linux_dsm_epyc7002/drivers/soundwire
Pierre-Louis Bossart 64d579453b 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>
2021-05-11 14:47:19 +02:00
..
bus_type.c soundwire: bus: add enumerated Slave device to device list 2020-09-28 11:17:40 +05:30
bus.c soundwire: bus: fix confusion on device used by pm_runtime 2021-03-04 11:38:14 +01:00
bus.h soundwire: bus: add enumerated Slave device to device list 2020-09-28 11:17:40 +05:30
cadence_master.c soundwire: cadence: only prepare attached devices on clock stop 2021-05-11 14:47:19 +02:00
cadence_master.h soundwire: cadence: fix race condition between suspend and Slave device alerts 2020-09-09 13:14:42 +05:30
debugfs.c
generic_bandwidth_allocation.c soundwire: remove an unnecessary NULL check 2020-09-23 15:34:48 +05:30
intel_init.c soundwire: intel: fix possible crash when no device is detected 2021-03-04 11:38:22 +01:00
intel.c soundwire: intel: enable test modes 2020-09-23 15:29:30 +05:30
intel.h soundwire: intel: pass link_mask information to each master 2020-09-03 16:14:39 +05:30
Kconfig soundwire: Add generic bandwidth allocation algorithm 2020-09-18 17:48:51 +05:30
Makefile soundwire: Add generic bandwidth allocation algorithm 2020-09-18 17:48:51 +05:30
master.c soundwire: master: use pm_runtime_set_active() on add 2020-12-30 11:53:28 +01:00
mipi_disco.c soundwire: fix port_ready[] dynamic allocation in mipi_disco 2020-09-03 16:02:29 +05:30
qcom.c soundwire: qcom: Fix build failure when slimbus is module 2020-12-30 11:53:22 +01:00
slave.c soundwire: sysfs: add slave status and device number before probe 2020-09-28 11:17:43 +05:30
stream.c soundwire updates for 5.10-rc1 2020-10-01 22:59:55 +02:00
sysfs_local.h soundwire: sysfs: add slave status and device number before probe 2020-09-28 11:17:43 +05:30
sysfs_slave_dpn.c soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute 2020-12-30 11:53:20 +01:00
sysfs_slave.c soundwire: sysfs: add slave status and device number before probe 2020-09-28 11:17:43 +05:30