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2018-09-10gpio: twl4030: Cut down boilerplateLinus Walleij
Use the SPDX header to indicate the license for this driver. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-10gpio: twl4030: Include the right headerLinus Walleij
This is a GPIO driver so include only <linux/gpio/driver.h>. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: zevio: Include the right headerLinus Walleij
This is a driver so include only <linux/gpio/driver.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: ts5500: Delete platform data handlingLinus Walleij
The TS5500 GPIO driver apparently supports platform data without making any use of it whatsoever. Delete this code, last chance to speak up if you think it is needed. Cc: kernel@savoirfairelinux.com Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: ts5500: Use SPDX headerLinus Walleij
Cut some boilerplate, use the SPDX license identifier. Cc: kernel@savoirfairelinux.com Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: ts5500: Include the right headerLinus Walleij
This is a GPIO driver so include only <linux/gpio/driver.h>. Cc: kernel@savoirfairelinux.com Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: mxs: Get rid of external API callLinus Walleij
The MXS driver was calling back into the GPIO API from its irqchip. This is not very elegant, as we are a driver, let's just shortcut back into the gpio_chip .get() function instead. This is a tricky case since the .get() callback is not in this file, instead assigned by bgpio_init(). Calling the function direcly in the gpio_chip is however the lesser evil. Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Janusz Uzycki <j.uzycki@elproma.com.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: tps65xxx: Use SPDX license tagLinus Walleij
I'm tired of boilerplate, use the SPDX tag. Acked-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-04gpio: tpx65xxx: Include the right headerLinus Walleij
These are drivers so include only <linux/gpio/driver.h>. Acked-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-31MAINTAINERS: Add myself as designated reviewer of Intel PMIC GPIOAndy Shevchenko
There are few Intel PMIC GPIO device drivers which I would like to review. Note, Intel MSIC is old system controller that based mostly on PMIC integrated in it. Thus, I included it as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-30gpio: brcmstb: allow 0 width GPIO banksJustin Chen
Sometimes we have empty banks within the GPIO block. This commit allows proper handling of 0 width GPIO banks. We handle 0 width GPIO banks by incrementing the bank and number of GPIOs, but not initializing them. This will mean a call into the non-existent GPIOs will return an error. Also remove "GPIO registered" dev print. This information is misleading since the incremented banks and gpio_base do not reflect the actual GPIOs that get initialized. We leave this information out since it is already printed with dev_dbg. Signed-off-by: Justin Chen <justinpopo6@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-30gpio: ftgpio: Support debounce timerLinus Walleij
The FTGPIO010 has a debounce timer or rather prescaler that will affect interrupts fireing off the block. We can support this to get proper debounce on e.g. keypresses. Since the same prescaler is used across all GPIO lines of the silicon block, we need to bail out if the prescaler is already set and in use by another line. If the prescaler is already set to what we need, fine, we reuse it. This happens more often than not when the same debounce time is set for several GPIO keys, so we support that usecase easily with this code. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-30gpio: ftgpio: Support optional silicon clockLinus Walleij
The GPIO silicon is clocked with a PCLK (peripheral clock) on all systems, however not all platforms model it and include it in e.g. the device tree, so add clock handling but make it optional so we bail out safely if it is e.g. always on. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29Merge branch 'ib-ingenic' of ../linux-pinctrl into develLinus Walleij
2018-08-29gpio: Convert to using %pOFn instead of device_node.nameRob Herring
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: pxa: handle corner case of unprobed deviceRobert Jarzmik
In the corner case where the gpio driver probe fails, for whatever reason, the suspend and resume handlers will still be called as they have to be registered as syscore operations. This applies as well when no probe was called while the driver has been built in the kernel. Nicolas tracked this in : https://bugzilla.kernel.org/show_bug.cgi?id=200905 Therefore, add a failsafe in these function, and test if a proper probe succeeded and the driver is functional. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Reported-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29dt-bindings: gpio: rcar: Add r8a774a1 (RZ/G2M) supportFabrizio Castro
Document Renesas' RZ/G2M (R8A774A1) GPIO blocks compatibility within the relevant dt-bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Include the right headerLinus Walleij
This is a GPIO driver so only include <linux/gpio/driver.h> Cc: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ingenic: Remove driverPaul Cercueil
The pinctrl-ingenic driver is now handling the GPIO chips directly. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Drop dependency on MACH_INGENICPaul Cercueil
Depending on MACH_INGENIC prevent us from creating a generic kernel that works on more than one MIPS board. Instead, we just depend on MIPS being set. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Add support for the JZ4725BPaul Cercueil
Add support for the JZ4725B and compatible SoCs from Ingenic. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Implement .get_direction for GPIO chipsPaul Cercueil
This allows to read from debugfs whether the GPIOs requested are set as input or output. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Merge GPIO functionalityPaul Cercueil
Merge the code of the gpio-ingenic driver into the pinctrl-ingenic driver. The reason behind this, is that the same hardware block handles both pin config / muxing and GPIO. ingenic_gpio_probe() have been marked as __init, but for the most part, the code is the exact same as what it was in the gpio-ingenic driver. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Mark probe function as __initPaul Cercueil
By using platform_driver_probe() instead of platform_driver_register(), we can mark the ingenic_pinctrl_probe() function as __init. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: ingenic: Probe driver at subsys_initcallPaul Cercueil
Using postcore_initcall() makes the driver try to initialize way too early. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29dt-bindings: pinctrl: Update pinctrl-ingenic for JZ4725B and GPIO mergePaul Cercueil
The pinctrl-ingenic driver now supports the JZ4725B SoC. Furthermore, the gpio-ingenic driver was dropped and the pinctrl-ingenic driver is now responsible for providing the GPIO functionality. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29drivers: gpio: Update MODULE AUTHOR email addressMichael Hennerich
no functional changes Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29dt-bindings: gpio: rcar: Add gpio-reserved-ranges supportBiju Das
Update the DT bindings documentation with the optional gpio-reserved-ranges properties. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: rcar: Add GPIO hole supportBiju Das
GPIO hole is present in RZ/G1C SoC. Valid GPIO pins on bank3 are in the range GP3_0 to GP3_16 and GP3_27 to GP3_29. The GPIO pins between GP3_17 to GP3_26 are unused. Add support for handling unused GPIO's. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Switch A and B to use GPIOLIB_IRQCHIPLinus Walleij
We can quite easily switch banks/ports A and B to use GPIOLIB_IRQCHIP which is code that will be more careful about handling interrupt descriptors and use a proper irqdomain for translating the IRQs. This cuts down some code in favor of using the implementation inside gpiolib. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Cut gpio_to_irq() usageLinus Walleij
This removes the callback into the gpiolib creating a circular call to convert between GPIO numbers and IRQs and pushes the whole business into the driver, just using an array of IRQ bases for the three IRQ capable ports. This way we get rid of including <linux/gpio.h> that no driver should include. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Use for_each_set_bit() in IRQ handlerLinus Walleij
This simplifies and standardizes the AB IRQ handler by using the for_each_set_bit() library function. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Use the hwirq and portLinus Walleij
In the IRQ-related functions, switch to using the hwirq and port number found from the current struct gpio_chip * As the lower 3 bits of the IRQ number is identical to the lower 3 bits of the GPIO number we can cut some corners. Call directly into the gpiochip to set up the direction and read the input instead of using the consumer API. This enabled us to cut the confusing irq_to_gpio() macro that is a remnant of the old generic GPIO API as well. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Do not pingpong irq numbersLinus Walleij
For setting debounce config we want to write an offset in a per-gpiochip register, and we know which gpiochip we are on. Instead of a roundtrip over the IRQ number, figure out what port we are on for this GPIO chip, then index to the right register and write the value. This adds the ep93xx_gpio_port() that finds the port index from a struct gpio_chip * that we can later exploit to simplify more code. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Properly call the chained IRQ handlerLinus Walleij
The chained irq handler should call chained_irq_enter() and chained_irq_exit() before/after handling the chained IRQ. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Rename has_debounce to has_irqLinus Walleij
This is closer to what the variable (per bank) actually means. We have the .gpio_to_irq() hook registered only when this is true. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Pass around struct gpio_chipLinus Walleij
Instead of using a global variable, pass around the struct gpio_chip * pointer and dereference to the state container struct ep93xx_gpio as needed, like all other drivers do. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Switch to SPDX license tagLinus Walleij
The subject says it all. Cut down on boilerplate. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: ep93xx: Cut down variable namesLinus Walleij
In order to clean up the driver I need to cut a few trees, sorry, variable names, so I can see the forest, sorry driver properly. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29ARM/gpio: ep93xx: build standaloneArnd Bergmann
As a preparation for multiplatform support, this ensures that the ep93xx gpio driver can be built without any of the platform specific header files. We pass the IRQ numbers as a resource now, and use the virtual mmio base from the already existing resource, rather than relying on the hardwired virtual address from the header file. Some numbers are now hardcoded that came from macros in the past, but for all I can tell, the driver already relied on the specific values. Cc: arm@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: tb10x: Use GENERIC_GPIOLinus Walleij
Instead of open coding logic for reading and writing GPIO lines, use the generic GPIO library. Also switch to using the spinlock from the generic GPIO to protect the registers. Cc: linux-snps-arc@lists.infradead.org Acked-by: Christian Ruppert <christian.ruppert@alitech.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29gpio: tb10x: Create local helper variablesLinus Walleij
Create a local struct device *dev helper variable to make the code easier to read. Most GPIO drivers use "np" (node pointer) rather than "dn" (device node) to point to the device tree node. Let's follow this convention. Cc: linux-snps-arc@lists.infradead.org Acked-by: Christian Ruppert <christian.ruppert@alitech.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-26Linux 4.19-rc1v4.19-rc1Linus Torvalds
2018-08-26Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer update from Thomas Gleixner: "New defines for the compat time* types so they can be shared between 32bit and 64bit builds. Not used yet, but merging them now allows the actual conversions to be merged through different maintainer trees without dependencies We still have compat interfaces for 32bit on 64bit even with the new 2038 safe timespec/val variants because pointer size is different. And for the old style timespec/val interfaces we need yet another 'compat' interface for both 32bit native and 32bit on 64bit" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: y2038: Provide aliases for compat helpers
2018-08-26Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-daxLinus Torvalds
Pull IDA updates from Matthew Wilcox: "A better IDA API: id = ida_alloc(ida, GFP_xxx); ida_free(ida, id); rather than the cumbersome ida_simple_get(), ida_simple_remove(). The new IDA API is similar to ida_simple_get() but better named. The internal restructuring of the IDA code removes the bitmap preallocation nonsense. I hope the net -200 lines of code is convincing" * 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax: (29 commits) ida: Change ida_get_new_above to return the id ida: Remove old API test_ida: check_ida_destroy and check_ida_alloc test_ida: Convert check_ida_conv to new API test_ida: Move ida_check_max test_ida: Move ida_check_leaf idr-test: Convert ida_check_nomem to new API ida: Start new test_ida module target/iscsi: Allocate session IDs from an IDA iscsi target: fix session creation failure handling drm/vmwgfx: Convert to new IDA API dmaengine: Convert to new IDA API ppc: Convert vas ID allocation to new IDA API media: Convert entity ID allocation to new IDA API ppc: Convert mmu context allocation to new IDA API Convert net_namespace to new IDA API cb710: Convert to new IDA API rsxx: Convert to new IDA API osd: Convert to new IDA API sd: Convert to new IDA API ...
2018-08-26Merge tag 'gcc-plugins-v4.19-rc1-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull gcc plugin fix from Kees Cook: "Lift gcc test into Kconfig. This is for better behavior when the kernel is built with Clang, reported by Stefan Agner" * tag 'gcc-plugins-v4.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: gcc-plugins: Disable when building under Clang
2018-08-26Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Thomas Gleixner: "Kernel: - Improve kallsyms coverage - Add x86 entry trampolines to kcore - Fix ARM SPE handling - Correct PPC event post processing Tools: - Make the build system more robust - Small fixes and enhancements all over the place - Update kernel ABI header copies - Preparatory work for converting libtraceevnt to a shared library - License cleanups" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits) tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' tools arch x86: Update tools's copy of cpufeatures.h perf python: Fix pyrf_evlist__read_on_cpu() interface perf mmap: Store real cpu number in 'struct perf_mmap' perf tools: Remove ext from struct kmod_path perf tools: Add gzip_is_compressed function perf tools: Add lzma_is_compressed function perf tools: Add is_compressed callback to compressions array perf tools: Move the temp file processing into decompress_kmodule perf tools: Use compression id in decompress_kmodule() perf tools: Store compression id into struct dso perf tools: Add compression id into 'struct kmod_path' perf tools: Make is_supported_compression() static perf tools: Make decompress_to_file() function static perf tools: Get rid of dso__needs_decompress() call in __open_dso() perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble() perf tools: Get rid of dso__needs_decompress() call in read_object_code() tools lib traceevent: Change to SPDX License format perf llvm: Allow passing options to llc in addition to clang perf parser: Improve error message for PMU address filters ...
2018-08-26Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: - Correct the L1TF fallout on 32bit and the off by one in the 'too much RAM for protection' calculation. - Add a helpful kernel message for the 'too much RAM' case - Unbreak the VDSO in case that the compiler desides to use indirect jumps/calls and emits retpolines which cannot be resolved because the kernel uses its own thunks, which does not work for the VDSO. Make it use the builtin thunks. - Re-export start_thread() which was unexported when the 32/64bit implementation was unified. start_thread() is required by modular binfmt handlers. - Trivial cleanups * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/speculation/l1tf: Suggest what to do on systems with too much RAM x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM x86/kvm/vmx: Remove duplicate l1d flush definitions x86/speculation/l1tf: Fix overflow in l1tf_pfn_limit() on 32bit x86/process: Re-export start_thread() x86/mce: Add notifier_block forward declaration x86/vdso: Fix vDSO build if a retpoline is emitted
2018-08-26Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq update from Thomas Gleixner: "A small set of updats/fixes for the irq subsystem: - Allow GICv3 interrupts to be configured as wake-up sources to enable wakeup from suspend - Make the error handling of the STM32 irqchip init function work - A set of small cleanups and improvements" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3: Allow interrupt to be configured as wake-up sources irqchip/tango: Set irq handler and data in one go dt-bindings: irqchip: renesas-irqc: Document r8a774a1 support irqchip/s3c24xx: Remove unneeded comparison of unsigned long to 0 irqchip/stm32: Fix init error handling irqchip/bcm7038-l1: Hide cpu offline callback when building for !SMP
2018-08-26Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull licking update from Thomas Gleixner: "Mark the switch cases which fall through to the next case with the proper comment so the fallthrough compiler checks can be enabled" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Mark expected switch fall-throughs
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