From ec872304a2ac5c1b5025b30d52f08b91c08c0e2d Mon Sep 17 00:00:00 2001
From: Romain Pelletant <romainp@kickmaker.net>
Date: Thu, 2 Jan 2025 22:59:17 +0100
Subject: [PATCH] drivers: pinctrl: add low power support

- Add low power pinctrl configuration support for gecko platform
---
 drivers/pinctrl/pinctrl_gecko.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/pinctrl/pinctrl_gecko.c b/drivers/pinctrl/pinctrl_gecko.c
index db8f5523c015636..0f3805b1b3fd8bd 100644
--- a/drivers/pinctrl/pinctrl_gecko.c
+++ b/drivers/pinctrl/pinctrl_gecko.c
@@ -33,6 +33,15 @@ int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintp
 		pin_config.pin = GECKO_GET_PIN(pins[i]);
 		loc = GECKO_GET_LOC(pins[i]);
 
+		/* Force input for low power mode */
+		if (GECKO_GET_LP(pins[i]) == GECKO_LP_ENABLE) {
+			pin_config.mode = gpioModeInput;
+			pin_config.out = 0;
+			GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
+					pin_config.out);
+			continue;
+		}
+
 		switch (GECKO_GET_FUN(pins[i])) {
 #ifdef CONFIG_UART_GECKO
 		case GECKO_FUN_UART_RX: