// SPDX-License-Identifier: GPL-2.0 /* * Driver for the Texas Instruments DS90UB913 video serializer * * Based on a driver from Luca Ceresoli <[email protected]> * * Copyright (c) 2019 Luca Ceresoli <[email protected]> * Copyright (c) 2023 Tomi Valkeinen <[email protected]> */ #include <linux/clk-provider.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/fwnode.h> #include <linux/gpio/driver.h> #include <linux/i2c-atr.h> #include <linux/i2c.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/property.h> #include <linux/regmap.h> #include <media/i2c/ds90ub9xx.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-mediabus.h> #include <media/v4l2-subdev.h> #define UB913_PAD_SINK … #define UB913_PAD_SOURCE … /* * UB913 has 4 gpios, but gpios 3 and 4 are reserved for external oscillator * mode. Thus we only support 2 gpios for now. */ #define UB913_NUM_GPIOS … #define UB913_REG_RESET_CTL … #define UB913_REG_RESET_CTL_DIGITAL_RESET_1 … #define UB913_REG_RESET_CTL_DIGITAL_RESET_0 … #define UB913_REG_GENERAL_CFG … #define UB913_REG_GENERAL_CFG_CRC_ERR_RESET … #define UB913_REG_GENERAL_CFG_PCLK_RISING … #define UB913_REG_MODE_SEL … #define UB913_REG_MODE_SEL_MODE_OVERRIDE … #define UB913_REG_MODE_SEL_MODE_UP_TO_DATE … #define UB913_REG_MODE_SEL_MODE_MASK … #define UB913_REG_CRC_ERRORS_LSB … #define UB913_REG_CRC_ERRORS_MSB … #define UB913_REG_GENERAL_STATUS … #define UB913_REG_GPIO_CFG(n) … #define UB913_REG_GPIO_CFG_ENABLE(n) … #define UB913_REG_GPIO_CFG_DIR_INPUT(n) … #define UB913_REG_GPIO_CFG_REMOTE_EN(n) … #define UB913_REG_GPIO_CFG_OUT_VAL(n) … #define UB913_REG_GPIO_CFG_MASK(n) … #define UB913_REG_SCL_HIGH_TIME … #define UB913_REG_SCL_LOW_TIME … #define UB913_REG_PLL_OVR … struct ub913_data { … }; static inline struct ub913_data *sd_to_ub913(struct v4l2_subdev *sd) { … } struct ub913_format_info { … }; static const struct ub913_format_info ub913_formats[] = …; static const struct ub913_format_info *ub913_find_format(u32 incode) { … } static int ub913_read(const struct ub913_data *priv, u8 reg, u8 *val) { … } static int ub913_write(const struct ub913_data *priv, u8 reg, u8 val) { … } /* * GPIO chip */ static int ub913_gpio_get_direction(struct gpio_chip *gc, unsigned int offset) { … } static int ub913_gpio_direction_out(struct gpio_chip *gc, unsigned int offset, int value) { … } static void ub913_gpio_set(struct gpio_chip *gc, unsigned int offset, int value) { … } static int ub913_gpio_of_xlate(struct gpio_chip *gc, const struct of_phandle_args *gpiospec, u32 *flags) { … } static int ub913_gpiochip_probe(struct ub913_data *priv) { … } static void ub913_gpiochip_remove(struct ub913_data *priv) { … } static const struct regmap_config ub913_regmap_config = …; /* * V4L2 */ static int ub913_enable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 pad, u64 streams_mask) { … } static int ub913_disable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 pad, u64 streams_mask) { … } static int _ub913_set_routing(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_krouting *routing) { … } static int ub913_set_routing(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, enum v4l2_subdev_format_whence which, struct v4l2_subdev_krouting *routing) { … } static int ub913_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_frame_desc *fd) { … } static int ub913_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_format *format) { … } static int ub913_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state) { … } static int ub913_log_status(struct v4l2_subdev *sd) { … } static const struct v4l2_subdev_core_ops ub913_subdev_core_ops = …; static const struct v4l2_subdev_pad_ops ub913_pad_ops = …; static const struct v4l2_subdev_ops ub913_subdev_ops = …; static const struct v4l2_subdev_internal_ops ub913_internal_ops = …; static const struct media_entity_operations ub913_entity_ops = …; static int ub913_notify_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *source_subdev, struct v4l2_async_connection *asd) { … } static const struct v4l2_async_notifier_operations ub913_notify_ops = …; static int ub913_v4l2_notifier_register(struct ub913_data *priv) { … } static void ub913_v4l2_nf_unregister(struct ub913_data *priv) { … } static int ub913_register_clkout(struct ub913_data *priv) { … } static int ub913_i2c_master_init(struct ub913_data *priv) { … } static int ub913_add_i2c_adapter(struct ub913_data *priv) { … } static int ub913_parse_dt(struct ub913_data *priv) { … } static int ub913_hw_init(struct ub913_data *priv) { … } static int ub913_subdev_init(struct ub913_data *priv) { … } static void ub913_subdev_uninit(struct ub913_data *priv) { … } static int ub913_probe(struct i2c_client *client) { … } static void ub913_remove(struct i2c_client *client) { … } static const struct i2c_device_id ub913_id[] = …; MODULE_DEVICE_TABLE(i2c, ub913_id); static const struct of_device_id ub913_dt_ids[] = …; MODULE_DEVICE_TABLE(of, ub913_dt_ids); static struct i2c_driver ds90ub913_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_IMPORT_NS(…);
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