[PATCH 4/5] power: imx8: Check owned resource in power on

Peng Fan peng.fan at nxp.com
Sun May 3 16:33:22 CEST 2020


From: Ye Li <ye.li at nxp.com>

When fspi is assigned to M4, we have to let the fspi probe failed when
its power domain is failed to power up. Because not all devices have power
domain (for example, external devices on the board). Current checking
resource owner in power domain probe is not good, change to check it in
power on.

Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 drivers/power/domain/imx8-power-domain-legacy.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/power/domain/imx8-power-domain-legacy.c b/drivers/power/domain/imx8-power-domain-legacy.c
index b68be40766..a5f2f8a445 100644
--- a/drivers/power/domain/imx8-power-domain-legacy.c
+++ b/drivers/power/domain/imx8-power-domain-legacy.c
@@ -91,6 +91,9 @@ static int imx8_power_domain_on(struct power_domain *power_domain)
 		return 0;
 
 	if (pdata->resource_id != SC_R_LAST) {
+		if (!sc_rm_is_resource_owned(-1, pdata->resource_id))
+			printf("%s [%d] not owned by curr partition\n", dev->name, pdata->resource_id);
+
 		ret = sc_pm_set_resource_power_mode(-1, pdata->resource_id,
 						    SC_PM_PW_MODE_ON);
 		if (ret) {
-- 
2.16.4



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