Eric Lee / smarc-fsl-linux-kernel

25 Jun, 2020

1 commit

10 Feb, 2020

2 commits

  • d2ee0ef1e   FROMLIST: pwm: Convert period and duty cycle to u64 ... Browse Code »

    Because period and duty cycle are defined as ints with units of
    nanoseconds, the maximum time duration that can be set is limited to
    ~2.147 seconds. Change their definitions to u64 in the structs of the
    PWM framework so that higher durations may be set.

    Also make the relevant fixes to those drivers that use the period and
    duty_cycle struct members in division operations, viz. replacing the
    division operations with 64-bit division macros as appropriate.

    Bug: 140290586
    Link: https://www.spinics.net/lists/linux-pwm/msg11133.html
    Signed-off-by: Guru Das Srinagesh
    Reported-by: kbuild test robot
    Signed-off-by: Todd Kjos
    Signed-off-by: Greg Kroah-Hartman
    Change-Id: Ife96637115f8f704aef938291eb189cb29378afb

    Guru Das Srinagesh
     
  • e3ae1a989   Revert "FROMLIST: pwm: Convert period and duty cycle to u64" ... Browse Code »

    This reverts commit 79650f61a73ba40fa896823d05d6dd5a2768c9b6 as it
    causes merge issues with the 5.6-rc1 merge.

    Bug: 140290586
    Cc: Guru Das Srinagesh
    Cc: Todd Kjos
    Signed-off-by: Greg Kroah-Hartman
    Change-Id: I397f72b24bc9230cc04c35e77abf1f167147f4de

    Greg Kroah-Hartman
     

27 Nov, 2019

1 commit

  • 79650f61a   FROMLIST: pwm: Convert period and duty cycle to u64 ... Browse Code »

    Because period and duty cycle are defined as ints with units of
    nanoseconds, the maximum time duration that can be set is limited to
    ~2.147 seconds. Change their definitions to u64 in the structs of the
    PWM framework so that higher durations may be set.

    Also make the relevant fixes to those drivers that use the period and
    duty_cycle struct members in division operations, viz. replacing the
    division operations with 64-bit division macros as appropriate.

    Bug: 140290586
    Change-Id: Ibb8c7f007f4c11ebf8cf01e7a468cc9c29aa8b23
    Link: https://www.spinics.net/lists/linux-pwm/msg11133.html
    Signed-off-by: Guru Das Srinagesh
    Reported-by: kbuild test robot
    Signed-off-by: Todd Kjos

    Guru Das Srinagesh
     

21 Sep, 2019

1 commit

  • fb5a35dbe   pwm: Remove dev_err() usage after platform_get_irq() ... Browse Code »

    We don't need dev_err() messages when platform_get_irq() fails now that
    platform_get_irq() prints an error message itself when something goes
    wrong. Let's remove these prints with a simple semantic patch.

    //
    @@
    expression ret;
    struct platform_device *E;
    @@

    ret =
    (
    platform_get_irq(E, ...)
    |
    platform_get_irq_byname(E, ...)
    );

    if ( \( ret < 0 \| ret

    While we're here, remove braces on if statements that only have one
    statement (manually).

    Cc: Thierry Reding
    Cc: linux-pwm@vger.kernel.org
    Cc: Greg Kroah-Hartman
    Signed-off-by: Stephen Boyd
    Signed-off-by: Thierry Reding

    Stephen Boyd
     

31 May, 2019

1 commit

  • 2874c5fd2   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 ... Browse Code »

    Based on 1 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license as published by
    the free software foundation either version 2 of the license or at
    your option any later version

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-or-later

    has been chosen to replace the boilerplate/reference in 3029 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

04 Jan, 2017

1 commit

08 Sep, 2016

10 commits

  • 7d8a600c9   pwm: sti: Take the opportunity to conduct a little house keeping ... Browse Code »

    This includes fixing some Coding Style issues and re-ordering and/or
    simplifying a little code.

    Signed-off-by: Lee Jones
    [thierry.reding@gmail.com: applied some bikeshedding>
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • 85a834c42   pwm: sti: It's now valid for number of PWM channels to be zero ... Browse Code »

    Setting up the STI PWM IP as capture only, with zero PWM output devices
    is a perfectly valid configuration. It is no longer okay to assume that
    there must be at least 1 PWM output device. In this patch we make the
    default number of PWM output devices zero and only configure channels
    explicitly requested.

    Reported-by: Peter Griffin
    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • c97267ae8   pwm: sti: Add PWM capture callback ... Browse Code »

    Once a PWM capture has been initiated, the capture call enables a rising
    edge detection interrupt, then waits. Once each of the 3 phase changes
    have been recorded the thread then wakes. The remaining part of the call
    carries out the relevant calculations and returns a structure filled out
    with the capture data.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • 25eb53809   pwm: sti: Add support for PWM capture interrupts ... Browse Code »

    Here we're requesting the PWM capture IRQ and supplying the handler that
    will be called in the event of an interrupt to handle it.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • 3f0925b5a   pwm: sti: Initialise PWM capture device data ... Browse Code »

    Each PWM capture device is allocated a structure to hold its own state.
    During a capture the device may be partaking in one of 3 phases. Initial
    (rising) phase change, a subsequent (falling) phase change indicating
    end of the duty-cycle phase and finally a final (rising) phase change
    indicating the end of the period. The timer value snapshot each event is
    held in a variable of the same name, and the phase number (0, 1, 2) is
    contained in the index variable. Other device specific information, such
    as GPIO pin, the IRQ wait queue and locking is also contained in the
    structure. This patch initialises this structure for each of the
    available devices.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • d66a928dc   pwm: sti: Supply PWM Capture clock handling ... Browse Code »

    ST's PWM IP is supplied by 2 different clocks. One for PWM output and
    the other for capture. This patch provides clock handling for the
    latter.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • f66d78faf   pwm: sti: Supply PWM capture register addresses and bit locations ... Browse Code »

    This is in preparation for subsequent patches that add support for PWM
    capture to this driver.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • d81738b76   pwm: sti: Only request clock rate when needed ... Browse Code »

    In the original code the clock rate was only obtained during
    initialisation; however, the rate may change between then and
    its use. This patch ensures the correct rate is acquired just
    before use.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • c5f94ae63   pwm: sti: Reorganise register names in preparation for new functionality ... Browse Code »

    Exciting functionality is on the way to this device. But
    before we can add it, we need to do some basic housekeeping
    so the additions can be added cleanly.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     
  • 09022e61d   pwm: sti: Rename channel => device ... Browse Code »

    This is to bring the terminology used in the STi PWM driver more
    into line with the PWM subsystem.

    Signed-off-by: Lee Jones
    Signed-off-by: Thierry Reding

    Lee Jones
     

30 Jan, 2015

1 commit

  • cd264b6a6   pwm: sti: Maintain a bitmap of configured devices ... Browse Code »

    This patch introduces a bitmap which is used to keep track of the
    pwm channels which have been configured in a pwm chip.

    The method used earlier to find the number of configured channels,
    was to count the pwmdevices with PWMF_REQUESTED field set
    and period value configured. This was not correct and failed
    when of_pwm_get()/pwm_get() and then pwm_config() was used.

    Signed-off-by: Ajit Pal Singh
    Signed-off-by: Thierry Reding

    Ajit Pal Singh
     

08 Aug, 2014

4 commits

07 Aug, 2014

1 commit