diff options
author | Thierry Reding <treding@nvidia.com> | 2017-03-29 18:34:50 +0200 |
---|---|---|
committer | Thierry Reding <treding@nvidia.com> | 2017-06-13 15:15:08 +0200 |
commit | 408455245a48a1ecabd90133bae0baec3ec4cfb8 (patch) | |
tree | 81f8b53b6afde7256132df44f351ef04044a4a18 | |
parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
download | linux-408455245a48a1ecabd90133bae0baec3ec4cfb8.tar.gz |
PM / Domains: Allow overriding the ->xlate() callback
Allow generic power domain providers to override the ->xlate() callback
in case the default genpd_xlate_onecell() translation callback is not
good enough.
One potential use-case for this is to allow generic power domains to be
specified by an ID rather than an index.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r-- | drivers/base/power/domain.c | 8 | ||||
-rw-r--r-- | include/linux/pm_domain.h | 4 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index da49a8383dc3..d3f1d96f75e9 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1584,9 +1584,6 @@ EXPORT_SYMBOL_GPL(pm_genpd_remove); #ifdef CONFIG_PM_GENERIC_DOMAINS_OF -typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, - void *data); - /* * Device Tree based PM domain providers. * @@ -1742,6 +1739,9 @@ int of_genpd_add_provider_onecell(struct device_node *np, mutex_lock(&gpd_list_lock); + if (!data->xlate) + data->xlate = genpd_xlate_onecell; + for (i = 0; i < data->num_domains; i++) { if (!data->domains[i]) continue; @@ -1752,7 +1752,7 @@ int of_genpd_add_provider_onecell(struct device_node *np, data->domains[i]->has_provider = true; } - ret = genpd_add_provider(np, genpd_xlate_onecell, data); + ret = genpd_add_provider(np, data->xlate, data); if (ret < 0) goto error; diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index b7803a251044..41004d97cefa 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -206,9 +206,13 @@ static inline void pm_genpd_syscore_poweron(struct device *dev) {} /* OF PM domain providers */ struct of_device_id; +typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, + void *data); + struct genpd_onecell_data { struct generic_pm_domain **domains; unsigned int num_domains; + genpd_xlate_t xlate; }; #ifdef CONFIG_PM_GENERIC_DOMAINS_OF |