Commit 99b6a30f authored by Pierre-Louis Bossart's avatar Pierre-Louis Bossart Committed by Vinod Koul

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: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200817152923.3259-5-yung-chuan.liao@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent cb1e6d59
...@@ -1516,6 +1516,12 @@ static int intel_resume(struct device *dev) ...@@ -1516,6 +1516,12 @@ static int intel_resume(struct device *dev)
return ret; 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); ret = sdw_cdns_enable_interrupt(cdns, true);
if (ret < 0) { if (ret < 0) {
dev_err(dev, "cannot enable interrupts during resume\n"); dev_err(dev, "cannot enable interrupts during resume\n");
...@@ -1562,6 +1568,12 @@ static int intel_resume_runtime(struct device *dev) ...@@ -1562,6 +1568,12 @@ static int intel_resume_runtime(struct device *dev)
return ret; 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); ret = sdw_cdns_enable_interrupt(cdns, true);
if (ret < 0) { if (ret < 0) {
dev_err(dev, "cannot enable interrupts during resume\n"); dev_err(dev, "cannot enable interrupts during resume\n");
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment