Device drivers of v4l2_subdev devices may want to have
i2c board info data. This patch adds an helper function
to allow bridge drivers to pass board specific data to
v4l2_subdev drivers.
Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxxxxx>
---
drivers/media/video/v4l2-common.c | 33 +++++++++++++++++++++++++++------
include/media/v4l2-common.h | 6 ++++++
2 files changed, 33 insertions(+), 6 deletions(-)
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 389f7b2..ac30c46 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -864,9 +864,9 @@ static struct i2c_client *v4l2_i2c_legacy_find_client(struct i2c_adapter *adap,
/* Load an i2c sub-device. */
-struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
- struct i2c_adapter *adapter,
- const char *module_name, const char *client_type, u8 addr)
+static struct v4l2_subdev *__v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter, const char *module_name,
+ const char *client_type, u8 addr, struct i2c_board_info *i)
{
struct v4l2_subdev *sd = NULL;
struct i2c_client *client;
@@ -882,9 +882,13 @@ struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
/* Setup the i2c board info with the device type and
the device address. */
- memset(&info, 0, sizeof(info));
- strlcpy(info.type, client_type, sizeof(info.type));
- info.addr = addr;
+ if (!i) {
+ memset(&info, 0, sizeof(info));
+ strlcpy(info.type, client_type, sizeof(info.type));
+ info.addr = addr;
+ } else {
+ memcpy(&info, i, sizeof(info));
+ }
/* Create the i2c client */
client = i2c_new_device(adapter, &info);
@@ -922,8 +926,25 @@ error:
#endif
return sd;
}
+
+struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type, u8 addr)
+{
+ return __v4l2_i2c_new_subdev(v4l2_dev, adapter, module_name,
+ client_type, addr, NULL);
+}
EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev);
+struct v4l2_subdev *v4l2_i2c_new_subdev_board_info(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter, const char *module_name,
+ struct i2c_board_info *i)
+{
+ return __v4l2_i2c_new_subdev(v4l2_dev, adapter, module_name,
+ NULL, 0, i);
+}
+EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_board_info);
+
/* Probe and load an i2c sub-device. */
struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct v4l2_device *v4l2_dev,
struct i2c_adapter *adapter,
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 2e1e3a2..da9c95d 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -130,6 +130,7 @@ int v4l2_chip_match_host(const struct v4l2_dbg_match *match);
struct i2c_driver;
struct i2c_adapter;
struct i2c_client;
+struct i2c_board_info;
struct i2c_device_id;
struct v4l2_device;
struct v4l2_subdev;
@@ -147,6 +148,11 @@ int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver
struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
struct i2c_adapter *adapter,
const char *module_name, const char *client_type, u8 addr);
+/* Same as v4l2_i2c_new_subdev, but with oportunity to pass i2c_board_info
+ to client device */
+struct v4l2_subdev *v4l2_i2c_new_subdev_board_info(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter, const char *module_name,
+ struct i2c_board_info *i);
/* Probe and load an i2c module and return an initialized v4l2_subdev struct.
Only call request_module if module_name != NULL.
The client_type argument is the name of the chip that's on the adapter. */
--
1.6.2.GIT
--
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