include: drivers: gpio_emul: add gpio_dt_spec helpers

Add gpio_dt_spec based helpers for easier access to:
* gpio_emul_input_set
* gpio_emul_output_get
* gpio_emul_flags_get

Signed-off-by: Maximilian Werner <[email protected]>

Author: mwerner96

include/zephyr/drivers/gpio/gpio_emul.h

@@ -73,6 +73,23 @@ static inline int gpio_emul_input_set(const struct device *port, gpio_pin_t pin,
 	return gpio_emul_input_set_masked(port, BIT(pin), value ? BIT(pin) : 0);
 }
 
+/**
+ * @brief Modify the value of one emulated GPIO input pin from a @p gpio_dt_spec
+ *
+ * This is equivalent to:
+ *
+ *     gpio_emul_input_set(spec->port, spec->pin, value);
+ *
+ * @param spec The emulated GPIO specification from devicetree
+ * @param value New values to assign to the pin
+ *
+ * @return a value from gpio_emul_input_set()
+ */
+static inline int gpio_emul_input_set_dt(const struct gpio_dt_spec *spec, int value)
+{
+	return gpio_emul_input_set(spec->port, spec->pin, value);
+}
+
 /**
  * @brief Read the value of one or more emulated GPIO output @p pins
  *
@@ -108,6 +125,22 @@ static inline int gpio_emul_output_get(const struct device *port, gpio_pin_t pin
 	return ret;
 }
 
+/**
+ * @brief Read the value of one emulated GPIO output pin from a @p gpio_dt_spec
+ *
+ * This is equivalent to:
+ *
+ *     gpio_emul_output_get(spec->port, spec->pin);
+ *
+ * @param spec The emulated GPIO specification from devicetree
+ *
+ * @return a value from gpio_emul_output_get()
+ */
+static inline int gpio_emul_output_get_dt(const struct gpio_dt_spec *spec)
+{
+	return gpio_emul_output_get(spec->port, spec->pin);
+}
+
 /**
  * @brief Get @p flags for a given emulated GPIO @p pin
  *
@@ -122,6 +155,25 @@ static inline int gpio_emul_output_get(const struct device *port, gpio_pin_t pin
  */
 int gpio_emul_flags_get(const struct device *port, gpio_pin_t pin, gpio_flags_t *flags);
 
+/**
+ * @brief Get @p flags for a given emulated GPIO pin from a @p gpio_dt_spec
+ *
+ * This is equivalent to:
+ *
+ *     gpio_emul_flags_get(spec->port, spec->pin, flags);
+ *
+ * For more information on available flags, see @ref gpio_interface.
+ *
+ * @param spec The emulated GPIO specification from devicetree
+ * @param flags a pointer to where the flags for the pin will be stored
+ *
+ * @return a value from gpio_emul_flags_get()
+ */
+static inline int gpio_emul_flags_get_dt(const struct gpio_dt_spec *spec, gpio_flags_t *flags)
+{
+	return gpio_emul_flags_get(spec->port, spec->pin, flags);
+}
+
 /**
  * @}
  */