git: ce881170088c - main - atkbd: Disable periodic polling by default.

The branch main has been updated by mav:

URL: https://cgit.FreeBSD.org/src/commit/?id=ce881170088c4c98c036fe561f8ee8413c2e2585

commit ce881170088c4c98c036fe561f8ee8413c2e2585
Author:     Alexander Motin <mav@FreeBSD.org>
AuthorDate: 2022-01-05 20:00:36 +0000
Commit:     Alexander Motin <mav@FreeBSD.org>
CommitDate: 2022-01-05 20:12:58 +0000

    atkbd: Disable periodic polling by default.
    
    It is one of the few remaining Giant-locked callouts.  It would be
    good to remove it, not mentioning that polling itself is not good.
    
    If this cause keyboard/mouse freezes on some hardware, please set
    loader tunable hw.atkbd.hz=1 as workaround and report the issue.
    
    Submitted by:   imp, jhb
---
 sys/dev/atkbdc/atkbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/atkbdc/atkbd.c b/sys/dev/atkbdc/atkbd.c
index cee1207df973..e87e5591150c 100644
--- a/sys/dev/atkbdc/atkbd.c
+++ b/sys/dev/atkbdc/atkbd.c
@@ -77,7 +77,7 @@ typedef struct atkbd_state {
 static SYSCTL_NODE(_hw, OID_AUTO, atkbd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
     "AT keyboard");
 
-static int atkbdhz = 1;
+static int atkbdhz = 0;
 SYSCTL_INT(_hw_atkbd, OID_AUTO, hz, CTLFLAG_RWTUN, &atkbdhz, 0,
     "Polling frequency (in hz)");