Messages in this thread Patch in this message | | | From | Pierre-Louis Bossart <> | Subject | [PATCH v3 10/22] soundwire: intel: call helper to reset Slave states on resume | Date | Thu, 14 Nov 2019 12:16:50 -0600 |
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This helps make sure they are all UNATTACHED and reset the state machines.
At the moment we perform a bus reset both for resume and pm_resume, this will be modified when clock-stop mode is supported
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> --- drivers/soundwire/intel.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index b2bc99970245..e3741c3afe1c 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1402,6 +1402,9 @@ static int intel_resume(struct device *dev) return ret; } + /* make sure all Slaves are tagged as UNATTACHED */ + sdw_clear_slave_status(&sdw->cdns.bus); + ret = sdw_cdns_enable_interrupt(cdns, true); if (ret < 0) { dev_err(dev, "cannot enable interrupts during resume\n"); @@ -1435,6 +1438,9 @@ static int intel_resume_runtime(struct device *dev) return ret; } + /* make sure all Slaves are tagged as UNATTACHED */ + sdw_clear_slave_status(&sdw->cdns.bus); + ret = sdw_cdns_enable_interrupt(cdns, true); if (ret < 0) { dev_err(dev, "cannot enable interrupts during resume\n"); -- 2.20.1
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