| Message ID | 20200504131654.17085-4-peng.fan@nxp.com |
|---|---|
| State | Accepted |
| Commit | e8f8b5ccf2b1b02f1614941d025c31cfbf78ab2b |
| Headers | show |
| Series | [V2,1/6] dt-bindings: imx_rsrc: add SC_R_NONE | expand |
> 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> Applied to u-boot-imx, master, thanks ! Best regards, Stefano Babic
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, SC_PM_PW_MODE_OFF); 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;
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(-)