diff options
Diffstat (limited to 'drivers/i3c/master.c')
| -rw-r--r-- | drivers/i3c/master.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 656f0398d3e5..8ad15e2dcc62 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -3048,6 +3048,26 @@ int i3c_for_each_dev(void *data, int (*fn)(struct device *, void *)) } EXPORT_SYMBOL_GPL(i3c_for_each_dev); +int i3c_dev_control_pec(struct i3c_dev_desc *dev, bool pec) +{ + struct i3c_master_controller *master = i3c_dev_get_master(dev); + + if (!master->pec_supported) + return -EOPNOTSUPP; + + dev->info.pec = pec; + + /* + * TODO: There are two cases which shall be covered + * 1. Controller doesn't support PEC. + * In this case we could just fallback to SW implementation. + * 2. Device doesn't support PEC. + * Then we really can't use PEC - and should error-out. + */ + + return 0; +} + static int __init i3c_init(void) { return bus_register(&i3c_bus_type); |