From patchwork Tue Sep 1 14:24:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Venkata Lakshmi Narayana Gubba X-Patchwork-Id: 11748359 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4421A138A for ; Tue, 1 Sep 2020 14:26:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 33675206CD for ; Tue, 1 Sep 2020 14:26:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728060AbgIAO0q (ORCPT ); Tue, 1 Sep 2020 10:26:46 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:53509 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728381AbgIAOZJ (ORCPT ); Tue, 1 Sep 2020 10:25:09 -0400 Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2020 07:24:57 -0700 Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 01 Sep 2020 07:24:55 -0700 Received: from gubbaven-linux.qualcomm.com ([10.206.64.32]) by ironmsg02-blr.qualcomm.com with ESMTP; 01 Sep 2020 19:54:32 +0530 Received: by gubbaven-linux.qualcomm.com (Postfix, from userid 2365015) id A078321B32; Tue, 1 Sep 2020 19:54:30 +0530 (IST) From: Venkata Lakshmi Narayana Gubba To: marcel@holtmann.org, johan.hedberg@gmail.com Cc: mka@chromium.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org, linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org, rjliao@codeaurora.org, hbandi@codeaurora.org, abhishekpandit@chromium.org, Venkata Lakshmi Narayana Gubba Subject: [PATCH v1 0/2] Close UART port if NON_PERSISTENT_SETUP is set Date: Tue, 1 Sep 2020 19:54:25 +0530 Message-Id: <1598970267-7170-1-git-send-email-gubbaven@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org When HCI_QUIRK_NON_PERSISTENT_SETUP is set by drivers, it indicates that BT SoC will be completely powered OFF during BT OFF. On next BT ON firmware must be downloaded again. Holding UART port open during BT OFF is draining the battery. Now during BT OFF, UART port is closed if qurik HCI_QUIRK_NON_PERSISTENT_SETUP is set by clearing HCI_UART_PROTO_READY proto flag. On next BT ON, UART port is opened if HCI_UART_PROTO_READY proto flag is cleared. Venkata Lakshmi Narayana Gubba (2): Bluetooth: hci_serdev: Close UART port if NON_PERSISTENT_SETUP is set Bluetooth: hci_qca: Remove duplicate power off in proto close drivers/bluetooth/hci_qca.c | 5 ++--- drivers/bluetooth/hci_serdev.c | 36 +++++++++++++++++++++++++++++++++--- 2 files changed, 35 insertions(+), 6 deletions(-)