net: dsa: add port parse functions
Add symmetrical DSA port parsing functions for pdata and device tree, used to parse and validate a given port node or platform data. They don't do much for the moment but will be extended later on to assign a port type and get device references. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -590,9 +590,17 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst)
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return 0;
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return 0;
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}
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}
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static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
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{
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dp->dn = dn;
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return 0;
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}
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static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds)
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static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds)
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{
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{
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struct device_node *ports, *port;
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struct device_node *ports, *port;
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struct dsa_port *dp;
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u32 reg;
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u32 reg;
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int err;
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int err;
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@ -610,22 +618,45 @@ static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds)
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if (reg >= ds->num_ports)
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if (reg >= ds->num_ports)
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return -EINVAL;
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return -EINVAL;
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ds->ports[reg].dn = port;
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dp = &ds->ports[reg];
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err = dsa_port_parse_of(dp, port);
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if (err)
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return err;
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}
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}
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return 0;
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return 0;
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}
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}
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static int dsa_port_parse(struct dsa_port *dp, const char *name,
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struct device *dev)
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{
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dp->name = name;
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return 0;
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}
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static int dsa_parse_ports(struct dsa_chip_data *cd, struct dsa_switch *ds)
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static int dsa_parse_ports(struct dsa_chip_data *cd, struct dsa_switch *ds)
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{
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{
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bool valid_name_found = false;
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bool valid_name_found = false;
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struct dsa_port *dp;
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struct device *dev;
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const char *name;
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unsigned int i;
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unsigned int i;
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int err;
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for (i = 0; i < DSA_MAX_PORTS; i++) {
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for (i = 0; i < DSA_MAX_PORTS; i++) {
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if (!cd->port_names[i])
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name = cd->port_names[i];
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dev = cd->netdev[i];
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dp = &ds->ports[i];
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if (!name)
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continue;
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continue;
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ds->ports[i].name = cd->port_names[i];
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err = dsa_port_parse(dp, name, dev);
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if (err)
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return err;
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valid_name_found = true;
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valid_name_found = true;
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}
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}
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