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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDBEAC433FE for ; Mon, 24 Jan 2022 20:42:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1388942AbiAXUkQ (ORCPT ); Mon, 24 Jan 2022 15:40:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1385753AbiAXUeR (ORCPT ); Mon, 24 Jan 2022 15:34:17 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2973AC07E2B2; Mon, 24 Jan 2022 11:47:35 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B72E061031; Mon, 24 Jan 2022 19:47:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86BFFC340E5; Mon, 24 Jan 2022 19:47:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643053654; bh=ggla/Yz+ITzSU4ztgRFW2D+JIRyY7XHV0g+QPadtVBU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CX33/SZAJ5lsuVVXSsGcEpUlN79614YqBsEWFfutFE778afME7+6Dam51ojGvTKYR DsqoPW8AOrrN5RxmW514gLCcQqkzT6IRVOKZLhbsTRz/UPqmMZlAwzZ62BInHqBwNP 8d2hDe3WsaK6Sm35I/MNOIaN7ew9JZEdZiLv/P7E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mark-yw Chen , Sean Wang , Marcel Holtmann , Sasha Levin Subject: [PATCH 5.10 133/563] Bluetooth: btmtksdio: fix resume failure Date: Mon, 24 Jan 2022 19:38:18 +0100 Message-Id: <20220124184028.990244432@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124184024.407936072@linuxfoundation.org> References: <20220124184024.407936072@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sean Wang [ Upstream commit 561ae1d46a8ddcbc13162d5771f5ed6c8249e730 ] btmtksdio have to rely on MMC_PM_KEEP_POWER in pm_flags to avoid that SDIO power is being shut off during the device is in suspend. That fixes the SDIO command fails to access the bus after the device is resumed. Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth") Co-developed-by: Mark-yw Chen Signed-off-by: Mark-yw Chen Signed-off-by: Sean Wang Signed-off-by: Marcel Holtmann Signed-off-by: Sasha Levin --- drivers/bluetooth/btmtksdio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 5f9f027956317..74856a5862162 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -1042,6 +1042,8 @@ static int btmtksdio_runtime_suspend(struct device *dev) if (!bdev) return 0; + sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + sdio_claim_host(bdev->func); sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err); -- 2.34.1