Constant activity on the i2c-3 bus
Something seems to be constantly talkative on the i2c-3 bus, which doesn't sound like a good thing for the battery life:
[24731.728803] [3739] i2c_imx:i2c_imx_xfer_common:995: i2c i2c-3: <i2c_imx_xfer_common>
[24731.728816] [3739] i2c_imx:i2c_imx_start:604: i2c i2c-3: <i2c_imx_start>
[24731.728995] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.729007] [3739] i2c_imx:i2c_imx_xfer_common:1029: i2c i2c-3: <i2c_imx_xfer_common> transfer message: 0
[24731.729022] [3739] i2c_imx:i2c_imx_write:847: i2c i2c-3: <i2c_imx_write> write slave address: addr=0x6c
[24731.729080] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729090] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.729100] [3739] i2c_imx:i2c_imx_write:857: i2c i2c-3: <i2c_imx_write> write data
[24731.729112] [3739] i2c_imx:i2c_imx_write:863: i2c i2c-3: <i2c_imx_write> write byte: B0=0xA
[24731.729170] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729182] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.729194] [3739] i2c_imx:i2c_imx_xfer_common:1020: i2c i2c-3: <i2c_imx_xfer_common> repeated start
[24731.729206] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.729220] [3739] i2c_imx:i2c_imx_xfer_common:1029: i2c i2c-3: <i2c_imx_xfer_common> transfer message: 1
[24731.729231] [3739] i2c_imx:i2c_imx_read:888: i2c i2c-3: <i2c_imx_read> write slave address: addr=0x6d
[24731.729290] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729303] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.729313] [3739] i2c_imx:i2c_imx_read:899: i2c i2c-3: <i2c_imx_read> setup bus
[24731.729328] [3739] i2c_imx:i2c_imx_read:916: i2c i2c-3: <i2c_imx_read> read data
[24731.729376] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729388] [3739] i2c_imx:i2c_imx_read:968: i2c i2c-3: <i2c_imx_read> set TXAK
[24731.729405] [3739] i2c_imx:i2c_imx_read:979: i2c i2c-3: <i2c_imx_read> read byte: B0=0x7
[24731.729450] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729462] [3739] i2c_imx:i2c_imx_read:949: i2c i2c-3: <i2c_imx_read> clear MSTA
[24731.729476] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.729493] [3739] i2c_imx:i2c_imx_read:979: i2c i2c-3: <i2c_imx_read> read byte: B1=0x0
[24731.729505] [3739] i2c_imx:i2c_imx_xfer_common:1067: i2c i2c-3: <i2c_imx_xfer_common> exit with: success msg: 2
[24731.729617] [3739] i2c_imx:i2c_imx_xfer_common:995: i2c i2c-3: <i2c_imx_xfer_common>
[24731.729630] [3739] i2c_imx:i2c_imx_start:604: i2c i2c-3: <i2c_imx_start>
[24731.729810] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.729824] [3739] i2c_imx:i2c_imx_xfer_common:1029: i2c i2c-3: <i2c_imx_xfer_common> transfer message: 0
[24731.729868] [3739] i2c_imx:i2c_imx_write:847: i2c i2c-3: <i2c_imx_write> write slave address: addr=0x6c
[24731.729928] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.729960] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.729971] [3739] i2c_imx:i2c_imx_write:857: i2c i2c-3: <i2c_imx_write> write data
[24731.729983] [3739] i2c_imx:i2c_imx_write:863: i2c i2c-3: <i2c_imx_write> write byte: B0=0xB
[24731.730045] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.730089] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.730101] [3739] i2c_imx:i2c_imx_xfer_common:1020: i2c i2c-3: <i2c_imx_xfer_common> repeated start
[24731.730146] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.730179] [3739] i2c_imx:i2c_imx_xfer_common:1029: i2c i2c-3: <i2c_imx_xfer_common> transfer message: 1
[24731.730191] [3739] i2c_imx:i2c_imx_read:888: i2c i2c-3: <i2c_imx_read> write slave address: addr=0x6d
[24731.730848] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.730861] [3739] i2c_imx:i2c_imx_acked:536: i2c i2c-3: <i2c_imx_acked> ACK received
[24731.730873] [3739] i2c_imx:i2c_imx_read:899: i2c i2c-3: <i2c_imx_read> setup bus
[24731.730889] [3739] i2c_imx:i2c_imx_read:916: i2c i2c-3: <i2c_imx_read> read data
[24731.730936] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.730948] [3739] i2c_imx:i2c_imx_read:968: i2c i2c-3: <i2c_imx_read> set TXAK
[24731.730963] [3739] i2c_imx:i2c_imx_read:979: i2c i2c-3: <i2c_imx_read> read byte: B0=0x9
[24731.731011] [3739] i2c_imx:i2c_imx_trx_complete:524: i2c i2c-3: <i2c_imx_trx_complete> TRX complete
[24731.731021] [3739] i2c_imx:i2c_imx_read:949: i2c i2c-3: <i2c_imx_read> clear MSTA
[24731.731034] [3739] i2c_imx:i2c_imx_bus_busy:463: i2c i2c-3: <i2c_imx_bus_busy>
[24731.731048] [3739] i2c_imx:i2c_imx_read:979: i2c i2c-3: <i2c_imx_read> read byte: B1=0x0
[24731.731061] [3739] i2c_imx:i2c_imx_xfer_common:1067: i2c i2c-3: <i2c_imx_xfer_common> exit with: success msg: 2