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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2019-08-06 03:55:09 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-08-21 12:06:01 +0300 |
| commit | 6e0ac6a663b834b9ea16b2340e66aa3717c465b2 (patch) | |
| tree | e953cc58ad5d0b73432251b451ad104e92b28f6d /drivers/soundwire/bus.c | |
| parent | 9b5884a0c60b7194fd62d48f62f893f353f41eb4 (diff) | |
| download | linux-6e0ac6a663b834b9ea16b2340e66aa3717c465b2.tar.xz | |
soundwire: bus: improve dynamic debug comments for enumeration
update comments to provide better understanding of enumeration flows.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190806005522.22642-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/bus.c')
| -rw-r--r-- | drivers/soundwire/bus.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 49f64b2115b9..50f9cc5eb5f6 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -470,7 +470,8 @@ 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; } @@ -527,6 +528,7 @@ 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; } @@ -969,6 +971,7 @@ int sdw_handle_slave_status(struct sdw_bus *bus, int i, ret = 0; if (status[0] == SDW_SLAVE_ATTACHED) { + dev_dbg(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); |