blob: 02ca2d0e1b55b0aeb20d812e878b9034cbc45cc1 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0+ */
* rcar_du_drv.h -- R-Car Display Unit DRM driver
* Copyright (C) 2013-2015 Renesas Electronics Corporation
* Contact: Laurent Pinchart (
#ifndef __RCAR_DU_DRV_H__
#define __RCAR_DU_DRV_H__
#include <linux/kernel.h>
#include <linux/wait.h>
#include <drm/drm_device.h>
#include "rcar_cmm.h"
#include "rcar_du_crtc.h"
#include "rcar_du_group.h"
#include "rcar_du_vsp.h"
struct clk;
struct device;
struct drm_bridge;
struct drm_property;
struct rcar_du_device;
#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK BIT(0) /* Per-CRTC IRQ and clock */
#define RCAR_DU_FEATURE_VSP1_SOURCE BIT(1) /* Has inputs from VSP1 */
#define RCAR_DU_FEATURE_INTERLACED BIT(2) /* HW supports interlaced */
#define RCAR_DU_FEATURE_TVM_SYNC BIT(3) /* Has TV switch/sync modes */
#define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
* struct rcar_du_output_routing - Output routing specification
* @possible_crtcs: bitmask of possible CRTCs for the output
* @port: device tree port number corresponding to this output route
* The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
* specify the valid SoC outputs, which CRTCs can drive the output, and the type
* of in-SoC encoder for the output.
struct rcar_du_output_routing {
unsigned int possible_crtcs;
unsigned int port;
* struct rcar_du_device_info - DU model-specific information
* @gen: device generation (2 or 3)
* @features: device features (RCAR_DU_FEATURE_*)
* @quirks: device quirks (RCAR_DU_QUIRK_*)
* @channels_mask: bit mask of available DU channels
* @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
* @num_lvds: number of internal LVDS encoders
* @dpll_mask: bit mask of DU channels equipped with a DPLL
* @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock
struct rcar_du_device_info {
unsigned int gen;
unsigned int features;
unsigned int quirks;
unsigned int channels_mask;
struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
unsigned int num_lvds;
unsigned int dpll_mask;
unsigned int lvds_clk_mask;
#define RCAR_DU_MAX_VSPS 4
#define RCAR_DU_MAX_LVDS 2
struct rcar_du_device {
struct device *dev;
const struct rcar_du_device_info *info;
void __iomem *mmio;
struct drm_device ddev;
struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
unsigned int num_crtcs;
struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
struct platform_device *cmms[RCAR_DU_MAX_CRTCS];
struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
struct drm_bridge *lvds[RCAR_DU_MAX_LVDS];
struct {
struct drm_property *colorkey;
} props;
unsigned int dpad0_source;
unsigned int dpad1_source;
unsigned int vspd1_sink;
static inline struct rcar_du_device *to_rcar_du_device(struct drm_device *dev)
return container_of(dev, struct rcar_du_device, ddev);
static inline bool rcar_du_has(struct rcar_du_device *rcdu,
unsigned int feature)
return rcdu->info->features & feature;
static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
unsigned int quirk)
return rcdu->info->quirks & quirk;
static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
return ioread32(rcdu->mmio + reg);
static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
iowrite32(data, rcdu->mmio + reg);
#endif /* __RCAR_DU_DRV_H__ */