wireguard-linux/drivers/gpio, branch jd/orphan-parallel

Merge tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2020-10-14T22:56:58Z

Pull MFD updates from Lee Jones: "New Drivers: - Add support for initialising shared (between children) Regmaps - Add support for Kontron SL28CPLD - Add support for ENE KB3930 Embedded Controller - Add support for Intel FPGA PAC MAX 10 BMC New Device Support: - Add support for Power to Ricoh RN5T618 - Add support for UART to Intel Lakefield - Add support for LP87524_Q1 to Texas Instruments LP87565 New Functionality: - Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1 - Use new helper dev_err_probe(); madera-core, stmfx, wcd934x - Use new GPIOD API; dm355evm_msp - Add wake-up capability; sprd-sc27xx-spi - Add ACPI support; kempld-core Fix-ups: - Trivial (spelling/whitespace); Kconfig, ab8500 - Fix for unused variables; khadas-mcu, kempld-core - Remove unused header file(s); mt6360-core - Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic - Add COMPILE_TEST support; asic3, tmio_core - Add dependency on I2C; SL28CPLD Bug Fixes: - Fix memory leak(s); sm501 - Do not free regmap_config's 'name' until exit; syscon" * tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits) mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI mfd: sl28cpld: Depend on I2C mfd: asic3: Build if COMPILE_TEST=y dt-bindings: mfd: Correct interrupt flags in examples mfd: Add ACPI support to Kontron PLD driver mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC mfd: lp87565: Add LP87524-Q1 variant dt-bindings: mfd: Add LP87524-Q1 dt-bindings: mfd: lp87565: Convert to yaml mfd: mt6360: Remove unused include mfd: sm501: Fix leaks in probe() mfd: syscon: Don't free allocated name for regmap_config dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings dt-bindings: mfd: ab8500: Remove weird Unicode characters mfd: sprd: Add wakeup capability for PMIC IRQ mfd: intel-lpss: Add device IDs for UART ports for Lakefield mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table mfd: wcd934x: Simplify with dev_err_probe() mfd: stmfx: Simplify with dev_err_probe() ...

Merge tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2020-10-13T17:09:33Z

Pull GPIO updates from Linus Walleij: "This time very little driver changes but lots of core changes. We have some interesting cooperative work for ARM and Intel alike, making the GPIO subsystem more and more suitable for industrial systems and the like, in addition to the in-kernel users. We touch driver core (device properties) and lib/* by adding one simple string array free function, these are authored by Andy Shevchenko who is a well known and recognized core helpers maintainers so this should be fine. We also see some Android GKI-related modularization in the MXC drivers. Core changes: - The big core change is the updated (v2) userspace character device API. This corrects badly designed 64-bit alignment around the line events. We also add the debounce request feature. This echoes the often quotes passage from Frederick Brooks "The mythical man-month" to always throw one away, which we have seen before in things such as V4L2. So we put in a new one and deprecate and obsolete the old one. - All example tools in tools/gpio/* are migrated to the new API to set a good example. The libgpiod userspace library has been augmented to use this new API pretty much from day 1. - Some misc API hardening by using strn* function calls has been added as well. - Use the simpler IDA interface for GPIO chip instance enumeration. - Add device core function for counting string arrays in device properties. - Provide a generic library function kfree_strarray() that can be used throughout the kernel. Driver enhancements: - The DesignWare dwapb-gpio driver has been enhanced and now uses the IRQ handling in the gpiolib core. - The mockup and aggregator drivers have seen some substantial code clean-up and now use more of the core kernel inftrastructure. - Misc cleanups using dev_err_probe(). - The MXC drivers (Freescale/NXP) can now be built modularized, which makes modularized GKI Android kernels happy" * tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits) gpiolib: Update header block in gpiolib-cdev.h gpiolib: cdev: switch from kstrdup() to kstrndup() docs: gpio: add a new document to its index.rst gpio: pca953x: Add support for the NXP PCAL9554B/C tools: gpio: add debounce support to gpio-event-mon tools: gpio: add multi-line monitoring to gpio-event-mon tools: gpio: port gpio-event-mon to v2 uAPI tools: gpio: port gpio-hammer to v2 uAPI tools: gpio: rename nlines to num_lines tools: gpio: port gpio-watch to v2 uAPI tools: gpio: port lsgpio to v2 uAPI gpio: uapi: document uAPI v1 as deprecated gpiolib: cdev: support setting debounce gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL gpiolib: cdev: support edge detection for uAPI v2 gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL gpiolib: add build option for CDEV v1 ABI gpiolib: make cdev a build option ...

Merge tag 'irq-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-10-12T18:34:32Z

Pull irq updates from Thomas Gleixner: "Updates for the interrupt subsystem: Core: - Allow trimming of interrupt hierarchy to support odd hardware setups where only a subset of the interrupts requires the full hierarchy. - Allow the retrigger mechanism to follow a hierarchy to simplify driver code. - Provide a mechanism to force enable wakeup interrrupts on suspend. - More infrastructure to handle IPIs in the core code Architectures: - Convert ARM/ARM64 IPI handling to utilize the interrupt core code. Drivers: - The usual pile of new interrupt chips (MStar, Actions Owl, TI PRUSS, Designware ICTL) - ARM(64) IPI related conversions - Wakeup support for Qualcom PDC - Prevent hierarchy corruption in the NVIDIA Tegra driver - The usual small fixes, improvements and cleanups all over the place" * tag 'irq-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits) dt-bindings: interrupt-controller: Add MStar interrupt controller irqchip/irq-mst: Add MStar interrupt controller support soc/tegra: pmc: Don't create fake interrupt hierarchy levels soc/tegra: pmc: Allow optional irq parent callbacks gpio: tegra186: Allow optional irq parent callbacks genirq/irqdomain: Allow partial trimming of irq_data hierarchy irqchip/qcom-pdc: Reset PDC interrupts during init irqchip/qcom-pdc: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag pinctrl: qcom: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag genirq/PM: Introduce IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag pinctrl: qcom: Use return value from irq_set_wake() call pinctrl: qcom: Set IRQCHIP_SET_TYPE_MASKED and IRQCHIP_MASK_ON_SUSPEND flags ARM: Handle no IPI being registered in show_ipi_list() MAINTAINERS: Add entries for Actions Semi Owl SIRQ controller irqchip: Add Actions Semi Owl SIRQ controller dt-bindings: interrupt-controller: Add Actions SIRQ controller binding dt-bindings: dw-apb-ictl: Update binding to describe use as primary interrupt controller irqchip/dw-apb-ictl: Add primary interrupt controller support irqchip/dw-apb-ictl: Refactor priot to introducing hierarchical irq domains genirq: Add stub for set_handle_irq() when !GENERIC_IRQ_MULTI_HANDLER ...

gpio: tegra186: Allow optional irq parent callbacks

2020-10-10T11:12:10Z

Make the tegra186 GPIO driver resistent to variable depth interrupt hierarchy, which we are about to introduce. No functionnal change yet. Signed-off-by: Marc Zyngier

gpiolib: Update header block in gpiolib-cdev.h

2020-10-08T20:57:16Z

The dev_t is defined in types.h while struct gpio_device forward declaration is missed. Take into account above and update header block in gpiolib-cdev.h. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20201005095622.73616-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij

gpiolib: cdev: switch from kstrdup() to kstrndup()

2020-10-08T20:57:16Z

Use kstrndup() to copy line labels from the userspace provided char array, rather than ensuring the char array contains a null terminator and using kstrdup(). Note that the length provided to kstrndup() still assumes that the char array does contain a null terminator, so the maximum string length is one less than the array. This is consistent with the previous behaviour. Suggested-by: Andy Shevchenko Signed-off-by: Kent Gibson Link: https://lore.kernel.org/r/20201005070246.20927-1-warthog618@gmail.com Signed-off-by: Linus Walleij

gpio: pca953x: Survive spurious interrupts

2020-10-07T09:47:41Z

The pca953x driver never checks the result of irq_find_mapping(), which returns 0 when no mapping is found. When a spurious interrupt is delivered (which can happen under obscure circumstances), the kernel explodes as it still tries to handle the error code as a real interrupt. Handle this particular case and warn on spurious interrupts. Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20201005140217.1390851-1-maz@kernel.org Signed-off-by: Linus Walleij

gpiolib: Disable compat ->read() code in UML case

2020-10-07T09:42:03Z

It appears that UML (arch/um) has no compat.h header defined and hence can't compile a recently provided piece of code in GPIO library. Disable compat ->read() code in UML case to avoid compilation errors. While at it, use pattern which is already being used in the kernel elsewhere. Fixes: 5ad284ab3a01 ("gpiolib: Fix line event handling in syscall compatible mode") Reported-by: Geert Uytterhoeven Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20201005131044.87276-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij

Merge tag 'gpio-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2020-10-02T16:51:42Z

Pull GPIO fixes from Linus Walleij: "Some late GPIO fixes for the v5.9 series: - Fix compiler warnings on the OMAP when PM is disabled - Clear the interrupt when setting edge sensitivity on the Spreadtrum driver. - Fix up spurious interrupts on the TC35894. - Support threaded interrupts on the Siox controller. - Fix resource leaks on the mockup driver. - Fix line event handling in syscall compatible mode for the character device. - Fix an unitialized variable in the PCA953A driver. - Fix access to all GPIO IRQs on the Aspeed AST2600. - Fix line direction on the AMD FCH driver. - Use the bitmap API instead of compiler intrinsics for bit manipulation in the PCA953x driver" * tag 'gpio-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: pca953x: Correctly initialize registers 6 and 7 for PCA957x gpio: pca953x: Use bitmap API over implicit GCC extension gpio: amd-fch: correct logic of GPIO_LINE_DIRECTION gpio: aspeed: fix ast2600 bank properties gpio/aspeed-sgpio: don't enable all interrupts by default gpio/aspeed-sgpio: enable access to all 80 input & output sgpios gpio: pca953x: Fix uninitialized pending variable gpiolib: Fix line event handling in syscall compatible mode gpio: mockup: fix resource leak in error path gpio: siox: explicitly support only threaded irqs gpio: tc35894: fix up tc35894 interrupt configuration gpio: sprd: Clear interrupt when setting the type as edge gpio: omap: Fix warnings if PM is disabled

gpio: pca953x: Correctly initialize registers 6 and 7 for PCA957x

2020-10-01T08:00:18Z

When driver has been converted to the bitmap API the non-bitmap functions started behaving differently on 32-bit BE architectures since the bytes in two consequent unsigned longs are in different order in comparison to byte array. Hence if the chip had had more than 32 lines the memset() call over it would have not set up upper lines correctly. Although it's currently a theoretical case (no supported chips of this type has 32+ lines), it's better to provide a clean code to avoid people thinking this is okay and potentially producing not fully working things. Fixes: 35d13d94893f ("gpio: pca953x: convert to use bitmap API") Signed-off-by: Andy Shevchenko Reviewed-by: Bartosz Golaszewski Link: https://lore.kernel.org/r/20200930142013.59247-2-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij