drivers: pinmux: stm32: remove pre-DT API

Remove APIs used in the pre-DT era. In case manual access is required,
`stm32_dt_pinctrl_configure` can still be used as a shortcut with data
initialized in the expected format.

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

drivers/pinmux/pinmux_stm32.c

@@ -428,42 +428,3 @@ int stm32_dt_pinctrl_remap(const struct soc_gpio_pinctrl *pinctrl,
 	return 0;
 }
 #endif /* DT_HAS_COMPAT_STATUS_OKAY(st_stm32f1_pinctrl) */
-
-
-/**
- * @brief pin setup
- *
- * @param pin  STM32PIN() encoded pin ID
- * @param func SoC specific function assignment
- * @param clk  optional clock device
- *
- * @return 0 on success, error otherwise
- */
-int z_pinmux_stm32_set(uint32_t pin, uint32_t func)
-{
-	const struct device *port_device = gpio_ports[STM32_PORT(pin)];
-
-	/* make sure to enable port clock first */
-	if (gpio_stm32_clock_request(port_device, true)) {
-		return -EIO;
-	}
-
-	return stm32_pin_configure(pin, func, func & STM32_AFR_MASK);
-}
-
-/**
- * @brief setup pins according to their assignments
- *
- * @param pinconf  board pin configuration array
- * @param pins     array size
- */
-void stm32_setup_pins(const struct pin_config *pinconf,
-		      size_t pins)
-{
-	int i;
-
-	for (i = 0; i < pins; i++) {
-		z_pinmux_stm32_set(pinconf[i].pin_num,
-				  pinconf[i].mode);
-	}
-}

drivers/pinmux/pinmux_stm32.h

@@ -23,11 +23,6 @@
 extern "C" {
 #endif
 
-struct pin_config {
-	uint8_t pin_num;
-	uint32_t mode;
-};
-
 /**
  * @brief structure to convey pinctrl information for stm32 soc
  * value
@@ -86,31 +81,6 @@ struct soc_gpio_pinctrl {
 #define STM32_PIN(__pin) \
 	((__pin) & 0xf)
 
-/**
- * @brief helper for configuration of IO pin
- *
- * @param pin IO pin, STM32PIN() encoded
- * @param func IO function encoded
- * @param clk clock control device, for enabling/disabling clock gate
- * for the port
- */
-int z_pinmux_stm32_set(uint32_t pin, uint32_t func);
-
-/**
- * @brief helper for obtaining pin configuration for the board
- *
- * @param[out] pins  set to the number of pins in the array
- *
- * Obtain pin assignment/configuration for current board. This call
- * needs to be implemented at the board integration level. After
- * restart all pins are already configured as GPIO and can be skipped
- * in the configuration array. Pin numbers in @pin_num field are
- * STM32PIN() encoded.
- *
- */
-void stm32_setup_pins(const struct pin_config *pinconf,
-		      size_t pins);
-
 /**
  * @brief helper for converting dt stm32 pinctrl format to existing pin config
  *        format