On 15.03.22 15:16, Ahmad Fatoum wrote: > Hello Andrej, > > On 15.03.22 14:39, Andrej Picej wrote: >> Function first goes through all the aliases which have the given stem. >> It then ensures that all the devices hiding under these aliases are >> probed. >> >> Signed-off-by: Andrej Picej <andrej.picej@xxxxxxxxx> >> --- >> drivers/of/base.c | 28 ++++++++++++++++++++++++++++ >> include/of.h | 6 ++++++ >> 2 files changed, 34 insertions(+) >> >> diff --git a/drivers/of/base.c b/drivers/of/base.c >> index 80465d6d50..055dba97ab 100644 >> --- a/drivers/of/base.c >> +++ b/drivers/of/base.c >> @@ -274,6 +274,34 @@ int of_alias_get_id_from(struct device_node *root, struct device_node *np, >> } >> EXPORT_SYMBOL_GPL(of_alias_get_id_from); >> >> +/** >> + * of_device_ensured_probed_by_alias_stem - Ensure all devices with alias base name >> + * are probed >> + * @stem: Alias stem of the given device_node >> + * >> + * The function ensures all devices with the given alias stem are probed. >> + * >> + * Returns 0 on success or error code. >> + */ >> +int of_device_ensured_probed_by_alias_stem(const char *stem) >> +{ >> + struct alias_prop *app; >> + int id = -ENODEV; >> + int ret; > > Can you early exit here if (!deep_probe_is_supported())? > > This saves non-deep probe users the hassle of needless iteration > and string comparisons. > >> + >> + list_for_each_entry(app, &aliases_lookup, link) { Corner case: aliases in DT are not sorted, so &{/aliases} { gpio1 = &pmic_gpio; gpio0 = &gpio1; }; may result in pmic_gpio being probed first.. Could be resolved by sorting aliases on insertion though. hmm.. >> + if (of_node_cmp(app->stem, stem) != 0) >> + continue; >> + >> + ret = of_device_ensure_probed(app->np); >> + if (ret) >> + return ret; >> + } >> + >> + return 0; >> +} >> +EXPORT_SYMBOL_GPL(of_device_ensured_probed_by_alias_stem); >> + >> const char *of_alias_get(struct device_node *np) >> { >> struct alias_prop *app; >> diff --git a/include/of.h b/include/of.h >> index 216d0ee763..95817c58a4 100644 >> --- a/include/of.h >> +++ b/include/of.h >> @@ -261,6 +261,7 @@ extern void of_alias_scan(void); >> extern int of_alias_get_id(struct device_node *np, const char *stem); >> extern int of_alias_get_id_from(struct device_node *root, struct device_node *np, >> const char *stem); >> +extern int of_device_ensured_probed_by_alias_stem(const char *stem); >> extern const char *of_alias_get(struct device_node *np); >> extern int of_modalias_node(struct device_node *node, char *modalias, int len); >> >> @@ -750,6 +751,11 @@ static inline int of_alias_get_id_from(struct device_node *root, struct device_n >> return -ENOSYS; >> } >> >> +static int of_device_ensured_probed_by_aliases(const char *stem) >> +{ >> + return -ENOSYS; >> +} >> + >> static inline const char *of_alias_get(struct device_node *np) >> { >> return NULL; > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox