On 2020/05/13, Sebastian Reichel wrote: > From: Jean-Francois Dagenais <jeff.dagen...@gmail.com> > > In certain designs, it is possible to add a battery on a populated i2c > bus without an sbs compliant charger. In that case, the battery will > un-necessarily and sometimes un-desirably master the bus trying to write > info in the charger.
Nit: s/un-/un/ > > It is observed in many occasion that these battery "broadcasts" are even > corrupting other ongoing master to slave communication. I.e. the > multi-master support in the battery is inadequate. > > Thankfully, the CHARGER_MODE bit allows designers to disable that SBS > battery behaviour. > > This needs to be done once when the battery is first seen on the bus. > > Signed-off-by: Jean-Francois Dagenais <jeff.dagen...@gmail.com> > [rebased code] > Signed-off-by: Sebastian Reichel <sebastian.reic...@collabora.com> > --- > @@ -1017,6 +1043,9 @@ static int sbs_probe(struct i2c_client *client, > } > chip->i2c_retry_count = chip->i2c_retry_count + 1; > > + chip->charger_broadcasts = !of_property_read_bool(client->dev.of_node, > + "sbs,disable-charger-broadcasts"); > + This patch adds the of_property_read, only for it to be replaced in the next patch. Consider flipping the patch order? -Emil
