// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2018, The Linux Foundation. All rights reserved. * Copyright (c) 2019-2020. Linaro Limited. */ #include <linux/firmware.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/wait.h> #include <linux/workqueue.h> #include <sound/hdmi-codec.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_print.h> #include <drm/drm_probe_helper.h> #define EDID_BLOCK_SIZE … #define EDID_NUM_BLOCKS … #define FW_FILE … struct lt9611uxc { … }; #define LT9611_PAGE_CONTROL … static const struct regmap_range_cfg lt9611uxc_ranges[] = …; static const struct regmap_config lt9611uxc_regmap_config = …; struct lt9611uxc_mode { … }; /* * This chip supports only a fixed set of modes. * Enumerate them here to check whether the mode is supported. */ static struct lt9611uxc_mode lt9611uxc_modes[] = …; static struct lt9611uxc *bridge_to_lt9611uxc(struct drm_bridge *bridge) { … } static struct lt9611uxc *connector_to_lt9611uxc(struct drm_connector *connector) { … } static void lt9611uxc_lock(struct lt9611uxc *lt9611uxc) { … } static void lt9611uxc_unlock(struct lt9611uxc *lt9611uxc) { … } static irqreturn_t lt9611uxc_irq_thread_handler(int irq, void *dev_id) { … } static void lt9611uxc_hpd_work(struct work_struct *work) { … } static void lt9611uxc_reset(struct lt9611uxc *lt9611uxc) { … } static void lt9611uxc_assert_5v(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_regulator_init(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_regulator_enable(struct lt9611uxc *lt9611uxc) { … } static struct lt9611uxc_mode *lt9611uxc_find_mode(const struct drm_display_mode *mode) { … } static struct mipi_dsi_device *lt9611uxc_attach_dsi(struct lt9611uxc *lt9611uxc, struct device_node *dsi_node) { … } static int lt9611uxc_connector_get_modes(struct drm_connector *connector) { … } static enum drm_connector_status lt9611uxc_connector_detect(struct drm_connector *connector, bool force) { … } static enum drm_mode_status lt9611uxc_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { … } static const struct drm_connector_helper_funcs lt9611uxc_bridge_connector_helper_funcs = …; static const struct drm_connector_funcs lt9611uxc_bridge_connector_funcs = …; static int lt9611uxc_connector_init(struct drm_bridge *bridge, struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { … } static enum drm_mode_status lt9611uxc_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, const struct drm_display_mode *mode) { … } static void lt9611uxc_video_setup(struct lt9611uxc *lt9611uxc, const struct drm_display_mode *mode) { … } static void lt9611uxc_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adj_mode) { … } static enum drm_connector_status lt9611uxc_bridge_detect(struct drm_bridge *bridge) { … } static int lt9611uxc_wait_for_edid(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len) { struct lt9611uxc *lt9611uxc = data; int ret; if (len > EDID_BLOCK_SIZE) return -EINVAL; if (block >= EDID_NUM_BLOCKS) return -EINVAL; lt9611uxc_lock(lt9611uxc); regmap_write(lt9611uxc->regmap, 0xb00b, 0x10); regmap_write(lt9611uxc->regmap, 0xb00a, block * EDID_BLOCK_SIZE); ret = regmap_noinc_read(lt9611uxc->regmap, 0xb0b0, buf, len); if (ret) dev_err(lt9611uxc->dev, "edid read failed: %d\n", ret); lt9611uxc_unlock(lt9611uxc); return 0; }; static const struct drm_edid *lt9611uxc_bridge_edid_read(struct drm_bridge *bridge, struct drm_connector *connector) { … } static const struct drm_bridge_funcs lt9611uxc_bridge_funcs = …; static int lt9611uxc_parse_dt(struct device *dev, struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_gpio_init(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_read_device_rev(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_read_version(struct lt9611uxc *lt9611uxc) { … } static int lt9611uxc_hdmi_hw_params(struct device *dev, void *data, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *hparms) { … } static void lt9611uxc_audio_shutdown(struct device *dev, void *data) { … } static int lt9611uxc_hdmi_i2s_get_dai_id(struct snd_soc_component *component, struct device_node *endpoint) { … } static const struct hdmi_codec_ops lt9611uxc_codec_ops = …; static int lt9611uxc_audio_init(struct device *dev, struct lt9611uxc *lt9611uxc) { … } static void lt9611uxc_audio_exit(struct lt9611uxc *lt9611uxc) { … } #define LT9611UXC_FW_PAGE_SIZE … static void lt9611uxc_firmware_write_page(struct lt9611uxc *lt9611uxc, u16 addr, const u8 *buf) { … } static void lt9611uxc_firmware_read_page(struct lt9611uxc *lt9611uxc, u16 addr, char *buf) { … } static char *lt9611uxc_firmware_read(struct lt9611uxc *lt9611uxc, size_t size) { … } static int lt9611uxc_firmware_update(struct lt9611uxc *lt9611uxc) { … } static ssize_t lt9611uxc_firmware_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { … } static ssize_t lt9611uxc_firmware_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RW(lt9611uxc_firmware); static struct attribute *lt9611uxc_attrs[] = …; static const struct attribute_group lt9611uxc_attr_group = …; static const struct attribute_group *lt9611uxc_attr_groups[] = …; static int lt9611uxc_probe(struct i2c_client *client) { … } static void lt9611uxc_remove(struct i2c_client *client) { … } static struct i2c_device_id lt9611uxc_id[] = …; static const struct of_device_id lt9611uxc_match_table[] = …; MODULE_DEVICE_TABLE(of, lt9611uxc_match_table); static struct i2c_driver lt9611uxc_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_FIRMWARE(…);
Codebase Browser
linux