From patchwork Mon Nov 2 07:17:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Y.b. Lu" X-Patchwork-Id: 315162 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, 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 1C178C00A89 for ; Mon, 2 Nov 2020 07:26:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C13AB221FF for ; Mon, 2 Nov 2020 07:26:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727806AbgKBH0j (ORCPT ); Mon, 2 Nov 2020 02:26:39 -0500 Received: from inva020.nxp.com ([92.121.34.13]:35052 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727306AbgKBH0j (ORCPT ); Mon, 2 Nov 2020 02:26:39 -0500 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id B5F511A13F2; Mon, 2 Nov 2020 08:26:37 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id BE0FF1A1424; Mon, 2 Nov 2020 08:26:35 +0100 (CET) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id DB9334029C; Mon, 2 Nov 2020 08:26:32 +0100 (CET) From: Yangbo Lu To: linux-mmc@vger.kernel.org Cc: Yangbo Lu , Adrian Hunter , Ulf Hansson Subject: [PATCH] mmc: export sd3_bus_mode to user space Date: Mon, 2 Nov 2020 15:17:15 +0800 Message-Id: <20201102071715.18057-1-yangbo.lu@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org There was no way for user to know what UHS-I modes the SD card supporting. We might not know, even the highest speed mode failed to use and fell back to a lower speed mode. This patch is to export sd3_bus_mode to user space to check. Signed-off-by: Yangbo Lu --- drivers/mmc/core/sd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 6f054c4..13409c2 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -689,6 +689,7 @@ MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid); MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr); MMC_DEV_ATTR(rca, "0x%04x\n", card->rca); +MMC_DEV_ATTR(sd3_bus_mode, "0x%08x\n", card->sw_caps.sd3_bus_mode); static ssize_t mmc_dsr_show(struct device *dev, @@ -753,6 +754,7 @@ static struct attribute *sd_std_attrs[] = { &dev_attr_ocr.attr, &dev_attr_rca.attr, &dev_attr_dsr.attr, + &dev_attr_sd3_bus_mode.attr, NULL, };