soc: st: stm32: wkup_pins: break after configuring I/O retention on pin

mathieuchopstm · kartben · commit 7defeda8bd60 · 2025-11-27T16:02:47.000+01:00
After we found the target GPIO port and configured I/O retention on target
wake-up pin, break from the search loop.

Applies only to STM32WBA series.

Signed-off-by: Mathieu Choplain &lt;mathieu.choplain-ext@st.com&gt;
diff --git a/soc/st/stm32/common/stm32_wkup_pins.c b/soc/st/stm32/common/stm32_wkup_pins.c
@@ -346,6 +346,7 @@ int stm32_pwr_wkup_pin_cfg_gpio(const struct gpio_dt_spec *gpio)
 			volatile uint32_t *ioretenr_x = (&PWR->IORETENRA) + 2 * i;
 
 			stm32_reg_set_bits(ioretenr_x, 1U << gpio->pin);
+			break;
 		}
 	}
 #endif /* CONFIG_SOC_SERIES_STM32WBAX */

Original file line number	Diff line number	Diff line change
`@@ -346,6 +346,7 @@ int stm32_pwr_wkup_pin_cfg_gpio(const struct gpio_dt_spec *gpio)`
`346`	`346`	`volatile uint32_t ioretenr_x = (&PWR->IORETENRA) + 2 i;`
`347`	`347`
`348`	`348`	`stm32_reg_set_bits(ioretenr_x, 1U << gpio->pin);`
	`349`	`+ break;`
`349`	`350`	`}`
`350`	`351`	`}`
`351`	`352`	`#endif /* CONFIG_SOC_SERIES_STM32WBAX */`