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-rw-r--r--include/dm/pinctrl.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h
index 5cd4503..0eb4b92 100644
--- a/include/dm/pinctrl.h
+++ b/include/dm/pinctrl.h
@@ -114,6 +114,22 @@ struct pinctrl_ops {
* @return peripheral ID of @periph, or -ENOENT on error
*/
int (*get_periph_id)(struct udevice *dev, struct udevice *periph);
+
+ /**
+ * get_gpio_mux() - get the mux value for a particular GPIO
+ *
+ * This allows the raw mux value for a GPIO to be obtained. It is
+ * useful for displaying the function being used by that GPIO, such
+ * as with the 'gpio' command. This function is internal to the GPIO
+ * subsystem and should not be used by generic code. Typically it is
+ * used by a GPIO driver with knowledge of the SoC pinctrl setup.
+ *
+ * @dev: Pinctrl device to use
+ * @banknum: GPIO bank number
+ * @index: GPIO index within the bank
+ * @return mux value (SoC-specific, e.g. 0 for input, 1 for output)
+ */
+ int (*get_gpio_mux)(struct udevice *dev, int banknum, int index);
};
#define pinctrl_get_ops(dev) ((struct pinctrl_ops *)(dev)->driver->ops)
@@ -297,4 +313,20 @@ int pinctrl_get_periph_id(struct udevice *dev, struct udevice *periph);
*/
int pinctrl_decode_pin_config(const void *blob, int node);
+/**
+ * pinctrl_get_gpio_mux() - get the mux value for a particular GPIO
+ *
+ * This allows the raw mux value for a GPIO to be obtained. It is
+ * useful for displaying the function being used by that GPIO, such
+ * as with the 'gpio' command. This function is internal to the GPIO
+ * subsystem and should not be used by generic code. Typically it is
+ * used by a GPIO driver with knowledge of the SoC pinctrl setup.
+ *
+ * @dev: Pinctrl device to use
+ * @banknum: GPIO bank number
+ * @index: GPIO index within the bank
+ * @return mux value (SoC-specific, e.g. 0 for input, 1 for output)
+*/
+int pinctrl_get_gpio_mux(struct udevice *dev, int banknum, int index);
+
#endif /* __PINCTRL_H */