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

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.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent cb1e6d59

drivers/soundwire/intel.c

+12 −0
Original line number Diff line number Diff line
@@ -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");