LXR linux/drivers/gpu/drm/rcar-du/rcar_du

   1/*
   2 * rcar_du_lvdsenc.h  --  R-Car Display Unit LVDS Encoder
   3 *
   4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
   5 *
   6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 */
  13
  14#ifndef __RCAR_DU_LVDSENC_H__
  15#define __RCAR_DU_LVDSENC_H__
  16
  17#include <linux/io.h>
  18#include <linux/module.h>
  19
  20struct rcar_drm_crtc;
  21struct rcar_du_lvdsenc;
  22
  23enum rcar_lvds_input {
  24        RCAR_LVDS_INPUT_DU0,
  25        RCAR_LVDS_INPUT_DU1,
  26        RCAR_LVDS_INPUT_DU2,
  27};
  28
  29/* Keep in sync with the LVDCR0.LVMD hardware register values. */
  30enum rcar_lvds_mode {
  31        RCAR_LVDS_MODE_JEIDA = 0,
  32        RCAR_LVDS_MODE_MIRROR = 1,
  33        RCAR_LVDS_MODE_VESA = 4,
  34};
  35
  36#if IS_ENABLED(CONFIG_DRM_RCAR_LVDS)
  37int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu);
  38void rcar_du_lvdsenc_set_mode(struct rcar_du_lvdsenc *lvds,
  39                              enum rcar_lvds_mode mode);
  40int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds,
  41                           struct drm_crtc *crtc, bool enable);
  42void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds,
  43                                  struct drm_display_mode *mode);
  44#else
  45static inline int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu)
  46{
  47        return 0;
  48}
  49static inline void rcar_du_lvdsenc_set_mode(struct rcar_du_lvdsenc *lvds,
  50                                            enum rcar_lvds_mode mode)
  51{
  52}
  53static inline int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds,
  54                                         struct drm_crtc *crtc, bool enable)
  55{
  56        return 0;
  57}
  58static inline void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds,
  59                                                struct drm_display_mode *mode)
  60{
  61}
  62#endif
  63
  64#endif /* __RCAR_DU_LVDSENC_H__ */
  65