drivers/gpu/drm/arc/arcpgu.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * ARC PGU DRM driver.
   4  *
   5  * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
   6  */
   7
   8 #ifndef _ARCPGU_H_
   9 #define _ARCPGU_H_
  10
  11 struct arcpgu_drm_private {
  12         void __iomem            *regs;
  13         struct clk              *clk;
  14         struct drm_framebuffer  *fb;
  15         struct drm_crtc         crtc;
  16         struct drm_plane        *plane;
  17 };
  18
  19 #define crtc_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, crtc)
  20
  21 static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu,
  22                                  unsigned int reg, u32 value)
  23 {
  24         iowrite32(value, arcpgu->regs + reg);
  25 }
  26
  27 static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu,
  28                                unsigned int reg)
  29 {
  30         return ioread32(arcpgu->regs + reg);
  31 }
  32
  33 int arc_pgu_setup_crtc(struct drm_device *dev);
  34 int arcpgu_drm_hdmi_init(struct drm_device *drm, struct device_node *np);
  35 int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np);
  36
  37 #endif