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thunderbolt: Rework capability handling

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Organization of the capabilities in switches and ports is not so random
after all. Rework the capability handling functionality so that it
follows how capabilities are organized and provide two new functions
(tb_switch_find_vse_cap() and tb_port_find_cap()) which can be used to
extract capabilities for ports and switches. Then convert the current
users over these.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Michael Jamet <michael.jamet@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mika Westerberg
2017-06-06 15:24:58 +03:00
committed by Greg Kroah-Hartman
parent 046bee1f9a
commit da2da04b8d
6 changed files with 145 additions and 105 deletions
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6
drivers/thunderbolt/switch.c
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@@ -192,7 +192,7 @@ static int tb_init_port(struct tb_port *port)
/* Port 0 is the switch itself and has no PHY. */
if (port->config.type == TB_TYPE_PORT && port->port != 0) {
cap = tb_find_cap(port, TB_CFG_PORT, TB_CAP_PHY);
cap = tb_port_find_cap(port, TB_PORT_CAP_PHY);
if (cap > 0)
port->cap_phy = cap;
@@ -394,9 +394,9 @@ struct tb_switch *tb_switch_alloc(struct tb *tb, u64 route)
sw->ports[i].port = i;
}
cap = tb_find_cap(&sw->ports[0], TB_CFG_SWITCH, TB_CAP_PLUG_EVENTS);
cap = tb_switch_find_vse_cap(sw, TB_VSE_CAP_PLUG_EVENTS);
if (cap < 0) {
tb_sw_warn(sw, "cannot find TB_CAP_PLUG_EVENTS aborting\n");
tb_sw_warn(sw, "cannot find TB_VSE_CAP_PLUG_EVENTS aborting\n");
goto err;
}
sw->cap_plug_events = cap;