LXR linux/include/drm/drm

   1#ifndef __DRM_OF_H__
   2#define __DRM_OF_H__
   3
   4#include <linux/of_graph.h>
   5
   6struct component_master_ops;
   7struct component_match;
   8struct device;
   9struct drm_device;
  10struct drm_encoder;
  11struct device_node;
  12
  13#ifdef CONFIG_OF
  14extern uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
  15                                           struct device_node *port);
  16extern void drm_of_component_match_add(struct device *master,
  17                                       struct component_match **matchptr,
  18                                       int (*compare)(struct device *, void *),
  19                                       struct device_node *node);
  20extern int drm_of_component_probe(struct device *dev,
  21                                  int (*compare_of)(struct device *, void *),
  22                                  const struct component_master_ops *m_ops);
  23extern int drm_of_encoder_active_endpoint(struct device_node *node,
  24                                          struct drm_encoder *encoder,
  25                                          struct of_endpoint *endpoint);
  26#else
  27static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
  28                                                  struct device_node *port)
  29{
  30        return 0;
  31}
  32
  33static inline void
  34drm_of_component_match_add(struct device *master,
  35                           struct component_match **matchptr,
  36                           int (*compare)(struct device *, void *),
  37                           struct device_node *node)
  38{
  39}
  40
  41static inline int
  42drm_of_component_probe(struct device *dev,
  43                       int (*compare_of)(struct device *, void *),
  44                       const struct component_master_ops *m_ops)
  45{
  46        return -EINVAL;
  47}
  48
  49static inline int drm_of_encoder_active_endpoint(struct device_node *node,
  50                                                 struct drm_encoder *encoder,
  51                                                 struct of_endpoint *endpoint)
  52{
  53        return -EINVAL;
  54}
  55#endif
  56
  57static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
  58                                                    struct drm_encoder *encoder)
  59{
  60        struct of_endpoint endpoint;
  61        int ret = drm_of_encoder_active_endpoint(node, encoder,
  62                                                 &endpoint);
  63
  64        return ret ?: endpoint.id;
  65}
  66
  67static inline int drm_of_encoder_active_port_id(struct device_node *node,
  68                                                struct drm_encoder *encoder)
  69{
  70        struct of_endpoint endpoint;
  71        int ret = drm_of_encoder_active_endpoint(node, encoder,
  72                                                 &endpoint);
  73
  74        return ret ?: endpoint.port;
  75}
  76
  77#endif /* __DRM_OF_H__ */
  78