drm: Renesas R-Car Display Unit DRM driver
[deliverable/linux.git] / drivers / gpu / drm / rcar-du / rcar_du_drv.h
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1/*
2 * rcar_du_drv.h -- R-Car Display Unit DRM driver
3 *
4 * Copyright (C) 2013 Renesas 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_DRV_H__
15#define __RCAR_DU_DRV_H__
16
17#include <linux/kernel.h>
18#include <linux/mutex.h>
19#include <linux/platform_data/rcar-du.h>
20
21#include "rcar_du_crtc.h"
22#include "rcar_du_plane.h"
23
24struct clk;
25struct device;
26struct drm_device;
27
28struct rcar_du_device {
29 struct device *dev;
30 const struct rcar_du_platform_data *pdata;
31
32 void __iomem *mmio;
33 struct clk *clock;
34 unsigned int use_count;
35
36 struct drm_device *ddev;
37
38 struct rcar_du_crtc crtcs[2];
39 unsigned int used_crtcs;
40 unsigned int num_crtcs;
41
42 struct {
43 struct rcar_du_plane planes[RCAR_DU_NUM_SW_PLANES];
44 unsigned int free;
45 struct mutex lock;
46
47 struct drm_property *alpha;
48 struct drm_property *colorkey;
49 struct drm_property *zpos;
50 } planes;
51};
52
53int rcar_du_get(struct rcar_du_device *rcdu);
54void rcar_du_put(struct rcar_du_device *rcdu);
55
56static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
57{
58 return ioread32(rcdu->mmio + reg);
59}
60
61static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
62{
63 iowrite32(data, rcdu->mmio + reg);
64}
65
66#endif /* __RCAR_DU_DRV_H__ */
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