From patchwork Tue Mar 10 00:13:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 11435781 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 49C946CA for ; Fri, 13 Mar 2020 01:12:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 28736206F7 for ; Fri, 13 Mar 2020 01:12:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727111AbgCMBL0 (ORCPT ); Thu, 12 Mar 2020 21:11:26 -0400 Received: from 97-93-29-23.dhcp.snlo.ca.charter.com ([97.93.29.23]:54448 "EHLO skomatineni-linux.nvidia.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726834AbgCMBL0 (ORCPT ); Thu, 12 Mar 2020 21:11:26 -0400 Received: by skomatineni-linux.nvidia.com (Postfix, from userid 1000) id 487201040074; Mon, 9 Mar 2020 17:13:27 -0700 (PDT) From: Sowjanya Komatineni To: adrian.hunter@intel.com, ulf.hansson@linaro.org, baolin.wang@linaro.org, kstewart@linuxfoundation.org, tglx@linutronix.de, bradleybolen@gmail.com, gregkh@linuxfoundation.org, thierry.reding@gmail.com, jonathanh@nvidia.com Cc: skomatineni@nvidia.com, anrao@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org Subject: [PATCH v1 3/3] mmc: tegra: Enable host capability MMC_CAP2_LONG_WAIT_HW_BUSY Date: Mon, 9 Mar 2020 17:13:25 -0700 Message-Id: <1583799205-8442-3-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1583799205-8442-1-git-send-email-skomatineni@nvidia.com> References: <1583799205-8442-1-git-send-email-skomatineni@nvidia.com> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Some mmc operations take longer than maximum HW busy detection and mmc core driver converts R1B type to R1 type response for these operations based on host max busy timeout and command operation time and uses SW poll for busy. Tegra host support long HW busy detection where host waits forever till the card is busy. This patch enables MMC_CAP2_LONG_WAIT_HW_BUSY capability for Tegra host. Signed-off-by: Sowjanya Komatineni Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-tegra.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 40a221d..9d0f371 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -1583,6 +1583,7 @@ 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; + host->mmc->caps2 |= MMC_CAP2_LONG_WAIT_HW_BUSY; tegra_sdhci_parse_dt(host); tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",