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