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thunderbolt: Align USB4 router wakes configuration with the CM guide

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The USB4 Configuration Manager guide suggests that the USB4 port wakes
are configured in a certain way, like that when the port is configured
the wake-on-connect should not be set and so forth, so align the driver
with this.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2021-01-14 16:41:31 +02:00
parent 6026b703e8
commit 3caf88871c
1 changed files with 11 additions and 5 deletions
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16
drivers/thunderbolt/usb4.c
View file

@ -399,12 +399,18 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags)
val &= ~(PORT_CS_19_WOC | PORT_CS_19_WOD | PORT_CS_19_WOU4);
if (flags & TB_WAKE_ON_CONNECT)
val |= PORT_CS_19_WOC;
if (flags & TB_WAKE_ON_DISCONNECT)
val |= PORT_CS_19_WOD;
if (flags & TB_WAKE_ON_USB4)
if (tb_is_upstream_port(port)) {
val |= PORT_CS_19_WOU4;
} else {
bool configured = val & PORT_CS_19_PC;
if ((flags & TB_WAKE_ON_CONNECT) && !configured)
val |= PORT_CS_19_WOC;
if ((flags & TB_WAKE_ON_DISCONNECT) && configured)
val |= PORT_CS_19_WOD;
if ((flags & TB_WAKE_ON_USB4) && configured)
val |= PORT_CS_19_WOU4;
}
ret = tb_port_write(port, &val, TB_CFG_PORT,
port->cap_usb4 + PORT_CS_19, 1);