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 #define LOG_CATEGORY UCLASS_PWM
8
9 #include <common.h>
10 #include <dm.h>
11 #include <pwm.h>
12
pwm_set_invert(struct udevice * dev,uint channel,bool polarity)13 int pwm_set_invert(struct udevice *dev, uint channel, bool polarity)
14 {
15 struct pwm_ops *ops = pwm_get_ops(dev);
16
17 if (!ops->set_invert)
18 return -ENOSYS;
19
20 return ops->set_invert(dev, channel, polarity);
21 }
22
pwm_set_config(struct udevice * dev,uint channel,uint period_ns,uint duty_ns)23 int pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
24 uint duty_ns)
25 {
26 struct pwm_ops *ops = pwm_get_ops(dev);
27
28 if (!ops->set_config)
29 return -ENOSYS;
30
31 return ops->set_config(dev, channel, period_ns, duty_ns);
32 }
33
pwm_set_enable(struct udevice * dev,uint channel,bool enable)34 int pwm_set_enable(struct udevice *dev, uint channel, bool enable)
35 {
36 struct pwm_ops *ops = pwm_get_ops(dev);
37
38 if (!ops->set_enable)
39 return -ENOSYS;
40
41 return ops->set_enable(dev, channel, enable);
42 }
43
44 UCLASS_DRIVER(pwm) = {
45 .id = UCLASS_PWM,
46 .name = "pwm",
47 };
48