diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2020-01-15 01:08:44 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-02-25 11:27:02 +0100 |
| commit | dde73538c9a5f537fe1d6ae4a563507343ec6587 (patch) | |
| tree | 3e7be3faf888705ddbc7650740afc3fb0bf46ee6 /drivers/soundwire | |
| parent | soundwire: bus: add clock stop helpers (diff) | |
| download | linux-dde73538c9a5f537fe1d6ae4a563507343ec6587.tar.xz linux-dde73538c9a5f537fe1d6ae4a563507343ec6587.zip | |
soundwire: bus: don't treat CMD_IGNORED as error on ClockStop
If a SoundWire link is enabled, but there are no Slave devices exposed
in firmware tables for this link, or no Slaves in ATTACHED or ALERT
mode, the CMD_IGNORED/-ENODATA error code on a broadcast write is
perfectly legit.
Filter this case to report errors and let the caller deal with the
CMD_IGNORED case.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200115000844.14695-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/bus.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 3395abd2ed39..13887713f311 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -922,8 +922,12 @@ int sdw_bus_clk_stop(struct sdw_bus *bus) ret = sdw_bwrite_no_pm(bus, SDW_BROADCAST_DEV_NUM, SDW_SCP_CTRL, SDW_SCP_CTRL_CLK_STP_NOW); if (ret < 0) { - dev_err(bus->dev, - "ClockStopNow Broadcast message failed %d", ret); + if (ret == -ENODATA) + dev_dbg(bus->dev, + "ClockStopNow Broadcast msg ignored %d", ret); + else + dev_err(bus->dev, + "ClockStopNow Broadcast msg failed %d", ret); return ret; } |