Eric Lee / smarc-fsl-linux-kernel

20 Jul, 2020

1 commit

  • dfc3a26de   gpio: adp5588: Use irqchip template ... Browse Code »

    This makes the driver use the irqchip template to assign
    properties to the gpio_irq_chip instead of using the
    explicit calls to gpiochip_irqchip_add_nested() and
    gpiochip_set_nested_irqchip(). The irqchip is instead
    added while adding the gpiochip.

    Signed-off-by: Linus Walleij
    Acked-by: Michael Hennerich
    Cc: Nikolaus Voss
    Cc: Michael Hennerich
    Link: https://lore.kernel.org/r/20200716150502.195821-1-linus.walleij@linaro.org

    Linus Walleij
     

31 May, 2019

1 commit

  • 80503b23b   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 ... Browse Code »

    Based on 1 normalized pattern(s):

    licensed under the gpl 2 or later

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-or-later

    has been chosen to replace the boilerplate/reference in 82 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Reviewed-by: Kate Stewart
    Reviewed-by: Richard Fontana
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190524100845.150836982@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

09 Feb, 2019

2 commits

  • 5d643edad   gpio: adp5588.c: Switch to events system ... Browse Code »

    Interupts were generated using GPIN interrupts of
    ADP5588. These interrupts have two important limitations:
    1. Interrupts can only be generated for either rising or
    falling edges but not both.
    2. Interrupts are reasserted as long as the interrupt condition
    persists (i.e. high or low level on that GPIN). This generates
    lots of interrupts unless the event is very short.

    To overcome this, ADP5588 provides an event system which queues
    up to 10 events in a buffer. GPIN events are queued whenever the
    GPIN is asserted or deasserted. This makes it possible to support
    generating GPIN interrupts for both edges and to generate only one
    interrupt per state change.
    Thus it is possible to chain the gpio-keys driver for some GPIOs.

    Signed-off-by: Nikolaus Voss
    Acked-by: Michael Hennerich
    Signed-off-by: Linus Walleij

    Nikolaus Voss
     
  • 9f22af116   gpio: adp5588: Add device tree support ... Browse Code »

    Make platform data optional and add DT id table.
    Switch to dynamically mapped GPIOs and IRQs if not provided
    via platform data.

    Signed-off-by: Nikolaus Voss
    Acked-by: Michael Hennerich
    Signed-off-by: Linus Walleij

    Nikolaus Voss
     

23 Oct, 2018

1 commit

  • 114b5f8f7   Merge tag 'gpio-v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio ... Browse Code »

    Pull GPIO updates from Linus Walleij:
    "This is the bulk of GPIO changes for the v4.20 series:

    Core changes:

    - A patch series from Hans Verkuil to make it possible to
    enable/disable IRQs on a GPIO line at runtime and drive GPIO lines
    as output without having to put/get them from scratch.

    The irqchip callbacks have been improved so that they can use only
    the fastpatch callbacks to enable/disable irqs like any normal
    irqchip, especially the gpiod_lock_as_irq() has been improved to be
    callable in fastpath context.

    A bunch of rework had to be done to achieve this but it is a big
    win since I never liked to restrict this to slowpath. The only call
    requireing slowpath was try_module_get() and this is kept at the
    .request_resources() slowpath callback. In the GPIO CEC driver this
    is a big win sine a single line is used for both outgoing and
    incoming traffic, and this needs to use IRQs for incoming traffic
    while actively driving the line for outgoing traffic.

    - Janusz Krzysztofik improved the GPIO array API to pass a "cookie"
    (struct gpio_array) and a bitmap for setting or getting multiple
    GPIO lines at once.

    This improvement orginated in a specific need to speed up an OMAP1
    driver and has led to a much better API and real performance gains
    when the state of the array can be used to bypass a lot of checks
    and code when we want things to go really fast.

    The previous code would minimize the number of calls down to the
    driver callbacks assuming the CPU speed was orders of magnitude
    faster than the I/O latency, but this assumption was wrong on
    several platforms: what we needed to do was to profile and improve
    the speed on the hot path of the array functions and this change is
    now completed.

    - Clean out the painful and hard to grasp BNF experiments from the
    device tree bindings. Future approaches are looking into using JSON
    schema for this purpose. (Rob Herring is floating a patch series.)

    New drivers:

    - The RCAR driver now supports r8a774a1 (RZ/G2M).

    - Synopsys GPIO via CREGs driver.

    Major improvements:

    - Modernization of the EP93xx driver to use irqdomain and other
    contemporary concepts.

    - The ingenic driver has been merged into the Ingenic pin control
    driver and removed from the GPIO subsystem.

    - Debounce support in the ftgpio010 driver"

    * tag 'gpio-v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (116 commits)
    gpio: Clarify kerneldoc on gpiochip_set_chained_irqchip()
    gpio: Remove unused 'irqchip' argument to gpiochip_set_cascaded_irqchip()
    gpio: Drop parent irq assignment during cascade setup
    mmc: pwrseq_simple: Fix incorrect handling of GPIO bitmap
    gpio: fix SNPS_CREG kconfig dependency warning
    gpiolib: Initialize gdev field before is used
    gpio: fix kernel-doc after devres.c file rename
    gpio: fix doc string for devm_gpiochip_add_data() to not talk about irq_chip
    gpio: syscon: Fix possible NULL ptr usage
    gpiolib: Show correct direction from the beginning
    pinctrl: msm: Use init_valid_mask exported function
    gpiolib: Add init_valid_mask exported function
    GPIO: add single-register GPIO via CREG driver
    dt-bindings: Document the Synopsys GPIO via CREG bindings
    gpio: mockup: use device properties instead of platform_data
    gpio: Slightly more helpful debugfs
    gpio: omap: Remove set but not used variable 'dev'
    gpio: omap: drop omap_gpio_list
    Accept partial 'gpio-line-names' property.
    gpio: omap: get rid of the conditional PM runtime calls
    ...

    Linus Torvalds
     

29 Aug, 2018

2 commits

14 Jan, 2018

1 commit

29 May, 2017

1 commit

23 Feb, 2016

1 commit

05 Jan, 2016

1 commit

28 Jul, 2015

1 commit

  • 23393d49f   gpio: kill off set_irq_flags usage ... Browse Code »

    set_irq_flags is ARM specific with custom flags which have genirq
    equivalents. Convert drivers to use the genirq interfaces directly, so we
    can kill off set_irq_flags. The translation of flags is as follows:

    IRQF_VALID -> !IRQ_NOREQUEST
    IRQF_PROBE -> !IRQ_NOPROBE
    IRQF_NOAUTOEN -> IRQ_NOAUTOEN

    For IRQs managed by an irqdomain, the irqdomain core code handles clearing
    and setting IRQ_NOREQUEST already, so there is no need to do this in
    .map() functions and we can simply remove the set_irq_flags calls. Some
    users also modify IRQ_NOPROBE and this has been maintained although it
    is not clear that is really needed as most platforms don't use probing.
    There appears to be a great deal of blind copy and paste of this code.

    Signed-off-by: Rob Herring
    Cc: Michael Hennerich
    Acked-by: Linus Walleij
    Cc: Alexandre Courbot
    Cc: Ray Jui
    Cc: Stephen Warren
    Cc: Thierry Reding
    Cc: linux-gpio@vger.kernel.org
    Cc: bcm-kernel-feedback-list@broadcom.com
    Cc: linux-tegra@vger.kernel.org
    Signed-off-by: Linus Walleij

    Rob Herring
     

08 Apr, 2015

3 commits

22 Jul, 2014

1 commit

09 May, 2014

1 commit

13 Feb, 2014

2 commits

04 Dec, 2013

1 commit

  • 9fb1f39eb   gpio/pinctrl: make gpio_chip members typed boolean ... Browse Code »

    This switches the two members of struct gpio_chip that were
    defined as unsigned foo:1 to bool, because that is indeed what
    they are. Switch all users in the gpio and pinctrl subsystems
    to assign these values with true/false instead of 0/1. The
    users outside these subsystems will survive since true/false
    is 1/0, atleast we set some kind of more strict typing example.

    Signed-off-by: Linus Walleij

    Linus Walleij
     

16 Aug, 2013

1 commit

29 Nov, 2012

3 commits

  • 206210ce6   gpio: remove use of __devexit ... Browse Code »

    CONFIG_HOTPLUG is going away as an option so __devexit is no
    longer needed.

    Signed-off-by: Bill Pemberton
    Cc: Grant Likely
    Acked-by: Linus Walleij
    Cc: Peter Tyser
    Acked-by: Mark Brown
    Signed-off-by: Greg Kroah-Hartman

    Bill Pemberton
     
  • 3836309d9   gpio: remove use of __devinit ... Browse Code »

    CONFIG_HOTPLUG is going away as an option so __devinit is no longer
    needed.

    Signed-off-by: Bill Pemberton
    Cc: Grant Likely
    Cc: Peter Tyser
    Cc: Santosh Shilimkar
    Cc: Kevin Hilman
    Acked-by: Linus Walleij
    Acked-by: Mark Brown
    Signed-off-by: Greg Kroah-Hartman

    Bill Pemberton
     
  • 8283c4ff5   gpio: remove use of __devexit_p ... Browse Code »

    CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
    needed.

    Signed-off-by: Bill Pemberton
    Cc: Grant Likely
    Cc: Peter Tyser
    Acked-by: Linus Walleij
    Acked-by: Mark Brown
    Signed-off-by: Greg Kroah-Hartman

    Bill Pemberton
     

04 Sep, 2012

1 commit

11 Apr, 2012

1 commit

13 Dec, 2011

1 commit

  • 64842aad5   gpiolib: output basic details and consolidate gpio device drivers ... Browse Code »

    This patch adds a kernel message, containing GPIO range and device
    name on successful device registration, and removes duplicate messages from the following drivers:
    * gpio-adp5588
    * gpio-bt8xx
    * gpio-cs5535
    * gpio-janz-ttl
    * gpio-nomadik
    * gpio-pcf857x
    * gpio-xilinx
    * drivers/of/gpio.c

    Signed-off-by: Hartmut Knaack
    [grant.likely@secretlab.ca: squashed 2 patches together]
    Signed-off-by: Grant Likely

    Grant Likely
     

07 Jun, 2011

1 commit

  • c103de240   gpio: reorganize drivers ... Browse Code »

    Sort the gpio makefile and enforce the naming convention gpio-*.c for
    gpio drivers.

    v2: cleaned up filenames in Kconfig and comment blocks
    v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc

    Signed-off-by: Grant Likely

    Grant Likely