Hi PC,
Thanks for the patch.
Cc in Grant, and Intel Jim/Jason
> -----Original Message-----
> From: Chen, Ping-chung
> Sent: Tuesday, July 10, 2018 3:16 PM
> To: linux-media@xxxxxxxxxxxxxxx
> Cc: sakari.ailus@xxxxxxxxxxxxxxx; Yeh, Andy <andy.yeh@xxxxxxxxx>;
> tfiga@xxxxxxxxxxxx; Chen, Ping-chung <ping-chung.chen@xxxxxxxxx>
> Subject: [PATCH] media: imx208: Add imx208 camera sensor driver
> +};
> +
> +static int imx208_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_mbus_code_enum *code) {
> + /* Only one bayer order(GRBG) is supported */
> + if (code->index > 0)
> + return -EINVAL;
> +
There is no limitation on using GRBG bayer order now. You can refer to imx355 driver as well.
+static int imx355_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct imx355 *imx355 = to_imx355(sd);
> + code->code = MEDIA_BUS_FMT_SRGGB10_1X10;
> +
> + return 0;
> +}
> +
> +static int imx208_enum_frame_size(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_frame_size_enum *fse) {
> + if (fse->index >= ARRAY_SIZE(supported_modes))
> + return -EINVAL;
> +
> + if (fse->code != MEDIA_BUS_FMT_SRGGB10_1X10)
> + return -EINVAL;
> +
> + fse->min_width = supported_modes[fse->index].width;
> + fse->max_width = fse->min_width;
> + fse->min_height = supported_modes[fse->index].height;
> + fse->max_height = fse->min_height;
> +
> + return 0;
> +}
> +
> +static void imx208_update_pad_format(const struct imx208_mode *mode,
> + struct v4l2_subdev_format *fmt) {
> + fmt->format.width = mode->width;
> + fmt->format.height = mode->height;
> + fmt->format.code = MEDIA_BUS_FMT_SRGGB10_1X10;
> + fmt->format.field = V4L2_FIELD_NONE;
> +}
> +
> +
> +static int imx208_probe(struct i2c_client *client) {
> + struct imx208 *imx208;
> + int ret;
> + u32 val = 0;
> +
> + device_property_read_u32(&client->dev, "clock-frequency", &val);
> + if (val != 19200000)
> + return -EINVAL;
> +
> + imx208 = devm_kzalloc(&client->dev, sizeof(*imx208), GFP_KERNEL);
> + if (!imx208)
> + return -ENOMEM;
> +
> + /* Initialize subdev */
> + v4l2_i2c_subdev_init(&imx208->sd, client, &imx208_subdev_ops);
> +
> + /* Check module identity */
> + ret = imx208_identify_module(imx208);
> + if (ret)
> + return ret;
> +
> + /* Set default mode to max resolution */
> + imx208->cur_mode = &supported_modes[0];
> +
> + ret = imx208_init_controls(imx208);
> + if (ret)
> + return ret;
> +
> + /* Initialize subdev */
> + imx208->sd.internal_ops = &imx208_internal_ops;
> + imx208->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> + imx208->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
> +
> + /* Initialize source pad */
> + imx208->pad.flags = MEDIA_PAD_FL_SOURCE;
Please refer to IMX355 to change below code to new API on upstreamed kernel.
https://patchwork.linuxtv.org/patch/50028/
+ /* Initialize subdev */
+ imx355->sd.internal_ops = &imx355_internal_ops;
+ imx355->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+ V4L2_SUBDEV_FL_HAS_EVENTS;
+ imx355->sd.entity.ops = &imx355_subdev_entity_ops;
+ imx355->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ ret = media_entity_pads_init(&imx355->sd.entity, 1, &imx355->pad);
> + ret = media_entity_init(&imx208->sd.entity, 1, &imx208->pad, 0);
> + if (ret) {
> + dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
> + goto error_handler_free;
> + }
> +
> + ret = v4l2_async_register_subdev_sensor_common(&imx208->sd);
> + if (ret < 0)
> + goto error_media_entity;
> +
> + pm_runtime_set_active(&client->dev);
> + pm_runtime_enable(&client->dev);
> + pm_runtime_idle(&client->dev);
> +
> + return 0;
> +
> +error_media_entity:
> + media_entity_cleanup(&imx208->sd.entity);
> +
> +error_handler_free:
> + imx208_free_controls(imx208);
> +
> + return ret;
> +}
> +
> +static int imx208_remove(struct i2c_client *client) {
> + struct v4l2_subdev *sd = i2c_get_clientdata(client);
> + struct imx208 *imx208 = to_imx208(sd);
> +
> + v4l2_async_unregister_subdev(sd);
> + media_entity_cleanup(&sd->entity);
> + imx208_free_controls(imx208);
> +
> + pm_runtime_disable(&client->dev);
> + pm_runtime_set_suspended(&client->dev);
> +
> + return 0;
> +}
> +
> +static const struct dev_pm_ops imx208_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(imx208_suspend, imx208_resume) };
> +
> +#ifdef CONFIG_ACPI
> +static const struct acpi_device_id imx208_acpi_ids[] = {
> + { "INT3478" },
> + { /* sentinel */ }
> +};
> +
> +MODULE_DEVICE_TABLE(acpi, imx208_acpi_ids); #endif
> +
> +static struct i2c_driver imx208_i2c_driver = {
> + .driver = {
> + .name = "imx208",
> + .pm = &imx208_pm_ops,
> + .acpi_match_table = ACPI_PTR(imx208_acpi_ids),
> + },
> + .probe_new = imx208_probe,
> + .remove = imx208_remove,
> +};
> +
> +module_i2c_driver(imx208_i2c_driver);
> +
> +MODULE_AUTHOR("Yeh, Andy <andy.yeh@xxxxxxxxx>");
> MODULE_AUTHOR("Chen,
> +Ping-chung <ping-chung.chen@xxxxxxxxx>"); MODULE_DESCRIPTION("Sony
> +IMX208 sensor driver"); MODULE_LICENSE("GPL v2");
> --
> 1.9.1
