[PATCH] soundwire: bus: update Slave status in sdw_clear_slave_status

From: Bard Liao
Date: Tue Jul 13 2021 - 23:36:40 EST


Call to sdw_update_slave_status() needs to be added to sdw_clear_slave_
status() to ensure Slaves are informed of the new status via update_
status() callback.

This will enable codec drivers to reset their internal states and make
sure the register settings are properly restored on pm_runtime or
system resume

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
---
drivers/soundwire/bus.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index baa236cb5484..1b115734a8f6 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -1860,6 +1860,7 @@ void sdw_clear_slave_status(struct sdw_bus *bus, u32 request)
if (slave->status != SDW_SLAVE_UNATTACHED) {
sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED);
slave->first_interrupt_done = false;
+ sdw_update_slave_status(slave, SDW_SLAVE_UNATTACHED);
}

/* keep track of request, used in pm_runtime resume */
--
2.17.1