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    Subject[PWM v6 0/3] Implement a generic PWM framework
    This patch series contains the sixth attempt at implementation of
    a generic PWM device interface framework. Think gpiolib, but for
    devices and pseudo-devices that generate pulse-wave-modulated outputs.

    Compared to the previous version, this patch series:

    * Cleans up error handling in atmel-pwmc device registration and removal
    * Removes excessive inlines from atmel-pwmc implementation
    * Drops unnecessary IS_ERR_OR_NULL test from ioremap return value
    * Removes Atmel PWMC's Kconfig patch from the gpio-pwm patch file

    Functionally-speaking, this series has regressed somewhat from
    previous versions because I am currently focusing my attention on the
    API itself. I include only implementations for GPIO+hrtimer devices
    and the Atmel PWMC peripheral as references in this series; I will
    post patches for LED drivers, PXA, Samsung, etc. devices once I know
    that the API itself is on its way to mainline. (I believe that the
    two reference implementations sufficiently confirm the utility of the
    API itself).

    The code in this series is significantly clearer and more
    straightforward than previous versions. Thanks to everyone who helped
    me with this refactoring! I'm pretty convinced that the code you see
    here is at last suitable for pulling into mainline.

    Finally, the attached code CAN be used to control devices that drive
    stepper motors and the like, but doing so is discouraged as I am
    anticipating a request to develop an API specifically for such



    Bill Gatliff (3):
    PWM: Implement a generic PWM framework
    PWM: GPIO+hrtimer device emulation
    PWM: Atmel PWMC driver

    Documentation/pwm.txt | 277 +++++++++++++++++++++
    drivers/Kconfig | 2 +
    drivers/Makefile | 2 +
    drivers/pwm/Kconfig | 29 +++
    drivers/pwm/Makefile | 7 +
    drivers/pwm/atmel-pwmc.c | 494 +++++++++++++++++++++++++++++++++++++
    drivers/pwm/gpio-pwm.c | 348 ++++++++++++++++++++++++++
    drivers/pwm/pwm.c | 610 ++++++++++++++++++++++++++++++++++++++++++++++
    include/linux/pwm/pwm.h | 155 ++++++++++++
    9 files changed, 1924 insertions(+), 0 deletions(-)
    create mode 100644 Documentation/pwm.txt
    create mode 100644 drivers/pwm/Kconfig
    create mode 100644 drivers/pwm/Makefile
    create mode 100644 drivers/pwm/atmel-pwmc.c
    create mode 100644 drivers/pwm/gpio-pwm.c
    create mode 100644 drivers/pwm/pwm.c
    create mode 100644 include/linux/pwm/pwm.h


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