MCP251XFD_REG_CON_MODE_SLEEP
case MCP251XFD_REG_CON_MODE_SLEEP:
if (mode_req == MCP251XFD_REG_CON_MODE_SLEEP || nowait)
return mcp251xfd_chip_set_mode(priv, MCP251XFD_REG_CON_MODE_SLEEP);