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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 8A16DC3A5A9 for ; Mon, 4 May 2020 18:02:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6BAE9206B8 for ; Mon, 4 May 2020 18:02:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588615342; bh=OfM4L/DSXzomjs6joc4qF0cINSrNJaXOJcZUMqDCA5g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D2INgQxSw1/CNW1JYdB2+q2B+SMCz4N8qx4XTiR47+Rznuf2ybyU7xgOEvNe23xMn TNP9vLM8OFtfu02GTlUUuclQ+9KNS8rSzAEYa5/VwfeL20zIHQGkT1k6ZSnabZuldN JPhA+ycsGQqv0zJjCf5n7I6Sj5cX0Sj4medXsxVg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730798AbgEDSCV (ORCPT ); Mon, 4 May 2020 14:02:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:58572 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731306AbgEDSCS (ORCPT ); Mon, 4 May 2020 14:02:18 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BFD5920707; Mon, 4 May 2020 18:02:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588615338; bh=OfM4L/DSXzomjs6joc4qF0cINSrNJaXOJcZUMqDCA5g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dl/FwMbYadvN7ZSOdrBetb/e5iy3xMvzIbo1UNv6RzfHKry8SPbujQiKZZMthTShB seiUjUNFX1Ne15kCLpSESSrZv/W6y9VeJi2kT0SUPi6jUilv8t+qAU1hVekkM9pxcY /FgAJk57BJ2La5PC46xjzLHS2fhUTUpIJF4Bzi+4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Veerabhadrarao Badiganti , Adrian Hunter , Ulf Hansson Subject: [PATCH 4.19 35/37] mmc: sdhci-msm: Enable host capabilities pertains to R1b response Date: Mon, 4 May 2020 19:57:48 +0200 Message-Id: <20200504165451.839824034@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200504165448.264746645@linuxfoundation.org> References: <20200504165448.264746645@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Veerabhadrarao Badiganti commit 9d8cb58691f85cef687512262acb2c7109ee4868 upstream. MSM sd host controller is capable of HW busy detection of device busy signaling over DAT0 line. And it requires the R1B response for commands that have this response associated with them. So set the below two host capabilities for qcom SDHC. - MMC_CAP_WAIT_WHILE_BUSY - MMC_CAP_NEED_RSP_BUSY Recent development of the mmc core in regards to this, revealed this as being a potential bug, hence the stable tag. Cc: # v4.19+ Signed-off-by: Veerabhadrarao Badiganti Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/1587363626-20413-2-git-send-email-vbadigan@codeaurora.org Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sdhci-msm.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -1909,6 +1909,8 @@ static int sdhci_msm_probe(struct platfo goto clk_disable; } + msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_NEED_RSP_BUSY; + pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev);