From 83efe2f157743feb3f5b6bbb1e34ee56ab3a6dad Mon Sep 17 00:00:00 2001
From: Ori Bernstein <ori@eigenstate.org>
Date: Sun, 18 Oct 2020 10:50:07 -0400
Subject: etheriwl: delay before crystal calibration

On my 6235 card, if we calibrate the crystal
immediately after disabling wimax, the the
firmware gets unhappy. A short nap before
sending the command prevents the command from
timing out.
---
 sys/src/9/pc/etheriwl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/src/9/pc/etheriwl.c b/sys/src/9/pc/etheriwl.c
index 93285850e..909558b54 100644
--- a/sys/src/9/pc/etheriwl.c
+++ b/sys/src/9/pc/etheriwl.c
@@ -2892,6 +2892,8 @@ postboot6000(Ctlr *ctlr)
 	if((err = cmd(ctlr, 90, c, 4+4*16)) != nil)
 		return err;
 
+	/* 6235 times out if we calibrate the crystal immediately */
+	tsleep(&up->sleep, return0, nil, 10);
 	if(ctlr->type != Type5150){
 		/* calibrate crystal */
 		memset(c, 0, sizeof(c));
-- 
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