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Commit fd223e2e authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller
Browse files

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: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5b32fe07

net/dsa/dsa2.c

+34 −3
Original line number Diff line number Diff line
@@ -590,9 +590,17 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst) 
	return 0;

}



static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)

{

	dp->dn = dn;



	return 0;

}



static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds)

{

	struct device_node *ports, *port;

	struct dsa_port *dp;

	u32 reg;

	int err;
@@ -610,22 +618,45 @@ static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds) 
		if (reg >= ds->num_ports)

			return -EINVAL;



		ds->ports[reg].dn = port;

		dp = &ds->ports[reg];



		err = dsa_port_parse_of(dp, port);

		if (err)

			return err;

	}



	return 0;

}



static int dsa_port_parse(struct dsa_port *dp, const char *name,

			  struct device *dev)

{

	dp->name = name;



	return 0;

}



static int dsa_parse_ports(struct dsa_chip_data *cd, struct dsa_switch *ds)

{

	bool valid_name_found = false;

	struct dsa_port *dp;

	struct device *dev;

	const char *name;

	unsigned int i;

	int err;



	for (i = 0; i < DSA_MAX_PORTS; i++) {

		if (!cd->port_names[i])

		name = cd->port_names[i];

		dev = cd->netdev[i];

		dp = &ds->ports[i];



		if (!name)

			continue;



		ds->ports[i].name = cd->port_names[i];

		err = dsa_port_parse(dp, name, dev);

		if (err)

			return err;



		valid_name_found = true;

	}