155 lines
4.3 KiB
C
155 lines
4.3 KiB
C
/* 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 */
|
|
#define RCAR_DU_QUIRK_H3_ES1_PCLK_STABILITY BIT(1) /* H3 ES1 has pclk stability issue */
|
|
#define RCAR_DU_QUIRK_H3_ES1_PLL BIT(2) /* H3 ES1 PLL setup differs from non-ES1 */
|
|
|
|
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__ */
|