When entering the suspend callback, at first we should ensure that
transfers are finished and I2C core can't start further transfers.
Use i2c_mark_adapter_suspended() for this purpose, and complement it
with a call to i2c_mark_adapter_resumed() in the resume path.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
Rebased version of a previously discussed patch, now w/o touching
the remove and shutdown path.
---
drivers/i2c/busses/i2c-i801.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 6d02a8b88..26f132277 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1818,6 +1818,7 @@ static int i801_suspend(struct device *dev)
{
struct i801_priv *priv = dev_get_drvdata(dev);
+ i2c_mark_adapter_suspended(&priv->adapter);
i801_restore_regs(priv);
return 0;
@@ -1829,6 +1830,7 @@ static int i801_resume(struct device *dev)
i801_setup_hstcfg(priv);
i801_enable_host_notify(&priv->adapter);
+ i2c_mark_adapter_resumed(&priv->adapter);
return 0;
}
--
2.42.0
