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
pwm_set_invert(struct udevice * dev,uint channel,bool polarity)11 int 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
pwm_set_config(struct udevice * dev,uint channel,uint period_ns,uint duty_ns)21 int 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
pwm_set_enable(struct udevice * dev,uint channel,bool enable)32 int 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
42 UCLASS_DRIVER(pwm) = {
43 .id = UCLASS_PWM,
44 .name = "pwm",
45 };
46