dp_mst_drm.h 1.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
  4. */
  5. #ifndef _DP_MST_DRM_H_
  6. #define _DP_MST_DRM_H_
  7. #include <linux/types.h>
  8. #include <drm/drmP.h>
  9. #include <drm/drm_crtc.h>
  10. #include <drm/drm_bridge.h>
  11. #include "dp_display.h"
  12. #if IS_ENABLED(CONFIG_DRM_MSM_DP_MST)
  13. /**
  14. * dp_mst_drm_bridge_init - initialize mst bridge
  15. * @display: Pointer to private display structure
  16. * @encoder: Pointer to encoder for mst bridge mapping
  17. */
  18. int dp_mst_drm_bridge_init(void *display,
  19. struct drm_encoder *encoder);
  20. /**
  21. * dp_mst_drm_bridge_deinit - de-initialize mst bridges
  22. * @display: Pointer to private display structure
  23. */
  24. void dp_mst_drm_bridge_deinit(void *display);
  25. /**
  26. * dp_mst_init - initialize mst objects for the given display
  27. * @display: Pointer to private display structure
  28. */
  29. int dp_mst_init(struct dp_display *dp_display);
  30. /**
  31. * dp_mst_deinit - de-initialize mst objects for the given display
  32. * @display: Pointer to private display structure
  33. */
  34. void dp_mst_deinit(struct dp_display *dp_display);
  35. #else
  36. static inline int dp_mst_drm_bridge_init(void *display,
  37. struct drm_encoder *encoder)
  38. {
  39. return 0;
  40. }
  41. static inline void dp_mst_drm_bridge_deinit(void *display)
  42. {
  43. }
  44. static inline int dp_mst_init(struct dp_display *dp_display)
  45. {
  46. return 0;
  47. }
  48. static inline int dp_mst_deinit(struct dp_display *dp_display)
  49. {
  50. return 0;
  51. }
  52. #endif /* CONFIG_DRM_MSM_DP_MST */
  53. #endif /* _DP_MST_DRM_H_ */