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author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2021-03-23 09:37:07 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-11 14:47:19 +0200 |
commit | 64d579453bd6b42e1f54ea8eafdd9d8fdadff0dd (patch) | |
tree | 771d750cdea73825caa86a68d34be82918eb25a8 /drivers/perf | |
parent | 9584ce366cc9a363fb5972e3d1003598583ba343 (diff) |
soundwire: cadence: only prepare attached devices on clock stop
[ Upstream commit 58ef9356260c291a4321e07ff507f31a1d8212af ]
We sometimes see COMMAND_IGNORED responses during the clock stop
sequence. It turns out we already have information if devices are
present on a link, so we should only prepare those when they
are attached.
In addition, even when COMMAND_IGNORED are received, we should still
proceed with the clock stop. The device will not be prepared but
that's not a problem.
The only case where the clock stop will fail is if the Cadence IP
reports an error (including a timeout), or if the devices throw a
COMMAND_FAILED response.
BugLink: https://github.com/thesofproject/linux/issues/2621
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210323013707.21455-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/perf')
0 files changed, 0 insertions, 0 deletions