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* gpio: brcmstb: Add interrupt and wakeup source supportGregory Fong2015-08-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Uses the gpiolib irqchip helpers. For this to work, the irq setup function is called once per bank instead of once per device. Note that all known uses of this block have a BCM7120 L2 interrupt controller as a parent. Supports interrupts for all GPIOs. In the IRQ handler, we check for raised IRQs for invalid GPIOs and warn (ratelimited) if they're encountered. Also, several drivers (e.g. gpio-keys) allow for GPIOs to be configured as wakeup sources, and this GPIO controller supports that through a separate interrupt path. The de-facto standard DT property "wakeup-source" is checked, since that indicates whether the GPIO controller hardware can wake. Uses the IRQCHIP_MASK_ON_SUSPEND irq_chip flag because UPG GIO doesn't have any of its own wakeup source configuration. Aside regarding gpiolib irqchip helpers: It wasn't obvious (to me) that you can have multiple chained irqchips and associated IRQ domains for a single parent IRQ, and as long as the xlate function is written correctly, a GPIO IRQ request end up checking the correct domain and will get associated with the correct IRQ. What helps make this clear is to read drivers/gpio/gpiolib-of.c: - of_gpiochip_find_and_xlate() - of_get_named_gpiod_flags() drivers/gpio/gpiolib.c: - gpiochip_find() Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: etraxfs: add interrupt supportRabin Vincent2015-08-031-0/+1
| | | | | | | | | | | | | On ETRAX FS, all pins on the first port (and only the first port) have interrupt support. On ARTPEC-3, all pins on all ports have interrupt support. However, there are only eight interrupts. Each of the interrupts is associated with a group of pins and for each interrupt the one pin from the group which will trigger it can be selected. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: zx: Add ZTE zx296702 GPIO supportJun Nie2015-07-161-0/+6
| | | | | | | | Add ZTE zx296702 GPIO controller support Signed-off-by: Jun Nie <jun.nie@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: mvebu: kill bogus dependency on GPIO_GENERICMasahiro Yamada2015-07-161-1/+0
| | | | | | | | | The driver gpio-mvebu.c does not depend on gpio-generic.c at all. Drop unneeded "select GPIO_GENERIC". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: altera: kill bogus dependency on GPIO_GENERICMasahiro Yamada2015-07-161-1/+0
| | | | | | | | | The driver gpio-altera.c does not depend on gpio-generic.c at all. Drop unneeded "select GPIO_GENERIC". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Tien Hock Loh <thloh@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Added support to Zynq Ultrascale+ MPSoCAnurag Kumar Vulisha2015-06-101-1/+1
| | | | | | | | | Added support to Zynq Ultrascale+ MPSoC on the existing zynq gpio driver. Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: add ETRAXFS GPIO driverRabin Vincent2015-06-101-0/+8
| | | | | | | Add a GPIO driver for the General I/O block on Axis ETRAX FS SoCs. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Add GPIO support for Broadcom STB SoCsGregory Fong2015-06-021-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for the GPIO IP "UPG GIO" used on Broadcom STB SoCs (BCM7XXX and some others). Uses basic_mmio_gpio to instantiate a gpio_chip for each bank. The driver assumes that it handles the base set of GPIOs on the system and that it can start its numbering sequence from 0, so any GPIO expanders used with it must dynamically assign GPIO numbers after this driver has finished registering its GPIOs. Does not implement the interrupt-controller portion yet, will be done in a future commit. v2: - change include to use <linux/gpio/driver.h> instead of <linux/gpio.h> - get rid of unnecessary imask member in struct bank - rename GPIO_PER_BANK -> MAX_GPIO_PER_BANK - always have 32 GPIOs per bank and add 'width' member in struct bank to hold actual number of GPIOs in use - mark of_match table as const List-usage-fixed-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: xlp: GPIO controller for Netlogic XLP SoCsKamlakant Patel2015-05-061-0/+11
| | | | | | | | | | Add GPIO controller driver for Netlogic XLP MIPS64 SOCs. This driver is instantiated by device tree and supports interrupts for GPIOs. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: omap: Allow building as a loadable moduleTony Lindgren2015-05-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently get all kinds of errors building the omap gpio driver as a module starting with: undefined reference to `omap2_gpio_resume_after_idle' undefined reference to `omap2_gpio_prepare_for_idle' ... Let's fix the issue by adding inline functions to the header. Note that we can now also remove the two unused functions for omap_set_gpio_debounce and omap_set_gpio_debounce_time. Then doing rmmod on the module produces further warnings because of missing exit related functions. Let's add those. And finally, we can make the Kconfig entry just a tristate option that's selected for omaps. Cc: Javier Martinez Canillas <javier@dowhile0.org> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@linaro.org> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: add lpc18xx gpio driverJoachim Eastwood2015-05-051-0/+8
| | | | | | | Driver for the GPIO block found on NXP LPC18xx/43xx devices. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'armsoc-cleanup' of ↵Linus Torvalds2015-04-221-8/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "We've got a fairly large cleanup branch this time. The bulk of this is removal of non-DT platforms of several flavors: - Atmel at91 platforms go full-DT, with removal of remaining board-file based support - OMAP removes legacy board files for three more platforms - removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom - Freescale i.MX25 also removes non-DT platform support" Most of the rest of the changes here are fallout from the above, i.e. for example removal of drivers that now lack platforms, etc. * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits) mmc: Remove msm_sdcc driver gpio: Remove gpio-msm-v1 driver ARM: Remove mach-msm and associated ARM architecture code ARM: shmobile: cpuidle: Remove the pointless default driver ARM: davinci: dm646x: Add interrupt resource for McASPs ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x ARM: davinci: dm646x: Clean up the McASP DMA resources ARM: davinci: devices-da8xx: Add support for McASP2 on da830 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request ARM: OMAP2+: Remove legacy support for omap3 TouchBook ARM: OMAP3: Remove legacy support for devkit8000 ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board ARM: shmobile: Consolidate the pm code for R-Car Gen2 ARM: shmobile: r8a7791: Correct SYSCIER value ARM: shmobile: r8a7790: Correct SYSCIER value ARM: at91: remove old setup ARM: at91: sama5d4: remove useless map_io ARM: at91: sama5 use SoC detection infrastructure ...
| * gpio: Remove gpio-msm-v1 driverStephen Boyd2015-03-271-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver is orphaned now that mach-msm has been removed. Delete it. Cc: David Brown <davidb@codeaurora.org> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
* | Merge tag 'gpio-v4.1-1' of ↵Linus Torvalds2015-04-181-348/+376
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.1 development cycle: - A new GPIO hogging mechanism has been added. This can be used on boards that want to drive some GPIO line high, low, or set it as input on boot and then never touch it again. For some embedded systems this is bliss and simplifies things to a great extent. - Some API cleanup and closure: gpiod_get_array() and gpiod_put_array() has been added to get and put GPIOs in bulk as was possible with the non-descriptor API. - Encapsulate cross-calls to the pin control subsystem in <linux/gpio/driver.h>. Now this should be the only header any GPIO driver needs to include or something is wrong. Cleanups restricting drivers to this include are welcomed if tested. - Sort the GPIO Kconfig and split it into submenus, as it was becoming and unstructured, illogical and unnavigatable mess. I hope this is easier to follow. Menus that require a certain subsystem like I2C can now be hidden nicely for example, still working on others. - New drivers: - New driver for the Altera Soft GPIO. - The F7188x driver now handles the F71869 and F71869A variants. - The MIPS Loongson driver has been moved to drivers/gpio for consolidation and cleanup. - Cleanups: - The MAX732x is converted to use the GPIOLIB_IRQCHIP infrastructure. - The PCF857x is converted to use the GPIOLIB_IRQCHIP infrastructure. - Radical cleanup of the OMAP driver. - Misc: - Enable the DWAPB GPIO for all architectures. This is a "hard IP" block from Synopsys which has started to turn up in so diverse architectures as X86 Quark, ARC and a slew of ARM systems. So even though it's not an expander, it's generic enough to be available for all. - We add a mock GPIO on Crystalcove PMIC after a long discussion with Daniel Vetter et al, tracing back to the shootout at the kernel summit where DRM drivers and sub-componentization was discussed. In this case a mock GPIO is assumed to be the best compromise gaining some reuse of infrastructure without making DRM drivers overly complex at the same time. Let's see" * tag 'gpio-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (62 commits) Revert "gpio: sch: use uapi/linux/pci_ids.h directly" gpio: dwapb: remove dependencies gpio: dwapb: enable for ARC gpio: removing kfree remove functionality gpio: mvebu: Fix mask/unmask managment per irq chip type gpio: split GPIO drivers in submenus gpio: move MFD GPIO drivers under their own comment gpio: move BCM Kona Kconfig option gpio: arrange SPI Kconfig symbols alphabetically gpio: arrange PCI GPIO controllers alphabetically gpio: arrange I2C Kconfig symbols alphabetically gpio: arrange Kconfig symbols alphabetically gpio: ich: Implement get_direction function gpio: use (!foo) instead of (foo == NULL) gpio: arizona: drop owner assignment from platform_drivers gpio: max7300: remove 'ret' variable gpio: use devm_kzalloc gpio: sch: use uapi/linux/pci_ids.h directly gpio: x-gene: fix devm_ioremap_resource() check gpio: loongson: Add Loongson-3A/3B GPIO driver support ...
| * | gpio: dwapb: remove dependenciesLinus Walleij2015-04-091-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Synopsys DesignWare DWAPB GPIO block is popular to synthesize amongst many architectures: X86, ARM, ARC. The driver was restricted to only these archs due to using [read|write]l_relaxed() accessors that were not universally available in the past, but as of commit 9439eb3ab9d1ece6e4ad7baaa4a7f534f9b9dab0 "asm-generic: io: implement relaxed accessor macros as conditional wrappers" these accessors are available on all archs so this should not be a problem any more. Enable the driver for all archs. Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: dwapb: enable for ARCVineet Gupta2015-04-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Synopsys SDP platform uses DW GPIO controller in design with ARC cores. So adding ARC to architectures that may select this GPIO controller. Even though support for Synopsys SDP is yet to be submitted we'll need this tiny option enabled at least for properly working interrupts (DW GPIO controller is used as interrupt controller). Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: split GPIO drivers in submenusLinus Walleij2015-04-081-6/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create Kconfig submenus for memory mapped, I2C, MFD, PCI, SPI and USB GPIO drivers to help navigate the forest of drivers in this subsystem. The I2C, SPI and USB menus get dependencies so we don't have to see them unless we have the required subsystem enabled in the first place. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: move MFD GPIO drivers under their own commentLinus Walleij2015-04-081-159/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of AC97, MODULbus and other weird subheadings for GPIO drivers. Move all MFD drivers out of I2C etc and in under the MFD comment. This is too weird as it is and makes no sense, if the dependent parent driver is MFD, group these as MFD GPIO drivers. Alphabetize and move this comment group inbetween "I2C" and "PCI" to also have the groups in alphabetic order. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: move BCM Kona Kconfig optionLinus Walleij2015-04-081-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | Move the Kconfig option for the Broadcom BCM Kona up to the commin GPIO controllers, as it is currently grouped under MODULbus expanders which it definately is not. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: arrange SPI Kconfig symbols alphabeticallyLinus Walleij2015-04-081-8/+8
| | | | | | | | | | | | | | | | | | | | | Rearrange the SPI GPIO expanders in alphabetic order as already indicated by the comment in the file. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: arrange PCI GPIO controllers alphabeticallyLinus Walleij2015-04-081-32/+32
| | | | | | | | | | | | | | | | | | | | | Rearrange PCI GPIO controllers in alphabetic order as already indicated by the comment in the file. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: arrange I2C Kconfig symbols alphabeticallyLinus Walleij2015-04-081-45/+45
| | | | | | | | | | | | | | | | | | | | | Rearrange the I2C GPIO expanders in alphabetic order as already indicated by the comment in the file. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: arrange Kconfig symbols alphabeticallyLinus Walleij2015-04-081-145/+145
| | | | | | | | | | | | | | | | | | | | | | | | This rearranges the GPIO drivers Kconfig symbols alphabetically as the top comment in the file already states they should be. No functional changes whatsoever. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: loongson: Add Loongson-3A/3B GPIO driver supportHuacai Chen2015-04-081-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve Loongson-2's GPIO driver to support Loongson-3A/3B, and update Loongson-3's default config file. Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Huacai Chen <chenhc@lemote.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | MIPS: Move Loongson GPIO driver to drivers/gpioHuacai Chen2015-04-071-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Move Loongson-2's GPIO driver to drivers/gpio and add Kconfig options. Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Huacai Chen <chenhc@lemote.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: dwapb: enable for QuarkAndy Shevchenko2015-03-191-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Intel Quark SoC contains the DW GPIO on board. While fixing the build error the commit 1972c97db5b0 (gpio: dwapb: fix compile errors) disables the possibility to build the driver on X86, i.e. Intel Quark. The patch reenables it for Intel Quark as well. Since we have Intel Quark SoC introduced in 4.0-rc1 I would like to make this fix available there as well, though the actual MFD driver [1] is applied only for next version. [1] https://lkml.org/lkml/2015/2/1/217 Fixes: 1972c97db5b0 (gpio: dwapb: fix compile errors) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: f7188x: add GPIO support for F71869AAndreas Bofjall2015-03-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the GPIOs found on the Fintek SuperI/O chip F71869A, such as the one found on the Jetway JNF99-525 motherboard, to the f7188x gpio driver. Signed-off-by: Andreas Bofjall <andreas@gazonk.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: f7188x: add GPIO support for F71869Andreas Bofjall2015-03-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the GPIOs found on the Fintek SuperI/O chip F71869, such as the one found on the Jetway NF96u-525 motherboard, to the f7188x gpio driver. Signed-off-by: Andreas Bofjall <andreas@gazonk.org> Tested-by: Les Schaffer <schaffer@optonline.net> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: dwapb: re-enable GPIO_DWAPB for arm64Kefeng Wang2015-03-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Hisilicon arm64 soc uses designWare gpio, re-enable it after commit 1972c97db5b(gpio: dwapb: fix compile errors). Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | drivers/gpio: Altera soft IP GPIO driverTien Hock Loh2015-03-071-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds a new driver for Altera soft GPIO IP. The driver is able to do read/write and allows GPIO to be a interrupt controller. Tested on Altera GHRD on interrupt handling and IO. v10: - Updated conflicting device tree parameters - Removed unused headers - Used macro instead of magic numbers for ngpio - Code readability cleanup using ?: and temporal variables - Removed leftover garbage and unnecessary function calls - Checked bgpio_init but unusable because Altera GPIO may not be a multiple of 8 bits v9: - Removed duplicated initialization on set_type using temporals to improve code readability in calling generic_handle_irq - Using ?: ternary to reduce code size v8: - Using for_each_set_bit - Added const for struct definition - Removed naggy pr_err - Sort alpha header - Remove unused macros - Use fixed width data types instead of unsigned long - Whitespace issue fixes - Removed _relaxed function for better compatibility across different CPU - Changed irq_create_mapping to platform_get_irq updated implementation to use gpiochip_irqchip_add - Reserve interrupt-cells number 2 in device tree binding for future use - Remove confusing sections on devicetree bindings - Added tristate Kconfig help text v7: - Used dev_warn instead of pr_warn - Clean up unnecesarry if else indentation v6: - Added irq_startup and irq_shutdown - Changed bitwise clamping style - Cleanup bitwise operation to improve readability change naming of mapped irqs from virq to mapped_irq v5: - Dispose irq_domain mapping correctly - Update optional binding description in binding docs v4: - Added vendor prefix to devicetree binding for IP specific properties using MMIO GPIO helper library instead of manually map PIO to memory - altera_gpio_chip inline struct documentation to kerneldoc - Using dev_ print to print a better failure message v2, v3: - Do not reference NO_IRQ - Updated irq_set_type to only allow the hardware configured irq type Signed-off-by: Tien Hock Loh <thloh@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: pcf857x: Switch to use gpiolib irqchip helpersGeert Uytterhoeven2015-03-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch the PCF857x GPIO driver to use the gpiolib irqchip helpers. This driver uses a nested threaded interrupt, hence handle_nested_irq() and gpiochip_set_chained_irqchip() must be used. Note that this removes the checks added in commit 21fd3cd1874a2ac8 ("gpio: pcf857x: call the gpio user handler iff gpio_to_irq is done"), as the interrupt mappings are no longer created on-demand by the driver, but by gpiochip_irqchip_add() during initialization. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: max732x: convert to GPIOLIB_IRQCHIPLinus Walleij2015-03-021-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Take a sweep to bring the irq support for the MAX732x expanders into the gpiolib core to cut down on duplicated code. Only compile tested! I need some feedback from people using this expander with interrupts to tell me if things go right or wrong when I do this. Cc: Semen Protsenko <semen.protsenko@globallogic.com> Cc: Mans Rullgard <mans@mansr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* / mfd: tc3589x: Enforce device-tree only modeLinus Walleij2015-03-261-0/+1
|/ | | | | | | | | All systems using the TC3589x multifunction expander uses devicetree, so don't clutter the place with a lot of and assume it is there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* gpio: kconfig: replace PPC_OF with PPCKevin Hao2015-02-041-1/+1
| | | | | | | | | | | The PPC_OF is a ppc specific option which is used to mean that the firmware device tree access functions are available. Since all the ppc platforms have a device tree, it is aways set to 'y' for ppc. So it makes no sense to keep a such option in the current kernel. Replace it with PPC. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Add Fujitsu MB86S7x GPIO driverJassi Brar2015-01-201-0/+6
| | | | | | | | | | Driver for Fujitsu MB86S7x SoCs that have a memory mapped GPIO controller. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Andy Green <andy.green@linaro.org> Signed-off-by: Vincent Yang <Vincent.Yang@tw.fujitsu.com> Signed-off-by: Tetsuya Nuriya <nuriya.tetsuya@jp.fujitsu.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: stmpe: enforce device tree only modeLinus Walleij2015-01-201-0/+1
| | | | | | | Require that device tree be used with STMPE (all platforms use this) and enforce OF_GPIO, then delete the platform data. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Add APM X-Gene standby GPIO controller driverY Vo2015-01-201-0/+8
| | | | | | | Driver for standby GPIO controller of APM X-Gene SoCs on arm64. Signed-off-by: Y Vo <yvo@apm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: ge: convert to use basic mmio gpio libraryKamlakant Patel2015-01-161-0/+1
| | | | | | | | | This patch converts GE GPIO driver to use basic_mmio_gpio generic library. Signed-off-by: Kamlakant Patel <kamlakant.patel@linaro.org> Acked-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: max732x: Rewrite IRQ code to use irq_domain APISemen Protsenko2015-01-151-0/+1
| | | | | Signed-off-by: Semen Protsenko <semen.protsenko@globallogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio/Kconfig: Fix X86 arch nameRicardo Ribalda Delgado2015-01-151-1/+1
| | | | | | | | | X86 Kconfig symbol is X86, not ARCH_X86. Fixes: c586b3075d5b47d8 (gpio/xilinx: Add support for X86 Arch) Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: rcar: Switch to use gpiolib irqchip helpersGeert Uytterhoeven2015-01-151-0/+1
| | | | | | | | | | Switch the R-Car Gen2 GPIO driver to use the gpiolib irqchip helpers. While doing this also make sure that gpiochip_irqchip_add() is called after the gpiochip itself is registered, as required. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio/xilinx: Add support for X86 ArchRicardo Ribalda Delgado2015-01-151-2/+2
| | | | | | | | | Core can be accessed via PCIe on X86 platform. This patch also allows the driver to be used as module. Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: sch: Add support for Intel Quark X1000 SoCChang Rebecca Swee Fun2015-01-151-2/+9
| | | | | | | | | | | | | | | | | Intel Quark X1000 provides a total of 16 GPIOs. The GPIOs are split between the legacy I/O bridge and the GPIO controller. GPIO-SCH is the GPIO pins on legacy bridge for Intel Quark SoC. Intel Quark X1000 has 2 GPIOs powered by the core power well and 6 from the suspend power well. This piece of work is derived from Dan O'Donovan's initial work for Quark X1000 enabling. Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: sx150x: move to irqdomain framework for sx150x driverWei Chen2015-01-151-0/+1
| | | | | | | | | | | | | The sx150x gpio driver used a loop to set liner irq map for gpio pins. Now we use the irq domain to rebuild this irq mappig and make sure the codes are still compatible to old users. this patch also adds IRQF_ONESHOT flag to fix the IRQ flooding issues. Signed-off-by: Wei Chen <Wei.Chen@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> [Make Kconfig select GPIOLIB_IRQCHIP] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: moxart: convert to use basic mmio gpio libraryKamlakant Patel2015-01-091-0/+1
| | | | | | | | | | This patch converts MOXART GPIO driver to use basic_mmio_gpio generic library. Signed-off-by: Kamlakant Patel <kamlakant.patel@linaro.org> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Jonas Jensen <jonas.jensen@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'gpio-v3.19-2' of ↵Linus Torvalds2014-12-141-0/+23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull take two of the GPIO updates: "Same stuff as last time, now with a fixup patch for the previous compile error plus I ran a few extra rounds of compile-testing. This is the bulk of GPIO changes for the v3.19 series: - A new API that allows setting more than one GPIO at the time. This is implemented for the new descriptor-based API only and makes it possible to e.g. toggle a clock and data line at the same time, if the hardware can do this with a single register write. Both consumers and drivers need new calls, and the core will fall back to driving individual lines where needed. Implemented for the MPC8xxx driver initially - Patched the mdio-mux-gpio and the serial mctrl driver that drives modems to use the new multiple-setting API to set several signals simultaneously - Get rid of the global GPIO descriptor array, and instead allocate descriptors dynamically for each GPIO on a certain GPIO chip. This moves us closer to getting rid of the limitation of using the global, static GPIO numberspace - New driver and device tree bindings for 74xx ICs - New driver and device tree bindings for the VF610 Vybrid - Support the RCAR r8a7793 and r8a7794 - Guidelines for GPIO device tree bindings trying to get things a bit more strict with the advent of combined device properties - Suspend/resume support for the MVEBU driver - A slew of minor fixes and improvements" * tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (33 commits) gpio: mcp23s08: fix up compilation error gpio: pl061: document gpio-ranges property for bindings file gpio: pl061: hook request if gpio-ranges avaiable gpio: mcp23s08: Add option to configure IRQ output polarity as active high gpio: fix deferred probe detection for legacy API serial: mctrl_gpio: use gpiod_set_array function mdio-mux-gpio: Use GPIO descriptor interface and new gpiod_set_array function gpio: remove const modifier from gpiod_get_direction() gpio: remove gpio_descs global array gpio: mxs: implement get_direction callback gpio: em: Use dynamic allocation of GPIOs gpio: Check if base is positive before calling gpio_is_valid() gpio: mcp23s08: Add simple IRQ support for SPI devices gpio: mcp23s08: request a shared interrupt gpio: mcp23s08: Do not free unrequested interrupt gpio: rcar: Add r8a7793 and r8a7794 support gpio-mpc8xxx: add mpc8xxx_gpio_set_multiple function gpiolib: allow simultaneous setting of multiple GPIO outputs gpio: mvebu: add suspend/resume support gpio: gpio-davinci: remove duplicate check on resource ..
| * gpio: dwapb: fix compile errorsLinus Walleij2014-10-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whereas the DWAPB driver does not really depend on the ARM architecture, it uses [readl|writel]_relaxed() not found on arch such as Blackfin, so restrict this to ARM until there is another architecture that can make use of it. It is also using the of_node of the gpiochip, so fix this too by requiring OF_GPIO. All error/warnings: make.cross ARCH=blackfin drivers/gpio/gpio-dwapb.c: In function 'dwapb_irq_handler': drivers/gpio/gpio-dwapb.c:91:2: error: implicit declaration of function 'readl_relaxed' [-Werror=implicit-function-declaration] drivers/gpio/gpio-dwapb.c: In function 'dwapb_configure_irqs': drivers/gpio/gpio-dwapb.c:212:32: error: 'struct gpio_chip' has no member named 'of_node' drivers/gpio/gpio-dwapb.c:221:16: error: 'struct gpio_chip' has no member named 'of_node' drivers/gpio/gpio-dwapb.c: In function 'dwapb_gpio_add_port': drivers/gpio/gpio-dwapb.c:331:14: error: 'struct gpio_chip' has no member named 'of_node' cc1: some warnings being treated as errors Cc: Jamie Iles <jamie@jamieiles.com> Cc: Alan Tull <atull@altera.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: vf610: add gpiolib/IRQ chip driver for VybridStefan Agner2014-10-241-0/+7
| | | | | | | | | | | | | | | | | | | | Add a gpiolib and IRQ chip driver for Vybrid ARM SoC using the Vybrid's GPIO and PORT module. The driver is instanced once per each GPIO/PORT module pair and handles 32 GPIO's. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * GPIO: Add driver for 74xx-ICs with MMIO accessAlexander Shiyan2014-10-211-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds driver to support GPIO functionality for 74xx-compatible ICs with MMIO access. Compatible models include: 1 bit: 741G125 (Input), 741G74 (Output) 2 bits: 742G125 (Input), 7474 (Output) 4 bits: 74125 (Input), 74175 (Output) 6 bits: 74365 (Input), 74174 (Output) 8 bits: 74244 (Input), 74273 (Output) 16 bits: 741624 (Input), 7416374 (Output) Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: add support for the Diolan DLN-2 USB GPIO driverDaniel Baluta2014-11-101-0/+12
|/ | | | | | | | | | | | | | | | This patch adds GPIO and IRQ support for the Diolan DLN-2 GPIO module. Information about the USB protocol interface can be found in the Programmer's Reference Manual [1], see section 2.9 for the GPIO module commands and responses. [1] https://www.diolan.com/downloads/dln-api-manual.pdf Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 22:29:11 +0100