From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F025C433E2 for ; Thu, 10 Sep 2020 10:31:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A68A208CA for ; Thu, 10 Sep 2020 10:31:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730233AbgIJKbU (ORCPT ); Thu, 10 Sep 2020 06:31:20 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:15346 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725913AbgIJKbM (ORCPT ); Thu, 10 Sep 2020 06:31:12 -0400 Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 10 Sep 2020 03:31:12 -0700 Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 10 Sep 2020 03:31:10 -0700 Received: from gubbaven-linux.qualcomm.com ([10.206.64.32]) by ironmsg01-blr.qualcomm.com with ESMTP; 10 Sep 2020 16:00:44 +0530 Received: by gubbaven-linux.qualcomm.com (Postfix, from userid 2365015) id B073B21993; Thu, 10 Sep 2020 16:00:45 +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: [RESEND v1 0/2] Close UART port if NON_PERSISTENT_SETUP is set Date: Thu, 10 Sep 2020 16:00:41 +0530 Message-Id: <1599733843-20311-1-git-send-email-gubbaven@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation