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_DEFR8 (1 << 1) /* Has DEFR8 register */
33 #define RCAR_DU_QUIRK_ALIGN_128B (1 << 0) /* Align pitches to 128 bytes */
34 #define RCAR_DU_QUIRK_LVDS_LANES (1 << 1) /* LVDS lanes 1 and 3 inverted */
37 * struct rcar_du_output_routing - Output routing specification
38 * @possible_crtcs: bitmask of possible CRTCs for the output
39 * @encoder_type: DRM type of the internal encoder associated with the output
41 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
42 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
43 * of in-SoC encoder for the output.
45 struct rcar_du_output_routing
{
46 unsigned int possible_crtcs
;
47 unsigned int encoder_type
;
51 * struct rcar_du_device_info - DU model-specific information
52 * @features: device features (RCAR_DU_FEATURE_*)
53 * @quirks: device quirks (RCAR_DU_QUIRK_*)
54 * @num_crtcs: total number of CRTCs
55 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
56 * @num_lvds: number of internal LVDS encoders
58 struct rcar_du_device_info
{
59 unsigned int features
;
61 unsigned int num_crtcs
;
62 struct rcar_du_output_routing routes
[RCAR_DU_OUTPUT_MAX
];
63 unsigned int num_lvds
;
66 struct rcar_du_device
{
68 const struct rcar_du_platform_data
*pdata
;
69 const struct rcar_du_device_info
*info
;
73 struct drm_device
*ddev
;
74 struct drm_fbdev_cma
*fbdev
;
76 struct rcar_du_crtc crtcs
[3];
77 unsigned int num_crtcs
;
79 struct rcar_du_group groups
[2];
81 unsigned int dpad0_source
;
82 struct rcar_du_lvdsenc
*lvds
[2];
85 static inline bool rcar_du_has(struct rcar_du_device
*rcdu
,
88 return rcdu
->info
->features
& feature
;
91 static inline bool rcar_du_needs(struct rcar_du_device
*rcdu
,
94 return rcdu
->info
->quirks
& quirk
;
97 static inline u32
rcar_du_read(struct rcar_du_device
*rcdu
, u32 reg
)
99 return ioread32(rcdu
->mmio
+ reg
);
102 static inline void rcar_du_write(struct rcar_du_device
*rcdu
, u32 reg
, u32 data
)
104 iowrite32(data
, rcdu
->mmio
+ reg
);
107 #endif /* __RCAR_DU_DRV_H__ */