Eric Lee / smarc-fsl-linux-kernel

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include/drm/drm_of.h 2.8 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  /* SPDX-License-Identifier: GPL-2.0 */
  #ifndef __DRM_OF_H__
  #define __DRM_OF_H__
  
  #include <linux/of_graph.h>
  
  struct component_match;
  struct component_master_ops;
  struct component_match;
  struct device;
  struct drm_device;
  struct drm_encoder;
  struct drm_panel;
  struct drm_bridge;
  struct device_node;
  
  #ifdef CONFIG_OF
  uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
  				    struct device_node *port);
  void drm_of_component_match_add(struct device *master,
  				struct component_match **matchptr,
  				int (*compare)(struct device *, void *),
  				struct device_node *node);
  extern int drm_of_component_probe_with_match(struct device *dev,
  			   struct component_match *match,
  			   int (*compare_of)(struct device *, void *),
  			   const struct component_master_ops *m_ops);
  int drm_of_component_probe(struct device *dev,
  			   int (*compare_of)(struct device *, void *),
  			   const struct component_master_ops *m_ops);
  int drm_of_encoder_active_endpoint(struct device_node *node,
  				   struct drm_encoder *encoder,
  				   struct of_endpoint *endpoint);
  int drm_of_find_panel_or_bridge(const struct device_node *np,
  				int port, int endpoint,
  				struct drm_panel **panel,
  				struct drm_bridge **bridge);
  #else
  static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
  						  struct device_node *port)
  {
  	return 0;
  }
  
  static inline void
  drm_of_component_match_add(struct device *master,
  			   struct component_match **matchptr,
  			   int (*compare)(struct device *, void *),
  			   struct device_node *node)
  {
  }
  
  static int drm_of_component_probe_with_match(struct device *dev,
  			   struct component_match *match,
  			   int (*compare_of)(struct device *, void *),
  			   const struct component_master_ops *m_ops)
  {
  	return -EINVAL;
  }
  
  static inline int
  drm_of_component_probe(struct device *dev,
  		       int (*compare_of)(struct device *, void *),
  		       const struct component_master_ops *m_ops)
  {
  	return -EINVAL;
  }
  
  static inline int drm_of_encoder_active_endpoint(struct device_node *node,
  						 struct drm_encoder *encoder,
  						 struct of_endpoint *endpoint)
  {
  	return -EINVAL;
  }
  static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
  					      int port, int endpoint,
  					      struct drm_panel **panel,
  					      struct drm_bridge **bridge)
  {
  	return -EINVAL;
  }
  #endif
  
  static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
  						    struct drm_encoder *encoder)
  {
  	struct of_endpoint endpoint;
  	int ret = drm_of_encoder_active_endpoint(node, encoder,
  						 &endpoint);
  
  	return ret ?: endpoint.id;
  }
  
  static inline int drm_of_encoder_active_port_id(struct device_node *node,
  						struct drm_encoder *encoder)
  {
  	struct of_endpoint endpoint;
  	int ret = drm_of_encoder_active_endpoint(node, encoder,
  						 &endpoint);
  
  	return ret ?: endpoint.port;
  }
  
  #endif /* __DRM_OF_H__ */