update comments to provide better understanding of enumeration flows.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- drivers/soundwire/bus.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index bca378806d00..2354675ef104 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -483,7 +483,8 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
ret = sdw_write(slave, SDW_SCP_DEVNUMBER, dev_num); if (ret < 0) { - dev_err(&slave->dev, "Program device_num failed: %d\n", ret); + dev_err(&slave->dev, "Program device_num %d failed: %d\n", + dev_num, ret); return ret; }
@@ -540,6 +541,7 @@ static int sdw_program_device_num(struct sdw_bus *bus) do { ret = sdw_transfer(bus, &msg); if (ret == -ENODATA) { /* end of device id reads */ + dev_dbg(bus->dev, "No more devices to enumerate\n"); ret = 0; break; } @@ -982,6 +984,7 @@ int sdw_handle_slave_status(struct sdw_bus *bus, int i, ret = 0;
if (status[0] == SDW_SLAVE_ATTACHED) { + dev_err(bus->dev, "Slave attached, programming device number\n"); ret = sdw_program_device_num(bus); if (ret) dev_err(bus->dev, "Slave attach failed: %d\n", ret);