From patchwork Wed Jun 8 08:20:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Lin X-Patchwork-Id: 9163601 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C902F60467 for ; Wed, 8 Jun 2016 08:21:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B80FB2834A for ; Wed, 8 Jun 2016 08:21:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ACC7928392; Wed, 8 Jun 2016 08:21:23 +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=-6.9 required=2.0 tests=BAYES_00,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 1E8AD2838E for ; Wed, 8 Jun 2016 08:21:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756480AbcFHIVS (ORCPT ); Wed, 8 Jun 2016 04:21:18 -0400 Received: from lucky1.263xmail.com ([211.157.147.135]:51458 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756477AbcFHIVQ (ORCPT ); Wed, 8 Jun 2016 04:21:16 -0400 Received: from shawn.lin?rock-chips.com (unknown [192.168.167.78]) by lucky1.263xmail.com (Postfix) with SMTP id 888576F3; Wed, 8 Jun 2016 16:21:11 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 9E2552E3B0; Wed, 8 Jun 2016 16:21:00 +0800 (CST) X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: ulf.hansson@linaro.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: lintao@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 14416BEHBWX; Wed, 08 Jun 2016 16:21:04 +0800 (CST) From: Shawn Lin To: Ulf Hansson Cc: Jaehoon Chung , Rob Herring , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Doug Anderson , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, Shawn Lin Subject: [RFC PATCH 3/4] mmc: core: add cap-no-sd and cap-no-mmc properties Date: Wed, 8 Jun 2016 16:20:57 +0800 Message-Id: <1465374057-2608-1-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1465373996-2485-1-git-send-email-shawn.lin@rock-chips.com> References: <1465373996-2485-1-git-send-email-shawn.lin@rock-chips.com> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce cap-no-sd and cap-no-mmc properties to skip sending sd and mmc commands during initialization respectively. Signed-off-by: Shawn Lin --- drivers/mmc/core/host.c | 4 ++++ include/linux/mmc/host.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 933eeea..c760097 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -298,6 +298,10 @@ int mmc_of_parse(struct mmc_host *host) host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE; if (of_property_read_bool(np, "cap-no-sdio")) host->caps2 |= MMC_CAP2_NO_SDIO; + if (of_property_read_bool(np, "cap-no-sd")) + host->caps2 |= MMC_CAP2_NO_SD; + if (of_property_read_bool(np, "cap-no-mmc")) + host->caps2 |= MMC_CAP2_NO_MMC; if (of_property_read_bool(np, "keep-power-in-suspend")) host->pm_caps |= MMC_PM_KEEP_POWER; if (of_property_read_bool(np, "wakeup-source") || diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index d72c0c3..1bd77c7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -309,6 +309,8 @@ struct mmc_host { #define MMC_CAP2_NO_WRITE_PROTECT (1 << 18) /* No physical write protect pin, assume that card is always read-write */ #define MMC_CAP2_NO_SDIO (1 << 19) /* Do not send SDIO commands during initialization */ #define MMC_CAP2_HS400_ES (1 << 20) /* Host supports enhanced strobe */ +#define MMC_CAP2_NO_SD (1 << 21) /* Do not send SD commands during initialization */ +#define MMC_CAP2_NO_MMC (1 << 22) /* Do not send MMC commands during initialization */ mmc_pm_flag_t pm_caps; /* supported pm features */