sys/dev/drm/include/linux/pwm.h

   1 /*
   2  * Copyright (c) 2016 François Tigeot
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice unmodified, this list of conditions, and the following
  10  *    disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #ifndef _LINUX_PWM_H_
  28 #define _LINUX_PWM_H_
  29
  30 #include <linux/device.h>
  31
  32 struct pwm_device;
  33
  34 static inline int
  35 pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
  36 {
  37         kprintf("Stub: %s\n", __FUNCTION__);
  38         return -EINVAL;
  39 }
  40
  41 static inline unsigned int
  42 pwm_get_duty_cycle(const struct pwm_device *pwm)
  43 {
  44         kprintf("Stub: %s\n", __FUNCTION__);
  45         return 0;
  46 }
  47
  48 static inline void
  49 pwm_set_duty_cycle(struct pwm_device *pwm, unsigned int duty)
  50 {
  51         kprintf("Stub: %s\n", __FUNCTION__);
  52 }
  53
  54 static inline int
  55 pwm_enable(struct pwm_device *pwm)
  56 {
  57         kprintf("Stub: %s\n", __FUNCTION__);
  58         return -EINVAL;
  59 }
  60
  61 static inline void
  62 pwm_disable(struct pwm_device *pwm)
  63 {
  64         kprintf("Stub: %s\n", __FUNCTION__);
  65 }
  66
  67 static inline struct pwm_device *
  68 pwm_get(struct device *dev, const char *consumer)
  69 {
  70         kprintf("Stub: %s\n", __FUNCTION__);
  71         return NULL;
  72 }
  73
  74 static inline void
  75 pwm_put(struct pwm_device *pwm)
  76 {
  77         kprintf("Stub: %s\n", __FUNCTION__);
  78 }
  79
  80 #endif  /* _LINUX_PWM_H_ */