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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * Copyright (C) 2022 Amarula Solutions(India)4 * Author: Jagan Teki <jagan@amarulasolutions.com>5 */6 7#ifndef __SAMSUNG_DSIM__8#define __SAMSUNG_DSIM__9 10#include <linux/gpio/consumer.h>11#include <linux/regulator/consumer.h>12 13#include <drm/drm_atomic_helper.h>14#include <drm/drm_bridge.h>15#include <drm/drm_mipi_dsi.h>16#include <drm/drm_of.h>17 18struct platform_device;19struct samsung_dsim;20 21#define DSIM_STATE_ENABLED BIT(0)22#define DSIM_STATE_INITIALIZED BIT(1)23#define DSIM_STATE_CMD_LPM BIT(2)24#define DSIM_STATE_VIDOUT_AVAILABLE BIT(3)25 26enum samsung_dsim_type {27 DSIM_TYPE_EXYNOS3250,28 DSIM_TYPE_EXYNOS4210,29 DSIM_TYPE_EXYNOS5410,30 DSIM_TYPE_EXYNOS5422,31 DSIM_TYPE_EXYNOS5433,32 DSIM_TYPE_IMX8MM,33 DSIM_TYPE_IMX8MP,34 DSIM_TYPE_COUNT,35};36 37#define samsung_dsim_hw_is_exynos(hw) \38 ((hw) >= DSIM_TYPE_EXYNOS3250 && (hw) <= DSIM_TYPE_EXYNOS5433)39 40struct samsung_dsim_transfer {41 struct list_head list;42 struct completion completed;43 int result;44 struct mipi_dsi_packet packet;45 u16 flags;46 u16 tx_done;47 48 u8 *rx_payload;49 u16 rx_len;50 u16 rx_done;51};52 53struct samsung_dsim_driver_data {54 const unsigned int *reg_ofs;55 unsigned int plltmr_reg;56 unsigned int has_freqband:1;57 unsigned int has_clklane_stop:1;58 unsigned int has_broken_fifoctrl_emptyhdr:1;59 unsigned int num_clks;60 unsigned int min_freq;61 unsigned int max_freq;62 unsigned int wait_for_reset;63 unsigned int num_bits_resol;64 unsigned int pll_p_offset;65 const unsigned int *reg_values;66 unsigned int pll_fin_min;67 unsigned int pll_fin_max;68 u16 m_min;69 u16 m_max;70};71 72struct samsung_dsim_host_ops {73 int (*register_host)(struct samsung_dsim *dsim);74 void (*unregister_host)(struct samsung_dsim *dsim);75 int (*attach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);76 void (*detach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);77 irqreturn_t (*te_irq_handler)(struct samsung_dsim *dsim);78};79 80struct samsung_dsim_plat_data {81 enum samsung_dsim_type hw_type;82 const struct samsung_dsim_host_ops *host_ops;83};84 85struct samsung_dsim {86 struct mipi_dsi_host dsi_host;87 struct drm_bridge bridge;88 struct drm_bridge *out_bridge;89 struct device *dev;90 struct drm_display_mode mode;91 92 void __iomem *reg_base;93 struct phy *phy;94 struct clk **clks;95 struct clk *pll_clk;96 struct regulator_bulk_data supplies[2];97 int irq;98 struct gpio_desc *te_gpio;99 100 u32 pll_clk_rate;101 u32 burst_clk_rate;102 u32 hs_clock;103 u32 esc_clk_rate;104 u32 lanes;105 u32 mode_flags;106 u32 format;107 108 bool swap_dn_dp_clk;109 bool swap_dn_dp_data;110 int state;111 struct drm_property *brightness;112 struct completion completed;113 114 spinlock_t transfer_lock; /* protects transfer_list */115 struct list_head transfer_list;116 117 const struct samsung_dsim_driver_data *driver_data;118 const struct samsung_dsim_plat_data *plat_data;119 120 void *priv;121};122 123extern int samsung_dsim_probe(struct platform_device *pdev);124extern void samsung_dsim_remove(struct platform_device *pdev);125extern const struct dev_pm_ops samsung_dsim_pm_ops;126 127#endif /* __SAMSUNG_DSIM__ */128