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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * R-Car Display Unit DRM driver4 *5 * Copyright (C) 2013-2015 Renesas Electronics Corporation6 *7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)8 */9 10#ifndef __RCAR_DU_DRV_H__11#define __RCAR_DU_DRV_H__12 13#include <linux/kernel.h>14#include <linux/wait.h>15 16#include <drm/drm_device.h>17 18#include "rcar_cmm.h"19#include "rcar_du_crtc.h"20#include "rcar_du_group.h"21#include "rcar_du_vsp.h"22 23struct clk;24struct device;25struct drm_bridge;26struct drm_property;27struct rcar_du_device;28 29#define RCAR_DU_FEATURE_CRTC_IRQ BIT(0) /* Per-CRTC IRQ */30#define RCAR_DU_FEATURE_CRTC_CLOCK BIT(1) /* Per-CRTC clock */31#define RCAR_DU_FEATURE_VSP1_SOURCE BIT(2) /* Has inputs from VSP1 */32#define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */33#define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */34#define RCAR_DU_FEATURE_NO_BLENDING BIT(5) /* PnMR.SPIM does not have ALP nor EOR bits */35 36#define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */37 38enum rcar_du_output {39 RCAR_DU_OUTPUT_DPAD0,40 RCAR_DU_OUTPUT_DPAD1,41 RCAR_DU_OUTPUT_DSI0,42 RCAR_DU_OUTPUT_DSI1,43 RCAR_DU_OUTPUT_HDMI0,44 RCAR_DU_OUTPUT_HDMI1,45 RCAR_DU_OUTPUT_LVDS0,46 RCAR_DU_OUTPUT_LVDS1,47 RCAR_DU_OUTPUT_TCON,48 RCAR_DU_OUTPUT_MAX,49};50 51/*52 * struct rcar_du_output_routing - Output routing specification53 * @possible_crtcs: bitmask of possible CRTCs for the output54 * @port: device tree port number corresponding to this output route55 *56 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data57 * specify the valid SoC outputs, which CRTCs can drive the output, and the type58 * of in-SoC encoder for the output.59 */60struct rcar_du_output_routing {61 unsigned int possible_crtcs;62 unsigned int port;63};64 65/*66 * struct rcar_du_device_info - DU model-specific information67 * @gen: device generation (2 or 3)68 * @features: device features (RCAR_DU_FEATURE_*)69 * @quirks: device quirks (RCAR_DU_QUIRK_*)70 * @channels_mask: bit mask of available DU channels71 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)72 * @num_lvds: number of internal LVDS encoders73 * @num_rpf: number of RPFs in VSP74 * @dpll_mask: bit mask of DU channels equipped with a DPLL75 * @dsi_clk_mask: bitmask of channels that can use the DSI clock as dot clock76 * @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock77 */78struct rcar_du_device_info {79 unsigned int gen;80 unsigned int features;81 unsigned int quirks;82 unsigned int channels_mask;83 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];84 unsigned int num_lvds;85 unsigned int num_rpf;86 unsigned int dpll_mask;87 unsigned int dsi_clk_mask;88 unsigned int lvds_clk_mask;89};90 91#define RCAR_DU_MAX_CRTCS 492#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)93#define RCAR_DU_MAX_VSPS 494#define RCAR_DU_MAX_LVDS 295#define RCAR_DU_MAX_DSI 296 97struct rcar_du_device {98 struct device *dev;99 const struct rcar_du_device_info *info;100 101 void __iomem *mmio;102 103 struct drm_device ddev;104 105 struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];106 unsigned int num_crtcs;107 108 struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];109 struct platform_device *cmms[RCAR_DU_MAX_CRTCS];110 struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];111 struct drm_bridge *lvds[RCAR_DU_MAX_LVDS];112 struct drm_bridge *dsi[RCAR_DU_MAX_DSI];113 114 struct {115 struct drm_property *colorkey;116 } props;117 118 unsigned int dpad0_source;119 unsigned int dpad1_source;120 unsigned int vspd1_sink;121};122 123static inline struct rcar_du_device *to_rcar_du_device(struct drm_device *dev)124{125 return container_of(dev, struct rcar_du_device, ddev);126}127 128static inline bool rcar_du_has(struct rcar_du_device *rcdu,129 unsigned int feature)130{131 return rcdu->info->features & feature;132}133 134static inline bool rcar_du_needs(struct rcar_du_device *rcdu,135 unsigned int quirk)136{137 return rcdu->info->quirks & quirk;138}139 140static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)141{142 return ioread32(rcdu->mmio + reg);143}144 145static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)146{147 iowrite32(data, rcdu->mmio + reg);148}149 150const char *rcar_du_output_name(enum rcar_du_output output);151 152#endif /* __RCAR_DU_DRV_H__ */153