1/* 2 * rcar_du_drv.h -- R-Car Display Unit DRM driver 3 * 4 * Copyright (C) 2013-2014 Renesas Electronics 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/platform_data/rcar-du.h> 19 20#include "rcar_du_crtc.h" 21#include "rcar_du_group.h" 22 23struct clk; 24struct device; 25struct drm_device; 26struct drm_fbdev_cma; 27struct rcar_du_device; 28struct rcar_du_lvdsenc; 29 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 */ 32 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 */ 35 36/* 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 40 * @port: device tree port number corresponding to this output route 41 * 42 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data 43 * specify the valid SoC outputs, which CRTCs can drive the output, and the type 44 * of in-SoC encoder for the output. 45 */ 46struct rcar_du_output_routing { 47 unsigned int possible_crtcs; 48 unsigned int encoder_type; 49 unsigned int port; 50}; 51 52/* 53 * struct rcar_du_device_info - DU model-specific information 54 * @features: device features (RCAR_DU_FEATURE_*) 55 * @quirks: device quirks (RCAR_DU_QUIRK_*) 56 * @num_crtcs: total number of CRTCs 57 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*) 58 * @num_lvds: number of internal LVDS encoders 59 */ 60struct rcar_du_device_info { 61 unsigned int features; 62 unsigned int quirks; 63 unsigned int num_crtcs; 64 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX]; 65 unsigned int num_lvds; 66}; 67 68struct rcar_du_device { 69 struct device *dev; 70 const struct rcar_du_platform_data *pdata; 71 const struct rcar_du_device_info *info; 72 73 void __iomem *mmio; 74 75 struct drm_device *ddev; 76 struct drm_fbdev_cma *fbdev; 77 78 struct rcar_du_crtc crtcs[3]; 79 unsigned int num_crtcs; 80 81 struct rcar_du_group groups[2]; 82 83 unsigned int dpad0_source; 84 struct rcar_du_lvdsenc *lvds[2]; 85}; 86 87static inline bool rcar_du_has(struct rcar_du_device *rcdu, 88 unsigned int feature) 89{ 90 return rcdu->info->features & feature; 91} 92 93static inline bool rcar_du_needs(struct rcar_du_device *rcdu, 94 unsigned int quirk) 95{ 96 return rcdu->info->quirks & quirk; 97} 98 99static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg) 100{ 101 return ioread32(rcdu->mmio + reg); 102} 103 104static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data) 105{ 106 iowrite32(data, rcdu->mmio + reg); 107} 108 109#endif /* __RCAR_DU_DRV_H__ */ 110