From patchwork Wed Oct 13 20:17:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 12556863 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EEB2C4332F for ; Wed, 13 Oct 2021 20:17:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F368D61139 for ; Wed, 13 Oct 2021 20:17:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229878AbhJMUT3 (ORCPT ); Wed, 13 Oct 2021 16:19:29 -0400 Received: from mga06.intel.com ([134.134.136.31]:11509 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229698AbhJMUT1 (ORCPT ); Wed, 13 Oct 2021 16:19:27 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10136"; a="288394614" X-IronPort-AV: E=Sophos;i="5.85,371,1624345200"; d="scan'208";a="288394614" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2021 13:17:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,371,1624345200"; d="scan'208";a="527223151" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga008.fm.intel.com with ESMTP; 13 Oct 2021 13:17:21 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 311EAB7; Wed, 13 Oct 2021 23:17:29 +0300 (EEST) From: Andy Shevchenko To: Ulf Hansson , Eric Biggers , Raul E Rangel , Andy Shevchenko , Adrian Hunter , linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org Subject: [PATCH v2 1/6] mmc: sdhci-pci: Read card detect from ACPI for Intel Merrifield Date: Wed, 13 Oct 2021 23:17:18 +0300 Message-Id: <20211013201723.52212-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211013201723.52212-1-andriy.shevchenko@linux.intel.com> References: <20211013201723.52212-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Intel Merrifield platform had been converted to use ACPI enumeration. However, the driver missed an update to retrieve card detect GPIO. Fix it here. Unfortunately we can't rely on CD GPIO state because there are two different PCB designs in the wild that are using the opposite card detection sense and there is no way to distinguish those platforms, that's why ignore CD GPIO completely and use it only as an event. Fixes: 4590d98f5a4f ("sfi: Remove framework for deprecated firmware") BugLink: https://github.com/edison-fw/meta-intel-edison/issues/135 Signed-off-by: Andy Shevchenko Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-pci-core.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index be19785227fe..d0f2edfe296c 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -616,16 +616,12 @@ static int intel_select_drive_strength(struct mmc_card *card, return intel_host->drv_strength; } -static int bxt_get_cd(struct mmc_host *mmc) +static int sdhci_get_cd_nogpio(struct mmc_host *mmc) { - int gpio_cd = mmc_gpio_get_cd(mmc); struct sdhci_host *host = mmc_priv(mmc); unsigned long flags; int ret = 0; - if (!gpio_cd) - return 0; - spin_lock_irqsave(&host->lock, flags); if (host->flags & SDHCI_DEVICE_DEAD) @@ -638,6 +634,21 @@ static int bxt_get_cd(struct mmc_host *mmc) return ret; } +static int bxt_get_cd(struct mmc_host *mmc) +{ + int gpio_cd = mmc_gpio_get_cd(mmc); + + if (!gpio_cd) + return 0; + + return sdhci_get_cd_nogpio(mmc); +} + +static int mrfld_get_cd(struct mmc_host *mmc) +{ + return sdhci_get_cd_nogpio(mmc); +} + #define SDHCI_INTEL_PWR_TIMEOUT_CNT 20 #define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100 @@ -1341,6 +1352,14 @@ static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot) MMC_CAP_1_8V_DDR; break; case INTEL_MRFLD_SD: + slot->cd_idx = 0; + slot->cd_override_level = true; + /* + * There are two PCB designs of SD card slot with the opposite + * card detection sense. Quirk this out by ignoring GPIO state + * completely in the custom ->get_cd() callback. + */ + slot->host->mmc_host_ops.get_cd = mrfld_get_cd; slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; break; case INTEL_MRFLD_SDIO: