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power: domain: add dev_power_domain_on

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Add this new API to power on multiple domains attached
to a device.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Changed to static inline and added a condition into C file:
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Peng Fan 2019-09-17 09:29:19 +00:00 committed by Simon Glass
parent 640abba507
commit 9c1e982218
2 changed files with 38 additions and 0 deletions
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21
drivers/power/domain/power-domain-uclass.c
View File

@ -107,6 +107,27 @@ int power_domain_off(struct power_domain *power_domain)
return ops->off(power_domain);
}
#if !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",

17
include/power-domain.h
View File

@ -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