From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 788A425B090 for ; Tue, 29 Sep 2026 05:03:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790658193; cv=none; b=CRpycRibCH4YYPQcoAgYwNFaQrZwz5CEESUfpJcb6Crme4F/zie1CmhbMbnXrutOmduyELcMtEJZ0c+04pO2qlqCMDd+jDzJLXsz1e47t1LU8D/6ZX3eebrCzqUNrjJZb5sMq9WwPCKbPkpkTdbz69xJcDjxV7OSJ00C9/QMBik= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790658193; c=relaxed/simple; bh=v4orIUMjfKygHZndCeBqfkZ6P9Xq6fKt21pme1BOit4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uFSWL26UTMN08hs/fIpHcgxvVU013g3jp6dJ+tJ/KCuu+TPPI86Fz87O2nYCUhrtLeWZ8oIkELAdzXuqASLlDD27XRJj4sh9RILLGNVy07I+H2rXyjZ0sB9Ic9t5fYCo8ZqEHq0KIHLFizkZXk1WlORoLGgCaiKeEYjqknMVEc8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=aSgTm448; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="aSgTm448" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1790658191; x=1822194191; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=v4orIUMjfKygHZndCeBqfkZ6P9Xq6fKt21pme1BOit4=; b=aSgTm448Hdj25hIRRwmvixAXyAI9lJl4KOaeohrCUXzy7y6udbmfH/b1 SNmRbKyVjwaUi9eXD9FOcQjJZvsWyyTKDBnZ6fAG+EpetZBhEGiwO3PDt rtH/YyEo/ZGDVO8cWXqBDXjoSizqmNrWV98eYPd7yb5yhdXQ4D0ithbmP flGCQNq7ZBQFtmLBqgheBfzz/f8rzTsDAOx3qPou79QRZK7ytXw2C6vHl WtEipdZiwVgjUthd52kOQ+bbHhy1aLbGTd2liUTAyQ2I4oh87lV8It2Yt 4bo0VnMMWgrbJH49TwmwN7IRhdtDziNczTpIP/jzaeLYHRVWXnswRZTJI Q==; X-CSE-ConnectionGUID: ZyTQCIDhTwyixrelsNBQHQ== X-CSE-MsgGUID: A2s3arQGQTC+k6e8UWf5hw== X-IronPort-AV: E=McAfee;i="6800,10657,11919"; a="93858100" X-IronPort-AV: E=Sophos;i="6.27,129,1787036400"; d="scan'208";a="93858100" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2026 22:03:10 -0700 X-CSE-ConnectionGUID: JmLODqAHRFKP6mxrNrz7sQ== X-CSE-MsgGUID: 4j/BuNzMSxSjsPSYvwpUwQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,129,1787036400"; d="scan'208";a="301538253" Received: from weba0534.iind.intel.com ([10.66.226.131]) by fmviesa002.fm.intel.com with ESMTP; 28 Sep 2026 22:03:08 -0700 From: Sai Teja Aluvala To: linux-bluetooth@vger.kernel.org Cc: kiran.k@intel.com, chethan.tumkur.narayan@intel.com, Sai Teja Aluvala Subject: [PATCH v1] Bluetooth: btintel_pcie: Add shared HW reset for clean start Date: Tue, 29 Sep 2026 10:24:49 +0530 Message-ID: <20260929045449.200096-1-aluvala.sai.teja@intel.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Reset shared Bluetooth hardware after mapping the BAR and before setting up MSI-X interrupts, so stale device state is cleared before IRQ handlers and interrupt masks are configured. Propagate reset errors so probe aborts rather than continuing when the reset fails. Signed-off-by: Sai Teja Aluvala --- drivers/bluetooth/btintel_pcie.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c index 84a6cf2f4920..6cde68ce0304 100644 --- a/drivers/bluetooth/btintel_pcie.c +++ b/drivers/bluetooth/btintel_pcie.c @@ -2876,6 +2876,13 @@ static int btintel_pcie_config_pcie(struct pci_dev *pdev, if (IS_ERR(data->base_addr)) return PTR_ERR(data->base_addr); + /* Do shared hardware reset to ensure a clean start before + * configuring interrupts. + */ + err = btintel_pcie_reset_bt(data); + if (err) + return err; + err = btintel_pcie_setup_irq(data); if (err) return err; -- 2.53.0