1 files changed, 177 insertions, 86 deletions

diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c
index 94dc8cb7a7c0..ea26df328189 100644
--- a/drivers/media/i2c/ov5675.c
+++ b/drivers/media/i2c/ov5675.c
@@ -1,12 +1,17 @@
 // SPDX-License-Identifier: GPL-2.0
 // Copyright (c) 2019 Intel Corporation.
 
-#include <asm/unaligned.h>
 #include <linux/acpi.h>
+#include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/unaligned.h>
+
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-fwnode.h>
@@ -17,7 +22,7 @@
 
 #define OV5675_LINK_FREQ_450MHZ		450000000ULL
 #define OV5675_SCLK			90000000LL
-#define OV5675_MCLK			19200000
+#define OV5675_XVCLK_19_2		19200000
 #define OV5675_DATA_LANES		2
 #define OV5675_RGB_DEPTH		10
 
@@ -76,6 +81,14 @@
 
 #define to_ov5675(_sd)			container_of(_sd, struct ov5675, sd)
 
+static const char * const ov5675_supply_names[] = {
+	"avdd",		/* Analog power */
+	"dovdd",	/* Digital I/O power */
+	"dvdd",		/* Digital core power */
+};
+
+#define OV5675_NUM_SUPPLIES	ARRAY_SIZE(ov5675_supply_names)
+
 enum {
 	OV5675_LINK_FREQ_900MBPS,
 };
@@ -481,9 +494,14 @@ static const struct ov5675_mode supported_modes[] = {
 };
 
 struct ov5675 {
+	struct device *dev;
+
 	struct v4l2_subdev sd;
 	struct media_pad pad;
 	struct v4l2_ctrl_handler ctrl_handler;
+	struct clk *xvclk;
+	struct gpio_desc *reset_gpio;
+	struct regulator_bulk_data supplies[OV5675_NUM_SUPPLIES];
 
 	/* V4L2 Controls */
 	struct v4l2_ctrl *link_freq;
@@ -495,12 +513,9 @@ struct ov5675 {
 	/* Current mode */
 	const struct ov5675_mode *cur_mode;
 
-	/* To serialize asynchronus callbacks */
+	/* To serialize asynchronous callbacks */
 	struct mutex mutex;
 
-	/* Streaming on/off */
-	bool streaming;
-
 	/* True if the device has been identified */
 	bool identified;
 };
@@ -572,7 +587,6 @@ static int ov5675_write_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 val)
 static int ov5675_write_reg_list(struct ov5675 *ov5675,
 				 const struct ov5675_reg_list *r_list)
 {
-	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 	unsigned int i;
 	int ret;
 
@@ -580,7 +594,7 @@ static int ov5675_write_reg_list(struct ov5675 *ov5675,
 		ret = ov5675_write_reg(ov5675, r_list->regs[i].address, 1,
 				       r_list->regs[i].val);
 		if (ret) {
-			dev_err_ratelimited(&client->dev,
+			dev_err_ratelimited(ov5675->dev,
 				    "failed to write reg 0x%4.4x. error = %d",
 				    r_list->regs[i].address, ret);
 			return ret;
@@ -688,7 +702,6 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct ov5675 *ov5675 = container_of(ctrl->handler,
 					     struct ov5675, ctrl_handler);
-	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 	s64 exposure_max;
 	int ret = 0;
 
@@ -704,7 +717,7 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl)
 	}
 
 	/* V4L2 controls values will be applied only when power is already up */
-	if (!pm_runtime_get_if_in_use(&client->dev))
+	if (!pm_runtime_get_if_in_use(ov5675->dev))
 		return 0;
 
 	switch (ctrl->id) {
@@ -720,7 +733,7 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_EXPOSURE:
 		/* 4 least significant bits of expsoure are fractional part
 		 * val = val << 4
-		 * for ov5675, the unit of exposure is differnt from other
+		 * for ov5675, the unit of exposure is different from other
 		 * OmniVision sensors, its exposure value is twice of the
 		 * register value, the exposure should be divided by 2 before
 		 * set register, e.g. val << 3.
@@ -753,7 +766,7 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl)
 		break;
 	}
 
-	pm_runtime_put(&client->dev);
+	pm_runtime_put(ov5675->dev);
 
 	return ret;
 }
@@ -764,12 +777,13 @@ static const struct v4l2_ctrl_ops ov5675_ctrl_ops = {
 
 static int ov5675_init_controls(struct ov5675 *ov5675)
 {
+	struct v4l2_fwnode_device_properties props;
 	struct v4l2_ctrl_handler *ctrl_hdlr;
 	s64 exposure_max, h_blank;
 	int ret;
 
 	ctrl_hdlr = &ov5675->ctrl_handler;
-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
 	if (ret)
 		return ret;
 
@@ -820,12 +834,28 @@ static int ov5675_init_controls(struct ov5675 *ov5675)
 	v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 			  V4L2_CID_VFLIP, 0, 1, 1, 0);
 
-	if (ctrl_hdlr->error)
+	if (ctrl_hdlr->error) {
+		v4l2_ctrl_handler_free(ctrl_hdlr);
 		return ctrl_hdlr->error;
+	}
+
+	ret = v4l2_fwnode_device_parse(ov5675->dev, &props);
+	if (ret)
+		goto error;
+
+	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov5675_ctrl_ops,
+					      &props);
+	if (ret)
+		goto error;
 
 	ov5675->sd.ctrl_handler = ctrl_hdlr;
 
 	return 0;
+
+error:
+	v4l2_ctrl_handler_free(ctrl_hdlr);
+
+	return ret;
 }
 
 static void ov5675_update_pad_format(const struct ov5675_mode *mode,
@@ -839,7 +869,6 @@ static void ov5675_update_pad_format(const struct ov5675_mode *mode,
 
 static int ov5675_identify_module(struct ov5675 *ov5675)
 {
-	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 	int ret;
 	u32 val;
 
@@ -852,7 +881,7 @@ static int ov5675_identify_module(struct ov5675 *ov5675)
 		return ret;
 
 	if (val != OV5675_CHIP_ID) {
-		dev_err(&client->dev, "chip id mismatch: %x!=%x",
+		dev_err(ov5675->dev, "chip id mismatch: %x!=%x",
 			OV5675_CHIP_ID, val);
 		return -ENXIO;
 	}
@@ -864,7 +893,6 @@ static int ov5675_identify_module(struct ov5675 *ov5675)
 
 static int ov5675_start_streaming(struct ov5675 *ov5675)
 {
-	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 	const struct ov5675_reg_list *reg_list;
 	int link_freq_index, ret;
 
@@ -876,14 +904,14 @@ static int ov5675_start_streaming(struct ov5675 *ov5675)
 	reg_list = &link_freq_configs[link_freq_index].reg_list;
 	ret = ov5675_write_reg_list(ov5675, reg_list);
 	if (ret) {
-		dev_err(&client->dev, "failed to set plls");
+		dev_err(ov5675->dev, "failed to set plls");
 		return ret;
 	}
 
 	reg_list = &ov5675->cur_mode->reg_list;
 	ret = ov5675_write_reg_list(ov5675, reg_list);
 	if (ret) {
-		dev_err(&client->dev, "failed to set mode");
+		dev_err(ov5675->dev, "failed to set mode");
 		return ret;
 	}
 
@@ -894,7 +922,7 @@ static int ov5675_start_streaming(struct ov5675 *ov5675)
 	ret = ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT,
 			       OV5675_REG_VALUE_08BIT, OV5675_MODE_STREAMING);
 	if (ret) {
-		dev_err(&client->dev, "failed to set stream");
+		dev_err(ov5675->dev, "failed to set stream");
 		return ret;
 	}
 
@@ -903,25 +931,19 @@ static int ov5675_start_streaming(struct ov5675 *ov5675)
 
 static void ov5675_stop_streaming(struct ov5675 *ov5675)
 {
-	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
-
 	if (ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT,
 			     OV5675_REG_VALUE_08BIT, OV5675_MODE_STANDBY))
-		dev_err(&client->dev, "failed to set stream");
+		dev_err(ov5675->dev, "failed to set stream");
 }
 
 static int ov5675_set_stream(struct v4l2_subdev *sd, int enable)
 {
 	struct ov5675 *ov5675 = to_ov5675(sd);
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	int ret = 0;
 
-	if (ov5675->streaming == enable)
-		return 0;
-
 	mutex_lock(&ov5675->mutex);
 	if (enable) {
-		ret = pm_runtime_resume_and_get(&client->dev);
+		ret = pm_runtime_resume_and_get(ov5675->dev);
 		if (ret < 0) {
 			mutex_unlock(&ov5675->mutex);
 			return ret;
@@ -931,51 +953,64 @@ static int ov5675_set_stream(struct v4l2_subdev *sd, int enable)
 		if (ret) {
 			enable = 0;
 			ov5675_stop_streaming(ov5675);
-			pm_runtime_put(&client->dev);
+			pm_runtime_put(ov5675->dev);
 		}
 	} else {
 		ov5675_stop_streaming(ov5675);
-		pm_runtime_put(&client->dev);
+		pm_runtime_put(ov5675->dev);
 	}
 
-	ov5675->streaming = enable;
 	mutex_unlock(&ov5675->mutex);
 
 	return ret;
 }
 
-static int __maybe_unused ov5675_suspend(struct device *dev)
+static int ov5675_power_off(struct device *dev)
 {
 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
 	struct ov5675 *ov5675 = to_ov5675(sd);
 
-	mutex_lock(&ov5675->mutex);
-	if (ov5675->streaming)
-		ov5675_stop_streaming(ov5675);
+	usleep_range(90, 100);
 
-	mutex_unlock(&ov5675->mutex);
+	clk_disable_unprepare(ov5675->xvclk);
+	gpiod_set_value_cansleep(ov5675->reset_gpio, 1);
+	regulator_bulk_disable(OV5675_NUM_SUPPLIES, ov5675->supplies);
 
 	return 0;
 }
 
-static int __maybe_unused ov5675_resume(struct device *dev)
+static int ov5675_power_on(struct device *dev)
 {
 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
 	struct ov5675 *ov5675 = to_ov5675(sd);
 	int ret;
 
-	mutex_lock(&ov5675->mutex);
-	if (ov5675->streaming) {
-		ret = ov5675_start_streaming(ov5675);
-		if (ret) {
-			ov5675->streaming = false;
-			ov5675_stop_streaming(ov5675);
-			mutex_unlock(&ov5675->mutex);
-			return ret;
-		}
+	ret = clk_prepare_enable(ov5675->xvclk);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable xvclk: %d\n", ret);
+		return ret;
 	}
 
-	mutex_unlock(&ov5675->mutex);
+	gpiod_set_value_cansleep(ov5675->reset_gpio, 1);
+
+	ret = regulator_bulk_enable(OV5675_NUM_SUPPLIES, ov5675->supplies);
+	if (ret) {
+		clk_disable_unprepare(ov5675->xvclk);
+		return ret;
+	}
+
+	/* Reset pulse should be at least 2ms and reset gpio released only once
+	 * regulators are stable.
+	 */
+	usleep_range(2000, 2200);
+
+	gpiod_set_value_cansleep(ov5675->reset_gpio, 0);
+
+	/* Worst case quiesence gap is 1.365 milliseconds @ 6MHz XVCLK
+	 * Add an additional threshold grace period to ensure reset
+	 * completion before initiating our first I2C transaction.
+	 */
+	usleep_range(1500, 1600);
 
 	return 0;
 }
@@ -996,7 +1031,7 @@ static int ov5675_set_format(struct v4l2_subdev *sd,
 	mutex_lock(&ov5675->mutex);
 	ov5675_update_pad_format(mode, &fmt->format);
 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
-		*v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
+		*v4l2_subdev_state_get_format(sd_state, fmt->pad) = fmt->format;
 	} else {
 		ov5675->cur_mode = mode;
 		__v4l2_ctrl_s_ctrl(ov5675->link_freq, mode->link_freq_index);
@@ -1029,9 +1064,8 @@ static int ov5675_get_format(struct v4l2_subdev *sd,
 
 	mutex_lock(&ov5675->mutex);
 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
-		fmt->format = *v4l2_subdev_get_try_format(&ov5675->sd,
-							  sd_state,
-							  fmt->pad);
+		fmt->format = *v4l2_subdev_state_get_format(sd_state,
+							    fmt->pad);
 	else
 		ov5675_update_pad_format(ov5675->cur_mode, &fmt->format);
 
@@ -1040,6 +1074,31 @@ static int ov5675_get_format(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static int ov5675_get_selection(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *state,
+				struct v4l2_subdev_selection *sel)
+{
+	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+		return -EINVAL;
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sel->r.top = 0;
+		sel->r.left = 0;
+		sel->r.width = 2624;
+		sel->r.height = 2000;
+		return 0;
+	case V4L2_SEL_TGT_CROP:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		sel->r.top = 16;
+		sel->r.left = 16;
+		sel->r.width = 2592;
+		sel->r.height = 1944;
+		return 0;
+	}
+	return -EINVAL;
+}
+
 static int ov5675_enum_mbus_code(struct v4l2_subdev *sd,
 				 struct v4l2_subdev_state *sd_state,
 				 struct v4l2_subdev_mbus_code_enum *code)
@@ -1076,7 +1135,7 @@ static int ov5675_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 
 	mutex_lock(&ov5675->mutex);
 	ov5675_update_pad_format(&supported_modes[0],
-				 v4l2_subdev_get_try_format(sd, fh->state, 0));
+				 v4l2_subdev_state_get_format(fh->state, 0));
 	mutex_unlock(&ov5675->mutex);
 
 	return 0;
@@ -1089,6 +1148,7 @@ static const struct v4l2_subdev_video_ops ov5675_video_ops = {
 static const struct v4l2_subdev_pad_ops ov5675_pad_ops = {
 	.set_fmt = ov5675_set_format,
 	.get_fmt = ov5675_get_format,
+	.get_selection = ov5675_get_selection,
 	.enum_mbus_code = ov5675_enum_mbus_code,
 	.enum_frame_size = ov5675_enum_frame_size,
 };
@@ -1106,32 +1166,50 @@ static const struct v4l2_subdev_internal_ops ov5675_internal_ops = {
 	.open = ov5675_open,
 };
 
-static int ov5675_check_hwcfg(struct device *dev)
+static int ov5675_get_hwcfg(struct ov5675 *ov5675)
 {
+	struct device *dev = ov5675->dev;
 	struct fwnode_handle *ep;
 	struct fwnode_handle *fwnode = dev_fwnode(dev);
 	struct v4l2_fwnode_endpoint bus_cfg = {
 		.bus_type = V4L2_MBUS_CSI2_DPHY
 	};
-	u32 mclk;
+	u32 xvclk_rate;
 	int ret;
 	unsigned int i, j;
 
 	if (!fwnode)
 		return -ENXIO;
 
-	ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk);
+	ov5675->xvclk = devm_v4l2_sensor_clk_get(dev, NULL);
+	if (IS_ERR(ov5675->xvclk))
+		return dev_err_probe(dev, PTR_ERR(ov5675->xvclk),
+				     "failed to get xvclk: %pe\n",
+				     ov5675->xvclk);
 
-	if (ret) {
-		dev_err(dev, "can't get clock frequency");
-		return ret;
+	xvclk_rate = clk_get_rate(ov5675->xvclk);
+	if (xvclk_rate != OV5675_XVCLK_19_2) {
+		dev_err(dev, "external clock rate %u is unsupported",
+			xvclk_rate);
+		return -EINVAL;
 	}
 
-	if (mclk != OV5675_MCLK) {
-		dev_err(dev, "external clock %d is not supported", mclk);
-		return -EINVAL;
+	ov5675->reset_gpio = devm_gpiod_get_optional(dev, "reset",
+						     GPIOD_OUT_HIGH);
+	if (IS_ERR(ov5675->reset_gpio)) {
+		ret = PTR_ERR(ov5675->reset_gpio);
+		dev_err(dev, "failed to get reset-gpios: %d\n", ret);
+		return ret;
 	}
 
+	for (i = 0; i < OV5675_NUM_SUPPLIES; i++)
+		ov5675->supplies[i].supply = ov5675_supply_names[i];
+
+	ret = devm_regulator_bulk_get(dev, OV5675_NUM_SUPPLIES,
+				      ov5675->supplies);
+	if (ret)
+		return ret;
+
 	ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
 	if (!ep)
 		return -ENXIO;
@@ -1183,8 +1261,12 @@ static void ov5675_remove(struct i2c_client *client)
 	v4l2_async_unregister_subdev(sd);
 	media_entity_cleanup(&sd->entity);
 	v4l2_ctrl_handler_free(sd->ctrl_handler);
-	pm_runtime_disable(&client->dev);
+	pm_runtime_disable(ov5675->dev);
 	mutex_destroy(&ov5675->mutex);
+
+	if (!pm_runtime_status_suspended(ov5675->dev))
+		ov5675_power_off(ov5675->dev);
+	pm_runtime_set_suspended(ov5675->dev);
 }
 
 static int ov5675_probe(struct i2c_client *client)
@@ -1193,25 +1275,30 @@ static int ov5675_probe(struct i2c_client *client)
 	bool full_power;
 	int ret;
 
-	ret = ov5675_check_hwcfg(&client->dev);
-	if (ret) {
-		dev_err(&client->dev, "failed to check HW configuration: %d",
-			ret);
-		return ret;
-	}
-
 	ov5675 = devm_kzalloc(&client->dev, sizeof(*ov5675), GFP_KERNEL);
 	if (!ov5675)
 		return -ENOMEM;
 
+	ov5675->dev = &client->dev;
+
+	ret = ov5675_get_hwcfg(ov5675);
+	if (ret)
+		return ret;
+
 	v4l2_i2c_subdev_init(&ov5675->sd, client, &ov5675_subdev_ops);
 
-	full_power = acpi_dev_state_d0(&client->dev);
+	ret = ov5675_power_on(ov5675->dev);
+	if (ret) {
+		dev_err(ov5675->dev, "failed to power on: %d\n", ret);
+		return ret;
+	}
+
+	full_power = acpi_dev_state_d0(ov5675->dev);
 	if (full_power) {
 		ret = ov5675_identify_module(ov5675);
 		if (ret) {
-			dev_err(&client->dev, "failed to find sensor: %d", ret);
-			return ret;
+			dev_err(ov5675->dev, "failed to find sensor: %d", ret);
+			goto probe_power_off;
 		}
 	}
 
@@ -1219,7 +1306,7 @@ static int ov5675_probe(struct i2c_client *client)
 	ov5675->cur_mode = &supported_modes[0];
 	ret = ov5675_init_controls(ov5675);
 	if (ret) {
-		dev_err(&client->dev, "failed to init controls: %d", ret);
+		dev_err(ov5675->dev, "failed to init controls: %d", ret);
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
@@ -1230,27 +1317,22 @@ static int ov5675_probe(struct i2c_client *client)
 	ov5675->pad.flags = MEDIA_PAD_FL_SOURCE;
 	ret = media_entity_pads_init(&ov5675->sd.entity, 1, &ov5675->pad);
 	if (ret) {
-		dev_err(&client->dev, "failed to init entity pads: %d", ret);
+		dev_err(ov5675->dev, "failed to init entity pads: %d", ret);
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
 	ret = v4l2_async_register_subdev_sensor(&ov5675->sd);
 	if (ret < 0) {
-		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+		dev_err(ov5675->dev, "failed to register V4L2 subdev: %d",
 			ret);
 		goto probe_error_media_entity_cleanup;
 	}
 
-	/*
-	 * Device is already turned on by i2c-core with ACPI domain PM.
-	 * Enable runtime PM and turn off the device.
-	 */
-
 	/* Set the device's state to active if it's in D0 state. */
 	if (full_power)
-		pm_runtime_set_active(&client->dev);
-	pm_runtime_enable(&client->dev);
-	pm_runtime_idle(&client->dev);
+		pm_runtime_set_active(ov5675->dev);
+	pm_runtime_enable(ov5675->dev);
+	pm_runtime_idle(ov5675->dev);
 
 	return 0;
 
@@ -1260,12 +1342,14 @@ probe_error_media_entity_cleanup:
 probe_error_v4l2_ctrl_handler_free:
 	v4l2_ctrl_handler_free(ov5675->sd.ctrl_handler);
 	mutex_destroy(&ov5675->mutex);
+probe_power_off:
+	ov5675_power_off(ov5675->dev);
 
 	return ret;
 }
 
 static const struct dev_pm_ops ov5675_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(ov5675_suspend, ov5675_resume)
+	SET_RUNTIME_PM_OPS(ov5675_power_off, ov5675_power_on, NULL)
 };
 
 #ifdef CONFIG_ACPI
@@ -1277,19 +1361,26 @@ static const struct acpi_device_id ov5675_acpi_ids[] = {
 MODULE_DEVICE_TABLE(acpi, ov5675_acpi_ids);
 #endif
 
+static const struct of_device_id ov5675_of_match[] = {
+	{ .compatible = "ovti,ov5675", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ov5675_of_match);
+
 static struct i2c_driver ov5675_i2c_driver = {
 	.driver = {
 		.name = "ov5675",
 		.pm = &ov5675_pm_ops,
 		.acpi_match_table = ACPI_PTR(ov5675_acpi_ids),
+		.of_match_table = ov5675_of_match,
 	},
-	.probe_new = ov5675_probe,
+	.probe = ov5675_probe,
 	.remove = ov5675_remove,
 	.flags = I2C_DRV_ACPI_WAIVE_D0_PROBE,
 };
 
 module_i2c_driver(ov5675_i2c_driver);
 
-MODULE_AUTHOR("Shawn Tu <shawnx.tu@intel.com>");
+MODULE_AUTHOR("Shawn Tu");
 MODULE_DESCRIPTION("OmniVision OV5675 sensor driver");
 MODULE_LICENSE("GPL v2");