// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) STMicroelectronics SA 2017 * * Authors: Philippe Cornu <[email protected]> * Yannick Fertre <[email protected]> */ #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <video/mipi_display.h> #include <drm/bridge/dw_mipi_dsi.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_print.h> #define HWVER_130 … #define HWVER_131 … /* DSI digital registers & bit definitions */ #define DSI_VERSION … #define VERSION … /* DSI wrapper registers & bit definitions */ /* Note: registers are named as in the Reference Manual */ #define DSI_WCFGR … #define WCFGR_DSIM … #define WCFGR_COLMUX … #define DSI_WCR … #define WCR_DSIEN … #define DSI_WISR … #define WISR_PLLLS … #define WISR_RRS … #define DSI_WPCR0 … #define WPCR0_UIX4 … #define WPCR0_TDDL … #define DSI_WRPCR … #define WRPCR_PLLEN … #define WRPCR_NDIV … #define WRPCR_IDF … #define WRPCR_ODF … #define WRPCR_REGEN … #define WRPCR_BGREN … #define IDF_MIN … #define IDF_MAX … #define NDIV_MIN … #define NDIV_MAX … #define ODF_MIN … #define ODF_MAX … /* dsi color format coding according to the datasheet */ enum dsi_color { … }; #define LANE_MIN_KBPS … #define LANE_MAX_KBPS … /* Sleep & timeout for regulator on/off, pll lock/unlock & fifo empty */ #define SLEEP_US … #define TIMEOUT_US … struct dw_mipi_dsi_stm { … }; static inline void dsi_write(struct dw_mipi_dsi_stm *dsi, u32 reg, u32 val) { … } static inline u32 dsi_read(struct dw_mipi_dsi_stm *dsi, u32 reg) { … } static inline void dsi_set(struct dw_mipi_dsi_stm *dsi, u32 reg, u32 mask) { … } static inline void dsi_clear(struct dw_mipi_dsi_stm *dsi, u32 reg, u32 mask) { … } static inline void dsi_update_bits(struct dw_mipi_dsi_stm *dsi, u32 reg, u32 mask, u32 val) { … } static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt) { … } static int dsi_pll_get_clkout_khz(int clkin_khz, int idf, int ndiv, int odf) { … } static int dsi_pll_get_params(struct dw_mipi_dsi_stm *dsi, int clkin_khz, int clkout_khz, int *idf, int *ndiv, int *odf) { … } #define clk_to_dw_mipi_dsi_stm(clk) … static void dw_mipi_dsi_clk_disable(struct clk_hw *clk) { … } static int dw_mipi_dsi_clk_enable(struct clk_hw *clk) { … } static int dw_mipi_dsi_clk_is_enabled(struct clk_hw *hw) { … } static unsigned long dw_mipi_dsi_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { … } static long dw_mipi_dsi_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { … } static int dw_mipi_dsi_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { … } static void dw_mipi_dsi_clk_unregister(void *data) { … } static const struct clk_ops dw_mipi_dsi_stm_clk_ops = …; static struct clk_init_data cdata_init = …; static int dw_mipi_dsi_clk_register(struct dw_mipi_dsi_stm *dsi, struct device *dev) { … } static int dw_mipi_dsi_phy_init(void *priv_data) { … } static void dw_mipi_dsi_phy_power_on(void *priv_data) { … } static void dw_mipi_dsi_phy_power_off(void *priv_data) { … } static int dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode, unsigned long mode_flags, u32 lanes, u32 format, unsigned int *lane_mbps) { … } #define DSI_PHY_DELAY(fp, vp, mbps) … static int dw_mipi_dsi_phy_get_timing(void *priv_data, unsigned int lane_mbps, struct dw_mipi_dsi_dphy_timing *timing) { … } #define CLK_TOLERANCE_HZ … static enum drm_mode_status dw_mipi_dsi_stm_mode_valid(void *priv_data, const struct drm_display_mode *mode, unsigned long mode_flags, u32 lanes, u32 format) { … } static const struct dw_mipi_dsi_phy_ops dw_mipi_dsi_stm_phy_ops = …; static struct dw_mipi_dsi_plat_data dw_mipi_dsi_stm_plat_data = …; static const struct of_device_id dw_mipi_dsi_stm_dt_ids[] = …; MODULE_DEVICE_TABLE(of, dw_mipi_dsi_stm_dt_ids); static int dw_mipi_dsi_stm_probe(struct platform_device *pdev) { … } static void dw_mipi_dsi_stm_remove(struct platform_device *pdev) { … } static int dw_mipi_dsi_stm_suspend(struct device *dev) { … } static int dw_mipi_dsi_stm_resume(struct device *dev) { … } static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = …; static struct platform_driver dw_mipi_dsi_stm_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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