From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 820034E7816; Tue, 13 Oct 2026 12:28:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791894497; cv=none; b=jeLCZwEI+Iqt3JsHKEfyJBsZ+8/t52smE+P9K6cD1LpyRU8lU3LCdmB+gjEaSA6n3gJDRd3QX3Yo4qLOycTZkE75Y/B01FYY9IM4GA4FlnqvDtV7aKpXffvIwnHANZN7F8z8+YtgM7SYbvQLvqHfIW9k+Z9Y/qqvI6m8LXblymQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791894497; c=relaxed/simple; bh=Mbt5A9SuYXSjHJu/32l8fO6xt/vn2pYBWPd+VZhDtBI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z4r2wqNhq/Hv/yHW+ZqhJIXo9rRgQWzrQzMZdh9B+lvW9YIK2QC3cbZIHzhQE+Fiy915aSX2DtOVd0Wd7FtJHWS9ljAxCZMAdbBS/W4DIQp7I02bdoUc5p5H0GvtUjBTaKFHbMA2oDQu0VQihHpg6lIUTe9dfVP9pZpyElmZBUs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nKGwZUyx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nKGwZUyx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3B961F000FF; Tue, 13 Oct 2026 12:28:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791894496; bh=8xqEHj3pdhf0Z1tNT2AjAerGWL8NFr2oIIRqZnyS9bA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=nKGwZUyxylCQafC+lVyRerlJPxZKW6gTiTRKgUqHkp4d1tlZJJwbF5ltpwwWUztee YXdL/212AYtNAuaGvCL8CZt6w0ntE4UtarhwuXXmHd/9Euz5jCKf86D0LbB2yiSSrM XGDSw/97igAyDiL46C61ilQxo6jpdUU0J2IiOWuI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sai Teja Aluvala , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 6.18 536/621] Bluetooth: btintel_pcie: Add shared HW reset for clean start Date: Tue, 13 Oct 2026 13:38:51 +0200 Message-ID: <20261013112933.538925736@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261013112920.855194808@linuxfoundation.org> References: <20261013112920.855194808@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sai Teja Aluvala [ Upstream commit 1465494e8d07426fa41c0021530cccb2a1ac38fa ] 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. Fixes: c2b636b3f788 ("Bluetooth: btintel_pcie: Add support for PCIe transport") Signed-off-by: Sai Teja Aluvala Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- 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 87f8b8b93f2ed..3e8c894fbf640 100644 --- a/drivers/bluetooth/btintel_pcie.c +++ b/drivers/bluetooth/btintel_pcie.c @@ -1643,6 +1643,13 @@ 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