Commit fa47748c authored by Erwan Gouriou's avatar Erwan Gouriou Committed by Kumar Gala
Browse files

scripts: extract_dts_inculdes: treat 'parent: bus' attribute 



When node has 'bus' as 'parent' attribute, change base label to
include parent address in label prefix.

Besides, generates a "_BUS_NAME" define which equals parent label.

Signed-Off-by: default avatarErwan Gouriou <erwan.gouriou@linaro.org>
parent 65747e87

scripts/dts/extract_dts_includes.py

+63 −5
Original line number Diff line number Diff line
@@ -199,6 +199,19 @@ def find_parent_irq_node(node_address): 


    return reduced[phandles[interrupt_parent]]



def find_parent_prop(node_address, prop):

    parent_address = ''



    for comp in node_address.split('/')[1:-1]:

        parent_address += '/' + comp



    if prop in reduced[parent_address]['props']:

        parent_prop = reduced[parent_address]['props'].get(prop)

    else:

        raise Exception("Parent of node " + node_address +

                        " has no " + prop + " property")



    return parent_prop



def extract_interrupts(node_address, yaml, y_key, names, defs, def_label):

    node = reduced[node_address]
@@ -430,6 +443,10 @@ def extract_single(node_address, yaml, prop, key, prefix, defs, def_label): 
    else:

        k = convert_string_to_label(key).upper()

        label = def_label + '_' + k



        if prop == 'parent-label':

            prop = find_parent_prop(node_address, 'label')



        if isinstance(prop, str):

            prop = "\"" + prop + "\""

        prop_def[label] = prop
@@ -460,18 +477,59 @@ def extract_string_prop(node_address, yaml, key, label, defs): 
    return





def extract_property(node_compat, yaml, node_address, y_key, y_val, names,

                     prefix, defs, label_override):

def get_node_label(node_compat, node_address):



    if 'base_label' in yaml[node_compat]:

        def_label = yaml[node_compat].get('base_label')

    else:

    def_label = convert_string_to_label(node_compat.upper())

    if '@' in node_address:

        def_label += '_' + node_address.split('@')[-1].upper()

    else:

        def_label += convert_string_to_label(node_address.upper())



    return def_label



def extract_property(node_compat, yaml, node_address, y_key, y_val, names,

                     prefix, defs, label_override):



    if 'base_label' in yaml[node_compat]:

        def_label = yaml[node_compat].get('base_label')

    else:

        def_label = get_node_label(node_compat, node_address)



    if 'parent' in yaml[node_compat]:

        if 'bus' in yaml[node_compat]['parent']:

            # get parent label

            parent_address = ''

            for comp in node_address.split('/')[1:-1]:

                parent_address += '/' + comp



            #check parent has matching child bus value

            try:

                parent_yaml = \

                    yaml[reduced[parent_address]['props']['compatible']]

                parent_bus = parent_yaml['child']['bus']

            except (KeyError, TypeError) as e:

                raise Exception(str(node_address) + " defines parent " +

                        str(parent_address) + " as bus master but " +

                        str(parent_address) + " not configured as bus master " +

                        "in yaml description")



            if parent_bus != yaml[node_compat]['parent']['bus']:

                bus_value = yaml[node_compat]['parent']['bus']

                raise Exception(str(node_address) + " defines parent " +

                        str(parent_address) + " as " + bus_value +

                        " bus master but " + str(parent_address) +

                        " configured as " + str(parent_bus) +

                        " bus master")



            # Use parent label to generate label

            parent_label = get_node_label(

                find_parent_prop(node_address,'compatible') , parent_address)

            def_label = parent_label + '_' + def_label



            # Generate bus-name define

            extract_single(node_address, yaml, 'parent-label',

                           'bus-name', prefix, defs, def_label)



    if label_override is not None:

        def_label += '_' + label_override

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