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soundwire: intel: call helper to reset Slave states on resume 

This helps make sure they are all UNATTACHED and reset the state
machines.

At the moment we perform a bus reset both for system resume and
pm_runtime resume, this will be modified when clock-stop mode is
supported

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200817152923.3259-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2020-08-17 23:29:15 +08:00 committed by Vinod Koul
parent cb1e6d59e8
commit 99b6a30f9f
1 changed files with 12 additions and 0 deletions
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12
drivers/soundwire/intel.c
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@ -1516,6 +1516,12 @@ static int intel_resume(struct device *dev)
return ret;
}
/*
* make sure all Slaves are tagged as UNATTACHED and provide
* reason for reinitialization
*/
sdw_clear_slave_status(bus, SDW_UNATTACH_REQUEST_MASTER_RESET);
ret = sdw_cdns_enable_interrupt(cdns, true);
if (ret < 0) {
dev_err(dev, "cannot enable interrupts during resume\n");
@ -1562,6 +1568,12 @@ static int intel_resume_runtime(struct device *dev)
return ret;
}
/*
* make sure all Slaves are tagged as UNATTACHED and provide
* reason for reinitialization
*/
sdw_clear_slave_status(bus, SDW_UNATTACH_REQUEST_MASTER_RESET);
ret = sdw_cdns_enable_interrupt(cdns, true);
if (ret < 0) {
dev_err(dev, "cannot enable interrupts during resume\n");