LXR uboot/drivers/pwm/pwm-uclass.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (c) 2016 Google, Inc
   4 * Written by Simon Glass <sjg@chromium.org>
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <pwm.h>
  10
  11int pwm_set_invert(struct udevice *dev, uint channel, bool polarity)
  12{
  13        struct pwm_ops *ops = pwm_get_ops(dev);
  14
  15        if (!ops->set_invert)
  16                return -ENOSYS;
  17
  18        return ops->set_invert(dev, channel, polarity);
  19}
  20
  21int pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
  22                   uint duty_ns)
  23{
  24        struct pwm_ops *ops = pwm_get_ops(dev);
  25
  26        if (!ops->set_config)
  27                return -ENOSYS;
  28
  29        return ops->set_config(dev, channel, period_ns, duty_ns);
  30}
  31
  32int pwm_set_enable(struct udevice *dev, uint channel, bool enable)
  33{
  34        struct pwm_ops *ops = pwm_get_ops(dev);
  35
  36        if (!ops->set_enable)
  37                return -ENOSYS;
  38
  39        return ops->set_enable(dev, channel, enable);
  40}
  41
  42UCLASS_DRIVER(pwm) = {
  43        .id             = UCLASS_PWM,
  44        .name           = "pwm",
  45};
  46