Return-Path: Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: [PATCH v2] Bluetooth: btusb: Release RF resource on BT shutdown From: Marcel Holtmann In-Reply-To: <1533280400-11760-1-git-send-email-amit.k.bag@intel.com> Date: Fri, 3 Aug 2018 11:19:24 +0200 Cc: linux-bluetooth@vger.kernel.org, chethan.tumkur.narayan@intel.com, ravishankar.srivatsa@intel.com Message-Id: References: <1533280400-11760-1-git-send-email-amit.k.bag@intel.com> To: Amit K Bag Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi Amit, > Issue description: Intel 7265 shares the same RF with Wifi and BT. > In the shutdown scenario turn off BT, followed by turn WiFi off > and on causing error in RF calibration in WiFi Module > > Solution: before shutdown BT ensure any RF activity to clear by > HCI reset command. > > Reference Logs: > ERR kernel: [ 386.193284] iwlwifi 0000:01:00.0: Failed to run INIT calibrations: -5 > ERR kernel: [ 386.193298] iwlwifi 0000:01:00.0: Failed to run INIT ucode: -5 > ERR kernel: [ 386.193309] iwlwifi 0000:01:00.0: Failed to start RT ucode: -5 > > Signed-off-by: Amit K Bag > Singed-off-by: Chethan T N > --- > drivers/bluetooth/btusb.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel