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/* SPDX-License-Identifier: GPL-2.0-only
*
* linux/drivers/gpu/drm/samsung/exynos_drm_dsim.h
*
* Copyright (c) 2018 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Headef file for Samsung MIPI DSI Master driver.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __EXYNOS_DRM_DSI_H__
#define __EXYNOS_DRM_DSI_H__
/* Add header */
#include <drm/drm_encoder.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_property.h>
#include <drm/drm_panel.h>
#include <video/videomode.h>
#include <dsim_cal.h>
#include "exynos_drm_drv.h"
enum dsim_state {
DSIM_STATE_HSCLKEN, /* dsim fully active */
DSIM_STATE_ULPS, /* low power state */
DSIM_STATE_SUSPEND, /* inactive */
DSIM_STATE_BYPASS, /* bypass mode, dsim shouldn't be used */
DSIM_STATE_HANDOVER,
};
enum dsim_dual_dsi {
DSIM_DUAL_DSI_NONE,
DSIM_DUAL_DSI_MAIN,
DSIM_DUAL_DSI_SEC,
};
struct dsim_pll_features {
u64 finput;
u64 foptimum;
u64 fout_min, fout_max;
u64 fvco_min, fvco_max;
u32 p_min, p_max;
u32 m_min, m_max;
u32 s_min, s_max;
u32 k_bits;
};
struct dsim_pll_params {
unsigned int num_modes;
struct dsim_pll_param **params;
struct dsim_pll_features *features;
};
struct dsim_resources {
void __iomem *regs;
void __iomem *phy_regs;
void __iomem *phy_regs_ex;
void __iomem *ss_reg_base;
struct phy *phy;
struct phy *phy_ex;
};
struct dsim_device {
struct drm_encoder encoder;
struct mipi_dsi_host dsi_host;
struct device *dev;
struct drm_bridge *panel_bridge;
struct mipi_dsi_device *dsi_device;
struct device_link *dev_link;
enum exynos_drm_output_type output_type;
int te_from;
int te_gpio;
int err_fg_gpio;
struct pinctrl *pinctrl;
struct pinctrl_state *te_on;
struct pinctrl_state *te_off;
bool hw_trigger;
struct dsim_resources res;
struct clk **clks;
struct dsim_pll_params *pll_params;
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_entry;
#endif
int irq;
int irq_err_fg;
int id;
spinlock_t slock;
struct mutex cmd_lock;
struct mutex state_lock;
struct completion ph_wr_comp;
struct completion pl_wr_comp;
struct completion rd_comp;
enum dsim_state state;
enum dsim_state suspend_state;
/* set bist mode by sysfs */
unsigned int bist_mode;
/* FIXME: dsim cal structure */
struct dsim_reg_config config;
struct dsim_clks clk_param;
struct dsim_pll_param *current_pll_param;
int idle_ip_index;
u8 total_pend_ph;
u16 total_pend_pl;
/* override message flag MIPI_DSI_MSG_LASTCOMMAND */
bool force_batching;
enum dsim_dual_dsi dual_dsi;
};
extern struct dsim_device *dsim_drvdata[MAX_DSI_CNT];
#define encoder_to_dsim(e) container_of(e, struct dsim_device, encoder)
#define MIPI_WR_TIMEOUT msecs_to_jiffies(80)
#define MIPI_RD_TIMEOUT msecs_to_jiffies(100)
struct decon_device;
static inline struct dsim_device *
exynos_get_dual_dsi(enum dsim_dual_dsi dual_dsi)
{
int i;
struct dsim_device *dsim = NULL;
for (i = 0; i < MAX_DSI_CNT; i++) {
dsim = dsim_drvdata[i];
if (dsim->dual_dsi == dual_dsi)
return dsim;
}
return NULL;
}
static inline const struct decon_device *
dsim_get_decon(const struct dsim_device *dsim)
{
const struct drm_crtc *crtc = dsim->encoder.crtc;
struct dsim_device *main_dsi;
if (dsim->dual_dsi == DSIM_DUAL_DSI_SEC) {
main_dsi = exynos_get_dual_dsi(DSIM_DUAL_DSI_MAIN);
crtc = main_dsi->encoder.crtc;
}
if (!crtc)
return NULL;
return to_exynos_crtc(crtc)->ctx;
}
#ifdef CONFIG_DEBUG_FS
void dsim_diag_create_debugfs(struct dsim_device *dsim);
void dsim_diag_remove_debugfs(struct dsim_device *dsim);
int dsim_dphy_diag_get_reg(struct dsim_device *dsim,
struct dsim_dphy_diag *diag, uint32_t *vals);
int dsim_dphy_diag_set_reg(struct dsim_device *dsim,
struct dsim_dphy_diag *diag, uint32_t val);
#endif
#endif /* __EXYNOS_DRM_DSI_H__ */
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