public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-18 22:14:16 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

thunderbolt: Increase timeout of DP OUT adapter handshake

Browse source 
Sometimes the current timeout is not enough so increase it to 1500 ms
and while there make the loop use ktime instead.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2022-06-19 18:02:48 +03:00
parent e70a8f3698
commit fe1a1cf7c9
1 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/thunderbolt/tunnel.c
View file

@ -339,9 +339,10 @@ static bool tb_dp_is_usb4(const struct tb_switch *sw)
return tb_switch_is_usb4(sw) || tb_switch_is_titan_ridge(sw);
}
static int tb_dp_cm_handshake(struct tb_port *in, struct tb_port *out)
static int tb_dp_cm_handshake(struct tb_port *in, struct tb_port *out,
int timeout_msec)
{
int timeout = 10;
ktime_t timeout = ktime_add_ms(ktime_get(), timeout_msec);
u32 val;
int ret;
@ -368,8 +369,8 @@ static int tb_dp_cm_handshake(struct tb_port *in, struct tb_port *out)
return ret;
if (!(val & DP_STATUS_CTRL_CMHS))
return 0;
usleep_range(10, 100);
} while (timeout--);
usleep_range(100, 150);
} while (ktime_before(ktime_get(), timeout));
return -ETIMEDOUT;
}
@ -519,7 +520,7 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel)
* Perform connection manager handshake between IN and OUT ports
* before capabilities exchange can take place.
*/
ret = tb_dp_cm_handshake(in, out);
ret = tb_dp_cm_handshake(in, out, 1500);
if (ret)
return ret;