diff options
Diffstat (limited to 'drivers/i2c/i2c-core-base.c')
| -rw-r--r-- | drivers/i2c/i2c-core-base.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index a17f46a95f73..301285c54603 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -198,7 +198,16 @@ int i2c_generic_scl_recovery(struct i2c_adapter *adap) val = !val; bri->set_scl(adap, val); - ndelay(RECOVERY_NDELAY); + + /* + * If we can set SDA, we will always create STOP here to ensure + * the additional pulses will do no harm. This is achieved by + * letting SDA follow SCL half a cycle later. + */ + ndelay(RECOVERY_NDELAY / 2); + if (bri->set_sda) + bri->set_sda(adap, val); + ndelay(RECOVERY_NDELAY / 2); } /* check if recovery actually succeeded */ @@ -717,10 +726,6 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) client->adapter = adap; client->dev.platform_data = info->platform_data; - - if (info->archdata) - client->dev.archdata = *info->archdata; - client->flags = info->flags; client->addr = info->addr; @@ -746,7 +751,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) client->dev.parent = &client->adapter->dev; client->dev.bus = &i2c_bus_type; client->dev.type = &i2c_client_type; - client->dev.of_node = info->of_node; + client->dev.of_node = of_node_get(info->of_node); client->dev.fwnode = info->fwnode; i2c_dev_set_name(adap, client, info); @@ -757,7 +762,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) dev_err(&adap->dev, "Failed to add properties to client %s: %d\n", client->name, status); - goto out_err; + goto out_err_put_of_node; } } @@ -773,6 +778,8 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) out_free_props: if (info->properties) device_remove_properties(&client->dev); +out_err_put_of_node: + of_node_put(info->of_node); out_err: dev_err(&adap->dev, "Failed to register i2c client %s at 0x%02x (%d)\n", |