// SPDX-License-Identifier: GPL-2.0-only /* * Copyright(c) 2020, Analogix Semiconductor. All rights reserved. * */ #include <linux/gcd.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/workqueue.h> #include <linux/of_graph.h> #include <linux/of_platform.h> #include <drm/display/drm_dp_aux_bus.h> #include <drm/display/drm_dp_helper.h> #include <drm/display/drm_hdcp_helper.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_edid.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> #include <media/v4l2-fwnode.h> #include <sound/hdmi-codec.h> #include <video/display_timing.h> #include "anx7625.h" /* * There is a sync issue while access I2C register between AP(CPU) and * internal firmware(OCM), to avoid the race condition, AP should access * the reserved slave address before slave address occurs changes. */ static int i2c_access_workaround(struct anx7625_data *ctx, struct i2c_client *client) { … } static int anx7625_reg_read(struct anx7625_data *ctx, struct i2c_client *client, u8 reg_addr) { … } static int anx7625_reg_block_read(struct anx7625_data *ctx, struct i2c_client *client, u8 reg_addr, u8 len, u8 *buf) { … } static int anx7625_reg_write(struct anx7625_data *ctx, struct i2c_client *client, u8 reg_addr, u8 reg_val) { … } static int anx7625_reg_block_write(struct anx7625_data *ctx, struct i2c_client *client, u8 reg_addr, u8 len, u8 *buf) { … } static int anx7625_write_or(struct anx7625_data *ctx, struct i2c_client *client, u8 offset, u8 mask) { … } static int anx7625_write_and(struct anx7625_data *ctx, struct i2c_client *client, u8 offset, u8 mask) { … } static int anx7625_write_and_or(struct anx7625_data *ctx, struct i2c_client *client, u8 offset, u8 and_mask, u8 or_mask) { … } static int anx7625_config_bit_matrix(struct anx7625_data *ctx) { … } static int anx7625_read_ctrl_status_p0(struct anx7625_data *ctx) { … } static int wait_aux_op_finish(struct anx7625_data *ctx) { … } static int anx7625_aux_trans(struct anx7625_data *ctx, u8 op, u32 address, u8 len, u8 *buf) { … } static int anx7625_video_mute_control(struct anx7625_data *ctx, u8 status) { … } /* Reduction of fraction a/b */ static void anx7625_reduction_of_a_fraction(unsigned long *a, unsigned long *b) { … } static int anx7625_calculate_m_n(u32 pixelclock, unsigned long *m, unsigned long *n, u8 *post_divider) { … } static int anx7625_odfc_config(struct anx7625_data *ctx, u8 post_divider) { … } /* * The MIPI source video data exist large variation (e.g. 59Hz ~ 61Hz), * anx7625 defined K ratio for matching MIPI input video clock and * DP output video clock. Increase K value can match bigger video data * variation. IVO panel has small variation than DP CTS spec, need * decrease the K value. */ static int anx7625_set_k_value(struct anx7625_data *ctx) { … } static int anx7625_dsi_video_timing_config(struct anx7625_data *ctx) { … } static int anx7625_swap_dsi_lane3(struct anx7625_data *ctx) { … } static int anx7625_api_dsi_config(struct anx7625_data *ctx) { … } static int anx7625_dsi_config(struct anx7625_data *ctx) { … } static int anx7625_api_dpi_config(struct anx7625_data *ctx) { … } static int anx7625_dpi_config(struct anx7625_data *ctx) { … } static int anx7625_read_flash_status(struct anx7625_data *ctx) { … } static int anx7625_hdcp_key_probe(struct anx7625_data *ctx) { … } static int anx7625_hdcp_key_load(struct anx7625_data *ctx) { … } static int anx7625_hdcp_disable(struct anx7625_data *ctx) { … } static int anx7625_hdcp_enable(struct anx7625_data *ctx) { … } static void anx7625_dp_start(struct anx7625_data *ctx) { … } static void anx7625_dp_stop(struct anx7625_data *ctx) { … } static int sp_tx_rst_aux(struct anx7625_data *ctx) { … } static int sp_tx_aux_wr(struct anx7625_data *ctx, u8 offset) { … } static int sp_tx_aux_rd(struct anx7625_data *ctx, u8 len_cmd) { … } static int sp_tx_get_edid_block(struct anx7625_data *ctx) { … } static int edid_read(struct anx7625_data *ctx, u8 offset, u8 *pblock_buf) { … } static int segments_edid_read(struct anx7625_data *ctx, u8 segment, u8 *buf, u8 offset) { … } static int sp_tx_edid_read(struct anx7625_data *ctx, u8 *pedid_blocks_buf) { … } static void anx7625_power_on(struct anx7625_data *ctx) { … } static void anx7625_power_standby(struct anx7625_data *ctx) { … } /* Basic configurations of ANX7625 */ static void anx7625_config(struct anx7625_data *ctx) { … } static int anx7625_hpd_timer_config(struct anx7625_data *ctx) { … } static int anx7625_read_hpd_gpio_config_status(struct anx7625_data *ctx) { … } static void anx7625_disable_pd_protocol(struct anx7625_data *ctx) { … } static int anx7625_ocm_loading_check(struct anx7625_data *ctx) { … } static void anx7625_power_on_init(struct anx7625_data *ctx) { … } static void anx7625_init_gpio(struct anx7625_data *platform) { … } static void anx7625_stop_dp_work(struct anx7625_data *ctx) { … } static void anx7625_start_dp_work(struct anx7625_data *ctx) { … } static int anx7625_read_hpd_status_p0(struct anx7625_data *ctx) { … } static int _anx7625_hpd_polling(struct anx7625_data *ctx, unsigned long wait_us) { … } static int anx7625_wait_hpd_asserted(struct drm_dp_aux *aux, unsigned long wait_us) { … } static void anx7625_remove_edid(struct anx7625_data *ctx) { … } static void anx7625_dp_adjust_swing(struct anx7625_data *ctx) { … } static void dp_hpd_change_handler(struct anx7625_data *ctx, bool on) { … } static int anx7625_hpd_change_detect(struct anx7625_data *ctx) { … } static void anx7625_work_func(struct work_struct *work) { … } static irqreturn_t anx7625_intr_hpd_isr(int irq, void *data) { … } static int anx7625_get_swing_setting(struct device *dev, struct anx7625_platform_data *pdata) { … } static int anx7625_parse_dt(struct device *dev, struct anx7625_platform_data *pdata) { … } static int anx7625_parse_dt_panel(struct device *dev, struct anx7625_platform_data *pdata) { … } static bool anx7625_of_panel_on_aux_bus(struct device *dev) { … } static inline struct anx7625_data *bridge_to_anx7625(struct drm_bridge *bridge) { … } static ssize_t anx7625_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) { … } static const struct drm_edid *anx7625_edid_read(struct anx7625_data *ctx) { … } static enum drm_connector_status anx7625_sink_detect(struct anx7625_data *ctx) { … } static int anx7625_audio_hw_params(struct device *dev, void *data, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *params) { … } static void anx7625_audio_shutdown(struct device *dev, void *data) { … } static int anx7625_hdmi_i2s_get_dai_id(struct snd_soc_component *component, struct device_node *endpoint) { … } static void anx7625_audio_update_connector_status(struct anx7625_data *ctx, enum drm_connector_status status) { … } static int anx7625_audio_hook_plugged_cb(struct device *dev, void *data, hdmi_codec_plugged_cb fn, struct device *codec_dev) { … } static int anx7625_audio_get_eld(struct device *dev, void *data, u8 *buf, size_t len) { … } static const struct hdmi_codec_ops anx7625_codec_ops = …; static void anx7625_unregister_audio(struct anx7625_data *ctx) { … } static int anx7625_register_audio(struct device *dev, struct anx7625_data *ctx) { … } static int anx7625_setup_dsi_device(struct anx7625_data *ctx) { … } static int anx7625_attach_dsi(struct anx7625_data *ctx) { … } static void hdcp_check_work_func(struct work_struct *work) { … } static int anx7625_connector_atomic_check(struct anx7625_data *ctx, struct drm_connector_state *state) { … } static int anx7625_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { … } static void anx7625_bridge_detach(struct drm_bridge *bridge) { … } static enum drm_mode_status anx7625_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, const struct drm_display_mode *mode) { … } static void anx7625_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *old_mode, const struct drm_display_mode *mode) { … } static bool anx7625_bridge_mode_fixup(struct drm_bridge *bridge, const struct drm_display_mode *mode, struct drm_display_mode *adj) { … } static int anx7625_bridge_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { … } static void anx7625_bridge_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *state) { … } static void anx7625_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_bridge_state *old) { … } static void anx7625_audio_update_connector_status(struct anx7625_data *ctx, enum drm_connector_status status); static enum drm_connector_status anx7625_bridge_detect(struct drm_bridge *bridge) { … } static const struct drm_edid *anx7625_bridge_edid_read(struct drm_bridge *bridge, struct drm_connector *connector) { … } static const struct drm_bridge_funcs anx7625_bridge_funcs = …; static int anx7625_register_i2c_dummy_clients(struct anx7625_data *ctx, struct i2c_client *client) { … } static int __maybe_unused anx7625_runtime_pm_suspend(struct device *dev) { … } static int __maybe_unused anx7625_runtime_pm_resume(struct device *dev) { … } static const struct dev_pm_ops anx7625_pm_ops = …; static void anx7625_runtime_disable(void *data) { … } static int anx7625_link_bridge(struct drm_dp_aux *aux) { … } static int anx7625_i2c_probe(struct i2c_client *client) { … } static void anx7625_i2c_remove(struct i2c_client *client) { … } static const struct i2c_device_id anx7625_id[] = …; MODULE_DEVICE_TABLE(i2c, anx7625_id); static const struct of_device_id anx_match_table[] = …; MODULE_DEVICE_TABLE(of, anx_match_table); static struct i2c_driver anx7625_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…);
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