On Sun, Feb 4, 2024 at 11:09 PM Stefan Wahren <wahrenst@xxxxxxx> wrote: > From: Vincent Whitchurch <vincent.whitchurch@xxxxxxxx> > > Add a software PWM which toggles a GPIO from a high-resolution timer. > > This will naturally not be as accurate or as efficient as a hardware > PWM, but it is useful in some cases. I have for example used it for > evaluating LED brightness handling (via leds-pwm) on a board where the > LED was just hooked up to a GPIO, and for a simple verification of the > timer frequency on another platform. > > Since high-resolution timers are used, sleeping gpio chips are not > supported and are rejected in the probe function. > > Signed-off-by: Vincent Whitchurch <vincent.whitchurch@xxxxxxxx> > Co-developed-by: Stefan Wahren <wahrenst@xxxxxxx> > Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx> This sure looks good to me! Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Yours, Linus Walleij
