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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-01 14:47:09 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-09 14:28:57 +0300 |
| commit | 6c3b746fd536b7612b23e5c2041365014b85082e (patch) | |
| tree | 3b5d544a1c92f77006077e5a063f0446f40c8137 /include/linux | |
| parent | 18a3a510ecfd0e508e8e41160dea0493cdfa297c (diff) | |
| download | linux-6c3b746fd536b7612b23e5c2041365014b85082e.tar.xz | |
pmdomain: core: Export a common ->sync_state() helper for genpd providers
In some cases the typical platform driver that act as genpd provider, may
need its own ->sync_state() callback to manage various things. In this
regards, the provider most likely wants to allow its corresponding genpds
to be powered-off.
For this reason, let's introduce a new genpd helper function,
of_genpd_sync_state() that helps genpd provider drivers to achieve this.
Suggested-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-8-ulf.hansson@linaro.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pm_domain.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 0b18160901a2..3578196e6626 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -431,6 +431,7 @@ int of_genpd_remove_subdomain(const struct of_phandle_args *parent_spec, struct generic_pm_domain *of_genpd_remove_last(struct device_node *np); int of_genpd_parse_idle_states(struct device_node *dn, struct genpd_power_state **states, int *n); +void of_genpd_sync_state(struct device_node *np); int genpd_dev_pm_attach(struct device *dev); struct device *genpd_dev_pm_attach_by_id(struct device *dev, @@ -476,6 +477,8 @@ static inline int of_genpd_parse_idle_states(struct device_node *dn, return -ENODEV; } +static inline void of_genpd_sync_state(struct device_node *np) {} + static inline int genpd_dev_pm_attach(struct device *dev) { return 0; |