// SPDX-License-Identifier: GPL-2.0-or-later /* * Analogix DP (Display Port) core interface driver. * * Copyright (C) 2012 Samsung Electronics Co., Ltd. * Author: Jingoo Han <[email protected]> */ #include <linux/clk.h> #include <linux/component.h> #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <drm/bridge/analogix_dp.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_crtc.h> #include <drm/drm_device.h> #include <drm/drm_edid.h> #include <drm/drm_panel.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> #include "analogix_dp_core.h" #include "analogix_dp_reg.h" #define to_dp(nm) … static const bool verify_fast_training; struct bridge_init { … }; static void analogix_dp_init_dp(struct analogix_dp_device *dp) { … } static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) { … } static bool analogix_dp_detect_sink_psr(struct analogix_dp_device *dp) { … } static int analogix_dp_enable_sink_psr(struct analogix_dp_device *dp) { … } static int analogix_dp_enable_rx_to_enhanced_mode(struct analogix_dp_device *dp, bool enable) { … } static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp, u8 *enhanced_mode_support) { … } static int analogix_dp_set_enhanced_mode(struct analogix_dp_device *dp) { … } static int analogix_dp_training_pattern_dis(struct analogix_dp_device *dp) { … } static int analogix_dp_link_start(struct analogix_dp_device *dp) { … } static unsigned char analogix_dp_get_lane_status(u8 link_status[2], int lane) { … } static int analogix_dp_clock_recovery_ok(u8 link_status[2], int lane_count) { … } static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align, int lane_count) { … } static unsigned char analogix_dp_get_adjust_request_voltage(u8 adjust_request[2], int lane) { … } static unsigned char analogix_dp_get_adjust_request_pre_emphasis( u8 adjust_request[2], int lane) { … } static void analogix_dp_reduce_link_rate(struct analogix_dp_device *dp) { … } static void analogix_dp_get_adjust_training_lane(struct analogix_dp_device *dp, u8 adjust_request[2]) { … } static int analogix_dp_process_clock_recovery(struct analogix_dp_device *dp) { … } static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp) { … } static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp, u8 *bandwidth) { … } static void analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp, u8 *lane_count) { … } static int analogix_dp_full_link_train(struct analogix_dp_device *dp, u32 max_lanes, u32 max_rate) { … } static int analogix_dp_fast_link_train(struct analogix_dp_device *dp) { … } static int analogix_dp_train_link(struct analogix_dp_device *dp) { … } static int analogix_dp_config_video(struct analogix_dp_device *dp) { … } static int analogix_dp_enable_scramble(struct analogix_dp_device *dp, bool enable) { … } static irqreturn_t analogix_dp_hardirq(int irq, void *arg) { … } static irqreturn_t analogix_dp_irq_thread(int irq, void *arg) { … } static int analogix_dp_fast_link_train_detection(struct analogix_dp_device *dp) { … } static int analogix_dp_commit(struct analogix_dp_device *dp) { … } static int analogix_dp_enable_psr(struct analogix_dp_device *dp) { … } static int analogix_dp_disable_psr(struct analogix_dp_device *dp) { … } /* * This function is a bit of a catch-all for panel preparation, hopefully * simplifying the logic of functions that need to prepare/unprepare the panel * below. * * If @prepare is true, this function will prepare the panel. Conversely, if it * is false, the panel will be unprepared. * * If @is_modeset_prepare is true, the function will disregard the current state * of the panel and either prepare/unprepare the panel based on @prepare. Once * it finishes, it will update dp->panel_is_modeset to reflect the current state * of the panel. */ static int analogix_dp_prepare_panel(struct analogix_dp_device *dp, bool prepare, bool is_modeset_prepare) { … } static int analogix_dp_get_modes(struct drm_connector *connector) { … } static struct drm_encoder * analogix_dp_best_encoder(struct drm_connector *connector) { … } static int analogix_dp_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) { … } static const struct drm_connector_helper_funcs analogix_dp_connector_helper_funcs = …; static enum drm_connector_status analogix_dp_detect(struct drm_connector *connector, bool force) { … } static const struct drm_connector_funcs analogix_dp_connector_funcs = …; static int analogix_dp_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { … } static struct drm_crtc *analogix_dp_get_old_crtc(struct analogix_dp_device *dp, struct drm_atomic_state *state) { … } static struct drm_crtc *analogix_dp_get_new_crtc(struct analogix_dp_device *dp, struct drm_atomic_state *state) { … } static void analogix_dp_bridge_atomic_pre_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static int analogix_dp_set_bridge(struct analogix_dp_device *dp) { … } static void analogix_dp_bridge_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static void analogix_dp_bridge_disable(struct drm_bridge *bridge) { … } static void analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static void analogix_dp_bridge_atomic_post_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static void analogix_dp_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *orig_mode, const struct drm_display_mode *mode) { … } static const struct drm_bridge_funcs analogix_dp_bridge_funcs = …; static int analogix_dp_create_bridge(struct drm_device *drm_dev, struct analogix_dp_device *dp) { … } static int analogix_dp_dt_parse_pdata(struct analogix_dp_device *dp) { … } static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) { … } struct analogix_dp_device * analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data) { … } EXPORT_SYMBOL_GPL(…); int analogix_dp_suspend(struct analogix_dp_device *dp) { … } EXPORT_SYMBOL_GPL(…); int analogix_dp_resume(struct analogix_dp_device *dp) { … } EXPORT_SYMBOL_GPL(…); int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev) { … } EXPORT_SYMBOL_GPL(…); void analogix_dp_unbind(struct analogix_dp_device *dp) { … } EXPORT_SYMBOL_GPL(…); int analogix_dp_start_crc(struct drm_connector *connector) { … } EXPORT_SYMBOL_GPL(…); int analogix_dp_stop_crc(struct drm_connector *connector) { … } EXPORT_SYMBOL_GPL(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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