redonkable/alistair23-linux
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[media] hdpvr: fix up i2c device registration

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We have to actually call i2c_new_device() once for each of the rx and tx
addresses. Also improve error-handling and device remove i2c cleanup.

Reviewed-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jarod Wilson 2011-01-19 18:10:14 -03:00 committed by Mauro Carvalho Chehab
parent 86ee659488
commit 7f2a06deaa
3 changed files with 42 additions and 17 deletions
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24
drivers/media/video/hdpvr/hdpvr-core.c
View file

@ -283,6 +283,7 @@ static int hdpvr_probe(struct usb_interface *interface,
struct hdpvr_device *dev;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
struct i2c_client *client;
size_t buffer_size;
int i;
int retval = -ENOMEM;
@ -381,13 +382,21 @@ static int hdpvr_probe(struct usb_interface *interface,
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
retval = hdpvr_register_i2c_adapter(dev);
if (retval < 0) {
v4l2_err(&dev->v4l2_dev, "registering i2c adapter failed\n");
v4l2_err(&dev->v4l2_dev, "i2c adapter register failed\n");
goto error;
}
retval = hdpvr_register_i2c_ir(dev);
if (retval < 0)
v4l2_err(&dev->v4l2_dev, "registering i2c IR devices failed\n");
client = hdpvr_register_ir_rx_i2c(dev);
if (!client) {
v4l2_err(&dev->v4l2_dev, "i2c IR RX device register failed\n");
goto reg_fail;
}
client = hdpvr_register_ir_tx_i2c(dev);
if (!client) {
v4l2_err(&dev->v4l2_dev, "i2c IR TX device register failed\n");
goto reg_fail;
}
#endif
/* let the user know what node this device is now attached to */
@ -395,6 +404,10 @@ static int hdpvr_probe(struct usb_interface *interface,
video_device_node_name(dev->video_dev));
return 0;
reg_fail:
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_adapter(&dev->i2c_adapter);
#endif
error:
if (dev) {
/* Destroy single thread */
@ -424,6 +437,9 @@ static void hdpvr_disconnect(struct usb_interface *interface)
mutex_lock(&dev->io_mutex);
hdpvr_cancel_queue(dev);
mutex_unlock(&dev->io_mutex);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_adapter(&dev->i2c_adapter);
#endif
video_unregister_device(dev->video_dev);
atomic_dec(&dev_nr);
}

32
drivers/media/video/hdpvr/hdpvr-i2c.c
View file

@ -31,26 +31,34 @@
#define Z8F0811_IR_RX_I2C_ADDR 0x71
static struct i2c_board_info hdpvr_i2c_board_info = {
I2C_BOARD_INFO("ir_tx_z8f0811_hdpvr", Z8F0811_IR_TX_I2C_ADDR),
I2C_BOARD_INFO("ir_rx_z8f0811_hdpvr", Z8F0811_IR_RX_I2C_ADDR),
};
int hdpvr_register_i2c_ir(struct hdpvr_device *dev)
struct i2c_client *hdpvr_register_ir_tx_i2c(struct hdpvr_device *dev)
{
struct i2c_client *c;
struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
struct i2c_board_info hdpvr_ir_tx_i2c_board_info = {
I2C_BOARD_INFO("ir_tx_z8f0811_hdpvr", Z8F0811_IR_TX_I2C_ADDR),
};
init_data->name = "HD-PVR";
hdpvr_ir_tx_i2c_board_info.platform_data = init_data;
return i2c_new_device(&dev->i2c_adapter, &hdpvr_ir_tx_i2c_board_info);
}
struct i2c_client *hdpvr_register_ir_rx_i2c(struct hdpvr_device *dev)
{
struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
struct i2c_board_info hdpvr_ir_rx_i2c_board_info = {
I2C_BOARD_INFO("ir_rx_z8f0811_hdpvr", Z8F0811_IR_RX_I2C_ADDR),
};
/* Our default information for ir-kbd-i2c.c to use */
init_data->ir_codes = RC_MAP_HAUPPAUGE_NEW;
init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
init_data->type = RC_TYPE_RC5;
init_data->name = "HD PVR";
hdpvr_i2c_board_info.platform_data = init_data;
init_data->name = "HD-PVR";
hdpvr_ir_rx_i2c_board_info.platform_data = init_data;
c = i2c_new_device(&dev->i2c_adapter, &hdpvr_i2c_board_info);
return (c == NULL) ? -ENODEV : 0;
return i2c_new_device(&dev->i2c_adapter, &hdpvr_ir_rx_i2c_board_info);
}
static int hdpvr_i2c_read(struct hdpvr_device *dev, int bus,

3
drivers/media/video/hdpvr/hdpvr.h
View file

@ -313,7 +313,8 @@ int hdpvr_cancel_queue(struct hdpvr_device *dev);
/* i2c adapter registration */
int hdpvr_register_i2c_adapter(struct hdpvr_device *dev);
int hdpvr_register_i2c_ir(struct hdpvr_device *dev);
struct i2c_client *hdpvr_register_ir_rx_i2c(struct hdpvr_device *dev);
struct i2c_client *hdpvr_register_ir_tx_i2c(struct hdpvr_device *dev);
/*========================================================================*/
/* buffer management */