--- zzzz-none-000/linux-3.10.107/drivers/media/platform/exynos4-is/fimc-is-sensor.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/media/platform/exynos4-is/fimc-is-sensor.c 2021-02-04 17:41:59.000000000 +0000 @@ -2,276 +2,21 @@ * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver * * Copyright (C) 2013 Samsung Electronics Co., Ltd. - * * Author: Sylwester Nawrocki * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "fimc-is.h" #include "fimc-is-sensor.h" -#define DRIVER_NAME "FIMC-IS-SENSOR" - -static const char * const sensor_supply_names[] = { - "svdda", - "svddio", -}; - -static const struct v4l2_mbus_framefmt fimc_is_sensor_formats[] = { - { - .code = V4L2_MBUS_FMT_SGRBG10_1X10, - .colorspace = V4L2_COLORSPACE_SRGB, - .field = V4L2_FIELD_NONE, - } -}; - -static const struct v4l2_mbus_framefmt *find_sensor_format( - struct v4l2_mbus_framefmt *mf) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(fimc_is_sensor_formats); i++) - if (mf->code == fimc_is_sensor_formats[i].code) - return &fimc_is_sensor_formats[i]; - - return &fimc_is_sensor_formats[0]; -} - -static int fimc_is_sensor_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->index >= ARRAY_SIZE(fimc_is_sensor_formats)) - return -EINVAL; - - code->code = fimc_is_sensor_formats[code->index].code; - return 0; -} - -static void fimc_is_sensor_try_format(struct fimc_is_sensor *sensor, - struct v4l2_mbus_framefmt *mf) -{ - const struct sensor_drv_data *dd = sensor->drvdata; - const struct v4l2_mbus_framefmt *fmt; - - fmt = find_sensor_format(mf); - mf->code = fmt->code; - v4l_bound_align_image(&mf->width, 16 + 8, dd->width, 0, - &mf->height, 12 + 8, dd->height, 0, 0); -} - -static struct v4l2_mbus_framefmt *__fimc_is_sensor_get_format( - struct fimc_is_sensor *sensor, struct v4l2_subdev_fh *fh, - u32 pad, enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return fh ? v4l2_subdev_get_try_format(fh, pad) : NULL; - - return &sensor->format; -} - -static int fimc_is_sensor_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct fimc_is_sensor *sensor = sd_to_fimc_is_sensor(sd); - struct v4l2_mbus_framefmt *mf; - - fimc_is_sensor_try_format(sensor, &fmt->format); - - mf = __fimc_is_sensor_get_format(sensor, fh, fmt->pad, fmt->which); - if (mf) { - mutex_lock(&sensor->lock); - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) - *mf = fmt->format; - mutex_unlock(&sensor->lock); - } - return 0; -} - -static int fimc_is_sensor_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct fimc_is_sensor *sensor = sd_to_fimc_is_sensor(sd); - struct v4l2_mbus_framefmt *mf; - - mf = __fimc_is_sensor_get_format(sensor, fh, fmt->pad, fmt->which); - - mutex_lock(&sensor->lock); - fmt->format = *mf; - mutex_unlock(&sensor->lock); - return 0; -} - -static struct v4l2_subdev_pad_ops fimc_is_sensor_pad_ops = { - .enum_mbus_code = fimc_is_sensor_enum_mbus_code, - .get_fmt = fimc_is_sensor_get_fmt, - .set_fmt = fimc_is_sensor_set_fmt, -}; - -static int fimc_is_sensor_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0); - - *format = fimc_is_sensor_formats[0]; - format->width = FIMC_IS_SENSOR_DEF_PIX_WIDTH; - format->height = FIMC_IS_SENSOR_DEF_PIX_HEIGHT; - - return 0; -} - -static const struct v4l2_subdev_internal_ops fimc_is_sensor_sd_internal_ops = { - .open = fimc_is_sensor_open, -}; - -static int fimc_is_sensor_s_power(struct v4l2_subdev *sd, int on) -{ - struct fimc_is_sensor *sensor = sd_to_fimc_is_sensor(sd); - int gpio = sensor->gpio_reset; - int ret; - - if (on) { - ret = pm_runtime_get(sensor->dev); - if (ret < 0) - return ret; - - ret = regulator_bulk_enable(SENSOR_NUM_SUPPLIES, - sensor->supplies); - if (ret < 0) { - pm_runtime_put(sensor->dev); - return ret; - } - if (gpio_is_valid(gpio)) { - gpio_set_value(gpio, 1); - usleep_range(600, 800); - gpio_set_value(gpio, 0); - usleep_range(10000, 11000); - gpio_set_value(gpio, 1); - } - - /* A delay needed for the sensor initialization. */ - msleep(20); - } else { - if (gpio_is_valid(gpio)) - gpio_set_value(gpio, 0); - - ret = regulator_bulk_disable(SENSOR_NUM_SUPPLIES, - sensor->supplies); - if (!ret) - pm_runtime_put(sensor->dev); - } - - pr_info("%s:%d: on: %d, ret: %d\n", __func__, __LINE__, on, ret); - - return ret; -} - -static struct v4l2_subdev_core_ops fimc_is_sensor_core_ops = { - .s_power = fimc_is_sensor_s_power, -}; - -static struct v4l2_subdev_ops fimc_is_sensor_subdev_ops = { - .core = &fimc_is_sensor_core_ops, - .pad = &fimc_is_sensor_pad_ops, -}; - -static const struct of_device_id fimc_is_sensor_of_match[]; - -static int fimc_is_sensor_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct device *dev = &client->dev; - struct fimc_is_sensor *sensor; - const struct of_device_id *of_id; - struct v4l2_subdev *sd; - int gpio, i, ret; - - sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); - if (!sensor) - return -ENOMEM; - - mutex_init(&sensor->lock); - sensor->gpio_reset = -EINVAL; - - gpio = of_get_gpio_flags(dev->of_node, 0, NULL); - if (gpio_is_valid(gpio)) { - ret = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_LOW, - DRIVER_NAME); - if (ret < 0) - return ret; - } - sensor->gpio_reset = gpio; - - for (i = 0; i < SENSOR_NUM_SUPPLIES; i++) - sensor->supplies[i].supply = sensor_supply_names[i]; - - ret = devm_regulator_bulk_get(&client->dev, SENSOR_NUM_SUPPLIES, - sensor->supplies); - if (ret < 0) - return ret; - - of_id = of_match_node(fimc_is_sensor_of_match, dev->of_node); - if (!of_id) - return -ENODEV; - - sensor->drvdata = of_id->data; - sensor->dev = dev; - - sd = &sensor->subdev; - v4l2_i2c_subdev_init(sd, client, &fimc_is_sensor_subdev_ops); - snprintf(sd->name, sizeof(sd->name), sensor->drvdata->subdev_name); - sensor->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - sensor->format.code = fimc_is_sensor_formats[0].code; - sensor->format.width = FIMC_IS_SENSOR_DEF_PIX_WIDTH; - sensor->format.height = FIMC_IS_SENSOR_DEF_PIX_HEIGHT; - - sensor->pad.flags = MEDIA_PAD_FL_SOURCE; - ret = media_entity_init(&sd->entity, 1, &sensor->pad, 0); - if (ret < 0) - return ret; - - pm_runtime_no_callbacks(dev); - pm_runtime_enable(dev); - - return ret; -} - -static int fimc_is_sensor_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - media_entity_cleanup(&sd->entity); - return 0; -} - -static const struct i2c_device_id fimc_is_sensor_ids[] = { - { } -}; - static const struct sensor_drv_data s5k6a3_drvdata = { .id = FIMC_IS_SENSOR_ID_S5K6A3, - .subdev_name = "S5K6A3", - .width = S5K6A3_SENSOR_WIDTH, - .height = S5K6A3_SENSOR_HEIGHT, + .open_timeout = S5K6A3_OPEN_TIMEOUT, }; -static const struct of_device_id fimc_is_sensor_of_match[] = { +static const struct of_device_id fimc_is_sensor_of_ids[] = { { .compatible = "samsung,s5k6a3", .data = &s5k6a3_drvdata, @@ -279,27 +24,11 @@ { } }; -static struct i2c_driver fimc_is_sensor_driver = { - .driver = { - .of_match_table = fimc_is_sensor_of_match, - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .probe = fimc_is_sensor_probe, - .remove = fimc_is_sensor_remove, - .id_table = fimc_is_sensor_ids, -}; - -int fimc_is_register_sensor_driver(void) +const struct sensor_drv_data *fimc_is_sensor_get_drvdata( + struct device_node *node) { - return i2c_add_driver(&fimc_is_sensor_driver); -} + const struct of_device_id *of_id; -void fimc_is_unregister_sensor_driver(void) -{ - i2c_del_driver(&fimc_is_sensor_driver); + of_id = of_match_node(fimc_is_sensor_of_ids, node); + return of_id ? of_id->data : NULL; } - -MODULE_AUTHOR("Sylwester Nawrocki "); -MODULE_DESCRIPTION("Exynos4x12 FIMC-IS image sensor subdev driver"); -MODULE_LICENSE("GPL");