Nitrous: Add delay while doing BTBCM power via rfkill

Cherry-picked from hci_bcm driver to wait a full 10 ms after the
regulators are enabled to account for signal rising times.

Bug: 172976543
Bug: 172975224
Signed-off-by: Cheney Ni <cheneyni@google.com>
Change-Id: I6736b02ae622fb618cffb52e25ace50ec6c34940

1 files changed, 3 insertions, 0 deletions

diff --git a/nitrous.c b/nitrous.c
index 0c78436..71acd37 100644
--- a/nitrous.c
+++ b/nitrous.c
@@ -377,6 +377,9 @@ static int nitrous_rfkill_set_power(void *data, bool blocked)
 	}
 	lpm->rfkill_blocked = blocked;
 
+	/* wait for device to power cycle and come out of reset */
+	usleep_range(10000, 20000);
+
 	return 0;
 }