Eric Lee / smarc-fsl-linux-kernel

28 Apr, 2020

1 commit

  • 1c12857c6   gpio: ftgpio010: Fix small typo ... Browse Code »

    Fix a spelling typo in gpio-ftgpio010.c by codespell
    s/desireable/desirable/

    Cc: Andy Shevchenko
    Signed-off-by: Dejin Zheng
    Link: https://lore.kernel.org/r/20200424154103.10311-2-zhengdejin5@gmail.com
    Signed-off-by: Linus Walleij

    Dejin Zheng
     

23 Aug, 2019

1 commit

20 Aug, 2019

1 commit

14 Jun, 2019

1 commit

05 Apr, 2019

1 commit

25 Feb, 2019

1 commit

30 Aug, 2018

2 commits

  • 36f3f19a8   gpio: ftgpio: Support debounce timer ... Browse Code »

    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
     
  • da02d7945   gpio: ftgpio: Support optional silicon clock ... Browse Code »

    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
    Signed-off-by: Linus Walleij

    Linus Walleij
     

19 Mar, 2018

1 commit

13 Feb, 2018

1 commit

  • 69a87f290   gpio: ftgpio010: Fix some more registers ... Browse Code »

    There is a register for "bypass" which seems to not be
    used for anything in some silicon designs, but may be used
    in others, and there is both a raw and masked interrupt
    status register.

    Define them all for clarity, no semantic changes.

    Signed-off-by: Linus Walleij

    Linus Walleij
     

03 Dec, 2017

1 commit

15 Nov, 2017

1 commit

  • 6aa2f9441   Merge tag 'gpio-v4.15-1' of ssh://gitolite.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 v4.15 kernel cycle:

    Core:

    - Fix the semantics of raw GPIO to actually be raw. No inversion
    semantics as before, but also no open draining, and allow the raw
    operations to affect lines used for interrupts as the caller
    supposedly knows what they are doing if they are getting the big
    hammer.

    - Rewrote the __inner_function() notation calls to names that make
    more sense. I just find this kind of code disturbing.

    - Drop the .irq_base() field from the gpiochip since now all IRQs are
    mapped dynamically. This is nice.

    - Support for .get_multiple() in the core driver API. This allows us
    to read several GPIO lines with a single register read. This has
    high value for some usecases: it can be used to create
    oscilloscopes and signal analyzers and other things that rely on
    reading several lines at exactly the same instant. Also a generally
    nice optimization. This uses the new assign_bit() macro from the
    bitops lib that was ACKed by Andrew Morton and is implemented for
    two drivers, one of them being the generic MMIO driver so everyone
    using that will be able to benefit from this.

    - Do not allow requests of Open Drain and Open Source setting of a
    GPIO line simultaneously. If the hardware actually supports
    enabling both at the same time the electrical result would be
    disastrous.

    - A new interrupt chip core helper. This will be helpful to deal with
    "banked" GPIOs, which means GPIO controllers with several logical
    blocks of GPIO inside them. This is several gpiochips per device in
    the device model, in contrast to the case when there is a 1-to-1
    relationship between a device and a gpiochip.

    New drivers:

    - Maxim MAX3191x industrial serializer, a very interesting piece of
    professional I/O hardware.

    - Uniphier GPIO driver. This is the GPIO block from the recent
    Socionext (ex Fujitsu and Panasonic) platform.

    - Tegra 186 driver. This is based on the new banked GPIO
    infrastructure.

    Other improvements:

    - Some documentation improvements.

    - Wakeup support for the DesignWare DWAPB GPIO controller.

    - Reset line support on the DesignWare DWAPB GPIO controller.

    - Several non-critical bug fixes and improvements for the Broadcom
    BRCMSTB driver.

    - Misc non-critical bug fixes like exotic errorpaths, removal of dead
    code etc.

    - Explicit comments on fall-through switch() statements"

    * tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (65 commits)
    gpio: tegra186: Remove tegra186_gpio_lock_class
    gpio: rcar: Add r8a77995 (R-Car D3) support
    pinctrl: bcm2835: Fix some merge fallout
    gpio: Fix undefined lock_dep_class
    gpio: Automatically add lockdep keys
    gpio: Introduce struct gpio_irq_chip.first
    gpio: Disambiguate struct gpio_irq_chip.nested
    gpio: Add Tegra186 support
    gpio: Export gpiochip_irq_{map,unmap}()
    gpio: Implement tighter IRQ chip integration
    gpio: Move lock_key into struct gpio_irq_chip
    gpio: Move irq_valid_mask into struct gpio_irq_chip
    gpio: Move irq_nested into struct gpio_irq_chip
    gpio: Move irq_chained_parent to struct gpio_irq_chip
    gpio: Move irq_default_type to struct gpio_irq_chip
    gpio: Move irq_handler to struct gpio_irq_chip
    gpio: Move irqdomain into struct gpio_irq_chip
    gpio: Move irqchip into struct gpio_irq_chip
    gpio: Introduce struct gpio_irq_chip
    pinctrl: armada-37xx: remove unused variable
    ...

    Linus Torvalds
     

08 Nov, 2017

1 commit

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

22 Mar, 2017

1 commit

  • 9d3a15aaa   gpio: gemini: rename to match Faraday IP ... Browse Code »

    The Gemini driver is actually a driver for the Faraday Technology
    FTGPIO010 IP block. We rename the driver and the Kconfig symbol and
    put in a a new compatible string for the Moxa ART SoC that is also
    using this IP block.

    Tested-by: Jonas Jensen
    Signed-off-by: Linus Walleij

    Linus Walleij