github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 10:09:10 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

pmdomain: arm_scmi: add support for domain hierarchies

Browse Source 
After primary SCMI pmdomain is created, use new of_genpd helper which
checks for child domain mappings defined in power-domains-child-ids.

Also remove any child domain mappings when SCMI domain is removed.

Signed-off-by: Kevin Hilman (TI) <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kevin Hilman (TI) 2026-04-20 16:51:19 -07:00 committed by Ulf Hansson
parent 29e34a882b
commit fba9c703c1
1 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/pmdomain/arm/scmi_pm_domain.c
View File

@ -113,6 +113,15 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev)
goto err_rm_genpds;
dev_set_drvdata(dev, scmi_pd_data);
/*
* Parse (optional) power-domains-child-ids property to establish
* parent-child relationships.
*/
ret = of_genpd_add_child_ids(np, scmi_pd_data);
if (ret < 0)
dev_err(dev, "Failed to add child domain hierarchy: %d\n", ret);
dev_info(dev, "Initialized %d power domains", num_domains);
return 0;
@ -130,9 +139,13 @@ static void scmi_pm_domain_remove(struct scmi_device *sdev)
struct device *dev = &sdev->dev;
struct device_node *np = dev->of_node;
scmi_pd_data = dev_get_drvdata(dev);
/* Remove any parent-child relationships established at probe time */
of_genpd_remove_child_ids(np, scmi_pd_data);
of_genpd_del_provider(np);
scmi_pd_data = dev_get_drvdata(dev);
for (i = 0; i < scmi_pd_data->num_domains; i++) {
if (!scmi_pd_data->domains[i])
continue;