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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2022 Amarula Solutions(India)
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#ifndef __SAMSUNG_DSIM__
#define __SAMSUNG_DSIM__
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_of.h>
#include <drm/drm_mipi_dsi.h>
struct samsung_dsim;
#define DSIM_STATE_ENABLED BIT(0)
#define DSIM_STATE_INITIALIZED BIT(1)
#define DSIM_STATE_CMD_LPM BIT(2)
#define DSIM_STATE_VIDOUT_AVAILABLE BIT(3)
enum samsung_dsim_type {
DSIM_TYPE_EXYNOS3250,
DSIM_TYPE_EXYNOS4210,
DSIM_TYPE_EXYNOS5410,
DSIM_TYPE_EXYNOS5422,
DSIM_TYPE_EXYNOS5433,
DSIM_TYPE_IMX8MM,
DSIM_TYPE_IMX8MP,
DSIM_TYPE_COUNT,
};
#define samsung_dsim_hw_is_exynos(hw) \
((hw) >= DSIM_TYPE_EXYNOS3250 && (hw) <= DSIM_TYPE_EXYNOS5433)
struct samsung_dsim_transfer {
struct list_head list;
struct completion completed;
int result;
struct mipi_dsi_packet packet;
u16 flags;
u16 tx_done;
u8 *rx_payload;
u16 rx_len;
u16 rx_done;
};
struct samsung_dsim_driver_data {
const unsigned int *reg_ofs;
unsigned int plltmr_reg;
unsigned int has_freqband:1;
unsigned int has_clklane_stop:1;
unsigned int has_broken_fifoctrl_emptyhdr:1;
unsigned int num_clks;
unsigned int min_freq;
unsigned int max_freq;
unsigned int wait_for_reset;
unsigned int num_bits_resol;
unsigned int pll_p_offset;
const unsigned int *reg_values;
u16 m_min;
u16 m_max;
};
struct samsung_dsim_host_ops {
int (*register_host)(struct samsung_dsim *dsim);
void (*unregister_host)(struct samsung_dsim *dsim);
int (*attach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);
void (*detach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);
irqreturn_t (*te_irq_handler)(struct samsung_dsim *dsim);
};
struct samsung_dsim_plat_data {
enum samsung_dsim_type hw_type;
const struct samsung_dsim_host_ops *host_ops;
};
struct samsung_dsim {
struct mipi_dsi_host dsi_host;
struct drm_bridge bridge;
struct drm_bridge *out_bridge;
struct device *dev;
struct drm_display_mode mode;
void __iomem *reg_base;
struct phy *phy;
struct clk **clks;
struct regulator_bulk_data supplies[2];
int irq;
struct gpio_desc *te_gpio;
u32 pll_clk_rate;
u32 burst_clk_rate;
u32 hs_clock;
u32 esc_clk_rate;
u32 lanes;
u32 mode_flags;
u32 format;
bool swap_dn_dp_clk;
bool swap_dn_dp_data;
int state;
struct drm_property *brightness;
struct completion completed;
spinlock_t transfer_lock; /* protects transfer_list */
struct list_head transfer_list;
const struct samsung_dsim_driver_data *driver_data;
const struct samsung_dsim_plat_data *plat_data;
void *priv;
};
extern int samsung_dsim_probe(struct platform_device *pdev);
extern int samsung_dsim_remove(struct platform_device *pdev);
extern const struct dev_pm_ops samsung_dsim_pm_ops;
#endif /* __SAMSUNG_DSIM__ */
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