Add this new API to power on multiple domains attached
to a device.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Lokesh Vutla <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
---
V3:
Fix build break
Add R-b tag
V2:
create dev_power_domain_on
drivers/power/domain/power-domain-uclass.c | 22 ++++++++++++++++++++++
include/power-domain.h | 17 +++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/drivers/power/domain/power-domain-uclass.c
b/drivers/power/domain/power-domain-uclass.c
index 2ea0ff24c7..6eb4267de3 100644
--- a/drivers/power/domain/power-domain-uclass.c
+++ b/drivers/power/domain/power-domain-uclass.c
@@ -107,6 +107,28 @@ int power_domain_off(struct power_domain *power_domain)
return ops->off(power_domain);
}
+
+#if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA))
+int dev_power_domain_on(struct udevice *dev)
+{
+ struct power_domain pd;
+ int i, count, ret;
+
+ count = dev_count_phandle_with_args(dev, "power-domains",
+ "#power-domain-cells");
+ for (i = 0; i < count; i++) {
+ ret = power_domain_get_by_index(dev, &pd, i);
+ if (ret)
+ return ret;
+ ret = power_domain_on(&pd);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
UCLASS_DRIVER(power_domain) = {
.id = UCLASS_POWER_DOMAIN,
.name = "power_domain",
diff --git a/include/power-domain.h b/include/power-domain.h
index ef15dc9f60..490fedbb12 100644
--- a/include/power-domain.h
+++ b/include/power-domain.h
@@ -155,4 +155,21 @@ static inline int power_domain_off(struct power_domain
*power_domain)
}
#endif
+/**
+ * dev_power_domain_on - Enable power domains for a device .
+ *
+ * @dev: The client device.
+ *
+ * @return 0 if OK, or a negative error code.
+ */
+#if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) && \
+ CONFIG_IS_ENABLED(POWER_DOMAIN)
+int dev_power_domain_on(struct udevice *dev);
+#else
+static inline int dev_power_domain_on(struct udevice *dev)
+{
+ return 0;
+}
+#endif
+
#endif
--
2.16.4
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