From patchwork Tue Feb 26 16:16:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Faiz Abbas X-Patchwork-Id: 10830521 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 79C541575 for ; Tue, 26 Feb 2019 16:13:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 68BF02CF66 for ; Tue, 26 Feb 2019 16:13:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C35D2CFB8; Tue, 26 Feb 2019 16:13:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA45F2CF66 for ; Tue, 26 Feb 2019 16:13:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727731AbfBZQNE (ORCPT ); Tue, 26 Feb 2019 11:13:04 -0500 Received: from lelv0142.ext.ti.com ([198.47.23.249]:58634 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727216AbfBZQND (ORCPT ); Tue, 26 Feb 2019 11:13:03 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x1QGD1ZN084848; Tue, 26 Feb 2019 10:13:01 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1551197581; bh=YyyuepRku4r0N0gZmEQKFhHxAZQozji75KCazLwc3ms=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=qGfUvQSRvdAcUAEq+v5AYPynDvkVCa093cuaUtJu0MnPuXM7z2lEI7AhkCW11L9LA aRJi9PlDx3NXGJoC0g0SvSgVuoREqxjnvGnEZtW6KLtpq+mJYlNxcnOs00+YjNncKS mSV+YpgOtnBpNUf0e9zjQEmKsQv/h6aVippmpIQs= Received: from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x1QGD0Gk036246 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 Feb 2019 10:13:00 -0600 Received: from DFLE105.ent.ti.com (10.64.6.26) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Tue, 26 Feb 2019 10:13:00 -0600 Received: from dlep33.itg.ti.com (157.170.170.75) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Tue, 26 Feb 2019 10:13:00 -0600 Received: from a0230074-OptiPlex-7010.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id x1QGCrY8024164; Tue, 26 Feb 2019 10:12:58 -0600 From: Faiz Abbas To: , , CC: , , , Subject: [PATCH 2/2] mmc: sdhci-omap: Don't finish_mrq() on a command error during tuning Date: Tue, 26 Feb 2019 21:46:06 +0530 Message-ID: <20190226161606.18569-3-faiz_abbas@ti.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190226161606.18569-1-faiz_abbas@ti.com> References: <20190226161606.18569-1-faiz_abbas@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP commit 5b0d62108b46 ("mmc: sdhci-omap: Add platform specific reset callback") skips data resets during tuning operation. Because of this, a data error or data finish interrupt might still arrive after a command error has been handled and the mrq ended. This ends up with a "mmc0: Got data interrupt 0x00000002 even though no data operation was in progress" error message. Fix this by adding a platform specific callback for command errors. Mark the mrq as a failure but wait for a data interrupt instead of calling finish_mrq(). Fixes: 5b0d62108b46 ("mmc: sdhci-omap: Add platform specific reset callback") Signed-off-by: Faiz Abbas --- drivers/mmc/host/sdhci-omap.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index c11c18a9aacb..f73ded5cc527 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -797,6 +797,29 @@ void sdhci_omap_reset(struct sdhci_host *host, u8 mask) sdhci_reset(host, mask); } +void sdhci_omap_cmd_err(struct sdhci_host *host, u32 intmask, u32 *intmask_p) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host); + + if (omap_host->is_tuning) { + /* + * Since we are not resetting data lines during tuning + * operation, data error or data complete interrupts + * might still arrive. Mark this request as a failure + * but still wait for the data interrupt + */ + if (intmask & SDHCI_INT_TIMEOUT) + host->cmd->error = -ETIMEDOUT; + else + host->cmd->error = -EILSEQ; + + sdhci_finish_command(host); + } else { + sdhci_cmd_err(host, intmask, intmask_p); + } +} + static struct sdhci_ops sdhci_omap_ops = { .set_clock = sdhci_omap_set_clock, .set_power = sdhci_omap_set_power, @@ -807,6 +830,7 @@ static struct sdhci_ops sdhci_omap_ops = { .platform_send_init_74_clocks = sdhci_omap_init_74_clocks, .reset = sdhci_omap_reset, .set_uhs_signaling = sdhci_omap_set_uhs_signaling, + .platform_cmd_err = sdhci_omap_cmd_err, }; static int sdhci_omap_set_capabilities(struct sdhci_omap_host *omap_host)