diff options
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-camera.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-camera.c b/drivers/media/usb/em28xx/em28xx-camera.c index 2f59237ee399..f401e5aa1373 100644 --- a/drivers/media/usb/em28xx/em28xx-camera.c +++ b/drivers/media/usb/em28xx/em28xx-camera.c @@ -98,8 +98,6 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev) { int ret, i; char *name; - u8 reg; - __be16 id_be; u16 id; struct i2c_client *client = &dev->i2c_client[dev->def_i2c_bus]; @@ -107,10 +105,8 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev) dev->em28xx_sensor = EM28XX_NOSENSOR; for (i = 0; micron_sensor_addrs[i] != I2C_CLIENT_END; i++) { client->addr = micron_sensor_addrs[i]; - /* NOTE: i2c_smbus_read_word_data() doesn't work with BE data */ /* Read chip ID from register 0x00 */ - reg = 0x00; - ret = i2c_master_send(client, ®, 1); + ret = i2c_smbus_read_word_data(client, 0x00); /* assumes LE */ if (ret < 0) { if (ret != -ENXIO) dev_err(&dev->intf->dev, @@ -118,24 +114,9 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev) client->addr << 1, ret); continue; } - ret = i2c_master_recv(client, (u8 *)&id_be, 2); - if (ret < 0) { - dev_err(&dev->intf->dev, - "couldn't read from i2c device 0x%02x: error %i\n", - client->addr << 1, ret); - continue; - } - id = be16_to_cpu(id_be); + id = swab16(ret); /* LE -> BE */ /* Read chip ID from register 0xff */ - reg = 0xff; - ret = i2c_master_send(client, ®, 1); - if (ret < 0) { - dev_err(&dev->intf->dev, - "couldn't read from i2c device 0x%02x: error %i\n", - client->addr << 1, ret); - continue; - } - ret = i2c_master_recv(client, (u8 *)&id_be, 2); + ret = i2c_smbus_read_word_data(client, 0xff); if (ret < 0) { dev_err(&dev->intf->dev, "couldn't read from i2c device 0x%02x: error %i\n", @@ -143,10 +124,9 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev) continue; } /* Validate chip ID to be sure we have a Micron device */ - if (id != be16_to_cpu(id_be)) + if (id != swab16(ret)) continue; /* Check chip ID */ - id = be16_to_cpu(id_be); switch (id) { case 0x1222: name = "MT9V012"; /* MI370 */ /* 640x480 */ |