2 * rcar_du_drv.h -- R-Car Display Unit DRM driver
4 * Copyright (C) 2013 Renesas Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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.
14 #ifndef __RCAR_DU_DRV_H__
15 #define __RCAR_DU_DRV_H__
17 #include <linux/kernel.h>
18 #include <linux/platform_data/rcar-du.h>
20 #include "rcar_du_crtc.h"
21 #include "rcar_du_group.h"
26 struct rcar_du_device;
28 #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
29 #define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */
30 #define RCAR_DU_FEATURE_DEFR8 (1 << 2) /* Has DEFR8 register */
33 * struct rcar_du_output_routing - Output routing specification
34 * @possible_crtcs: bitmask of possible CRTCs for the output
35 * @encoder_type: DRM type of the internal encoder associated with the output
37 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
38 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
39 * of in-SoC encoder for the output.
41 struct rcar_du_output_routing {
42 unsigned int possible_crtcs;
43 unsigned int encoder_type;
47 * struct rcar_du_device_info - DU model-specific information
48 * @features: device features (RCAR_DU_FEATURE_*)
49 * @num_crtcs: total number of CRTCs
50 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
52 struct rcar_du_device_info {
53 unsigned int features;
54 unsigned int num_crtcs;
55 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
58 struct rcar_du_device {
60 const struct rcar_du_platform_data *pdata;
61 const struct rcar_du_device_info *info;
65 struct drm_device *ddev;
67 struct rcar_du_crtc crtcs[3];
68 unsigned int num_crtcs;
70 struct rcar_du_group groups[2];
72 unsigned int dpad0_source;
75 static inline bool rcar_du_has(struct rcar_du_device *rcdu,
78 return rcdu->info->features & feature;
81 static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
83 return ioread32(rcdu->mmio + reg);
86 static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
88 iowrite32(data, rcdu->mmio + reg);
91 #endif /* __RCAR_DU_DRV_H__ */