SCMI Voltage protocol allows the platform to report no voltage domains
on discovery, while warning the user about such an odd configuration.
As a consequence this condition should not be treated as error by the SCMI
regulator driver either.
Allow SCMI regulator driver to probe successfully even when no voltage
domains are discovered.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20230126180511.766373-1-cristian.marussi@arm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
return PTR_ERR(voltage_ops);
num_doms = voltage_ops->num_domains_get(ph);
- if (num_doms <= 0) {
- if (!num_doms) {
- dev_err(&sdev->dev,
- "number of voltage domains invalid\n");
- num_doms = -EINVAL;
- } else {
- dev_err(&sdev->dev,
- "failed to get voltage domains - err:%d\n",
- num_doms);
- }
+ if (!num_doms)
+ return 0;
+
+ if (num_doms < 0) {
+ dev_err(&sdev->dev, "failed to get voltage domains - err:%d\n",
+ num_doms);
return num_doms;
}