4xx: Turn the QMGR into a platform device ARM: ixp4xx: Turn the NPE into a platform device ...
2019-05-14Merge tag 'mfd-next-5.2' of ↵Linus Torvalds3-0/+198
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Framework: - Document (kerneldoc) core mfd_add_devices() API New Drivers: - Altera SOCFPGA System Manager - Maxim MAX77650/77651 PMIC - Maxim MAX77663 PMIC - ST Multi-Function eXpander (STMFX) New Device Support: - LEDs support in Intel Cherry Trail Whiskey Cove PMIC - RTC support in SAMSUNG Electronics S2MPA01 PMIC - SAM9X60 support in Atmel HLCDC (High-end LCD Controller) - USB X-Powers AXP 8xx PMICs - Integrated Sensor Hub (ISH) in ChromeOS EC - USB PD Logger in ChromeOS EC - AXP223 in X-Powers AXP series PMICs - Power Supply in X-Powers AXP 803 PMICs - Comet Lake in Intel Low Power Subsystem - Fingerprint MCU in ChromeOS EC - Touchpad MCU in ChromeOS EC - Move TI LM3532 support to LED New Functionality: - max77650, max77620: Add/extend DT support - max77620 power-off - syscon clocking - croc_ec host sleep event Fix-ups: - Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs - Remove unused functionality; rk808, da9063-* - SPDX conversion; da9063-*, atmel-*, - Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr - Fix-up DT bindings; ti-lmu, cirrus,lochnagar - Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb Bug Fixes: - Fix incorrect defined values; max77620, da9063 - Fix device initialisation; twl6040 - Reset device on init; intel-lpss - Fix build warnings when !OF; sun6i-prcm - Register OF match tables; tps65912-spi - Fix DMI matching; intel_quark_i2c_gpio" * tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (65 commits) mfd: Use dev_get_drvdata() directly mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device mfd: cros_ec: Instantiate properly CrOS FP MCU device mfd: cros_ec: Update the EC feature codes mfd: intel-lpss: Add Intel Comet Lake PCI IDs mfd: lochnagar: Add links to binding docs for sound and hwmon mfd: ab8500-debugfs: Fix a typo ("deubgfs") mfd: imx6sx: Add MQS register definition for iomuxc gpr dt-bindings: mfd: LMU: Fix lm3632 dt binding example mfd: intel_quark_i2c_gpio: Adjust IOT2000 matching mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L mfd: tps65912-spi: Add missing of table registration mfd: axp20x: Add USB power supply mfd cell to AXP803 mfd: sun6i-prcm: Fix build warning for non-OF configurations mfd: intel-lpss: Set the device in reset state when init platform/chrome: Add support for v1 of host sleep event mfd: cros_ec: Add host_sleep_event_v1 command mfd: cros_ec: Instantiate the CrOS USB PD logger driver mfd: cs47l90: Make DAC_AEC_CONTROL_2 readable mfd: cs47l35: Make DAC_AEC_CONTROL_2 readable ...
2019-05-11Merge tag 'gpio-v5.2-1' of ↵Linus Torvalds46-723/+756
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull gpio updates from Linus Walleij: "This is the bulk of the GPIO changes for the v5.2 kernel cycle. A bit later than usual because I was ironing out my own mistakes. I'm holding some stuff back for the next kernel as a result, and this should be a healthy and well tested batch. Core changes: - The gpiolib MMIO driver has been enhanced to handle two direction registers, i.e. one register to set lines as input and one register to set lines as output. It turns out some silicon engineer thinks the ability to configure a line as input and output at the same time makes sense, this can be debated but includes a lot of analog electronics reasoning, and the registers are there and need to be handled consistently. Unsurprisingly, we enforce the lines to be either inputs or outputs in such schemes. - Send in the proper argument value to .set_config() dispatched to the pin control subsystem. Nobody used it before, now someone does, so fix it to work as expected. - The ACPI gpiolib portions can now handle pin bias setting (pull up or pull down). This has been in the ACPI spec for years and we finally have it properly integrated with Linux GPIOs. It was based on an observation from Andy Schevchenko that Thomas Petazzoni's changes to the core for biasing the PCA950x GPIO expander actually happen to fit hand-in-glove with what the ACPI core needed. Such nice synergies happen sometimes. New drivers: - A new driver for the Mellanox BlueField GPIO controller. This is using 64bit MMIO registers and can configure lines as inputs and outputs at the same time and after improving the MMIO library we handle it just fine. Interesting. - A new IXP4xx proper gpiochip driver with hierarchical interrupts should be coming in from the ARM SoC tree as well. Driver enhancements: - The PCA053x driver handles the CAT9554 GPIO expander. - The PCA053x driver handles the NXP PCAL6416 GPIO expander. - Wake-up support on PCA053x GPIO lines. - OMAP now does a nice asynchronous IRQ handling on wake-ups by letting everything wake up on edges, and this makes runtime PM work as expected too. Misc: - Several cleanups such as devres fixes. - Get rid of some languager comstructs that cause problems when compiling with LLVMs clang. - Documentation review and update" * tag 'gpio-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits) gpio: Update documentation docs: gpio: convert docs to ReST and rename to *.rst gpio: sch: Remove write-only core_base gpio: pxa: Make two symbols static gpiolib: acpi: Respect pin bias setting gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helper gpiolib: acpi: Set pin value, based on bias, more accurately gpiolib: acpi: Change type of dflags gpiolib: Introduce GPIO_LOOKUP_FLAGS_DEFAULT gpiolib: Make use of enum gpio_lookup_flags consistent gpiolib: Indent entry values of enum gpio_lookup_flags gpio: pca953x: add support for pca6416 dt-bindings: gpio: pca953x: document the nxp,pca6416 gpio: pca953x: add pcal6416 to the of_device_id table gpio: gpio-omap: Remove conditional pm_runtime handling for GPIO interrupts gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup tracing: stop making gpio tracing configurable gpio: pca953x: Configure wake-up path when wake-up is enabled gpio: of: Optimize quirk checks gpio: mmio: Drop bgpio_dir_inverted ...
2019-05-08Merge tag 'pinctrl-v5.2-1' of ↵Linus Torvalds2-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "It is pretty calm and chill in pin control for the moment. Just incremental development. There is an odd patch to the Super-H architecture, it's coming from the maintainers so should be fine. Summary: New drivers: - Bitmain BM1880 pin controller - Mediatek MT8516 - Cirrus Logich Lochnagar PMIC pins Updates: - Incremental development on Renesas SH-PFC - Incremental development on Intel pin controller and some particular updates for Cedarfork. - Pin configuration support in Allwinner SunXi drivers - Suspend/resume support in the NXP/Freescale i.MX8MQ driver - Support for more packaging of the ST Micro STM32" * tag 'pinctrl-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits) pinctrl: mcp23s08: Do not complain about unsupported params pinctrl: Rework Kconfig dependency for BM1880 pinctrl driver MAINTAINERS: Add entry for BM1880 pinctrl pinctrl: Add pinctrl support for BM1880 SoC dt-bindings: pinctrl: Add BM1880 pinctrl binding pinctrl: stm32: check irq controller availability at probe pinctrl: mediatek: Add MT8516 Pinctrl driver pinctrl: zte: fix leaked of_node references pinctrl: intel: Increase readability of intel_gpio_update_pad_mode() pinctrl: intel: Retain HOSTSW_OWN for requested gpio pin pinctrl: pistachio: fix leaked of_node references pinctrl: sunxi: Support I/O bias voltage setting on H6 pinctrl: sunxi: Prepare for alternative bias voltage setting methods pinctrl: st: fix leaked of_node references pinctrl: samsung: fix leaked of_node references pinctrl: stm32: align stm32mp157 pin names pinctrl: stm32: add package information for stm32mp157c pinctrl: stm32: introduce package support dt-bindings: pinctrl: stm32: add new entry for package information pinctrl: imx8mq: Add suspend/resume ops ...
2019-05-08gpio: max77650: Add GPIO supportBartosz Golaszewski3-0/+198
Add GPIO support for max77650 mfd device. This PMIC exposes a single GPIO line. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-07Merge tag 'pidfd-v5.2-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull pidfd updates from Christian Brauner: "This patchset makes it possible to retrieve pidfds at process creation time by introducing the new flag CLONE_PIDFD to the clone() system call. Linus originally suggested to implement this as a new flag to clone() instead of making it a separate system call. After a thorough review from Oleg CLONE_PIDFD returns pidfds in the parent_tidptr argument. This means we can give back the associated pid and the pidfd at the same time. Access to process metadata information thus becomes rather trivial. As has been agreed, CLONE_PIDFD creates file descriptors based on anonymous inodes similar to the new mount api. They are made unconditional by this patchset as they are now needed by core kernel code (vfs, pidfd) even more than they already were before (timerfd, signalfd, io_uring, epoll etc.). The core patchset is rather small. The bulky looking changelist is caused by David's very simple changes to Kconfig to make anon inodes unconditional. A pidfd comes with additional information in fdinfo if the kernel supports procfs. The fdinfo file contains the pid of the process in the callers pid namespace in the same format as the procfs status file, i.e. "Pid:\t%d". To remove worries about missing metadata access this patchset comes with a sample/test program that illustrates how a combination of CLONE_PIDFD and pidfd_send_signal() can be used to gain race-free access to process metadata through /proc/<pid>. Further work based on this patchset has been done by Joel. His work makes pidfds pollable. It finished too late for this merge window. I would prefer to have it sitting in linux-next for a while and send it for inclusion during the 5.3 merge window" * tag 'pidfd-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: samples: show race-free pidfd metadata access signal: support CLONE_PIDFD with pidfd_send_signal clone: add CLONE_PIDFD Make anon_inodes unconditional
2019-05-06Merge branches 'acpi-utils', 'acpi-video', 'acpi-soc' and 'acpi-button'Rafael J. Wysocki1-4/+14
* acpi-utils: gpio: merrifield: Fix build err without CONFIG_ACPI ACPI / utils: Remove deprecated function since no user left ASoC: Intel: cht_bsw_rt5672: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: cht_bsw_rt5645: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcr_rt5651: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcr_rt5640: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcht_es8316: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcht_da7213: Convert to use acpi_dev_get_first_match_dev() gpio: merrifield: Convert to use acpi_dev_get_first_match_dev() extcon: axp288: Convert to use acpi_dev_get_first_match_dev() ACPI / utils: Introduce acpi_dev_get_first_match_dev() helper * acpi-video: ACPI: video: Use vendor backlight on Sony VPCEH3U1E * acpi-soc: ACPI / LPSS: Use acpi_lpss_* instead of acpi_subsys_* functions for hibernate * acpi-button: ACPI: button: reinitialize button state upon resume
2019-05-01gpio: thunderx: Use the default parent apis for {request,release}_resourcesLokesh Vutla1-12/+4
thunderx_gpio_irq_{request,release}_resources apis are trying to {request,release} resources on parent interrupt. There are default apis doing the same. Use the default parent apis instead of writing the same code snippet. Cc: linux-gpio@vger.kernel.org Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-04-28Merge tag 'ixp4xx-for-armsoc' of ↵Olof Johansson3-0/+488
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into arm/soc This modernizes the IXP4xx platform and adds initial Device Tree Support. We migrate to MULTI_IRQ_HANDLER, bumps the IRQs to offset 16, converts to SPARSE_IRQ, then we add proper subsystem drivers in each subsystem for irqchip, GPIO and clocksource and switch over to using these new drivers. Next we modernize the NPE and QMGR drivers and push them down into drivers/soc. This has been tested on the IXP4xx NSLU2 and the Gateworks GW2358-4. * tag 'ixp4xx-for-armsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik: (31 commits) ARM: dts: Add queue manager and NPE to the IXP4xx DTSI soc: ixp4xx: qmgr: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Remove unused functions soc: ixp4xx: Uninline several functions soc: ixp4xx: npe: Pass addresses as resources ARM: ixp4xx: Turn the QMGR into a platform device ARM: ixp4xx: Turn the NPE into a platform device ARM: ixp4xx: Move IXP4xx QMGR and NPE headers ARM: ixp4xx: Move NPE and QMGR to drivers/soc ARM: dts: Add some initial IXP4xx device trees ARM: ixp4xx: Add device tree boot support ARM: ixp4xx: Add DT bindings gpio: ixp4xx: Add OF probing support gpio: ixp4xx: Add DT bindings clocksource/drivers/ixp4xx: Add OF initialization support clocksource/drivers/ixp4xx: Add DT bindings ... Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-25gpio: Fix gpiochip_add_data_with_key() error pathGeert Uytterhoeven1-4/+8
The err_remove_chip block is too coarse, and may perform cleanup that must not be done. E.g. if of_gpiochip_add() fails, of_gpiochip_remove() is still called, causing: OF: ERROR: Bad of_node_put() on /soc/gpio@e6050000 CPU: 1 PID: 20 Comm: kworker/1:1 Not tainted 5.1.0-rc2-koelsch+ #407 Hardware name: Generic R-Car Gen2 (Flattened Device Tree) Workqueue: events deferred_probe_work_func [<c020ec74>] (unwind_backtrace) from [<c020ae58>] (show_stack+0x10/0x14) [<c020ae58>] (show_stack) from [<c07c1224>] (dump_stack+0x7c/0x9c) [<c07c1224>] (dump_stack) from [<c07c5a80>] (kobject_put+0x94/0xbc) [<c07c5a80>] (kobject_put) from [<c0470420>] (gpiochip_add_data_with_key+0x8d8/0xa3c) [<c0470420>] (gpiochip_add_data_with_key) from [<c0473738>] (gpio_rcar_probe+0x1d4/0x314) [<c0473738>] (gpio_rcar_probe) from [<c052fca8>] (platform_drv_probe+0x48/0x94) and later, if a GPIO consumer tries to use a GPIO from a failed controller: WARNING: CPU: 0 PID: 1 at lib/refcount.c:156 kobject_get+0x38/0x4c refcount_t: increment on 0; use-after-free. Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.1.0-rc2-koelsch+ #407 Hardware name: Generic R-Car Gen2 (Flattened Device Tree) [<c020ec74>] (unwind_backtrace) from [<c020ae58>] (show_stack+0x10/0x14) [<c020ae58>] (show_stack) from [<c07c1224>] (dump_stack+0x7c/0x9c) [<c07c1224>] (dump_stack) from [<c0221580>] (__warn+0xd0/0xec) [<c0221580>] (__warn) from [<c02215e0>] (warn_slowpath_fmt+0x44/0x6c) [<c02215e0>] (warn_slowpath_fmt) from [<c07c58fc>] (kobject_get+0x38/0x4c) [<c07c58fc>] (kobject_get) from [<c068b3ec>] (of_node_get+0x14/0x1c) [<c068b3ec>] (of_node_get) from [<c0686f24>] (of_find_node_by_phandle+0xc0/0xf0) [<c0686f24>] (of_find_node_by_phandle) from [<c0686fbc>] (of_phandle_iterator_next+0x68/0x154) [<c0686fbc>] (of_phandle_iterator_next) from [<c0687fe4>] (__of_parse_phandle_with_args+0x40/0xd0) [<c0687fe4>] (__of_parse_phandle_with_args) from [<c0688204>] (of_parse_phandle_with_args_map+0x100/0x3ac) [<c0688204>] (of_parse_phandle_with_args_map) from [<c0471240>] (of_get_named_gpiod_flags+0x38/0x380) [<c0471240>] (of_get_named_gpiod_flags) from [<c046f864>] (gpiod_get_from_of_node+0x24/0xd8) [<c046f864>] (gpiod_get_from_of_node) from [<c0470aa4>] (devm_fwnode_get_index_gpiod_from_child+0xa0/0x144) [<c0470aa4>] (devm_fwnode_get_index_gpiod_from_child) from [<c05f425c>] (gpio_keys_probe+0x418/0x7bc) [<c05f425c>] (gpio_keys_probe) from [<c052fca8>] (platform_drv_probe+0x48/0x94) Fix this by splitting the cleanup block, and adding a missing call to gpiochip_irqchip_remove(). Fixes: 28355f81969962cf ("gpio: defer probe if pinctrl cannot be found") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpio: ixp4xx: Add OF probing supportLinus Walleij1-27/+57
This adds device tree probe and registration support for the IXP4xx GPIO driver. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpio: ixp4xx: Add driver for the IXP4xx GPIOLinus Walleij3-0/+458
This adds a driver for the IXP4xx GPIO block found in the Intel XScale IXP4xx systems. The GPIO part of this block is pretty straight-forward and just uses the generic MMIO GPIO library. The irqchip side of this driver is hierarchical where the main irqchip will receive a processed level trigger in response to the edge detector of the GPIO block, so for this reason the v2 version of the irqdomain API is used (as well as in the parent IXP4xx irqchip) and masking, unmasking and setting up the type on IRQ happens on several levels. Currently this GPIO controller will grab the parent irqdomain using a special function, but as the platform move toward device tree probing, this will not be needed: we can just look up the parent irqdomain from the device tree. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpio: sch: Remove write-only core_baseJan Kiszka1-5/+0
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpio: pxa: Make two symbols staticYueHaibing1-2/+2
Fix sparse warnings: drivers/gpio/gpio-pxa.c:580:29: warning: symbol 'pxa_irq_domain_ops' was not declared. Should it be static? drivers/gpio/gpio-pxa.c:819:20: warning: symbol 'pxa_gpio_syscore_ops' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpio: merrifield: Fix build err without CONFIG_ACPIYueHaibing1-1/+1
When building CONFIG_ACPI is not set gcc warn this: drivers/gpio/gpio-merrifield.c: In function mrfld_gpio_get_pinctrl_dev_name: drivers/gpio/gpio-merrifield.c:388:19: error: dereferencing pointer to incomplete type struct acpi_device put_device(&adev->dev); ^~ Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: d00d2109c367 ("gpio: merrifield: Convert to use acpi_dev_get_first_match_dev()") Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-23gpiolib: acpi: Respect pin bias settingAndy Shevchenko2-0/+14
For now, we don't take into account the pin bias settings supplied by ACPI. This change is targeting the mentioned gap. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helperAndy Shevchenko3-6/+19
This helper consolidates all settings of GPIO descriptor lookup flags and quirks in the future if any. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpiolib: acpi: Set pin value, based on bias, more accuratelyAndy Shevchenko1-9/+17
ACPI GpioIo() resource may have different bias settings. For now, we distinguish only PullUp() setting in order to configure the initial state of a pin. Take into consideration the rest of the possible choices as well, i.e. PullDown, PullNone and PullDefault, when configuring the initial state of the pin. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpiolib: acpi: Change type of dflagsAndy Shevchenko1-2/+2
Most of the code inside GPIO library is using enum gpiod_flags. Some of the function still operate with unsigned int. In order to be more consistent and better type checking, convert acpi_gpiochip_parse_own_gpio() to use enum gpiod_flags instead of unsigned int. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpiolib: Introduce GPIO_LOOKUP_FLAGS_DEFAULTAndy Shevchenko3-7/+9
Since GPIO library operates with enumerator when it's subject to handle the GPIO lookup flags, it will be better to clearly see what default means. Thus, introduce GPIO_LOOKUP_FLAGS_DEFAULT entry to describe the default assumptions. While here, replace 0 by newly introduced constant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23gpiolib: Make use of enum gpio_lookup_flags consistentAndy Shevchenko4-23/+24
The library uses enum gpio_lookup_flags to define the possible characteristics of GPIO pin. Since enumerator listed only individual bits the common use of it is in a form of a bitmask of gpio_lookup_flags GPIO_* values. The more correct type for this is unsigned long. Due to above convert all users to use unsigned long instead of enum gpio_lookup_flags except enumerator definition. While here, make field and parameter descriptions consistent as well. Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-19Make anon_inodes unconditionalDavid Howells1-1/+0
Make the anon_inodes facility unconditional so that it can be used by core VFS code and pidfd code. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> [christian@brauner.io: adapt commit message to mention pidfds] Signed-off-by: Christian Brauner <christian@brauner.io>
2019-04-11gpio: eic: sprd: Fix incorrect irq type setting for the sync EICBaolin Wang1-0/+1
When setting sync EIC as IRQ_TYPE_EDGE_BOTH type, we missed to set the SPRD_EIC_SYNC_INTMODE register to 0, which means detecting edge signals. Thus this patch fixes the issue. Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support") Cc: <stable@vger.kernel.org> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-11gpio: pca953x: add support for pca6416Alexandre Belloni1-0/+2
The NXP PCA6416, documented at [1], is a variant of the PCA GPIO expander with 16 GPIOs, and supporting an interrupt. [1] https://www.nxp.com/docs/en/data-sheet/PCA6416A.pdf Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-11gpio: pca953x: add pcal6416 to the of_device_id tableAlexandre Belloni1-0/+1
When adding support for the pcal6416, the of_device_id table was left out, add the proper entry. Fixes: aac1e3c9680b ("gpio: pca953x: add support for pcal6416 type") Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-11gpio: gpio-omap: Remove conditional pm_runtime handling for GPIO interruptsRussell King1-16/+2
Commit b764a5863fd8 ("gpio: omap: Remove custom PM calls and use cpu_pm instead") moved interrupt using GPIO banks to idle with cpu_pm in order to drop the use of pm_runtime_irq_safe() in a later patch. The GPIO banks with no interrupts claimed are still being idled based on PM runtime calls. However this caused a regression for am437x suspend for rtc+ddr idle mode where the device cannot enter idle state as reported by Keerthy <j-keerthy@ti.com>. To fix the issue, we must not fail the pm_runtime callbacks. For GPIO interrupts, we already have irq_chip_pm_get increment the PM runtime use count as pointed out by Grygorii Strashko <grygorii.strashko@ti.com>. So all we need to do is remove the conditional handling in the runtime_suspend and resume functions and let the CPU PM notifier idle the GPIO banks. Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Fixes: b764a5863fd8 ("gpio: omap: Remove custom PM calls and use cpu_pm instead") Reported-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> [tony@atomide.com: updated patch description, dropped runtime count changes] Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Keerthy <j-keerthy@ti.com> Reviewed-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-11gpio: gpio-omap: configure edge detection for level IRQs for idle wakeupRussell King1-79/+11
The GPIO block can enter idle independently of the CPU power management calls via smart-idle. When the GPIO block enters idle, level detection stops working due to clocks being shut off, and an alternative form of edge detection is used. However, this needs the edge detection registers set to mark the appropriate edges. Arrange to configure the edge detection enables along with the level detection to ensure that any transition to active interrupt state that occurs while the block is idle is detected as a wake-up event. Since we enable the edge detection when configuring the IRQ, both omap2_gpio_enable_level_quirk() nor omap2_gpio_disable_level_quirk() become redundant, which also means OMAP_GPIO_QUIRK_IDLE_REMOVE_TRIGGER can be removed. This can be now done without regressions as patch "gpio: gpio-omap: fix level interrupt idling" allows level interrupts to idle on omap4 without a workaround. Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> [tony@atomide.com: update description for the fix dependency] Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08Merge tag 'gpio-v5.2-updates-for-linus-part1' of ↵Linus Walleij9-125/+278
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel gpio: updates for v5.2 (part 1) - batch of improvements for the vf610 driver which shrink the code and make use of resource managed helpers - support for a new variant of pca953x - make gpio-mockup buildable on systems without IOMEM - make gpio-74x164 more flexible by using generic device properties plus minor improvements - new driver for Mellanox BlueField - fixes for wakeup GPIOs in gpio-omap - use devm_platform_ioremap_resource() in gpio-mxc - a couple improvements of kernel docs for ACPI code - don't WARN() in gpiod_put() on optional GPIOs
2019-04-08gpio: pca953x: Configure wake-up path when wake-up is enabledGeert Uytterhoeven1-5/+16
If a device is part of the wake-up path, it should indicate this by setting its power.wakeup_path field. This allows the genpd core code to keep the device enabled during system suspend when needed. As regulators powering devices are not handled by genpd, the driver handles these itself, and thus must skip regulator control when the device is part of the wake-up path. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08gpio: of: Optimize quirk checksGeert Uytterhoeven1-6/+5
Simple string comparisons are cheaper than DT lookups, as the latter involve taking a spinlock and traversing properties. Hence optimize quirk checks by postponing DT lookups after string comparisons. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08Merge tag 'v5.1-rc3' into develLinus Walleij6-16/+25
Linux 5.1-rc3
2019-04-08gpiolib: devprop: Fix syntax errorLinus Walleij1-2/+2
EXPORT_SYMBOL_GPL() needs a semicolon at the end, also explicitly include <linux/export.h> as well. Fixes: 64ebde5b0fdb ("gpiolib: export devprop_gpiochip_set_names()") Acked-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08gpio: mmio: Drop bgpio_dir_invertedLinus Walleij1-7/+0
The direction inversion semantics are now handled by simply using the registers for in/out available, no need to keep track of inversion semantics exmplicitly anymore. Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Jan Kotas <jank@cadence.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08gpio: mlxbf: remove unused including <linux/version.h>YueHaibing1-1/+0
Remove including <linux/version.h> that don't need it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-04-05gpio: mmio: Fix bgpio_get_set & bgpio_get_set_multipleJan Kotas1-19/+2
During my regression testing I noticed the cadence GPIO driver fails on the latest gpio for-next tree. I think the reason is this patch: commit 96cd559817f2 ("Merge branch 'devel' into for-next") Here is a part of the test log: Loopback 8 -> 24 TESTING: gpio: 488: output direction PASSED TESTING: gpio: 504: input direction PASSED TESTING: gpio: 488: 0 PASSED TESTING: gpio: 488 -> 504: 0 PASSED TESTING: gpio: 488: 1 FAILED TESTING: gpio: 488 -> 504: 1 FAILED TESTING: gpio: 488: 0 PASSED TESTING: gpio: 488 -> 504: 0 PASSED It looks like the issue is that gc->bgpio_dir has changed its meaning. It used to be set to the register value (so it was being inverted). Now it's always set to 1 for output and 0 for input. However the bgpio_get_set functions were not updated. So they invert the bit again, which means a wrong register is being accessed. This patch fixes that by removing the unnecessary inversion. Signed-off-by: Jan Kotas <jank@cadence.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05gpio: Set proper argument value to set_configMaxime Ripard1-1/+13
The gpio_set_config function creates a pinconf configuration for a given pinc_config_param. However, it always uses an arg of 0, which might not be a valid argument for a given param. A good example of that would be the bias parameters, where 0 means that the pull up or down resistor is null, and the pin is directly connected to VCC/GND. The framework uses in some other places the value 1 as a default argument to enable the pull resistor, so let's use the same one here. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05gpio: omap: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Acked-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05gpio: omap: avoid clang warningArnd Bergmann1-278/+263
clang warns about a tentative array definition in the gpio-omap driver: drivers/gpio/gpio-omap.c:1282:34: error: tentative array definition assumed to have one element [-Werror] static const struct of_device_id omap_gpio_match[]; It's best to just reorder the entire file to avoid forward declarations, which lets us use the regular declaration. To do this, the unnecessary CONFIG_OF check must also be removed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05gpio: zynq: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: xlp: devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-6/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: zx: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: xgene-sb: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: vf610: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-5/+2
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: uniphier: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-05drivers: gpio: ts4800: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>