diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i3c/master.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 9e6be49bebb2..53b34b4f44a2 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -758,6 +758,32 @@ static ssize_t dev_nack_retry_count_store(struct device *dev, static DEVICE_ATTR_RW(dev_nack_retry_count); +static ssize_t do_daa_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i3c_master_controller *master = dev_to_i3cmaster(dev); + bool val; + int ret; + + if (kstrtobool(buf, &val)) + return -EINVAL; + + if (!val) + return -EINVAL; + + if (!master->init_done) + return -EAGAIN; + + ret = i3c_master_do_daa(master); + if (ret) + return ret; + + return count; +} + +static DEVICE_ATTR_WO(do_daa); + static struct attribute *i3c_masterdev_attrs[] = { &dev_attr_mode.attr, &dev_attr_current_master.attr, @@ -769,6 +795,7 @@ static struct attribute *i3c_masterdev_attrs[] = { &dev_attr_dynamic_address.attr, &dev_attr_hdrcap.attr, &dev_attr_hotjoin.attr, + &dev_attr_do_daa.attr, NULL, }; ATTRIBUTE_GROUPS(i3c_masterdev); |