LXR linux/drivers/gpu/drm/arc/arcpgu.h

   1/*
   2 * ARC PGU DRM driver.
   3 *
   4 * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 */
  16
  17#ifndef _ARCPGU_H_
  18#define _ARCPGU_H_
  19
  20struct arcpgu_drm_private {
  21        void __iomem            *regs;
  22        struct clk              *clk;
  23        struct drm_fbdev_cma    *fbdev;
  24        struct drm_framebuffer  *fb;
  25        struct drm_crtc         crtc;
  26        struct drm_plane        *plane;
  27};
  28
  29#define crtc_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, crtc)
  30
  31static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu,
  32                                 unsigned int reg, u32 value)
  33{
  34        iowrite32(value, arcpgu->regs + reg);
  35}
  36
  37static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu,
  38                               unsigned int reg)
  39{
  40        return ioread32(arcpgu->regs + reg);
  41}
  42
  43int arc_pgu_setup_crtc(struct drm_device *dev);
  44int arcpgu_drm_hdmi_init(struct drm_device *drm, struct device_node *np);
  45int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np);
  46struct drm_fbdev_cma *arcpgu_fbdev_cma_init(struct drm_device *dev,
  47        unsigned int preferred_bpp, unsigned int num_crtc,
  48        unsigned int max_conn_count);
  49
  50#endif
  51