[PATCH 3/5] power: imx8: remove the resource owned check before power off

Peng Fan peng.fan at nxp.com
Sun May 3 16:33:21 CEST 2020

For all the devices used and set ACTIVE in U-Boot, U-Boot needs
to power off all of them without the check of resource owner.

When we create software partition before booting Linux, the resource
own checkw will return false, and cause the power domain not powered
off. If without the check of resource owner, the power domain in
the other software partition could be powered off with parent
partition could access child partition resources.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
 drivers/power/domain/imx8-power-domain-legacy.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/power/domain/imx8-power-domain-legacy.c b/drivers/power/domain/imx8-power-domain-legacy.c
index e6e619358c..b68be40766 100644
--- a/drivers/power/domain/imx8-power-domain-legacy.c
+++ b/drivers/power/domain/imx8-power-domain-legacy.c
@@ -137,13 +137,13 @@ static int imx8_power_domain_off_node(struct power_domain *power_domain)
 	if (pdata->resource_id != SC_R_LAST) {
-		if (!sc_rm_is_resource_owned(-1, pdata->resource_id)) {
-			printf("%s not owned by curr partition\n", dev->name);
-			return 0;
-		}
 		ret = sc_pm_set_resource_power_mode(-1, pdata->resource_id,
 		if (ret) {
+			if (!sc_rm_is_resource_owned(-1, pdata->resource_id)) {
+				printf("%s not owned by curr partition %d\n", dev->name, pdata->resource_id);
+				return 0;
+			}
 			printf("Error: %s Power off failed! (error = %d)\n",
 			       dev->name, ret);
 			return -EIO;

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