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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 DFEB7C43331 for ; Wed, 1 Apr 2020 16:24:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 855B320857 for ; Wed, 1 Apr 2020 16:24:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758281; bh=Eug2EWDyBEe60N8NLdEPL/WzXN6kig0maV7cbKGLrfo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=L5FrqhgIuUuy1ni/BWJ8BU+ikhXB7nozIRj08h5UAizgQbm/CnqBI4ETV1yIjfY5s aEVIGAbdufemPh+h2KKpNNPcEVWOVkHxLUi1qbBXaFCE1LKHKb71JQHrBGC9ogGmxl YE6ZkmM5/ybrLk7Ix9ChEXLb1a+Z+4A3PoNClA8Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387718AbgDAQYk (ORCPT ); Wed, 1 Apr 2020 12:24:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:48330 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732888AbgDAQYi (ORCPT ); Wed, 1 Apr 2020 12:24:38 -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 124A120BED; Wed, 1 Apr 2020 16:24:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758277; bh=Eug2EWDyBEe60N8NLdEPL/WzXN6kig0maV7cbKGLrfo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z3goj7kvj+R2PZ+Hg6ZV5SgsjzdwJDTVoO+QEODFul0Mik31K3uXoTT+QUx+rWG08 bkdVIYABnGY1F3ugdYlPfBuhInbRJ/MiQTmQ54fVT0cSiQt29vSFkIIcO+YcF+MZWK u0jgYraVANcPTBM04OR00KyoegkUkvIoBfsmcjI4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bitan Biswas , Peter Geis , Sowjanya Komatineni , Ulf Hansson , Sasha Levin Subject: [PATCH 4.19 005/116] mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY Date: Wed, 1 Apr 2020 18:16:21 +0200 Message-Id: <20200401161543.059809061@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200401161542.669484650@linuxfoundation.org> References: <20200401161542.669484650@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: Ulf Hansson [ Upstream commit d2f8bfa4bff5028bc40ed56b4497c32e05b0178f ] It has turned out that the sdhci-tegra controller requires the R1B response, for commands that has this response associated with them. So, converting from an R1B to an R1 response for a CMD6 for example, leads to problems with the HW busy detection support. Fix this by informing the mmc core about the requirement, via setting the host cap, MMC_CAP_NEED_RSP_BUSY. Reported-by: Bitan Biswas Reported-by: Peter Geis Suggested-by: Sowjanya Komatineni Cc: Tested-by: Sowjanya Komatineni Tested-By: Peter Geis Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/mmc/host/sdhci-tegra.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 14d749a0de954..27bdf6d499bd2 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -502,6 +502,9 @@ static int sdhci_tegra_probe(struct platform_device *pdev) if (tegra_host->soc_data->nvquirks & NVQUIRK_ENABLE_DDR50) host->mmc->caps |= MMC_CAP_1_8V_DDR; + /* R1B responses is required to properly manage HW busy detection. */ + host->mmc->caps |= MMC_CAP_NEED_RSP_BUSY; + tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power", GPIOD_OUT_HIGH); if (IS_ERR(tegra_host->power_gpio)) { -- 2.20.1