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