Enable async suspend/resume of i2c adapters. It enormously helps with reducing the resume time of systems (as much as 20%-40%) where I2C devices can take significant time (100s of ms) to resume. Signed-off-by: Rajat Jain <rajatja@xxxxxxxxxx> Tested-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx> --- v2: Add Jarkko's tested by drivers/i2c/i2c-core-base.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 54964fbe3f03..8d4f2be54e17 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1576,6 +1576,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap) if (res) goto out_reg; + device_enable_async_suspend(&adap->dev); pm_runtime_no_callbacks(&adap->dev); pm_suspend_ignore_children(&adap->dev, true); pm_runtime_enable(&adap->dev); -- 2.33.0.1079.g6e70778dc9-goog
