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Merge back new PM domains material for v5.15.

This commit is contained in:
Rafael J. Wysocki 2021-08-30 19:20:32 +02:00
parent 3c5a272202 656164181e
commit bc0d0b1dfe
4 changed files with 55 additions and 12 deletions
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24
arch/arm64/boot/dts/qcom/sc7180.dtsi
View File

@ -786,6 +786,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -838,6 +840,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -890,6 +894,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -924,6 +930,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -976,6 +984,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1010,6 +1020,8 @@
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1075,6 +1087,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1127,6 +1141,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1161,6 +1177,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1213,6 +1231,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1247,6 +1267,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
@ -1299,6 +1321,8 @@
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};

30
drivers/base/power/domain.c
View File

@ -2604,6 +2604,12 @@ static void genpd_dev_pm_detach(struct device *dev, bool power_off)
dev_dbg(dev, "removing from PM domain %s\n", pd->name);
/* Drop the default performance state */
if (dev_gpd_data(dev)->default_pstate) {
dev_pm_genpd_set_performance_state(dev, 0);
dev_gpd_data(dev)->default_pstate = 0;
}
for (i = 1; i < GENPD_RETRY_MAX_MS; i <<= 1) {
ret = genpd_remove_device(pd, dev);
if (ret != -EAGAIN)
@ -2643,6 +2649,7 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
{
struct of_phandle_args pd_args;
struct generic_pm_domain *pd;
int pstate;
int ret;
ret = of_parse_phandle_with_args(dev->of_node, "power-domains",
@ -2681,10 +2688,29 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
genpd_unlock(pd);
}
if (ret)
if (ret) {
genpd_remove_device(pd, dev);
return -EPROBE_DEFER;
}
return ret ? -EPROBE_DEFER : 1;
/* Set the default performance state */
pstate = of_get_required_opp_performance_state(dev->of_node, index);
if (pstate < 0 && pstate != -ENODEV && pstate != -EOPNOTSUPP) {
ret = pstate;
goto err;
} else if (pstate > 0) {
ret = dev_pm_genpd_set_performance_state(dev, pstate);
if (ret)
goto err;
dev_gpd_data(dev)->default_pstate = pstate;
}
return 1;
err:
dev_err(dev, "failed to set required performance state for power-domain %s: %d\n",
pd->name, ret);
genpd_remove_device(pd, dev);
return ret;
}
/**

12
drivers/opp/of.c
View File

@ -95,15 +95,7 @@ static struct dev_pm_opp *_find_opp_of_np(struct opp_table *opp_table,
static struct device_node *of_parse_required_opp(struct device_node *np,
int index)
{
struct device_node *required_np;
required_np = of_parse_phandle(np, "required-opps", index);
if (unlikely(!required_np)) {
pr_err("%s: Unable to parse required-opps: %pOF, index: %d\n",
__func__, np, index);
}
return required_np;
return of_parse_phandle(np, "required-opps", index);
}
/* The caller must call dev_pm_opp_put_opp_table() after the table is used */
@ -1328,7 +1320,7 @@ int of_get_required_opp_performance_state(struct device_node *np, int index)
required_np = of_parse_required_opp(np, index);
if (!required_np)
return -EINVAL;
return -ENODEV;
opp_table = _find_table_of_opp_np(required_np);
if (IS_ERR(opp_table)) {

1
include/linux/pm_domain.h
View File

@ -198,6 +198,7 @@ struct generic_pm_domain_data {
struct notifier_block *power_nb;
int cpu;
unsigned int performance_state;
unsigned int default_pstate;
unsigned int rpm_pstate;
ktime_t next_wakeup;
void *data;