diff options
Diffstat (limited to 'drivers/hwmon/adt7475.c')
| -rw-r--r-- | drivers/hwmon/adt7475.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 5f2541c11fe9..8cefa14e1633 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -1704,12 +1704,15 @@ static int adt7475_pwm_properties_parse_reference_args(struct fwnode_handle *fwn if (ret) return ret; - if (rargs.nargs != 4) { + if (rargs.nargs != 3 && rargs.nargs != 4) { fwnode_handle_put(rargs.fwnode); return -EINVAL; } - for (i = 0; i < 4; i++) + /* Let duty_cycle default to period */ + args[3] = rargs.args[1]; + + for (i = 0; i < rargs.nargs; i++) args[i] = rargs.args[i]; ret = _adt7475_pwm_properties_parse_args(args, cfg); @@ -1724,11 +1727,22 @@ static int adt7475_pwm_properties_parse_args(struct fwnode_handle *fwnode, { int ret; u32 args[4] = {}; + size_t n_vals = fwnode_property_count_u32(fwnode, "pwms"); + + if (n_vals != 3 && n_vals != 4) + return -EOVERFLOW; - ret = fwnode_property_read_u32_array(fwnode, "pwms", args, ARRAY_SIZE(args)); + ret = fwnode_property_read_u32_array(fwnode, "pwms", args, n_vals); if (ret) return ret; + /* + * If there are no item to define the duty_cycle, default it to the + * period. + */ + if (n_vals == 3) + args[3] = args[1]; + return _adt7475_pwm_properties_parse_args(args, cfg); } |