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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2022-04-20 04:32:40 +0200
committerVinod Koul <vkoul@kernel.org>2022-05-09 08:31:09 +0200
commite286472cff8a6785f6fa7950a1ab1b485cc87885 (patch)
tree8d4ce7228a6b9b5b229fc5784ba23d6fcf3f2728 /drivers/soundwire/bus.c
parentsoundwire: intel: prevent pm_runtime resume prior to system suspend (diff)
downloadlinux-e286472cff8a6785f6fa7950a1ab1b485cc87885.tar.xz
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soundwire: intel: disable WAKEEN in pm_runtime resume
When the manager device is pm_runtime resumed, we see a series of spurious wakes and attempts to resume the same device: soundwire_intel.link.0: intel_resume_runtime: start soundwire_intel.link.0: intel_link_power_up: powering up all links soundwire_intel.link.0: intel_link_power_up: first link up, programming SYNCPRD soundwire_intel.link.0: intel_shim_wake: WAKEEN disabled for link 0 soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume start soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume done soundwire_intel.link.0: intel_shim_wake: WAKEEN disabled for link 0 soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume start soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume done This sequence does not break anything but is totally unnecessary. Currently the wakes are only disabled after the peripheral generates a wake, e.g. for jack detection. If the resume is initiated by the host drivers as a result of userspace actions (play/record typically), we need to disable wake detection as well. Doing so prevents the spurious wakes and calls to pm_request_resume(). Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20220420023241.14335-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/bus.c')
0 files changed, 0 insertions, 0 deletions