From patchwork Mon Jan 24 18:33:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 535098 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 D3D06C433F5 for ; Mon, 24 Jan 2022 23:05:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1842219AbiAXXBR (ORCPT ); Mon, 24 Jan 2022 18:01:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355089AbiAXWlr (ORCPT ); Mon, 24 Jan 2022 17:41:47 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B3E0C047CF7; Mon, 24 Jan 2022 13:05:05 -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 ams.source.kernel.org (Postfix) with ESMTPS id 59A9FB81057; Mon, 24 Jan 2022 21:05:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 830DFC340E7; Mon, 24 Jan 2022 21:05:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643058303; bh=wstrC+IV/cNIbO9MQU9ClBIKDF2ZwJOJuBP3G7iJnG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=saDtUQuoghDWsTbRFFVEwqdq96llmyWwmvFSCouBEEsMXHQa7On9WdDz/eHO3c6sL aGINcA8fuSLsJMm4tWct1K9mWuGuig7/XowIgqprYa5Xv6rB+ABDt8jUmhTEICzYTU F69cYJAMOnmnW/wBii+YTClDOweCGv5aYH+mhIFw= 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 5.16 0228/1039] Bluetooth: btmtksdio: fix resume failure Date: Mon, 24 Jan 2022 19:33:37 +0100 Message-Id: <20220124184132.990201935@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124184125.121143506@linuxfoundation.org> References: <20220124184125.121143506@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 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 9872ef18f9fea..1cbdeca1fdc4a 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);