[1/1] i2c: designware: Ensure runtime suspend is invoked during rapid slave unregistration and registration

[ende . tan]

From: Tan En De <ende.tan@xxxxxxxxxxxxxxxx>

Replaced pm_runtime_put() with pm_runtime_put_sync_suspend() to ensure
the runtime suspend is invoked immediately when unregistering a slave.
This prevents a race condition where suspend was skipped when
unregistering and registering slave in quick succession.

Signed-off-by: Tan En De <ende.tan@xxxxxxxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-designware-slave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c
index 5cd4a5f7a472..b936a240db0a 100644
--- a/drivers/i2c/busses/i2c-designware-slave.c
+++ b/drivers/i2c/busses/i2c-designware-slave.c
@@ -96,7 +96,7 @@ static int i2c_dw_unreg_slave(struct i2c_client *slave)
 	i2c_dw_disable(dev);
 	synchronize_irq(dev->irq);
 	dev->slave = NULL;
-	pm_runtime_put(dev->dev);
+	pm_runtime_put_sync_suspend(dev->dev);
 
 	return 0;
 }
-- 
2.34.1