diff options
| author | Frank Li <Frank.Li@nxp.com> | 2026-05-05 02:54:35 +0300 |
|---|---|---|
| committer | Linus Walleij <linusw@kernel.org> | 2026-05-05 15:48:12 +0300 |
| commit | 05e58da46d8e8f8b29bc9b47053bb0637891c06f (patch) | |
| tree | 3f5fd7e888ecef6d33bfa191226031908defcf5f /include/linux | |
| parent | 254f49634ee16a731174d2ae34bc50bd5f45e731 (diff) | |
| download | linux-05e58da46d8e8f8b29bc9b47053bb0637891c06f.tar.xz | |
mux: add devm_mux_state_get_from_np() to get mux from child node
Add new API devm_mux_state_get_from_np() to retrieve a mux control from
a specified child device node.
Make devm_mux_state_get() call devm_mux_state_get_from_np() with a NULL
node parameter, which defaults to using the device's own of_node.
Support the following DT schema:
pinctrl@0 {
uart-func {
mux-state = <&mux_chip 0>;
};
spi-func {
mux-state = <&mux_chip 1>;
};
};
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mux/consumer.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/mux/consumer.h b/include/linux/mux/consumer.h index a961861a503b..449e38e6e2c5 100644 --- a/include/linux/mux/consumer.h +++ b/include/linux/mux/consumer.h @@ -60,7 +60,10 @@ struct mux_control *mux_control_get_optional(struct device *dev, const char *mux void mux_control_put(struct mux_control *mux); struct mux_control *devm_mux_control_get(struct device *dev, const char *mux_name); -struct mux_state *devm_mux_state_get(struct device *dev, const char *mux_name); + +struct mux_state * +devm_mux_state_get_from_np(struct device *dev, const char *mux_name, struct device_node *np); + struct mux_state *devm_mux_state_get_optional(struct device *dev, const char *mux_name); struct mux_state *devm_mux_state_get_selected(struct device *dev, const char *mux_name); struct mux_state *devm_mux_state_get_optional_selected(struct device *dev, const char *mux_name); @@ -161,4 +164,7 @@ static inline struct mux_state *devm_mux_state_get_optional_selected(struct devi #endif /* CONFIG_MULTIPLEXER */ +#define devm_mux_state_get(dev, mux_name) \ + devm_mux_state_get_from_np(dev, mux_name, NULL) + #endif /* _LINUX_MUX_CONSUMER_H */ |