diff options
Diffstat (limited to 'drivers/thunderbolt/switch.c')
| -rw-r--r-- | drivers/thunderbolt/switch.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 9756e6279dc9..b132439618da 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -599,6 +599,19 @@ static int tb_init_port(struct tb_port *port) } +/** + * tb_pci_port_enable() - Enable PCIe adapter port + * @port: PCIe port to enable + * @enable: Enable/disable the PCIe adapter + */ +int tb_pci_port_enable(struct tb_port *port, bool enable) +{ + u32 word = enable ? TB_PCI_EN : 0x0; + if (!port->cap_adap) + return -ENXIO; + return tb_port_write(port, &word, TB_CFG_PORT, port->cap_adap, 1); +} + /* switch utility functions */ static void tb_dump_switch(struct tb *tb, struct tb_regs_switch_header *sw) |