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"
27 struct rcar_du_device;
28 struct rcar_du_lvdsenc;
30 #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
31 #define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */
32 #define RCAR_DU_FEATURE_DEFR8 (1 << 2) /* Has DEFR8 register */
35 * struct rcar_du_output_routing - Output routing specification
36 * @possible_crtcs: bitmask of possible CRTCs for the output
37 * @encoder_type: DRM type of the internal encoder associated with the output
39 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
40 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
41 * of in-SoC encoder for the output.
43 struct rcar_du_output_routing {
44 unsigned int possible_crtcs;
45 unsigned int encoder_type;
49 * struct rcar_du_device_info - DU model-specific information
50 * @features: device features (RCAR_DU_FEATURE_*)
51 * @num_crtcs: total number of CRTCs
52 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
53 * @num_lvds: number of internal LVDS encoders
55 struct rcar_du_device_info {
56 unsigned int features;
57 unsigned int num_crtcs;
58 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
59 unsigned int num_lvds;
62 struct rcar_du_device {
64 const struct rcar_du_platform_data *pdata;
65 const struct rcar_du_device_info *info;
69 struct drm_device *ddev;
70 struct drm_fbdev_cma *fbdev;
72 struct rcar_du_crtc crtcs[3];
73 unsigned int num_crtcs;
75 struct rcar_du_group groups[2];
77 unsigned int dpad0_source;
78 struct rcar_du_lvdsenc *lvds[2];
81 static inline bool rcar_du_has(struct rcar_du_device *rcdu,
84 return rcdu->info->features & feature;
87 static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
89 return ioread32(rcdu->mmio + reg);
92 static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
94 iowrite32(data, rcdu->mmio + reg);
97 #endif /* __RCAR_DU_DRV_H__ */