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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* R-Car Display Unit DRM driver
*
* Copyright (C) 2013-2015 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*/
#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 BIT(0) /* Per-CRTC IRQ */
#define RCAR_DU_FEATURE_CRTC_CLOCK BIT(1) /* Per-CRTC clock */
#define RCAR_DU_FEATURE_VSP1_SOURCE BIT(2) /* Has inputs from VSP1 */
#define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */
#define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */
#define RCAR_DU_FEATURE_NO_BLENDING BIT(5) /* PnMR.SPIM does not have ALP nor EOR bits */
#define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
enum rcar_du_output {
RCAR_DU_OUTPUT_DPAD0,
RCAR_DU_OUTPUT_DPAD1,
RCAR_DU_OUTPUT_DSI0,
RCAR_DU_OUTPUT_DSI1,
RCAR_DU_OUTPUT_HDMI0,
RCAR_DU_OUTPUT_HDMI1,
RCAR_DU_OUTPUT_LVDS0,
RCAR_DU_OUTPUT_LVDS1,
RCAR_DU_OUTPUT_TCON,
RCAR_DU_OUTPUT_MAX,
};
/*
* 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
* @num_rpf: number of RPFs in VSP
* @dpll_mask: bit mask of DU channels equipped with a DPLL
* @dsi_clk_mask: bitmask of channels that can use the DSI clock as dot clock
* @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 num_rpf;
unsigned int dpll_mask;
unsigned int dsi_clk_mask;
unsigned int lvds_clk_mask;
};
#define RCAR_DU_MAX_CRTCS 4
#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
#define RCAR_DU_MAX_VSPS 4
#define RCAR_DU_MAX_LVDS 2
#define RCAR_DU_MAX_DSI 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 drm_bridge *dsi[RCAR_DU_MAX_DSI];
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);
}
const char *rcar_du_output_name(enum rcar_du_output output);
#endif /* __RCAR_DU_DRV_H__ */
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