drivers: flash: stm32_xspi: Remove hard-coded XSPI2 dependency

Check the used XSPIx peripheral before calling the corresponding function
instead of hard-coded calling the LL_PWR_EnableXSPIM2() and
LL_SBS_EnableXSPI2SpeedOptim() during flash_stm32_xspi_init(...).

Signed-off-by: Thomas Decker <[email protected]>

Author: TD-JBL

drivers/flash/flash_stm32_xspi.c

@@ -2118,9 +2118,14 @@ static int flash_stm32_xspi_init(const struct device *dev)
 		return -ENOTSUP;
 	}
 #if defined(CONFIG_SOC_SERIES_STM32H7RSX)
-	LL_PWR_EnableXSPIM2();
 	__HAL_RCC_SBS_CLK_ENABLE();
-	LL_SBS_EnableXSPI2SpeedOptim();
+	if (dev_data->hxspi.Instance == XSPI1) {
+		LL_PWR_EnableXSPIM1();
+		LL_SBS_EnableXSPI1SpeedOptim();
+	} else if (dev_data->hxspi.Instance == XSPI2) {
+		LL_PWR_EnableXSPIM2();
+		LL_SBS_EnableXSPI2SpeedOptim();
+	}
 #endif /* CONFIG_SOC_SERIES_STM32H7RSX */
 
 	/* Signals configuration */