the response from p:commandLink is not refreshing the input text field where as the output text field with the same value is getting refreshed.
here is my code.
<p:commandLink value="#{customerProfile.customerName}" style="font-size:13px !important"
    styleClass="clickcolumn" title="select" immediate="true" 
    update="content-area:dataEntryForm:custName"
    action="#{customerProfileBean.enableCustomerProfile}">
        <f:param name="cust_id" value="#{rustomerProfile.rustomerId}" />
</p:commandLink>
and the input text field:
<h:inputText value="#{customerProfileFormBean.customer.customerName}" />
<h:outputText value="#{customerProfileFormBean.customer.customerName}" />