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| author |   Richard Fitzgerald <rf@opensource.cirrus.com> | 2021-06-18 15:47:45 +0100 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2021-06-20 16:46:18 +0530 |
| commit | 3d3e88e336338834086278236d42039f3cde50e1 (patch) | |
| tree | 709c732f4904b226a1b6748f3630e57aaf9aa908 /include/uapi/git:/ssh:/git@git.zx2c4.com | |
| parent | soundwire: bus: Make sdw_nwrite() data pointer argument const (diff) | |
soundwire: stream: Fix test for DP prepare complete
In sdw_prep_deprep_slave_ports(), after the wait_for_completion()
the DP prepare status register is read. If this indicates that the
port is now prepared, the code should continue with the port setup.
It is irrelevant whether the wait_for_completion() timed out if the
port is now ready.
The previous implementation would always fail if the
wait_for_completion() timed out, even if the port was reporting
successful prepare.
This patch also fixes a minor bug where the return from sdw_read()
was not checked for error - any error code with LSBits clear could
be misinterpreted as a successful port prepare.
Fixes: 79df15b7d37c ("soundwire: Add helpers for ports operations")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210618144745.30629-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/uapi/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions