couldn't get 32L4 running with crystal less mode

hw/bsp/stm32l476disco/stm32l476disco.c

@@ -28,6 +28,7 @@
 
 #include "stm32l4xx.h"
 #include "stm32l4xx_hal_conf.h"
+#include "stm32l4xx_hal.h"
 
 #define LED_PORT              GPIOB
 #define LED_PIN               GPIO_PIN_2
@@ -117,8 +118,6 @@ void board_init(void)
 
   SystemClock_Config();
 
-  HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_MSI, RCC_MCODIV_1);//RCC_MCO1SOURCE_SYSCLK
-
   /* Enable Power Clock*/
   __HAL_RCC_PWR_CLK_ENABLE();
 
@@ -165,20 +164,12 @@ void board_init(void)
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
-  /* This for ID line */
-  GPIO_InitStruct.Pin = GPIO_PIN_12;
-  GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
-  GPIO_InitStruct.Pull = GPIO_PULLUP;
-  GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
-  GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
-  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
   /* Enable USB FS Clock */
   __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
 }
 
 //--------------------------------------------------------------------+
-// Board porting API
+// board porting API
 //--------------------------------------------------------------------+
 
 void board_led_write(bool state)

src/device/dcd.h

@@ -42,7 +42,7 @@ typedef enum
   DCD_EVENT_BUS_RESET = 1,
   DCD_EVENT_UNPLUGGED,
   DCD_EVENT_SOF,
-  DCD_EVENT_SUSPEND,
+  DCD_EVENT_SUSPEND, // TODO LPM Sleep L1 support
   DCD_EVENT_RESUME,
 
   DCD_EVENT_SETUP_RECEIVED,