drivers/gpu/drm/mxsfb/mxsfb_drv.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
   4  *
   5  * i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver.
   6  */
   7
   8 #ifndef __MXSFB_DRV_H__
   9 #define __MXSFB_DRV_H__
  10
  11 #include <drm/drm_crtc.h>
  12 #include <drm/drm_device.h>
  13 #include <drm/drm_encoder.h>
  14 #include <drm/drm_plane.h>
  15
  16 struct clk;
  17
  18 struct mxsfb_devdata {
  19         unsigned int    transfer_count;
  20         unsigned int    cur_buf;
  21         unsigned int    next_buf;
  22         unsigned int    hs_wdth_mask;
  23         unsigned int    hs_wdth_shift;
  24         bool            has_overlay;
  25         bool            has_ctrl2;
  26         bool            has_crc32;
  27 };
  28
  29 struct mxsfb_drm_private {
  30         const struct mxsfb_devdata      *devdata;
  31
  32         void __iomem                    *base;  /* registers */
  33         struct clk                      *clk;
  34         struct clk                      *clk_axi;
  35         struct clk                      *clk_disp_axi;
  36
  37         unsigned int                    irq;
  38
  39         struct drm_device               *drm;
  40         struct {
  41                 struct drm_plane        primary;
  42                 struct drm_plane        overlay;
  43         } planes;
  44         struct drm_crtc                 crtc;
  45         struct drm_encoder              encoder;
  46         struct drm_connector            *connector;
  47         struct drm_bridge               *bridge;
  48
  49         bool                            crc_active;
  50 };
  51
  52 static inline struct mxsfb_drm_private *
  53 to_mxsfb_drm_private(struct drm_device *drm)
  54 {
  55         return drm->dev_private;
  56 }
  57
  58 void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb);
  59 void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb);
  60
  61 int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb);
  62
  63 #endif /* __MXSFB_DRV_H__ */